diff --git a/include/redismodule-rlec.h b/include/redismodule-rlec.h
new file mode 100644
index 0000000..44657d6
--- /dev/null
+++ b/include/redismodule-rlec.h
@@ -0,0 +1,97 @@
+
+#pragma once
+
+// clang-format off
+
+#include <sys/types.h>
+#include <stdint.h>
+#include <stdio.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+//---------------------------------------------------------------------------------------------
+// bigredis extensions
+
+#define REDISMODULE_METADATA_NOT_ON_SWAP 0x80
+
+/* Notification that a key's value is added to ram (from swap or otherwise).
+ * swap_key_flags has 4 bits that the module can write / read.
+ * when swap_key_metadata is NOT_ON_SWAP, it means the key is not loaded from swap. */
+typedef void (*RedisModuleTypeKeyAddedToDbDictFunc)(RedisModuleCtx *ctx, RedisModuleString *key, void *value, int swap_key_metadata);
+
+/* Notification that a key's value is removed from ram (may still exist on swap).
+ * when swap_key_metadata is NOT_ON_SWAP it means the key does not exist on swap.
+ * return swap_key_metadata or NOT_ON_SWAP if key is to be deleted (and not to be written). */
+typedef int (*RedisModuleTypeRemovingKeyFromDbDictFunc)(RedisModuleCtx *ctx, RedisModuleString *key, void *value, int swap_key_metadata, int writing_to_swap);
+
+/* return swap_key_metadata, 0 indicates nothing to write. when out_min_expire is -1 it indicates nothing to write. */
+typedef int (*RedisModuleTypeGetKeyMetadataForRdbFunc)(RedisModuleCtx *ctx, RedisModuleString *key, void *value, long long *out_min_expire, long long *out_max_expire);
+
+#define REDISMODULE_TYPE_EXT_METHOD_VERSION 1
+typedef struct RedisModuleTypeExtMethods {
+    uint64_t version;
+    RedisModuleTypeKeyAddedToDbDictFunc key_added_to_db_dict;
+    RedisModuleTypeRemovingKeyFromDbDictFunc removing_key_from_db_dict;
+    RedisModuleTypeGetKeyMetadataForRdbFunc get_key_metadata_for_rdb;
+} RedisModuleTypeExtMethods;
+
+typedef void (*RedisModuleSwapPrefetchCB)(RedisModuleCtx *ctx, RedisModuleString *key, void* user_data);
+
+/* APIs */
+
+REDISMODULE_API int (*RedisModule_SetDataTypeExtensions)(RedisModuleCtx *ctx, RedisModuleType *mt, RedisModuleTypeExtMethods *typemethods) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_SwapPrefetchKey)(RedisModuleCtx *ctx, RedisModuleString *keyname, RedisModuleSwapPrefetchCB fn, void *user_data, int flags) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_GetSwapKeyMetadata)(RedisModuleCtx *ctx, RedisModuleString *key) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_SetSwapKeyMetadata)(RedisModuleCtx *ctx, RedisModuleString *key, int module_metadata) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_IsKeyInRam)(RedisModuleCtx *ctx, RedisModuleString *key) REDISMODULE_ATTR;
+
+//---------------------------------------------------------------------------------------------
+
+/* Keyspace changes notification classes. Every class is associated with a
+ * character for configuration purposes.
+ * NOTE: These have to be in sync with NOTIFY_* in server.h */
+
+#define REDISMODULE_NOTIFY_TRIMMED (1<<30)     /* trimmed by reshard trimming enterprise only event */
+
+/* Server events definitions.
+ * Those flags should not be used directly by the module, instead
+ * the module should use RedisModuleEvent_* variables */
+
+#define REDISMODULE_EVENT_SHARDING 1000
+
+static const RedisModuleEvent
+    RedisModuleEvent_Sharding = {
+        REDISMODULE_EVENT_SHARDING,
+        1
+    };
+
+/* Those are values that are used for the 'subevent' callback argument. */
+
+#define REDISMODULE_SUBEVENT_SHARDING_SLOT_RANGE_CHANGED 0
+#define REDISMODULE_SUBEVENT_SHARDING_TRIMMING_STARTED 1
+#define REDISMODULE_SUBEVENT_SHARDING_TRIMMING_ENDED 2
+
+/* APIs */
+
+REDISMODULE_API int (*RedisModule_ShardingGetKeySlot)(RedisModuleString *keyname) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_ShardingGetSlotRange)(int *first_slot, int *last_slot) REDISMODULE_ATTR;
+
+//---------------------------------------------------------------------------------------------
+
+#define REDISMODULE_RLEC_API_DEFS \
+    REDISMODULE_GET_API(ShardingGetKeySlot); \
+    REDISMODULE_GET_API(ShardingGetSlotRange); \
+    REDISMODULE_GET_API(SetDataTypeExtensions); \
+    REDISMODULE_GET_API(SwapPrefetchKey); \
+    REDISMODULE_GET_API(GetSwapKeyMetadata); \
+    REDISMODULE_GET_API(SetSwapKeyMetadata); \
+    REDISMODULE_GET_API(IsKeyInRam); \
+    /**/
+
+//---------------------------------------------------------------------------------------------
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/include/redismodule.h b/include/redismodule.h
new file mode 100644
index 0000000..e8fea08
--- /dev/null
+++ b/include/redismodule.h
@@ -0,0 +1,1582 @@
+#ifndef REDISMODULE_H
+#define REDISMODULE_H
+
+// clang-format off
+
+#include <sys/types.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* ---------------- Defines common between core and modules --------------- */
+
+/* Error status return values. */
+#define REDISMODULE_OK 0
+#define REDISMODULE_ERR 1
+
+/* API versions. */
+#define REDISMODULE_APIVER_1 1
+
+/* Version of the RedisModuleTypeMethods structure. Once the RedisModuleTypeMethods 
+ * structure is changed, this version number needs to be changed synchronistically. */
+#define REDISMODULE_TYPE_METHOD_VERSION 4
+
+/* API flags and constants */
+#define REDISMODULE_READ (1<<0)
+#define REDISMODULE_WRITE (1<<1)
+
+/* RedisModule_OpenKey extra flags for the 'mode' argument.
+ * Avoid touching the LRU/LFU of the key when opened. */
+#define REDISMODULE_OPEN_KEY_NOTOUCH (1<<16)
+
+/* List push and pop */
+#define REDISMODULE_LIST_HEAD 0
+#define REDISMODULE_LIST_TAIL 1
+
+/* Key types. */
+#define REDISMODULE_KEYTYPE_EMPTY 0
+#define REDISMODULE_KEYTYPE_STRING 1
+#define REDISMODULE_KEYTYPE_LIST 2
+#define REDISMODULE_KEYTYPE_HASH 3
+#define REDISMODULE_KEYTYPE_SET 4
+#define REDISMODULE_KEYTYPE_ZSET 5
+#define REDISMODULE_KEYTYPE_MODULE 6
+#define REDISMODULE_KEYTYPE_STREAM 7
+
+/* Reply types. */
+#define REDISMODULE_REPLY_UNKNOWN -1
+#define REDISMODULE_REPLY_STRING 0
+#define REDISMODULE_REPLY_ERROR 1
+#define REDISMODULE_REPLY_INTEGER 2
+#define REDISMODULE_REPLY_ARRAY 3
+#define REDISMODULE_REPLY_NULL 4
+#define REDISMODULE_REPLY_MAP 5
+#define REDISMODULE_REPLY_SET 6
+#define REDISMODULE_REPLY_BOOL 7
+#define REDISMODULE_REPLY_DOUBLE 8
+#define REDISMODULE_REPLY_BIG_NUMBER 9
+#define REDISMODULE_REPLY_VERBATIM_STRING 10
+#define REDISMODULE_REPLY_ATTRIBUTE 11
+
+/* Postponed array length. */
+#define REDISMODULE_POSTPONED_ARRAY_LEN -1  /* Deprecated, please use REDISMODULE_POSTPONED_LEN */
+#define REDISMODULE_POSTPONED_LEN -1
+
+/* Expire */
+#define REDISMODULE_NO_EXPIRE -1
+
+/* Sorted set API flags. */
+#define REDISMODULE_ZADD_XX      (1<<0)
+#define REDISMODULE_ZADD_NX      (1<<1)
+#define REDISMODULE_ZADD_ADDED   (1<<2)
+#define REDISMODULE_ZADD_UPDATED (1<<3)
+#define REDISMODULE_ZADD_NOP     (1<<4)
+#define REDISMODULE_ZADD_GT      (1<<5)
+#define REDISMODULE_ZADD_LT      (1<<6)
+
+/* Hash API flags. */
+#define REDISMODULE_HASH_NONE       0
+#define REDISMODULE_HASH_NX         (1<<0)
+#define REDISMODULE_HASH_XX         (1<<1)
+#define REDISMODULE_HASH_CFIELDS    (1<<2)
+#define REDISMODULE_HASH_EXISTS     (1<<3)
+#define REDISMODULE_HASH_COUNT_ALL  (1<<4)
+
+#define REDISMODULE_CONFIG_DEFAULT 0 /* This is the default for a module config. */
+#define REDISMODULE_CONFIG_IMMUTABLE (1ULL<<0) /* Can this value only be set at startup? */
+#define REDISMODULE_CONFIG_SENSITIVE (1ULL<<1) /* Does this value contain sensitive information */
+#define REDISMODULE_CONFIG_HIDDEN (1ULL<<4) /* This config is hidden in `config get <pattern>` (used for tests/debugging) */
+#define REDISMODULE_CONFIG_PROTECTED (1ULL<<5) /* Becomes immutable if enable-protected-configs is enabled. */
+#define REDISMODULE_CONFIG_DENY_LOADING (1ULL<<6) /* This config is forbidden during loading. */
+
+#define REDISMODULE_CONFIG_MEMORY (1ULL<<7) /* Indicates if this value can be set as a memory value */
+#define REDISMODULE_CONFIG_BITFLAGS (1ULL<<8) /* Indicates if this value can be set as a multiple enum values */
+
+/* StreamID type. */
+typedef struct RedisModuleStreamID {
+    uint64_t ms;
+    uint64_t seq;
+} RedisModuleStreamID;
+
+/* StreamAdd() flags. */
+#define REDISMODULE_STREAM_ADD_AUTOID (1<<0)
+/* StreamIteratorStart() flags. */
+#define REDISMODULE_STREAM_ITERATOR_EXCLUSIVE (1<<0)
+#define REDISMODULE_STREAM_ITERATOR_REVERSE (1<<1)
+/* StreamIteratorTrim*() flags. */
+#define REDISMODULE_STREAM_TRIM_APPROX (1<<0)
+
+/* Context Flags: Info about the current context returned by
+ * RM_GetContextFlags(). */
+
+/* The command is running in the context of a Lua script */
+#define REDISMODULE_CTX_FLAGS_LUA (1<<0)
+/* The command is running inside a Redis transaction */
+#define REDISMODULE_CTX_FLAGS_MULTI (1<<1)
+/* The instance is a master */
+#define REDISMODULE_CTX_FLAGS_MASTER (1<<2)
+/* The instance is a slave */
+#define REDISMODULE_CTX_FLAGS_SLAVE (1<<3)
+/* The instance is read-only (usually meaning it's a slave as well) */
+#define REDISMODULE_CTX_FLAGS_READONLY (1<<4)
+/* The instance is running in cluster mode */
+#define REDISMODULE_CTX_FLAGS_CLUSTER (1<<5)
+/* The instance has AOF enabled */
+#define REDISMODULE_CTX_FLAGS_AOF (1<<6)
+/* The instance has RDB enabled */
+#define REDISMODULE_CTX_FLAGS_RDB (1<<7)
+/* The instance has Maxmemory set */
+#define REDISMODULE_CTX_FLAGS_MAXMEMORY (1<<8)
+/* Maxmemory is set and has an eviction policy that may delete keys */
+#define REDISMODULE_CTX_FLAGS_EVICT (1<<9)
+/* Redis is out of memory according to the maxmemory flag. */
+#define REDISMODULE_CTX_FLAGS_OOM (1<<10)
+/* Less than 25% of memory available according to maxmemory. */
+#define REDISMODULE_CTX_FLAGS_OOM_WARNING (1<<11)
+/* The command was sent over the replication link. */
+#define REDISMODULE_CTX_FLAGS_REPLICATED (1<<12)
+/* Redis is currently loading either from AOF or RDB. */
+#define REDISMODULE_CTX_FLAGS_LOADING (1<<13)
+/* The replica has no link with its master, note that
+ * there is the inverse flag as well:
+ *
+ *  REDISMODULE_CTX_FLAGS_REPLICA_IS_ONLINE
+ *
+ * The two flags are exclusive, one or the other can be set. */
+#define REDISMODULE_CTX_FLAGS_REPLICA_IS_STALE (1<<14)
+/* The replica is trying to connect with the master.
+ * (REPL_STATE_CONNECT and REPL_STATE_CONNECTING states) */
+#define REDISMODULE_CTX_FLAGS_REPLICA_IS_CONNECTING (1<<15)
+/* THe replica is receiving an RDB file from its master. */
+#define REDISMODULE_CTX_FLAGS_REPLICA_IS_TRANSFERRING (1<<16)
+/* The replica is online, receiving updates from its master. */
+#define REDISMODULE_CTX_FLAGS_REPLICA_IS_ONLINE (1<<17)
+/* There is currently some background process active. */
+#define REDISMODULE_CTX_FLAGS_ACTIVE_CHILD (1<<18)
+/* The next EXEC will fail due to dirty CAS (touched keys). */
+#define REDISMODULE_CTX_FLAGS_MULTI_DIRTY (1<<19)
+/* Redis is currently running inside background child process. */
+#define REDISMODULE_CTX_FLAGS_IS_CHILD (1<<20)
+/* The current client does not allow blocking, either called from
+ * within multi, lua, or from another module using RM_Call */
+#define REDISMODULE_CTX_FLAGS_DENY_BLOCKING (1<<21)
+/* The current client uses RESP3 protocol */
+#define REDISMODULE_CTX_FLAGS_RESP3 (1<<22)
+/* Redis is currently async loading database for diskless replication. */
+#define REDISMODULE_CTX_FLAGS_ASYNC_LOADING (1<<23)
+
+/* Next context flag, must be updated when adding new flags above!
+This flag should not be used directly by the module.
+ * Use RedisModule_GetContextFlagsAll instead. */
+#define _REDISMODULE_CTX_FLAGS_NEXT (1<<24)
+
+/* Keyspace changes notification classes. Every class is associated with a
+ * character for configuration purposes.
+ * NOTE: These have to be in sync with NOTIFY_* in server.h */
+#define REDISMODULE_NOTIFY_KEYSPACE (1<<0)    /* K */
+#define REDISMODULE_NOTIFY_KEYEVENT (1<<1)    /* E */
+#define REDISMODULE_NOTIFY_GENERIC (1<<2)     /* g */
+#define REDISMODULE_NOTIFY_STRING (1<<3)      /* $ */
+#define REDISMODULE_NOTIFY_LIST (1<<4)        /* l */
+#define REDISMODULE_NOTIFY_SET (1<<5)         /* s */
+#define REDISMODULE_NOTIFY_HASH (1<<6)        /* h */
+#define REDISMODULE_NOTIFY_ZSET (1<<7)        /* z */
+#define REDISMODULE_NOTIFY_EXPIRED (1<<8)     /* x */
+#define REDISMODULE_NOTIFY_EVICTED (1<<9)     /* e */
+#define REDISMODULE_NOTIFY_STREAM (1<<10)     /* t */
+#define REDISMODULE_NOTIFY_KEY_MISS (1<<11)   /* m (Note: This one is excluded from REDISMODULE_NOTIFY_ALL on purpose) */
+#define REDISMODULE_NOTIFY_LOADED (1<<12)     /* module only key space notification, indicate a key loaded from rdb */
+#define REDISMODULE_NOTIFY_MODULE (1<<13)     /* d, module key space notification */
+#define REDISMODULE_NOTIFY_NEW (1<<14)        /* n, new key notification */
+
+/* Next notification flag, must be updated when adding new flags above!
+This flag should not be used directly by the module.
+ * Use RedisModule_GetKeyspaceNotificationFlagsAll instead. */
+#define _REDISMODULE_NOTIFY_NEXT (1<<15)
+
+#define REDISMODULE_NOTIFY_ALL (REDISMODULE_NOTIFY_GENERIC | REDISMODULE_NOTIFY_STRING | REDISMODULE_NOTIFY_LIST | REDISMODULE_NOTIFY_SET | REDISMODULE_NOTIFY_HASH | REDISMODULE_NOTIFY_ZSET | REDISMODULE_NOTIFY_EXPIRED | REDISMODULE_NOTIFY_EVICTED | REDISMODULE_NOTIFY_STREAM | REDISMODULE_NOTIFY_MODULE)      /* A */
+
+/* A special pointer that we can use between the core and the module to signal
+ * field deletion, and that is impossible to be a valid pointer. */
+#define REDISMODULE_HASH_DELETE ((RedisModuleString*)(long)1)
+
+/* Error messages. */
+#define REDISMODULE_ERRORMSG_WRONGTYPE "WRONGTYPE Operation against a key holding the wrong kind of value"
+
+#define REDISMODULE_POSITIVE_INFINITE (1.0/0.0)
+#define REDISMODULE_NEGATIVE_INFINITE (-1.0/0.0)
+
+/* Cluster API defines. */
+#define REDISMODULE_NODE_ID_LEN 40
+#define REDISMODULE_NODE_MYSELF     (1<<0)
+#define REDISMODULE_NODE_MASTER     (1<<1)
+#define REDISMODULE_NODE_SLAVE      (1<<2)
+#define REDISMODULE_NODE_PFAIL      (1<<3)
+#define REDISMODULE_NODE_FAIL       (1<<4)
+#define REDISMODULE_NODE_NOFAILOVER (1<<5)
+
+#define REDISMODULE_CLUSTER_FLAG_NONE 0
+#define REDISMODULE_CLUSTER_FLAG_NO_FAILOVER (1<<1)
+#define REDISMODULE_CLUSTER_FLAG_NO_REDIRECTION (1<<2)
+
+#define REDISMODULE_NOT_USED(V) ((void) V)
+
+/* Logging level strings */
+#define REDISMODULE_LOGLEVEL_DEBUG "debug"
+#define REDISMODULE_LOGLEVEL_VERBOSE "verbose"
+#define REDISMODULE_LOGLEVEL_NOTICE "notice"
+#define REDISMODULE_LOGLEVEL_WARNING "warning"
+
+/* Bit flags for aux_save_triggers and the aux_load and aux_save callbacks */
+#define REDISMODULE_AUX_BEFORE_RDB (1<<0)
+#define REDISMODULE_AUX_AFTER_RDB (1<<1)
+
+/* RM_Yield flags */
+#define REDISMODULE_YIELD_FLAG_NONE (1<<0)
+#define REDISMODULE_YIELD_FLAG_CLIENTS (1<<1)
+
+/* This type represents a timer handle, and is returned when a timer is
+ * registered and used in order to invalidate a timer. It's just a 64 bit
+ * number, because this is how each timer is represented inside the radix tree
+ * of timers that are going to expire, sorted by expire time. */
+typedef uint64_t RedisModuleTimerID;
+
+/* CommandFilter Flags */
+
+/* Do filter RedisModule_Call() commands initiated by module itself. */
+#define REDISMODULE_CMDFILTER_NOSELF    (1<<0)
+
+/* Declare that the module can handle errors with RedisModule_SetModuleOptions. */
+#define REDISMODULE_OPTIONS_HANDLE_IO_ERRORS    (1<<0)
+
+/* When set, Redis will not call RedisModule_SignalModifiedKey(), implicitly in
+ * RedisModule_CloseKey, and the module needs to do that when manually when keys
+ * are modified from the user's perspective, to invalidate WATCH. */
+#define REDISMODULE_OPTION_NO_IMPLICIT_SIGNAL_MODIFIED (1<<1)
+
+/* Declare that the module can handle diskless async replication with RedisModule_SetModuleOptions. */
+#define REDISMODULE_OPTIONS_HANDLE_REPL_ASYNC_LOAD    (1<<2)
+
+/* Definitions for RedisModule_SetCommandInfo. */
+
+typedef enum {
+    REDISMODULE_ARG_TYPE_STRING,
+    REDISMODULE_ARG_TYPE_INTEGER,
+    REDISMODULE_ARG_TYPE_DOUBLE,
+    REDISMODULE_ARG_TYPE_KEY, /* A string, but represents a keyname */
+    REDISMODULE_ARG_TYPE_PATTERN,
+    REDISMODULE_ARG_TYPE_UNIX_TIME,
+    REDISMODULE_ARG_TYPE_PURE_TOKEN,
+    REDISMODULE_ARG_TYPE_ONEOF, /* Must have sub-arguments */
+    REDISMODULE_ARG_TYPE_BLOCK /* Must have sub-arguments */
+} RedisModuleCommandArgType;
+
+#define REDISMODULE_CMD_ARG_NONE            (0)
+#define REDISMODULE_CMD_ARG_OPTIONAL        (1<<0) /* The argument is optional (like GET in SET command) */
+#define REDISMODULE_CMD_ARG_MULTIPLE        (1<<1) /* The argument may repeat itself (like key in DEL) */
+#define REDISMODULE_CMD_ARG_MULTIPLE_TOKEN  (1<<2) /* The argument may repeat itself, and so does its token (like `GET pattern` in SORT) */
+#define _REDISMODULE_CMD_ARG_NEXT           (1<<3)
+
+typedef enum {
+    REDISMODULE_KSPEC_BS_INVALID = 0, /* Must be zero. An implicitly value of
+                                       * zero is provided when the field is
+                                       * absent in a struct literal. */
+    REDISMODULE_KSPEC_BS_UNKNOWN,
+    REDISMODULE_KSPEC_BS_INDEX,
+    REDISMODULE_KSPEC_BS_KEYWORD
+} RedisModuleKeySpecBeginSearchType;
+
+typedef enum {
+    REDISMODULE_KSPEC_FK_OMITTED = 0, /* Used when the field is absent in a
+                                       * struct literal. Don't use this value
+                                       * explicitly. */
+    REDISMODULE_KSPEC_FK_UNKNOWN,
+    REDISMODULE_KSPEC_FK_RANGE,
+    REDISMODULE_KSPEC_FK_KEYNUM
+} RedisModuleKeySpecFindKeysType;
+
+/* Key-spec flags. For details, see the documentation of
+ * RedisModule_SetCommandInfo and the key-spec flags in server.h. */
+#define REDISMODULE_CMD_KEY_RO (1ULL<<0)
+#define REDISMODULE_CMD_KEY_RW (1ULL<<1)
+#define REDISMODULE_CMD_KEY_OW (1ULL<<2)
+#define REDISMODULE_CMD_KEY_RM (1ULL<<3)
+#define REDISMODULE_CMD_KEY_ACCESS (1ULL<<4)
+#define REDISMODULE_CMD_KEY_UPDATE (1ULL<<5)
+#define REDISMODULE_CMD_KEY_INSERT (1ULL<<6)
+#define REDISMODULE_CMD_KEY_DELETE (1ULL<<7)
+#define REDISMODULE_CMD_KEY_NOT_KEY (1ULL<<8)
+#define REDISMODULE_CMD_KEY_INCOMPLETE (1ULL<<9)
+#define REDISMODULE_CMD_KEY_VARIABLE_FLAGS (1ULL<<10)
+
+/* Channel flags, for details see the documentation of
+ * RedisModule_ChannelAtPosWithFlags. */
+#define REDISMODULE_CMD_CHANNEL_PATTERN (1ULL<<0)
+#define REDISMODULE_CMD_CHANNEL_PUBLISH (1ULL<<1)
+#define REDISMODULE_CMD_CHANNEL_SUBSCRIBE (1ULL<<2)
+#define REDISMODULE_CMD_CHANNEL_UNSUBSCRIBE (1ULL<<3)
+
+typedef struct RedisModuleCommandArg {
+    const char *name;
+    RedisModuleCommandArgType type;
+    int key_spec_index;       /* If type is KEY, this is a zero-based index of
+                               * the key_spec in the command. For other types,
+                               * you may specify -1. */
+    const char *token;        /* If type is PURE_TOKEN, this is the token. */
+    const char *summary;
+    const char *since;
+    int flags;                /* The REDISMODULE_CMD_ARG_* macros. */
+    const char *deprecated_since;
+    struct RedisModuleCommandArg *subargs;
+} RedisModuleCommandArg;
+
+typedef struct {
+    const char *since;
+    const char *changes;
+} RedisModuleCommandHistoryEntry;
+
+typedef struct {
+    const char *notes;
+    uint64_t flags; /* REDISMODULE_CMD_KEY_* macros. */
+    RedisModuleKeySpecBeginSearchType begin_search_type;
+    union {
+        struct {
+            /* The index from which we start the search for keys */
+            int pos;
+        } index;
+        struct {
+            /* The keyword that indicates the beginning of key args */
+            const char *keyword;
+            /* An index in argv from which to start searching.
+             * Can be negative, which means start search from the end, in reverse
+             * (Example: -2 means to start in reverse from the penultimate arg) */
+            int startfrom;
+        } keyword;
+    } bs;
+    RedisModuleKeySpecFindKeysType find_keys_type;
+    union {
+        struct {
+            /* Index of the last key relative to the result of the begin search
+             * step. Can be negative, in which case it's not relative. -1
+             * indicating till the last argument, -2 one before the last and so
+             * on. */
+            int lastkey;
+            /* How many args should we skip after finding a key, in order to
+             * find the next one. */
+            int keystep;
+            /* If lastkey is -1, we use limit to stop the search by a factor. 0
+             * and 1 mean no limit. 2 means 1/2 of the remaining args, 3 means
+             * 1/3, and so on. */
+            int limit;
+        } range;
+        struct {
+            /* Index of the argument containing the number of keys to come
+             * relative to the result of the begin search step */
+            int keynumidx;
+            /* Index of the fist key. (Usually it's just after keynumidx, in
+             * which case it should be set to keynumidx + 1.) */
+            int firstkey;
+            /* How many args should we skip after finding a key, in order to
+             * find the next one, relative to the result of the begin search
+             * step. */
+            int keystep;
+        } keynum;
+    } fk;
+} RedisModuleCommandKeySpec;
+
+typedef struct {
+    int version;
+    size_t sizeof_historyentry;
+    size_t sizeof_keyspec;
+    size_t sizeof_arg;
+} RedisModuleCommandInfoVersion;
+
+static const RedisModuleCommandInfoVersion RedisModule_CurrentCommandInfoVersion = {
+    .version = 1,
+    .sizeof_historyentry = sizeof(RedisModuleCommandHistoryEntry),
+    .sizeof_keyspec = sizeof(RedisModuleCommandKeySpec),
+    .sizeof_arg = sizeof(RedisModuleCommandArg)
+};
+
+#define REDISMODULE_COMMAND_INFO_VERSION (&RedisModule_CurrentCommandInfoVersion)
+
+typedef struct {
+    /* Always set version to REDISMODULE_COMMAND_INFO_VERSION */
+    const RedisModuleCommandInfoVersion *version;
+    /* Version 1 fields (added in Redis 7.0.0) */
+    const char *summary;          /* Summary of the command */
+    const char *complexity;       /* Complexity description */
+    const char *since;            /* Debut module version of the command */
+    RedisModuleCommandHistoryEntry *history; /* History */
+    /* A string of space-separated tips meant for clients/proxies regarding this
+     * command */
+    const char *tips;
+    /* Number of arguments, it is possible to use -N to say >= N */
+    int arity;
+    RedisModuleCommandKeySpec *key_specs;
+    RedisModuleCommandArg *args;
+} RedisModuleCommandInfo;
+
+/* Eventloop definitions. */
+#define REDISMODULE_EVENTLOOP_READABLE 1
+#define REDISMODULE_EVENTLOOP_WRITABLE 2
+typedef void (*RedisModuleEventLoopFunc)(int fd, void *user_data, int mask);
+typedef void (*RedisModuleEventLoopOneShotFunc)(void *user_data);
+
+/* Server events definitions.
+ * Those flags should not be used directly by the module, instead
+ * the module should use RedisModuleEvent_* variables.
+ * Note: This must be synced with moduleEventVersions */
+#define REDISMODULE_EVENT_REPLICATION_ROLE_CHANGED 0
+#define REDISMODULE_EVENT_PERSISTENCE 1
+#define REDISMODULE_EVENT_FLUSHDB 2
+#define REDISMODULE_EVENT_LOADING 3
+#define REDISMODULE_EVENT_CLIENT_CHANGE 4
+#define REDISMODULE_EVENT_SHUTDOWN 5
+#define REDISMODULE_EVENT_REPLICA_CHANGE 6
+#define REDISMODULE_EVENT_MASTER_LINK_CHANGE 7
+#define REDISMODULE_EVENT_CRON_LOOP 8
+#define REDISMODULE_EVENT_MODULE_CHANGE 9
+#define REDISMODULE_EVENT_LOADING_PROGRESS 10
+#define REDISMODULE_EVENT_SWAPDB 11
+#define REDISMODULE_EVENT_REPL_BACKUP 12 /* Deprecated since Redis 7.0, not used anymore. */
+#define REDISMODULE_EVENT_FORK_CHILD 13
+#define REDISMODULE_EVENT_REPL_ASYNC_LOAD 14
+#define REDISMODULE_EVENT_EVENTLOOP 15
+#define REDISMODULE_EVENT_CONFIG 16
+#define _REDISMODULE_EVENT_NEXT 17 /* Next event flag, should be updated if a new event added. */
+
+typedef struct RedisModuleEvent {
+    uint64_t id;        /* REDISMODULE_EVENT_... defines. */
+    uint64_t dataver;   /* Version of the structure we pass as 'data'. */
+} RedisModuleEvent;
+
+struct RedisModuleCtx;
+struct RedisModuleDefragCtx;
+typedef void (*RedisModuleEventCallback)(struct RedisModuleCtx *ctx, RedisModuleEvent eid, uint64_t subevent, void *data);
+
+/* IMPORTANT: When adding a new version of one of below structures that contain
+ * event data (RedisModuleFlushInfoV1 for example) we have to avoid renaming the
+ * old RedisModuleEvent structure.
+ * For example, if we want to add RedisModuleFlushInfoV2, the RedisModuleEvent
+ * structures should be:
+ *      RedisModuleEvent_FlushDB = {
+ *          REDISMODULE_EVENT_FLUSHDB,
+ *          1
+ *      },
+ *      RedisModuleEvent_FlushDBV2 = {
+ *          REDISMODULE_EVENT_FLUSHDB,
+ *          2
+ *      }
+ * and NOT:
+ *      RedisModuleEvent_FlushDBV1 = {
+ *          REDISMODULE_EVENT_FLUSHDB,
+ *          1
+ *      },
+ *      RedisModuleEvent_FlushDB = {
+ *          REDISMODULE_EVENT_FLUSHDB,
+ *          2
+ *      }
+ * The reason for that is forward-compatibility: We want that module that
+ * compiled with a new redismodule.h to be able to work with a old server,
+ * unless the author explicitly decided to use the newer event type.
+ */
+static const RedisModuleEvent
+    RedisModuleEvent_ReplicationRoleChanged = {
+        REDISMODULE_EVENT_REPLICATION_ROLE_CHANGED,
+        1
+    },
+    RedisModuleEvent_Persistence = {
+        REDISMODULE_EVENT_PERSISTENCE,
+        1
+    },
+    RedisModuleEvent_FlushDB = {
+        REDISMODULE_EVENT_FLUSHDB,
+        1
+    },
+    RedisModuleEvent_Loading = {
+        REDISMODULE_EVENT_LOADING,
+        1
+    },
+    RedisModuleEvent_ClientChange = {
+        REDISMODULE_EVENT_CLIENT_CHANGE,
+        1
+    },
+    RedisModuleEvent_Shutdown = {
+        REDISMODULE_EVENT_SHUTDOWN,
+        1
+    },
+    RedisModuleEvent_ReplicaChange = {
+        REDISMODULE_EVENT_REPLICA_CHANGE,
+        1
+    },
+    RedisModuleEvent_CronLoop = {
+        REDISMODULE_EVENT_CRON_LOOP,
+        1
+    },
+    RedisModuleEvent_MasterLinkChange = {
+        REDISMODULE_EVENT_MASTER_LINK_CHANGE,
+        1
+    },
+    RedisModuleEvent_ModuleChange = {
+        REDISMODULE_EVENT_MODULE_CHANGE,
+        1
+    },
+    RedisModuleEvent_LoadingProgress = {
+        REDISMODULE_EVENT_LOADING_PROGRESS,
+        1
+    },
+    RedisModuleEvent_SwapDB = {
+        REDISMODULE_EVENT_SWAPDB,
+        1
+    },
+    /* Deprecated since Redis 7.0, not used anymore. */
+    __attribute__ ((deprecated))
+    RedisModuleEvent_ReplBackup = {
+        REDISMODULE_EVENT_REPL_BACKUP, 
+        1
+    },
+    RedisModuleEvent_ReplAsyncLoad = {
+        REDISMODULE_EVENT_REPL_ASYNC_LOAD,
+        1
+    },
+    RedisModuleEvent_ForkChild = {
+        REDISMODULE_EVENT_FORK_CHILD,
+        1
+    },
+    RedisModuleEvent_EventLoop = {
+        REDISMODULE_EVENT_EVENTLOOP,
+        1
+    },
+    RedisModuleEvent_Config = {
+        REDISMODULE_EVENT_CONFIG,
+        1
+    };
+
+/* Those are values that are used for the 'subevent' callback argument. */
+#define REDISMODULE_SUBEVENT_PERSISTENCE_RDB_START 0
+#define REDISMODULE_SUBEVENT_PERSISTENCE_AOF_START 1
+#define REDISMODULE_SUBEVENT_PERSISTENCE_SYNC_RDB_START 2
+#define REDISMODULE_SUBEVENT_PERSISTENCE_ENDED 3
+#define REDISMODULE_SUBEVENT_PERSISTENCE_FAILED 4
+#define REDISMODULE_SUBEVENT_PERSISTENCE_SYNC_AOF_START 5
+#define _REDISMODULE_SUBEVENT_PERSISTENCE_NEXT 6
+
+#define REDISMODULE_SUBEVENT_LOADING_RDB_START 0
+#define REDISMODULE_SUBEVENT_LOADING_AOF_START 1
+#define REDISMODULE_SUBEVENT_LOADING_REPL_START 2
+#define REDISMODULE_SUBEVENT_LOADING_ENDED 3
+#define REDISMODULE_SUBEVENT_LOADING_FAILED 4
+#define _REDISMODULE_SUBEVENT_LOADING_NEXT 5
+
+#define REDISMODULE_SUBEVENT_CLIENT_CHANGE_CONNECTED 0
+#define REDISMODULE_SUBEVENT_CLIENT_CHANGE_DISCONNECTED 1
+#define _REDISMODULE_SUBEVENT_CLIENT_CHANGE_NEXT 2
+
+#define REDISMODULE_SUBEVENT_MASTER_LINK_UP 0
+#define REDISMODULE_SUBEVENT_MASTER_LINK_DOWN 1
+#define _REDISMODULE_SUBEVENT_MASTER_NEXT 2
+
+#define REDISMODULE_SUBEVENT_REPLICA_CHANGE_ONLINE 0
+#define REDISMODULE_SUBEVENT_REPLICA_CHANGE_OFFLINE 1
+#define _REDISMODULE_SUBEVENT_REPLICA_CHANGE_NEXT 2
+
+#define REDISMODULE_EVENT_REPLROLECHANGED_NOW_MASTER 0
+#define REDISMODULE_EVENT_REPLROLECHANGED_NOW_REPLICA 1
+#define _REDISMODULE_EVENT_REPLROLECHANGED_NEXT 2
+
+#define REDISMODULE_SUBEVENT_FLUSHDB_START 0
+#define REDISMODULE_SUBEVENT_FLUSHDB_END 1
+#define _REDISMODULE_SUBEVENT_FLUSHDB_NEXT 2
+
+#define REDISMODULE_SUBEVENT_MODULE_LOADED 0
+#define REDISMODULE_SUBEVENT_MODULE_UNLOADED 1
+#define _REDISMODULE_SUBEVENT_MODULE_NEXT 2
+
+#define REDISMODULE_SUBEVENT_CONFIG_CHANGE 0
+#define _REDISMODULE_SUBEVENT_CONFIG_NEXT 1
+
+#define REDISMODULE_SUBEVENT_LOADING_PROGRESS_RDB 0
+#define REDISMODULE_SUBEVENT_LOADING_PROGRESS_AOF 1
+#define _REDISMODULE_SUBEVENT_LOADING_PROGRESS_NEXT 2
+
+/* Replication Backup events are deprecated since Redis 7.0 and are never fired. */
+#define REDISMODULE_SUBEVENT_REPL_BACKUP_CREATE 0
+#define REDISMODULE_SUBEVENT_REPL_BACKUP_RESTORE 1
+#define REDISMODULE_SUBEVENT_REPL_BACKUP_DISCARD 2
+#define _REDISMODULE_SUBEVENT_REPL_BACKUP_NEXT 3
+
+#define REDISMODULE_SUBEVENT_REPL_ASYNC_LOAD_STARTED 0
+#define REDISMODULE_SUBEVENT_REPL_ASYNC_LOAD_ABORTED 1
+#define REDISMODULE_SUBEVENT_REPL_ASYNC_LOAD_COMPLETED 2
+#define _REDISMODULE_SUBEVENT_REPL_ASYNC_LOAD_NEXT 3
+
+#define REDISMODULE_SUBEVENT_FORK_CHILD_BORN 0
+#define REDISMODULE_SUBEVENT_FORK_CHILD_DIED 1
+#define _REDISMODULE_SUBEVENT_FORK_CHILD_NEXT 2
+
+#define REDISMODULE_SUBEVENT_EVENTLOOP_BEFORE_SLEEP 0
+#define REDISMODULE_SUBEVENT_EVENTLOOP_AFTER_SLEEP 1
+#define _REDISMODULE_SUBEVENT_EVENTLOOP_NEXT 2
+
+#define _REDISMODULE_SUBEVENT_SHUTDOWN_NEXT 0
+#define _REDISMODULE_SUBEVENT_CRON_LOOP_NEXT 0
+#define _REDISMODULE_SUBEVENT_SWAPDB_NEXT 0
+
+/* RedisModuleClientInfo flags. */
+#define REDISMODULE_CLIENTINFO_FLAG_SSL (1<<0)
+#define REDISMODULE_CLIENTINFO_FLAG_PUBSUB (1<<1)
+#define REDISMODULE_CLIENTINFO_FLAG_BLOCKED (1<<2)
+#define REDISMODULE_CLIENTINFO_FLAG_TRACKING (1<<3)
+#define REDISMODULE_CLIENTINFO_FLAG_UNIXSOCKET (1<<4)
+#define REDISMODULE_CLIENTINFO_FLAG_MULTI (1<<5)
+
+/* Here we take all the structures that the module pass to the core
+ * and the other way around. Notably the list here contains the structures
+ * used by the hooks API RedisModule_RegisterToServerEvent().
+ *
+ * The structures always start with a 'version' field. This is useful
+ * when we want to pass a reference to the structure to the core APIs,
+ * for the APIs to fill the structure. In that case, the structure 'version'
+ * field is initialized before passing it to the core, so that the core is
+ * able to cast the pointer to the appropriate structure version. In this
+ * way we obtain ABI compatibility.
+ *
+ * Here we'll list all the structure versions in case they evolve over time,
+ * however using a define, we'll make sure to use the last version as the
+ * public name for the module to use. */
+
+#define REDISMODULE_CLIENTINFO_VERSION 1
+typedef struct RedisModuleClientInfo {
+    uint64_t version;       /* Version of this structure for ABI compat. */
+    uint64_t flags;         /* REDISMODULE_CLIENTINFO_FLAG_* */
+    uint64_t id;            /* Client ID. */
+    char addr[46];          /* IPv4 or IPv6 address. */
+    uint16_t port;          /* TCP port. */
+    uint16_t db;            /* Selected DB. */
+} RedisModuleClientInfoV1;
+
+#define RedisModuleClientInfo RedisModuleClientInfoV1
+
+#define REDISMODULE_CLIENTINFO_INITIALIZER_V1 { .version = 1 }
+
+#define REDISMODULE_REPLICATIONINFO_VERSION 1
+typedef struct RedisModuleReplicationInfo {
+    uint64_t version;       /* Not used since this structure is never passed
+                               from the module to the core right now. Here
+                               for future compatibility. */
+    int master;             /* true if master, false if replica */
+    char *masterhost;       /* master instance hostname for NOW_REPLICA */
+    int masterport;         /* master instance port for NOW_REPLICA */
+    char *replid1;          /* Main replication ID */
+    char *replid2;          /* Secondary replication ID */
+    uint64_t repl1_offset;  /* Main replication offset */
+    uint64_t repl2_offset;  /* Offset of replid2 validity */
+} RedisModuleReplicationInfoV1;
+
+#define RedisModuleReplicationInfo RedisModuleReplicationInfoV1
+
+#define REDISMODULE_FLUSHINFO_VERSION 1
+typedef struct RedisModuleFlushInfo {
+    uint64_t version;       /* Not used since this structure is never passed
+                               from the module to the core right now. Here
+                               for future compatibility. */
+    int32_t sync;           /* Synchronous or threaded flush?. */
+    int32_t dbnum;          /* Flushed database number, -1 for ALL. */
+} RedisModuleFlushInfoV1;
+
+#define RedisModuleFlushInfo RedisModuleFlushInfoV1
+
+#define REDISMODULE_MODULE_CHANGE_VERSION 1
+typedef struct RedisModuleModuleChange {
+    uint64_t version;       /* Not used since this structure is never passed
+                               from the module to the core right now. Here
+                               for future compatibility. */
+    const char* module_name;/* Name of module loaded or unloaded. */
+    int32_t module_version; /* Module version. */
+} RedisModuleModuleChangeV1;
+
+#define RedisModuleModuleChange RedisModuleModuleChangeV1
+
+#define REDISMODULE_CONFIGCHANGE_VERSION 1
+typedef struct RedisModuleConfigChange {
+    uint64_t version;       /* Not used since this structure is never passed
+                               from the module to the core right now. Here
+                               for future compatibility. */
+    uint32_t num_changes;   /* how many redis config options were changed */
+    const char **config_names; /* the config names that were changed */
+} RedisModuleConfigChangeV1;
+
+#define RedisModuleConfigChange RedisModuleConfigChangeV1
+
+#define REDISMODULE_CRON_LOOP_VERSION 1
+typedef struct RedisModuleCronLoopInfo {
+    uint64_t version;       /* Not used since this structure is never passed
+                               from the module to the core right now. Here
+                               for future compatibility. */
+    int32_t hz;             /* Approximate number of events per second. */
+} RedisModuleCronLoopV1;
+
+#define RedisModuleCronLoop RedisModuleCronLoopV1
+
+#define REDISMODULE_LOADING_PROGRESS_VERSION 1
+typedef struct RedisModuleLoadingProgressInfo {
+    uint64_t version;       /* Not used since this structure is never passed
+                               from the module to the core right now. Here
+                               for future compatibility. */
+    int32_t hz;             /* Approximate number of events per second. */
+    int32_t progress;       /* Approximate progress between 0 and 1024, or -1
+                             * if unknown. */
+} RedisModuleLoadingProgressV1;
+
+#define RedisModuleLoadingProgress RedisModuleLoadingProgressV1
+
+#define REDISMODULE_SWAPDBINFO_VERSION 1
+typedef struct RedisModuleSwapDbInfo {
+    uint64_t version;       /* Not used since this structure is never passed
+                               from the module to the core right now. Here
+                               for future compatibility. */
+    int32_t dbnum_first;    /* Swap Db first dbnum */
+    int32_t dbnum_second;   /* Swap Db second dbnum */
+} RedisModuleSwapDbInfoV1;
+
+#define RedisModuleSwapDbInfo RedisModuleSwapDbInfoV1
+
+typedef enum {
+    REDISMODULE_ACL_LOG_AUTH = 0, /* Authentication failure */
+    REDISMODULE_ACL_LOG_CMD, /* Command authorization failure */
+    REDISMODULE_ACL_LOG_KEY, /* Key authorization failure */
+    REDISMODULE_ACL_LOG_CHANNEL /* Channel authorization failure */
+} RedisModuleACLLogEntryReason;
+
+/* ------------------------- End of common defines ------------------------ */
+
+#ifndef REDISMODULE_CORE
+
+typedef long long mstime_t;
+
+/* Macro definitions specific to individual compilers */
+#ifndef REDISMODULE_ATTR_UNUSED
+#    ifdef __GNUC__
+#        define REDISMODULE_ATTR_UNUSED __attribute__((unused))
+#    else
+#        define REDISMODULE_ATTR_UNUSED
+#    endif
+#endif
+
+#ifndef REDISMODULE_ATTR_PRINTF
+#    ifdef __GNUC__
+#        define REDISMODULE_ATTR_PRINTF(idx,cnt) __attribute__((format(printf,idx,cnt)))
+#    else
+#        define REDISMODULE_ATTR_PRINTF(idx,cnt)
+#    endif
+#endif
+
+#ifndef REDISMODULE_ATTR_COMMON
+#    if defined(__GNUC__) && !(defined(__clang__) && defined(__cplusplus))
+#        define REDISMODULE_ATTR_COMMON __attribute__((__common__))
+#    else
+#        define REDISMODULE_ATTR_COMMON
+#    endif
+#endif
+
+/* Incomplete structures for compiler checks but opaque access. */
+typedef struct RedisModuleCtx RedisModuleCtx;
+typedef struct RedisModuleCommand RedisModuleCommand;
+typedef struct RedisModuleKey RedisModuleKey;
+typedef struct RedisModuleString RedisModuleString;
+typedef struct RedisModuleCallReply RedisModuleCallReply;
+typedef struct RedisModuleIO RedisModuleIO;
+typedef struct RedisModuleType RedisModuleType;
+typedef struct RedisModuleDigest RedisModuleDigest;
+typedef struct RedisModuleBlockedClient RedisModuleBlockedClient;
+typedef struct RedisModuleClusterInfo RedisModuleClusterInfo;
+typedef struct RedisModuleDict RedisModuleDict;
+typedef struct RedisModuleDictIter RedisModuleDictIter;
+typedef struct RedisModuleCommandFilterCtx RedisModuleCommandFilterCtx;
+typedef struct RedisModuleCommandFilter RedisModuleCommandFilter;
+typedef struct RedisModuleInfoCtx RedisModuleInfoCtx;
+typedef struct RedisModuleServerInfoData RedisModuleServerInfoData;
+typedef struct RedisModuleScanCursor RedisModuleScanCursor;
+typedef struct RedisModuleDefragCtx RedisModuleDefragCtx;
+typedef struct RedisModuleUser RedisModuleUser;
+typedef struct RedisModuleKeyOptCtx RedisModuleKeyOptCtx;
+
+typedef int (*RedisModuleCmdFunc)(RedisModuleCtx *ctx, RedisModuleString **argv, int argc);
+typedef void (*RedisModuleDisconnectFunc)(RedisModuleCtx *ctx, RedisModuleBlockedClient *bc);
+typedef int (*RedisModuleNotificationFunc)(RedisModuleCtx *ctx, int type, const char *event, RedisModuleString *key);
+typedef void *(*RedisModuleTypeLoadFunc)(RedisModuleIO *rdb, int encver);
+typedef void (*RedisModuleTypeSaveFunc)(RedisModuleIO *rdb, void *value);
+typedef int (*RedisModuleTypeAuxLoadFunc)(RedisModuleIO *rdb, int encver, int when);
+typedef void (*RedisModuleTypeAuxSaveFunc)(RedisModuleIO *rdb, int when);
+typedef void (*RedisModuleTypeRewriteFunc)(RedisModuleIO *aof, RedisModuleString *key, void *value);
+typedef size_t (*RedisModuleTypeMemUsageFunc)(const void *value);
+typedef size_t (*RedisModuleTypeMemUsageFunc2)(RedisModuleKeyOptCtx *ctx, const void *value, size_t sample_size);
+typedef void (*RedisModuleTypeDigestFunc)(RedisModuleDigest *digest, void *value);
+typedef void (*RedisModuleTypeFreeFunc)(void *value);
+typedef size_t (*RedisModuleTypeFreeEffortFunc)(RedisModuleString *key, const void *value);
+typedef size_t (*RedisModuleTypeFreeEffortFunc2)(RedisModuleKeyOptCtx *ctx, const void *value);
+typedef void (*RedisModuleTypeUnlinkFunc)(RedisModuleString *key, const void *value);
+typedef void (*RedisModuleTypeUnlinkFunc2)(RedisModuleKeyOptCtx *ctx, const void *value);
+typedef void *(*RedisModuleTypeCopyFunc)(RedisModuleString *fromkey, RedisModuleString *tokey, const void *value);
+typedef void *(*RedisModuleTypeCopyFunc2)(RedisModuleKeyOptCtx *ctx, const void *value);
+typedef int (*RedisModuleTypeDefragFunc)(RedisModuleDefragCtx *ctx, RedisModuleString *key, void **value);
+typedef void (*RedisModuleClusterMessageReceiver)(RedisModuleCtx *ctx, const char *sender_id, uint8_t type, const unsigned char *payload, uint32_t len);
+typedef void (*RedisModuleTimerProc)(RedisModuleCtx *ctx, void *data);
+typedef void (*RedisModuleCommandFilterFunc) (RedisModuleCommandFilterCtx *filter);
+typedef void (*RedisModuleForkDoneHandler) (int exitcode, int bysignal, void *user_data);
+typedef void (*RedisModuleInfoFunc)(RedisModuleInfoCtx *ctx, int for_crash_report);
+typedef void (*RedisModuleScanCB)(RedisModuleCtx *ctx, RedisModuleString *keyname, RedisModuleKey *key, void *privdata);
+typedef void (*RedisModuleScanKeyCB)(RedisModuleKey *key, RedisModuleString *field, RedisModuleString *value, void *privdata);
+typedef void (*RedisModuleUserChangedFunc) (uint64_t client_id, void *privdata);
+typedef int (*RedisModuleDefragFunc)(RedisModuleDefragCtx *ctx);
+typedef RedisModuleString * (*RedisModuleConfigGetStringFunc)(const char *name, void *privdata);
+typedef long long (*RedisModuleConfigGetNumericFunc)(const char *name, void *privdata);
+typedef int (*RedisModuleConfigGetBoolFunc)(const char *name, void *privdata);
+typedef int (*RedisModuleConfigGetEnumFunc)(const char *name, void *privdata);
+typedef int (*RedisModuleConfigSetStringFunc)(const char *name, RedisModuleString *val, void *privdata, RedisModuleString **err);
+typedef int (*RedisModuleConfigSetNumericFunc)(const char *name, long long val, void *privdata, RedisModuleString **err);
+typedef int (*RedisModuleConfigSetBoolFunc)(const char *name, int val, void *privdata, RedisModuleString **err);
+typedef int (*RedisModuleConfigSetEnumFunc)(const char *name, int val, void *privdata, RedisModuleString **err);
+typedef int (*RedisModuleConfigApplyFunc)(RedisModuleCtx *ctx, void *privdata, RedisModuleString **err);
+
+typedef struct RedisModuleTypeMethods {
+    uint64_t version;
+    RedisModuleTypeLoadFunc rdb_load;
+    RedisModuleTypeSaveFunc rdb_save;
+    RedisModuleTypeRewriteFunc aof_rewrite;
+    RedisModuleTypeMemUsageFunc mem_usage;
+    RedisModuleTypeDigestFunc digest;
+    RedisModuleTypeFreeFunc free;
+    RedisModuleTypeAuxLoadFunc aux_load;
+    RedisModuleTypeAuxSaveFunc aux_save;
+    int aux_save_triggers;
+    RedisModuleTypeFreeEffortFunc free_effort;
+    RedisModuleTypeUnlinkFunc unlink;
+    RedisModuleTypeCopyFunc copy;
+    RedisModuleTypeDefragFunc defrag;
+    RedisModuleTypeMemUsageFunc2 mem_usage2;
+    RedisModuleTypeFreeEffortFunc2 free_effort2;
+    RedisModuleTypeUnlinkFunc2 unlink2;
+    RedisModuleTypeCopyFunc2 copy2;
+} RedisModuleTypeMethods;
+
+#define REDISMODULE_GET_API(name) \
+    RedisModule_GetApi("RedisModule_" #name, ((void **)&RedisModule_ ## name))
+
+/* Default API declaration prefix (not 'extern' for backwards compatibility) */
+#ifndef REDISMODULE_MAIN
+#define REDISMODULE_API extern
+#endif
+
+#ifndef REDISMODULE_API
+#define REDISMODULE_API
+#endif
+
+/* Default API declaration suffix (compiler attributes) */
+#ifndef REDISMODULE_ATTR
+#define REDISMODULE_ATTR REDISMODULE_ATTR_COMMON
+#endif
+
+REDISMODULE_API void * (*RedisModule_Alloc)(size_t bytes) REDISMODULE_ATTR;
+REDISMODULE_API void * (*RedisModule_TryAlloc)(size_t bytes) REDISMODULE_ATTR;
+REDISMODULE_API void * (*RedisModule_Realloc)(void *ptr, size_t bytes) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_Free)(void *ptr) REDISMODULE_ATTR;
+REDISMODULE_API void * (*RedisModule_Calloc)(size_t nmemb, size_t size) REDISMODULE_ATTR;
+REDISMODULE_API char * (*RedisModule_Strdup)(const char *str) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_GetApi)(const char *, void *) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_CreateCommand)(RedisModuleCtx *ctx, const char *name, RedisModuleCmdFunc cmdfunc, const char *strflags, int firstkey, int lastkey, int keystep) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleCommand *(*RedisModule_GetCommand)(RedisModuleCtx *ctx, const char *name) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_CreateSubcommand)(RedisModuleCommand *parent, const char *name, RedisModuleCmdFunc cmdfunc, const char *strflags, int firstkey, int lastkey, int keystep) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_SetCommandInfo)(RedisModuleCommand *command, const RedisModuleCommandInfo *info) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_SetModuleAttribs)(RedisModuleCtx *ctx, const char *name, int ver, int apiver) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_IsModuleNameBusy)(const char *name) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_WrongArity)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ReplyWithLongLong)(RedisModuleCtx *ctx, long long ll) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_GetSelectedDb)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_SelectDb)(RedisModuleCtx *ctx, int newid) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_KeyExists)(RedisModuleCtx *ctx, RedisModuleString *keyname) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleKey * (*RedisModule_OpenKey)(RedisModuleCtx *ctx, RedisModuleString *keyname, int mode) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_CloseKey)(RedisModuleKey *kp) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_KeyType)(RedisModuleKey *kp) REDISMODULE_ATTR;
+REDISMODULE_API size_t (*RedisModule_ValueLength)(RedisModuleKey *kp) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ListPush)(RedisModuleKey *kp, int where, RedisModuleString *ele) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_ListPop)(RedisModuleKey *key, int where) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_ListGet)(RedisModuleKey *key, long index) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ListSet)(RedisModuleKey *key, long index, RedisModuleString *value) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ListInsert)(RedisModuleKey *key, long index, RedisModuleString *value) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ListDelete)(RedisModuleKey *key, long index) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleCallReply * (*RedisModule_Call)(RedisModuleCtx *ctx, const char *cmdname, const char *fmt, ...) REDISMODULE_ATTR;
+REDISMODULE_API const char * (*RedisModule_CallReplyProto)(RedisModuleCallReply *reply, size_t *len) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_FreeCallReply)(RedisModuleCallReply *reply) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_CallReplyType)(RedisModuleCallReply *reply) REDISMODULE_ATTR;
+REDISMODULE_API long long (*RedisModule_CallReplyInteger)(RedisModuleCallReply *reply) REDISMODULE_ATTR;
+REDISMODULE_API double (*RedisModule_CallReplyDouble)(RedisModuleCallReply *reply) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_CallReplyBool)(RedisModuleCallReply *reply) REDISMODULE_ATTR;
+REDISMODULE_API const char* (*RedisModule_CallReplyBigNumber)(RedisModuleCallReply *reply, size_t *len) REDISMODULE_ATTR;
+REDISMODULE_API const char* (*RedisModule_CallReplyVerbatim)(RedisModuleCallReply *reply, size_t *len, const char **format) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleCallReply * (*RedisModule_CallReplySetElement)(RedisModuleCallReply *reply, size_t idx) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_CallReplyMapElement)(RedisModuleCallReply *reply, size_t idx, RedisModuleCallReply **key, RedisModuleCallReply **val) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_CallReplyAttributeElement)(RedisModuleCallReply *reply, size_t idx, RedisModuleCallReply **key, RedisModuleCallReply **val) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleCallReply * (*RedisModule_CallReplyAttribute)(RedisModuleCallReply *reply) REDISMODULE_ATTR;
+REDISMODULE_API size_t (*RedisModule_CallReplyLength)(RedisModuleCallReply *reply) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleCallReply * (*RedisModule_CallReplyArrayElement)(RedisModuleCallReply *reply, size_t idx) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_CreateString)(RedisModuleCtx *ctx, const char *ptr, size_t len) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_CreateStringFromLongLong)(RedisModuleCtx *ctx, long long ll) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_CreateStringFromULongLong)(RedisModuleCtx *ctx, unsigned long long ull) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_CreateStringFromDouble)(RedisModuleCtx *ctx, double d) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_CreateStringFromLongDouble)(RedisModuleCtx *ctx, long double ld, int humanfriendly) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_CreateStringFromString)(RedisModuleCtx *ctx, const RedisModuleString *str) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_CreateStringFromStreamID)(RedisModuleCtx *ctx, const RedisModuleStreamID *id) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_CreateStringPrintf)(RedisModuleCtx *ctx, const char *fmt, ...) REDISMODULE_ATTR_PRINTF(2,3) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_FreeString)(RedisModuleCtx *ctx, RedisModuleString *str) REDISMODULE_ATTR;
+REDISMODULE_API const char * (*RedisModule_StringPtrLen)(const RedisModuleString *str, size_t *len) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ReplyWithError)(RedisModuleCtx *ctx, const char *err) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ReplyWithSimpleString)(RedisModuleCtx *ctx, const char *msg) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ReplyWithArray)(RedisModuleCtx *ctx, long len) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ReplyWithMap)(RedisModuleCtx *ctx, long len) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ReplyWithSet)(RedisModuleCtx *ctx, long len) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ReplyWithAttribute)(RedisModuleCtx *ctx, long len) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ReplyWithNullArray)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ReplyWithEmptyArray)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_ReplySetArrayLength)(RedisModuleCtx *ctx, long len) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_ReplySetMapLength)(RedisModuleCtx *ctx, long len) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_ReplySetSetLength)(RedisModuleCtx *ctx, long len) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_ReplySetAttributeLength)(RedisModuleCtx *ctx, long len) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_ReplySetPushLength)(RedisModuleCtx *ctx, long len) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ReplyWithStringBuffer)(RedisModuleCtx *ctx, const char *buf, size_t len) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ReplyWithCString)(RedisModuleCtx *ctx, const char *buf) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ReplyWithString)(RedisModuleCtx *ctx, RedisModuleString *str) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ReplyWithEmptyString)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ReplyWithVerbatimString)(RedisModuleCtx *ctx, const char *buf, size_t len) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ReplyWithVerbatimStringType)(RedisModuleCtx *ctx, const char *buf, size_t len, const char *ext) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ReplyWithNull)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ReplyWithBool)(RedisModuleCtx *ctx, int b) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ReplyWithLongDouble)(RedisModuleCtx *ctx, long double d) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ReplyWithDouble)(RedisModuleCtx *ctx, double d) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ReplyWithBigNumber)(RedisModuleCtx *ctx, const char *bignum, size_t len) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ReplyWithCallReply)(RedisModuleCtx *ctx, RedisModuleCallReply *reply) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_StringToLongLong)(const RedisModuleString *str, long long *ll) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_StringToULongLong)(const RedisModuleString *str, unsigned long long *ull) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_StringToDouble)(const RedisModuleString *str, double *d) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_StringToLongDouble)(const RedisModuleString *str, long double *d) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_StringToStreamID)(const RedisModuleString *str, RedisModuleStreamID *id) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_AutoMemory)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_Replicate)(RedisModuleCtx *ctx, const char *cmdname, const char *fmt, ...) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ReplicateVerbatim)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API const char * (*RedisModule_CallReplyStringPtr)(RedisModuleCallReply *reply, size_t *len) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_CreateStringFromCallReply)(RedisModuleCallReply *reply) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_DeleteKey)(RedisModuleKey *key) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_UnlinkKey)(RedisModuleKey *key) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_StringSet)(RedisModuleKey *key, RedisModuleString *str) REDISMODULE_ATTR;
+REDISMODULE_API char * (*RedisModule_StringDMA)(RedisModuleKey *key, size_t *len, int mode) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_StringTruncate)(RedisModuleKey *key, size_t newlen) REDISMODULE_ATTR;
+REDISMODULE_API mstime_t (*RedisModule_GetExpire)(RedisModuleKey *key) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_SetExpire)(RedisModuleKey *key, mstime_t expire) REDISMODULE_ATTR;
+REDISMODULE_API mstime_t (*RedisModule_GetAbsExpire)(RedisModuleKey *key) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_SetAbsExpire)(RedisModuleKey *key, mstime_t expire) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_ResetDataset)(int restart_aof, int async) REDISMODULE_ATTR;
+REDISMODULE_API unsigned long long (*RedisModule_DbSize)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_RandomKey)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ZsetAdd)(RedisModuleKey *key, double score, RedisModuleString *ele, int *flagsptr) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ZsetIncrby)(RedisModuleKey *key, double score, RedisModuleString *ele, int *flagsptr, double *newscore) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ZsetScore)(RedisModuleKey *key, RedisModuleString *ele, double *score) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ZsetRem)(RedisModuleKey *key, RedisModuleString *ele, int *deleted) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_ZsetRangeStop)(RedisModuleKey *key) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ZsetFirstInScoreRange)(RedisModuleKey *key, double min, double max, int minex, int maxex) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ZsetLastInScoreRange)(RedisModuleKey *key, double min, double max, int minex, int maxex) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ZsetFirstInLexRange)(RedisModuleKey *key, RedisModuleString *min, RedisModuleString *max) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ZsetLastInLexRange)(RedisModuleKey *key, RedisModuleString *min, RedisModuleString *max) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_ZsetRangeCurrentElement)(RedisModuleKey *key, double *score) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ZsetRangeNext)(RedisModuleKey *key) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ZsetRangePrev)(RedisModuleKey *key) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ZsetRangeEndReached)(RedisModuleKey *key) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_HashSet)(RedisModuleKey *key, int flags, ...) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_HashGet)(RedisModuleKey *key, int flags, ...) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_StreamAdd)(RedisModuleKey *key, int flags, RedisModuleStreamID *id, RedisModuleString **argv, int64_t numfields) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_StreamDelete)(RedisModuleKey *key, RedisModuleStreamID *id) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_StreamIteratorStart)(RedisModuleKey *key, int flags, RedisModuleStreamID *startid, RedisModuleStreamID *endid) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_StreamIteratorStop)(RedisModuleKey *key) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_StreamIteratorNextID)(RedisModuleKey *key, RedisModuleStreamID *id, long *numfields) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_StreamIteratorNextField)(RedisModuleKey *key, RedisModuleString **field_ptr, RedisModuleString **value_ptr) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_StreamIteratorDelete)(RedisModuleKey *key) REDISMODULE_ATTR;
+REDISMODULE_API long long (*RedisModule_StreamTrimByLength)(RedisModuleKey *key, int flags, long long length) REDISMODULE_ATTR;
+REDISMODULE_API long long (*RedisModule_StreamTrimByID)(RedisModuleKey *key, int flags, RedisModuleStreamID *id) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_IsKeysPositionRequest)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_KeyAtPos)(RedisModuleCtx *ctx, int pos) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_KeyAtPosWithFlags)(RedisModuleCtx *ctx, int pos, int flags) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_IsChannelsPositionRequest)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_ChannelAtPosWithFlags)(RedisModuleCtx *ctx, int pos, int flags) REDISMODULE_ATTR;
+REDISMODULE_API unsigned long long (*RedisModule_GetClientId)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_GetClientUserNameById)(RedisModuleCtx *ctx, uint64_t id) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_GetClientInfoById)(void *ci, uint64_t id) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_GetClientNameById)(RedisModuleCtx *ctx, uint64_t id) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_SetClientNameById)(uint64_t id, RedisModuleString *name) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_PublishMessage)(RedisModuleCtx *ctx, RedisModuleString *channel, RedisModuleString *message) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_PublishMessageShard)(RedisModuleCtx *ctx, RedisModuleString *channel, RedisModuleString *message) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_GetContextFlags)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_AvoidReplicaTraffic)() REDISMODULE_ATTR;
+REDISMODULE_API void * (*RedisModule_PoolAlloc)(RedisModuleCtx *ctx, size_t bytes) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleType * (*RedisModule_CreateDataType)(RedisModuleCtx *ctx, const char *name, int encver, RedisModuleTypeMethods *typemethods) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ModuleTypeSetValue)(RedisModuleKey *key, RedisModuleType *mt, void *value) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ModuleTypeReplaceValue)(RedisModuleKey *key, RedisModuleType *mt, void *new_value, void **old_value) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleType * (*RedisModule_ModuleTypeGetType)(RedisModuleKey *key) REDISMODULE_ATTR;
+REDISMODULE_API void * (*RedisModule_ModuleTypeGetValue)(RedisModuleKey *key) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_IsIOError)(RedisModuleIO *io) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_SetModuleOptions)(RedisModuleCtx *ctx, int options) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_SignalModifiedKey)(RedisModuleCtx *ctx, RedisModuleString *keyname) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_SaveUnsigned)(RedisModuleIO *io, uint64_t value) REDISMODULE_ATTR;
+REDISMODULE_API uint64_t (*RedisModule_LoadUnsigned)(RedisModuleIO *io) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_SaveSigned)(RedisModuleIO *io, int64_t value) REDISMODULE_ATTR;
+REDISMODULE_API int64_t (*RedisModule_LoadSigned)(RedisModuleIO *io) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_EmitAOF)(RedisModuleIO *io, const char *cmdname, const char *fmt, ...) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_SaveString)(RedisModuleIO *io, RedisModuleString *s) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_SaveStringBuffer)(RedisModuleIO *io, const char *str, size_t len) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_LoadString)(RedisModuleIO *io) REDISMODULE_ATTR;
+REDISMODULE_API char * (*RedisModule_LoadStringBuffer)(RedisModuleIO *io, size_t *lenptr) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_SaveDouble)(RedisModuleIO *io, double value) REDISMODULE_ATTR;
+REDISMODULE_API double (*RedisModule_LoadDouble)(RedisModuleIO *io) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_SaveFloat)(RedisModuleIO *io, float value) REDISMODULE_ATTR;
+REDISMODULE_API float (*RedisModule_LoadFloat)(RedisModuleIO *io) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_SaveLongDouble)(RedisModuleIO *io, long double value) REDISMODULE_ATTR;
+REDISMODULE_API long double (*RedisModule_LoadLongDouble)(RedisModuleIO *io) REDISMODULE_ATTR;
+REDISMODULE_API void * (*RedisModule_LoadDataTypeFromString)(const RedisModuleString *str, const RedisModuleType *mt) REDISMODULE_ATTR;
+REDISMODULE_API void * (*RedisModule_LoadDataTypeFromStringEncver)(const RedisModuleString *str, const RedisModuleType *mt, int encver) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_SaveDataTypeToString)(RedisModuleCtx *ctx, void *data, const RedisModuleType *mt) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_Log)(RedisModuleCtx *ctx, const char *level, const char *fmt, ...) REDISMODULE_ATTR REDISMODULE_ATTR_PRINTF(3,4);
+REDISMODULE_API void (*RedisModule_LogIOError)(RedisModuleIO *io, const char *levelstr, const char *fmt, ...) REDISMODULE_ATTR REDISMODULE_ATTR_PRINTF(3,4);
+REDISMODULE_API void (*RedisModule__Assert)(const char *estr, const char *file, int line) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_LatencyAddSample)(const char *event, mstime_t latency) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_StringAppendBuffer)(RedisModuleCtx *ctx, RedisModuleString *str, const char *buf, size_t len) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_TrimStringAllocation)(RedisModuleString *str) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_RetainString)(RedisModuleCtx *ctx, RedisModuleString *str) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_HoldString)(RedisModuleCtx *ctx, RedisModuleString *str) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_StringCompare)(RedisModuleString *a, RedisModuleString *b) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleCtx * (*RedisModule_GetContextFromIO)(RedisModuleIO *io) REDISMODULE_ATTR;
+REDISMODULE_API const RedisModuleString * (*RedisModule_GetKeyNameFromIO)(RedisModuleIO *io) REDISMODULE_ATTR;
+REDISMODULE_API const RedisModuleString * (*RedisModule_GetKeyNameFromModuleKey)(RedisModuleKey *key) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_GetDbIdFromModuleKey)(RedisModuleKey *key) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_GetDbIdFromIO)(RedisModuleIO *io) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_GetDbIdFromOptCtx)(RedisModuleKeyOptCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_GetToDbIdFromOptCtx)(RedisModuleKeyOptCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API const RedisModuleString * (*RedisModule_GetKeyNameFromOptCtx)(RedisModuleKeyOptCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API const RedisModuleString * (*RedisModule_GetToKeyNameFromOptCtx)(RedisModuleKeyOptCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API long long (*RedisModule_Milliseconds)(void) REDISMODULE_ATTR;
+REDISMODULE_API uint64_t (*RedisModule_MonotonicMicroseconds)(void) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_DigestAddStringBuffer)(RedisModuleDigest *md, const char *ele, size_t len) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_DigestAddLongLong)(RedisModuleDigest *md, long long ele) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_DigestEndSequence)(RedisModuleDigest *md) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_GetDbIdFromDigest)(RedisModuleDigest *dig) REDISMODULE_ATTR;
+REDISMODULE_API const RedisModuleString * (*RedisModule_GetKeyNameFromDigest)(RedisModuleDigest *dig) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleDict * (*RedisModule_CreateDict)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_FreeDict)(RedisModuleCtx *ctx, RedisModuleDict *d) REDISMODULE_ATTR;
+REDISMODULE_API uint64_t (*RedisModule_DictSize)(RedisModuleDict *d) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_DictSetC)(RedisModuleDict *d, void *key, size_t keylen, void *ptr) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_DictReplaceC)(RedisModuleDict *d, void *key, size_t keylen, void *ptr) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_DictSet)(RedisModuleDict *d, RedisModuleString *key, void *ptr) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_DictReplace)(RedisModuleDict *d, RedisModuleString *key, void *ptr) REDISMODULE_ATTR;
+REDISMODULE_API void * (*RedisModule_DictGetC)(RedisModuleDict *d, void *key, size_t keylen, int *nokey) REDISMODULE_ATTR;
+REDISMODULE_API void * (*RedisModule_DictGet)(RedisModuleDict *d, RedisModuleString *key, int *nokey) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_DictDelC)(RedisModuleDict *d, void *key, size_t keylen, void *oldval) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_DictDel)(RedisModuleDict *d, RedisModuleString *key, void *oldval) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleDictIter * (*RedisModule_DictIteratorStartC)(RedisModuleDict *d, const char *op, void *key, size_t keylen) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleDictIter * (*RedisModule_DictIteratorStart)(RedisModuleDict *d, const char *op, RedisModuleString *key) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_DictIteratorStop)(RedisModuleDictIter *di) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_DictIteratorReseekC)(RedisModuleDictIter *di, const char *op, void *key, size_t keylen) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_DictIteratorReseek)(RedisModuleDictIter *di, const char *op, RedisModuleString *key) REDISMODULE_ATTR;
+REDISMODULE_API void * (*RedisModule_DictNextC)(RedisModuleDictIter *di, size_t *keylen, void **dataptr) REDISMODULE_ATTR;
+REDISMODULE_API void * (*RedisModule_DictPrevC)(RedisModuleDictIter *di, size_t *keylen, void **dataptr) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_DictNext)(RedisModuleCtx *ctx, RedisModuleDictIter *di, void **dataptr) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_DictPrev)(RedisModuleCtx *ctx, RedisModuleDictIter *di, void **dataptr) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_DictCompareC)(RedisModuleDictIter *di, const char *op, void *key, size_t keylen) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_DictCompare)(RedisModuleDictIter *di, const char *op, RedisModuleString *key) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_RegisterInfoFunc)(RedisModuleCtx *ctx, RedisModuleInfoFunc cb) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_InfoAddSection)(RedisModuleInfoCtx *ctx, const char *name) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_InfoBeginDictField)(RedisModuleInfoCtx *ctx, const char *name) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_InfoEndDictField)(RedisModuleInfoCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_InfoAddFieldString)(RedisModuleInfoCtx *ctx, const char *field, RedisModuleString *value) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_InfoAddFieldCString)(RedisModuleInfoCtx *ctx, const char *field,const  char *value) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_InfoAddFieldDouble)(RedisModuleInfoCtx *ctx, const char *field, double value) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_InfoAddFieldLongLong)(RedisModuleInfoCtx *ctx, const char *field, long long value) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_InfoAddFieldULongLong)(RedisModuleInfoCtx *ctx, const char *field, unsigned long long value) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleServerInfoData * (*RedisModule_GetServerInfo)(RedisModuleCtx *ctx, const char *section) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_FreeServerInfo)(RedisModuleCtx *ctx, RedisModuleServerInfoData *data) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_ServerInfoGetField)(RedisModuleCtx *ctx, RedisModuleServerInfoData *data, const char* field) REDISMODULE_ATTR;
+REDISMODULE_API const char * (*RedisModule_ServerInfoGetFieldC)(RedisModuleServerInfoData *data, const char* field) REDISMODULE_ATTR;
+REDISMODULE_API long long (*RedisModule_ServerInfoGetFieldSigned)(RedisModuleServerInfoData *data, const char* field, int *out_err) REDISMODULE_ATTR;
+REDISMODULE_API unsigned long long (*RedisModule_ServerInfoGetFieldUnsigned)(RedisModuleServerInfoData *data, const char* field, int *out_err) REDISMODULE_ATTR;
+REDISMODULE_API double (*RedisModule_ServerInfoGetFieldDouble)(RedisModuleServerInfoData *data, const char* field, int *out_err) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_SubscribeToServerEvent)(RedisModuleCtx *ctx, RedisModuleEvent event, RedisModuleEventCallback callback) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_SetLRU)(RedisModuleKey *key, mstime_t lru_idle) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_GetLRU)(RedisModuleKey *key, mstime_t *lru_idle) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_SetLFU)(RedisModuleKey *key, long long lfu_freq) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_GetLFU)(RedisModuleKey *key, long long *lfu_freq) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleBlockedClient * (*RedisModule_BlockClientOnKeys)(RedisModuleCtx *ctx, RedisModuleCmdFunc reply_callback, RedisModuleCmdFunc timeout_callback, void (*free_privdata)(RedisModuleCtx*,void*), long long timeout_ms, RedisModuleString **keys, int numkeys, void *privdata) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_SignalKeyAsReady)(RedisModuleCtx *ctx, RedisModuleString *key) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_GetBlockedClientReadyKey)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleScanCursor * (*RedisModule_ScanCursorCreate)() REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_ScanCursorRestart)(RedisModuleScanCursor *cursor) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_ScanCursorDestroy)(RedisModuleScanCursor *cursor) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_Scan)(RedisModuleCtx *ctx, RedisModuleScanCursor *cursor, RedisModuleScanCB fn, void *privdata) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ScanKey)(RedisModuleKey *key, RedisModuleScanCursor *cursor, RedisModuleScanKeyCB fn, void *privdata) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_GetContextFlagsAll)() REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_GetKeyspaceNotificationFlagsAll)() REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_IsSubEventSupported)(RedisModuleEvent event, uint64_t subevent) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_GetServerVersion)() REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_GetTypeMethodVersion)() REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_Yield)(RedisModuleCtx *ctx, int flags, const char *busy_reply) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleBlockedClient * (*RedisModule_BlockClient)(RedisModuleCtx *ctx, RedisModuleCmdFunc reply_callback, RedisModuleCmdFunc timeout_callback, void (*free_privdata)(RedisModuleCtx*,void*), long long timeout_ms) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_UnblockClient)(RedisModuleBlockedClient *bc, void *privdata) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_IsBlockedReplyRequest)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_IsBlockedTimeoutRequest)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API void * (*RedisModule_GetBlockedClientPrivateData)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleBlockedClient * (*RedisModule_GetBlockedClientHandle)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_AbortBlock)(RedisModuleBlockedClient *bc) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_BlockedClientMeasureTimeStart)(RedisModuleBlockedClient *bc) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_BlockedClientMeasureTimeEnd)(RedisModuleBlockedClient *bc) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleCtx * (*RedisModule_GetThreadSafeContext)(RedisModuleBlockedClient *bc) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleCtx * (*RedisModule_GetDetachedThreadSafeContext)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_FreeThreadSafeContext)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_ThreadSafeContextLock)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ThreadSafeContextTryLock)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_ThreadSafeContextUnlock)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_SubscribeToKeyspaceEvents)(RedisModuleCtx *ctx, int types, RedisModuleNotificationFunc cb) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_NotifyKeyspaceEvent)(RedisModuleCtx *ctx, int type, const char *event, RedisModuleString *key) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_GetNotifyKeyspaceEvents)() REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_BlockedClientDisconnected)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_RegisterClusterMessageReceiver)(RedisModuleCtx *ctx, uint8_t type, RedisModuleClusterMessageReceiver callback) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_SendClusterMessage)(RedisModuleCtx *ctx, const char *target_id, uint8_t type, const char *msg, uint32_t len) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_GetClusterNodeInfo)(RedisModuleCtx *ctx, const char *id, char *ip, char *master_id, int *port, int *flags) REDISMODULE_ATTR;
+REDISMODULE_API char ** (*RedisModule_GetClusterNodesList)(RedisModuleCtx *ctx, size_t *numnodes) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_FreeClusterNodesList)(char **ids) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleTimerID (*RedisModule_CreateTimer)(RedisModuleCtx *ctx, mstime_t period, RedisModuleTimerProc callback, void *data) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_StopTimer)(RedisModuleCtx *ctx, RedisModuleTimerID id, void **data) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_GetTimerInfo)(RedisModuleCtx *ctx, RedisModuleTimerID id, uint64_t *remaining, void **data) REDISMODULE_ATTR;
+REDISMODULE_API const char * (*RedisModule_GetMyClusterID)(void) REDISMODULE_ATTR;
+REDISMODULE_API size_t (*RedisModule_GetClusterSize)(void) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_GetRandomBytes)(unsigned char *dst, size_t len) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_GetRandomHexChars)(char *dst, size_t len) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_SetDisconnectCallback)(RedisModuleBlockedClient *bc, RedisModuleDisconnectFunc callback) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_SetClusterFlags)(RedisModuleCtx *ctx, uint64_t flags) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ExportSharedAPI)(RedisModuleCtx *ctx, const char *apiname, void *func) REDISMODULE_ATTR;
+REDISMODULE_API void * (*RedisModule_GetSharedAPI)(RedisModuleCtx *ctx, const char *apiname) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleCommandFilter * (*RedisModule_RegisterCommandFilter)(RedisModuleCtx *ctx, RedisModuleCommandFilterFunc cb, int flags) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_UnregisterCommandFilter)(RedisModuleCtx *ctx, RedisModuleCommandFilter *filter) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_CommandFilterArgsCount)(RedisModuleCommandFilterCtx *fctx) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_CommandFilterArgGet)(RedisModuleCommandFilterCtx *fctx, int pos) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_CommandFilterArgInsert)(RedisModuleCommandFilterCtx *fctx, int pos, RedisModuleString *arg) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_CommandFilterArgReplace)(RedisModuleCommandFilterCtx *fctx, int pos, RedisModuleString *arg) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_CommandFilterArgDelete)(RedisModuleCommandFilterCtx *fctx, int pos) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_Fork)(RedisModuleForkDoneHandler cb, void *user_data) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_SendChildHeartbeat)(double progress) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ExitFromChild)(int retcode) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_KillForkChild)(int child_pid) REDISMODULE_ATTR;
+REDISMODULE_API float (*RedisModule_GetUsedMemoryRatio)() REDISMODULE_ATTR;
+REDISMODULE_API size_t (*RedisModule_MallocSize)(void* ptr) REDISMODULE_ATTR;
+REDISMODULE_API size_t (*RedisModule_MallocUsableSize)(void *ptr) REDISMODULE_ATTR;
+REDISMODULE_API size_t (*RedisModule_MallocSizeString)(RedisModuleString* str) REDISMODULE_ATTR;
+REDISMODULE_API size_t (*RedisModule_MallocSizeDict)(RedisModuleDict* dict) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleUser * (*RedisModule_CreateModuleUser)(const char *name) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_FreeModuleUser)(RedisModuleUser *user) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_SetContextUser)(RedisModuleCtx *ctx, const RedisModuleUser *user) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_SetModuleUserACL)(RedisModuleUser *user, const char* acl) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_SetModuleUserACLString)(RedisModuleCtx * ctx, RedisModuleUser *user, const char* acl, RedisModuleString **error) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_GetModuleUserACLString)(RedisModuleUser *user) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_GetCurrentUserName)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleUser * (*RedisModule_GetModuleUserFromUserName)(RedisModuleString *name) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ACLCheckCommandPermissions)(RedisModuleUser *user, RedisModuleString **argv, int argc) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ACLCheckKeyPermissions)(RedisModuleUser *user, RedisModuleString *key, int flags) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_ACLCheckChannelPermissions)(RedisModuleUser *user, RedisModuleString *ch, int literal) REDISMODULE_ATTR;
+REDISMODULE_API void (*RedisModule_ACLAddLogEntry)(RedisModuleCtx *ctx, RedisModuleUser *user, RedisModuleString *object, RedisModuleACLLogEntryReason reason) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_AuthenticateClientWithACLUser)(RedisModuleCtx *ctx, const char *name, size_t len, RedisModuleUserChangedFunc callback, void *privdata, uint64_t *client_id) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_AuthenticateClientWithUser)(RedisModuleCtx *ctx, RedisModuleUser *user, RedisModuleUserChangedFunc callback, void *privdata, uint64_t *client_id) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_DeauthenticateAndCloseClient)(RedisModuleCtx *ctx, uint64_t client_id) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_RedactClientCommandArgument)(RedisModuleCtx *ctx, int pos) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString * (*RedisModule_GetClientCertificate)(RedisModuleCtx *ctx, uint64_t id) REDISMODULE_ATTR;
+REDISMODULE_API int *(*RedisModule_GetCommandKeys)(RedisModuleCtx *ctx, RedisModuleString **argv, int argc, int *num_keys) REDISMODULE_ATTR;
+REDISMODULE_API int *(*RedisModule_GetCommandKeysWithFlags)(RedisModuleCtx *ctx, RedisModuleString **argv, int argc, int *num_keys, int **out_flags) REDISMODULE_ATTR;
+REDISMODULE_API const char *(*RedisModule_GetCurrentCommandName)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_RegisterDefragFunc)(RedisModuleCtx *ctx, RedisModuleDefragFunc func) REDISMODULE_ATTR;
+REDISMODULE_API void *(*RedisModule_DefragAlloc)(RedisModuleDefragCtx *ctx, void *ptr) REDISMODULE_ATTR;
+REDISMODULE_API RedisModuleString *(*RedisModule_DefragRedisModuleString)(RedisModuleDefragCtx *ctx, RedisModuleString *str) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_DefragShouldStop)(RedisModuleDefragCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_DefragCursorSet)(RedisModuleDefragCtx *ctx, unsigned long cursor) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_DefragCursorGet)(RedisModuleDefragCtx *ctx, unsigned long *cursor) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_GetDbIdFromDefragCtx)(RedisModuleDefragCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API const RedisModuleString * (*RedisModule_GetKeyNameFromDefragCtx)(RedisModuleDefragCtx *ctx) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_EventLoopAdd)(int fd, int mask, RedisModuleEventLoopFunc func, void *user_data) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_EventLoopDel)(int fd, int mask) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_EventLoopAddOneShot)(RedisModuleEventLoopOneShotFunc func, void *user_data) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_RegisterBoolConfig)(RedisModuleCtx *ctx, const char *name, int default_val, unsigned int flags, RedisModuleConfigGetBoolFunc getfn, RedisModuleConfigSetBoolFunc setfn, RedisModuleConfigApplyFunc applyfn, void *privdata) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_RegisterNumericConfig)(RedisModuleCtx *ctx, const char *name, long long default_val, unsigned int flags, long long min, long long max, RedisModuleConfigGetNumericFunc getfn, RedisModuleConfigSetNumericFunc setfn, RedisModuleConfigApplyFunc applyfn, void *privdata) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_RegisterStringConfig)(RedisModuleCtx *ctx, const char *name, const char *default_val, unsigned int flags, RedisModuleConfigGetStringFunc getfn, RedisModuleConfigSetStringFunc setfn, RedisModuleConfigApplyFunc applyfn, void *privdata) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_RegisterEnumConfig)(RedisModuleCtx *ctx, const char *name, int default_val, unsigned int flags, const char **enum_values, const int *int_values, int num_enum_vals, RedisModuleConfigGetEnumFunc getfn, RedisModuleConfigSetEnumFunc setfn, RedisModuleConfigApplyFunc applyfn, void *privdata) REDISMODULE_ATTR;
+REDISMODULE_API int (*RedisModule_LoadConfigs)(RedisModuleCtx *ctx) REDISMODULE_ATTR;
+
+#define RedisModule_IsAOFClient(id) ((id) == UINT64_MAX)
+
+/* This is included inline inside each Redis module. */
+static int RedisModule_Init(RedisModuleCtx *ctx, const char *name, int ver, int apiver) REDISMODULE_ATTR_UNUSED;
+static int RedisModule_Init(RedisModuleCtx *ctx, const char *name, int ver, int apiver) {
+    void *getapifuncptr = ((void**)ctx)[0];
+    RedisModule_GetApi = (int (*)(const char *, void *)) (unsigned long)getapifuncptr;
+    REDISMODULE_GET_API(Alloc);
+    REDISMODULE_GET_API(TryAlloc);
+    REDISMODULE_GET_API(Calloc);
+    REDISMODULE_GET_API(Free);
+    REDISMODULE_GET_API(Realloc);
+    REDISMODULE_GET_API(Strdup);
+    REDISMODULE_GET_API(CreateCommand);
+    REDISMODULE_GET_API(GetCommand);
+    REDISMODULE_GET_API(CreateSubcommand);
+    REDISMODULE_GET_API(SetCommandInfo);
+    REDISMODULE_GET_API(SetModuleAttribs);
+    REDISMODULE_GET_API(IsModuleNameBusy);
+    REDISMODULE_GET_API(WrongArity);
+    REDISMODULE_GET_API(ReplyWithLongLong);
+    REDISMODULE_GET_API(ReplyWithError);
+    REDISMODULE_GET_API(ReplyWithSimpleString);
+    REDISMODULE_GET_API(ReplyWithArray);
+    REDISMODULE_GET_API(ReplyWithMap);
+    REDISMODULE_GET_API(ReplyWithSet);
+    REDISMODULE_GET_API(ReplyWithAttribute);
+    REDISMODULE_GET_API(ReplyWithNullArray);
+    REDISMODULE_GET_API(ReplyWithEmptyArray);
+    REDISMODULE_GET_API(ReplySetArrayLength);
+    REDISMODULE_GET_API(ReplySetMapLength);
+    REDISMODULE_GET_API(ReplySetSetLength);
+    REDISMODULE_GET_API(ReplySetAttributeLength);
+    REDISMODULE_GET_API(ReplySetPushLength);
+    REDISMODULE_GET_API(ReplyWithStringBuffer);
+    REDISMODULE_GET_API(ReplyWithCString);
+    REDISMODULE_GET_API(ReplyWithString);
+    REDISMODULE_GET_API(ReplyWithEmptyString);
+    REDISMODULE_GET_API(ReplyWithVerbatimString);
+    REDISMODULE_GET_API(ReplyWithVerbatimStringType);
+    REDISMODULE_GET_API(ReplyWithNull);
+    REDISMODULE_GET_API(ReplyWithBool);
+    REDISMODULE_GET_API(ReplyWithCallReply);
+    REDISMODULE_GET_API(ReplyWithDouble);
+    REDISMODULE_GET_API(ReplyWithBigNumber);
+    REDISMODULE_GET_API(ReplyWithLongDouble);
+    REDISMODULE_GET_API(GetSelectedDb);
+    REDISMODULE_GET_API(SelectDb);
+    REDISMODULE_GET_API(KeyExists);
+    REDISMODULE_GET_API(OpenKey);
+    REDISMODULE_GET_API(CloseKey);
+    REDISMODULE_GET_API(KeyType);
+    REDISMODULE_GET_API(ValueLength);
+    REDISMODULE_GET_API(ListPush);
+    REDISMODULE_GET_API(ListPop);
+    REDISMODULE_GET_API(ListGet);
+    REDISMODULE_GET_API(ListSet);
+    REDISMODULE_GET_API(ListInsert);
+    REDISMODULE_GET_API(ListDelete);
+    REDISMODULE_GET_API(StringToLongLong);
+    REDISMODULE_GET_API(StringToULongLong);
+    REDISMODULE_GET_API(StringToDouble);
+    REDISMODULE_GET_API(StringToLongDouble);
+    REDISMODULE_GET_API(StringToStreamID);
+    REDISMODULE_GET_API(Call);
+    REDISMODULE_GET_API(CallReplyProto);
+    REDISMODULE_GET_API(FreeCallReply);
+    REDISMODULE_GET_API(CallReplyInteger);
+    REDISMODULE_GET_API(CallReplyDouble);
+    REDISMODULE_GET_API(CallReplyBool);
+    REDISMODULE_GET_API(CallReplyBigNumber);
+    REDISMODULE_GET_API(CallReplyVerbatim);
+    REDISMODULE_GET_API(CallReplySetElement);
+    REDISMODULE_GET_API(CallReplyMapElement);
+    REDISMODULE_GET_API(CallReplyAttributeElement);
+    REDISMODULE_GET_API(CallReplyAttribute);
+    REDISMODULE_GET_API(CallReplyType);
+    REDISMODULE_GET_API(CallReplyLength);
+    REDISMODULE_GET_API(CallReplyArrayElement);
+    REDISMODULE_GET_API(CallReplyStringPtr);
+    REDISMODULE_GET_API(CreateStringFromCallReply);
+    REDISMODULE_GET_API(CreateString);
+    REDISMODULE_GET_API(CreateStringFromLongLong);
+    REDISMODULE_GET_API(CreateStringFromULongLong);
+    REDISMODULE_GET_API(CreateStringFromDouble);
+    REDISMODULE_GET_API(CreateStringFromLongDouble);
+    REDISMODULE_GET_API(CreateStringFromString);
+    REDISMODULE_GET_API(CreateStringFromStreamID);
+    REDISMODULE_GET_API(CreateStringPrintf);
+    REDISMODULE_GET_API(FreeString);
+    REDISMODULE_GET_API(StringPtrLen);
+    REDISMODULE_GET_API(AutoMemory);
+    REDISMODULE_GET_API(Replicate);
+    REDISMODULE_GET_API(ReplicateVerbatim);
+    REDISMODULE_GET_API(DeleteKey);
+    REDISMODULE_GET_API(UnlinkKey);
+    REDISMODULE_GET_API(StringSet);
+    REDISMODULE_GET_API(StringDMA);
+    REDISMODULE_GET_API(StringTruncate);
+    REDISMODULE_GET_API(GetExpire);
+    REDISMODULE_GET_API(SetExpire);
+    REDISMODULE_GET_API(GetAbsExpire);
+    REDISMODULE_GET_API(SetAbsExpire);
+    REDISMODULE_GET_API(ResetDataset);
+    REDISMODULE_GET_API(DbSize);
+    REDISMODULE_GET_API(RandomKey);
+    REDISMODULE_GET_API(ZsetAdd);
+    REDISMODULE_GET_API(ZsetIncrby);
+    REDISMODULE_GET_API(ZsetScore);
+    REDISMODULE_GET_API(ZsetRem);
+    REDISMODULE_GET_API(ZsetRangeStop);
+    REDISMODULE_GET_API(ZsetFirstInScoreRange);
+    REDISMODULE_GET_API(ZsetLastInScoreRange);
+    REDISMODULE_GET_API(ZsetFirstInLexRange);
+    REDISMODULE_GET_API(ZsetLastInLexRange);
+    REDISMODULE_GET_API(ZsetRangeCurrentElement);
+    REDISMODULE_GET_API(ZsetRangeNext);
+    REDISMODULE_GET_API(ZsetRangePrev);
+    REDISMODULE_GET_API(ZsetRangeEndReached);
+    REDISMODULE_GET_API(HashSet);
+    REDISMODULE_GET_API(HashGet);
+    REDISMODULE_GET_API(StreamAdd);
+    REDISMODULE_GET_API(StreamDelete);
+    REDISMODULE_GET_API(StreamIteratorStart);
+    REDISMODULE_GET_API(StreamIteratorStop);
+    REDISMODULE_GET_API(StreamIteratorNextID);
+    REDISMODULE_GET_API(StreamIteratorNextField);
+    REDISMODULE_GET_API(StreamIteratorDelete);
+    REDISMODULE_GET_API(StreamTrimByLength);
+    REDISMODULE_GET_API(StreamTrimByID);
+    REDISMODULE_GET_API(IsKeysPositionRequest);
+    REDISMODULE_GET_API(KeyAtPos);
+    REDISMODULE_GET_API(KeyAtPosWithFlags);
+    REDISMODULE_GET_API(IsChannelsPositionRequest);
+    REDISMODULE_GET_API(ChannelAtPosWithFlags);
+    REDISMODULE_GET_API(GetClientId);
+    REDISMODULE_GET_API(GetClientUserNameById);
+    REDISMODULE_GET_API(GetContextFlags);
+    REDISMODULE_GET_API(AvoidReplicaTraffic);
+    REDISMODULE_GET_API(PoolAlloc);
+    REDISMODULE_GET_API(CreateDataType);
+    REDISMODULE_GET_API(ModuleTypeSetValue);
+    REDISMODULE_GET_API(ModuleTypeReplaceValue);
+    REDISMODULE_GET_API(ModuleTypeGetType);
+    REDISMODULE_GET_API(ModuleTypeGetValue);
+    REDISMODULE_GET_API(IsIOError);
+    REDISMODULE_GET_API(SetModuleOptions);
+    REDISMODULE_GET_API(SignalModifiedKey);
+    REDISMODULE_GET_API(SaveUnsigned);
+    REDISMODULE_GET_API(LoadUnsigned);
+    REDISMODULE_GET_API(SaveSigned);
+    REDISMODULE_GET_API(LoadSigned);
+    REDISMODULE_GET_API(SaveString);
+    REDISMODULE_GET_API(SaveStringBuffer);
+    REDISMODULE_GET_API(LoadString);
+    REDISMODULE_GET_API(LoadStringBuffer);
+    REDISMODULE_GET_API(SaveDouble);
+    REDISMODULE_GET_API(LoadDouble);
+    REDISMODULE_GET_API(SaveFloat);
+    REDISMODULE_GET_API(LoadFloat);
+    REDISMODULE_GET_API(SaveLongDouble);
+    REDISMODULE_GET_API(LoadLongDouble);
+    REDISMODULE_GET_API(SaveDataTypeToString);
+    REDISMODULE_GET_API(LoadDataTypeFromString);
+    REDISMODULE_GET_API(LoadDataTypeFromStringEncver);
+    REDISMODULE_GET_API(EmitAOF);
+    REDISMODULE_GET_API(Log);
+    REDISMODULE_GET_API(LogIOError);
+    REDISMODULE_GET_API(_Assert);
+    REDISMODULE_GET_API(LatencyAddSample);
+    REDISMODULE_GET_API(StringAppendBuffer);
+    REDISMODULE_GET_API(TrimStringAllocation);
+    REDISMODULE_GET_API(RetainString);
+    REDISMODULE_GET_API(HoldString);
+    REDISMODULE_GET_API(StringCompare);
+    REDISMODULE_GET_API(GetContextFromIO);
+    REDISMODULE_GET_API(GetKeyNameFromIO);
+    REDISMODULE_GET_API(GetKeyNameFromModuleKey);
+    REDISMODULE_GET_API(GetDbIdFromModuleKey);
+    REDISMODULE_GET_API(GetDbIdFromIO);
+    REDISMODULE_GET_API(GetKeyNameFromOptCtx);
+    REDISMODULE_GET_API(GetToKeyNameFromOptCtx);
+    REDISMODULE_GET_API(GetDbIdFromOptCtx);
+    REDISMODULE_GET_API(GetToDbIdFromOptCtx);
+    REDISMODULE_GET_API(Milliseconds);
+    REDISMODULE_GET_API(MonotonicMicroseconds);
+    REDISMODULE_GET_API(DigestAddStringBuffer);
+    REDISMODULE_GET_API(DigestAddLongLong);
+    REDISMODULE_GET_API(DigestEndSequence);
+    REDISMODULE_GET_API(GetKeyNameFromDigest);
+    REDISMODULE_GET_API(GetDbIdFromDigest);
+    REDISMODULE_GET_API(CreateDict);
+    REDISMODULE_GET_API(FreeDict);
+    REDISMODULE_GET_API(DictSize);
+    REDISMODULE_GET_API(DictSetC);
+    REDISMODULE_GET_API(DictReplaceC);
+    REDISMODULE_GET_API(DictSet);
+    REDISMODULE_GET_API(DictReplace);
+    REDISMODULE_GET_API(DictGetC);
+    REDISMODULE_GET_API(DictGet);
+    REDISMODULE_GET_API(DictDelC);
+    REDISMODULE_GET_API(DictDel);
+    REDISMODULE_GET_API(DictIteratorStartC);
+    REDISMODULE_GET_API(DictIteratorStart);
+    REDISMODULE_GET_API(DictIteratorStop);
+    REDISMODULE_GET_API(DictIteratorReseekC);
+    REDISMODULE_GET_API(DictIteratorReseek);
+    REDISMODULE_GET_API(DictNextC);
+    REDISMODULE_GET_API(DictPrevC);
+    REDISMODULE_GET_API(DictNext);
+    REDISMODULE_GET_API(DictPrev);
+    REDISMODULE_GET_API(DictCompare);
+    REDISMODULE_GET_API(DictCompareC);
+    REDISMODULE_GET_API(RegisterInfoFunc);
+    REDISMODULE_GET_API(InfoAddSection);
+    REDISMODULE_GET_API(InfoBeginDictField);
+    REDISMODULE_GET_API(InfoEndDictField);
+    REDISMODULE_GET_API(InfoAddFieldString);
+    REDISMODULE_GET_API(InfoAddFieldCString);
+    REDISMODULE_GET_API(InfoAddFieldDouble);
+    REDISMODULE_GET_API(InfoAddFieldLongLong);
+    REDISMODULE_GET_API(InfoAddFieldULongLong);
+    REDISMODULE_GET_API(GetServerInfo);
+    REDISMODULE_GET_API(FreeServerInfo);
+    REDISMODULE_GET_API(ServerInfoGetField);
+    REDISMODULE_GET_API(ServerInfoGetFieldC);
+    REDISMODULE_GET_API(ServerInfoGetFieldSigned);
+    REDISMODULE_GET_API(ServerInfoGetFieldUnsigned);
+    REDISMODULE_GET_API(ServerInfoGetFieldDouble);
+    REDISMODULE_GET_API(GetClientInfoById);
+    REDISMODULE_GET_API(GetClientNameById);
+    REDISMODULE_GET_API(SetClientNameById);
+    REDISMODULE_GET_API(PublishMessage);
+    REDISMODULE_GET_API(PublishMessageShard);
+    REDISMODULE_GET_API(SubscribeToServerEvent);
+    REDISMODULE_GET_API(SetLRU);
+    REDISMODULE_GET_API(GetLRU);
+    REDISMODULE_GET_API(SetLFU);
+    REDISMODULE_GET_API(GetLFU);
+    REDISMODULE_GET_API(BlockClientOnKeys);
+    REDISMODULE_GET_API(SignalKeyAsReady);
+    REDISMODULE_GET_API(GetBlockedClientReadyKey);
+    REDISMODULE_GET_API(ScanCursorCreate);
+    REDISMODULE_GET_API(ScanCursorRestart);
+    REDISMODULE_GET_API(ScanCursorDestroy);
+    REDISMODULE_GET_API(Scan);
+    REDISMODULE_GET_API(ScanKey);
+    REDISMODULE_GET_API(GetContextFlagsAll);
+    REDISMODULE_GET_API(GetKeyspaceNotificationFlagsAll);
+    REDISMODULE_GET_API(IsSubEventSupported);
+    REDISMODULE_GET_API(GetServerVersion);
+    REDISMODULE_GET_API(GetTypeMethodVersion);
+    REDISMODULE_GET_API(Yield);
+    REDISMODULE_GET_API(GetThreadSafeContext);
+    REDISMODULE_GET_API(GetDetachedThreadSafeContext);
+    REDISMODULE_GET_API(FreeThreadSafeContext);
+    REDISMODULE_GET_API(ThreadSafeContextLock);
+    REDISMODULE_GET_API(ThreadSafeContextTryLock);
+    REDISMODULE_GET_API(ThreadSafeContextUnlock);
+    REDISMODULE_GET_API(BlockClient);
+    REDISMODULE_GET_API(UnblockClient);
+    REDISMODULE_GET_API(IsBlockedReplyRequest);
+    REDISMODULE_GET_API(IsBlockedTimeoutRequest);
+    REDISMODULE_GET_API(GetBlockedClientPrivateData);
+    REDISMODULE_GET_API(GetBlockedClientHandle);
+    REDISMODULE_GET_API(AbortBlock);
+    REDISMODULE_GET_API(BlockedClientMeasureTimeStart);
+    REDISMODULE_GET_API(BlockedClientMeasureTimeEnd);
+    REDISMODULE_GET_API(SetDisconnectCallback);
+    REDISMODULE_GET_API(SubscribeToKeyspaceEvents);
+    REDISMODULE_GET_API(NotifyKeyspaceEvent);
+    REDISMODULE_GET_API(GetNotifyKeyspaceEvents);
+    REDISMODULE_GET_API(BlockedClientDisconnected);
+    REDISMODULE_GET_API(RegisterClusterMessageReceiver);
+    REDISMODULE_GET_API(SendClusterMessage);
+    REDISMODULE_GET_API(GetClusterNodeInfo);
+    REDISMODULE_GET_API(GetClusterNodesList);
+    REDISMODULE_GET_API(FreeClusterNodesList);
+    REDISMODULE_GET_API(CreateTimer);
+    REDISMODULE_GET_API(StopTimer);
+    REDISMODULE_GET_API(GetTimerInfo);
+    REDISMODULE_GET_API(GetMyClusterID);
+    REDISMODULE_GET_API(GetClusterSize);
+    REDISMODULE_GET_API(GetRandomBytes);
+    REDISMODULE_GET_API(GetRandomHexChars);
+    REDISMODULE_GET_API(SetClusterFlags);
+    REDISMODULE_GET_API(ExportSharedAPI);
+    REDISMODULE_GET_API(GetSharedAPI);
+    REDISMODULE_GET_API(RegisterCommandFilter);
+    REDISMODULE_GET_API(UnregisterCommandFilter);
+    REDISMODULE_GET_API(CommandFilterArgsCount);
+    REDISMODULE_GET_API(CommandFilterArgGet);
+    REDISMODULE_GET_API(CommandFilterArgInsert);
+    REDISMODULE_GET_API(CommandFilterArgReplace);
+    REDISMODULE_GET_API(CommandFilterArgDelete);
+    REDISMODULE_GET_API(Fork);
+    REDISMODULE_GET_API(SendChildHeartbeat);
+    REDISMODULE_GET_API(ExitFromChild);
+    REDISMODULE_GET_API(KillForkChild);
+    REDISMODULE_GET_API(GetUsedMemoryRatio);
+    REDISMODULE_GET_API(MallocSize);
+    REDISMODULE_GET_API(MallocUsableSize);
+    REDISMODULE_GET_API(MallocSizeString);
+    REDISMODULE_GET_API(MallocSizeDict);
+    REDISMODULE_GET_API(CreateModuleUser);
+    REDISMODULE_GET_API(FreeModuleUser);
+    REDISMODULE_GET_API(SetContextUser);
+    REDISMODULE_GET_API(SetModuleUserACL);
+    REDISMODULE_GET_API(SetModuleUserACLString);
+    REDISMODULE_GET_API(GetModuleUserACLString);
+    REDISMODULE_GET_API(GetCurrentUserName);
+    REDISMODULE_GET_API(GetModuleUserFromUserName);
+    REDISMODULE_GET_API(ACLCheckCommandPermissions);
+    REDISMODULE_GET_API(ACLCheckKeyPermissions);
+    REDISMODULE_GET_API(ACLCheckChannelPermissions);
+    REDISMODULE_GET_API(ACLAddLogEntry);
+    REDISMODULE_GET_API(DeauthenticateAndCloseClient);
+    REDISMODULE_GET_API(AuthenticateClientWithACLUser);
+    REDISMODULE_GET_API(AuthenticateClientWithUser);
+    REDISMODULE_GET_API(RedactClientCommandArgument);
+    REDISMODULE_GET_API(GetClientCertificate);
+    REDISMODULE_GET_API(GetCommandKeys);
+    REDISMODULE_GET_API(GetCommandKeysWithFlags);
+    REDISMODULE_GET_API(GetCurrentCommandName);
+    REDISMODULE_GET_API(RegisterDefragFunc);
+    REDISMODULE_GET_API(DefragAlloc);
+    REDISMODULE_GET_API(DefragRedisModuleString);
+    REDISMODULE_GET_API(DefragShouldStop);
+    REDISMODULE_GET_API(DefragCursorSet);
+    REDISMODULE_GET_API(DefragCursorGet);
+    REDISMODULE_GET_API(GetKeyNameFromDefragCtx);
+    REDISMODULE_GET_API(GetDbIdFromDefragCtx);
+    REDISMODULE_GET_API(EventLoopAdd);
+    REDISMODULE_GET_API(EventLoopDel);
+    REDISMODULE_GET_API(EventLoopAddOneShot);
+    REDISMODULE_GET_API(RegisterBoolConfig);
+    REDISMODULE_GET_API(RegisterNumericConfig);
+    REDISMODULE_GET_API(RegisterStringConfig);
+    REDISMODULE_GET_API(RegisterEnumConfig);
+    REDISMODULE_GET_API(LoadConfigs);
+
+    if (RedisModule_IsModuleNameBusy && RedisModule_IsModuleNameBusy(name)) return REDISMODULE_ERR;
+    RedisModule_SetModuleAttribs(ctx,name,ver,apiver);
+    return REDISMODULE_OK;
+}
+
+#define RedisModule_Assert(_e) ((_e)?(void)0 : (RedisModule__Assert(#_e,__FILE__,__LINE__),exit(1)))
+
+#define RMAPI_FUNC_SUPPORTED(func) (func != NULL)
+
+#else
+
+/* Things only defined for the modules core, not exported to modules
+ * including this file. */
+#define RedisModuleString robj
+
+#endif /* REDISMODULE_CORE */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* REDISMODULE_H */
diff --git a/rmutil/alloc.c b/rmutil/alloc.c
new file mode 100644
index 0000000..6eee805
--- /dev/null
+++ b/rmutil/alloc.c
@@ -0,0 +1,32 @@
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include "alloc.h"
+
+/* A patched implementation of strdup that will use our patched calloc */
+char *rmalloc_strndup(const char *s, size_t n) {
+  char *ret = calloc(n + 1, sizeof(char));
+  if (ret)
+    memcpy(ret, s, n);
+  return ret;
+}
+
+/*
+ * Re-patching RedisModule_Alloc and friends to the original malloc functions
+ *
+ * This function should be called if you are working with malloc-patched code
+ * outside of redis, usually for unit tests. Call it once when entering your unit
+ * tests' main().
+ *
+ * Since including "alloc.h" while defining REDIS_MODULE_TARGET
+ * replaces all malloc functions in redis with the RM_Alloc family of functions,
+ * when running that code outside of redis, your app will crash. This function
+ * patches the RM_Alloc functions back to the original mallocs. */
+void RMUTil_InitAlloc() {
+
+  RedisModule_Alloc = malloc;
+  RedisModule_Realloc = realloc;
+  RedisModule_Calloc = calloc;
+  RedisModule_Free = free;
+  RedisModule_Strdup = strdup;
+}
diff --git a/rmutil/alloc.h b/rmutil/alloc.h
new file mode 100644
index 0000000..050ff72
--- /dev/null
+++ b/rmutil/alloc.h
@@ -0,0 +1,51 @@
+#ifndef __RMUTIL_ALLOC__
+#define __RMUTIL_ALLOC__
+
+/* Automatic Redis Module Allocation functions monkey-patching.
+ *
+ * Including this file while REDIS_MODULE_TARGET is defined, will explicitly
+ * override malloc, calloc, realloc & free with RedisModule_Alloc,
+ * RedisModule_Callc, etc implementations, that allow Redis better control and
+ * reporting over allocations per module.
+ *
+ * You should include this file in all c files AS THE LAST INCLUDED FILE
+ *
+ * This only has effect when when compiling with the macro REDIS_MODULE_TARGET
+ * defined. The idea is that for unit tests it will not be defined, but for the
+ * module build target it will be.
+ *
+ */
+
+#include <stdlib.h>
+#include <redismodule.h>
+
+char *rmalloc_strndup(const char *s, size_t n);
+
+#ifdef REDIS_MODULE_TARGET /* Set this when compiling your code as a module */
+
+#define malloc(size) RedisModule_Alloc(size)
+#define calloc(count, size) RedisModule_Calloc(count, size)
+#define realloc(ptr, size) RedisModule_Realloc(ptr, size)
+#define free(ptr) RedisModule_Free(ptr)
+
+#ifdef strdup
+#undef strdup
+#endif
+#define strdup(ptr) RedisModule_Strdup(ptr)
+
+/* More overriding */
+// needed to avoid calling strndup->malloc
+#ifdef strndup
+#undef strndup
+#endif
+#define strndup(s, n) rmalloc_strndup(s, n)
+
+#else
+
+#endif /* REDIS_MODULE_TARGET */
+/* This function should be called if you are working with malloc-patched code
+ * outside of redis, usually for unit tests. Call it once when entering your unit
+ * tests' main() */
+void RMUTil_InitAlloc();
+
+#endif /* __RMUTIL_ALLOC__ */
diff --git a/rmutil/heap.c b/rmutil/heap.c
new file mode 100644
index 0000000..fd1fffb
--- /dev/null
+++ b/rmutil/heap.c
@@ -0,0 +1,107 @@
+#include "heap.h"
+
+/* Byte-wise swap two items of size SIZE. */
+#define SWAP(a, b, size)                      \
+  do                                          \
+    {                                         \
+      register size_t __size = (size);        \
+      register char *__a = (a), *__b = (b);   \
+      do                                      \
+        {                                     \
+          char __tmp = *__a;                  \
+          *__a++ = *__b;                      \
+          *__b++ = __tmp;                     \
+        } while (--__size > 0);               \
+    } while (0)
+
+inline char *__vector_GetPtr(Vector *v, size_t pos) {
+    return v->data + (pos * v->elemSize);
+}
+
+void __sift_up(Vector *v, size_t first, size_t last, int (*cmp)(void *, void *)) {
+    size_t len = last - first;
+    if (len > 1) {
+        len = (len - 2) / 2;
+        size_t ptr = first + len;
+        if (cmp(__vector_GetPtr(v, ptr), __vector_GetPtr(v, --last)) < 0) {
+            char t[v->elemSize];
+            memcpy(t, __vector_GetPtr(v, last), v->elemSize);
+            do {
+                memcpy(__vector_GetPtr(v, last), __vector_GetPtr(v, ptr), v->elemSize);
+                last = ptr;
+                if (len == 0)
+                    break;
+                len = (len - 1) / 2;
+                ptr = first + len;
+            } while (cmp(__vector_GetPtr(v, ptr), t) < 0);
+            memcpy(__vector_GetPtr(v, last), t, v->elemSize);
+        }
+    }
+}
+
+void __sift_down(Vector *v, size_t first, size_t last, int (*cmp)(void *, void *), size_t start) {
+    // left-child of __start is at 2 * __start + 1
+    // right-child of __start is at 2 * __start + 2
+    size_t len = last - first;
+    size_t child = start - first;
+
+    if (len < 2 || (len - 2) / 2 < child)
+        return;
+
+    child = 2 * child + 1;
+
+    if ((child + 1) < len && cmp(__vector_GetPtr(v, first + child), __vector_GetPtr(v, first + child + 1)) < 0) {
+        // right-child exists and is greater than left-child
+        ++child;
+    }
+
+    // check if we are in heap-order
+    if (cmp(__vector_GetPtr(v, first + child), __vector_GetPtr(v, start)) < 0)
+        // we are, __start is larger than it's largest child
+        return;
+
+    char top[v->elemSize];
+    memcpy(top, __vector_GetPtr(v, start), v->elemSize);
+    do {
+        // we are not in heap-order, swap the parent with it's largest child
+        memcpy(__vector_GetPtr(v, start), __vector_GetPtr(v, first + child), v->elemSize);
+        start = first + child;
+
+        if ((len - 2) / 2 < child)
+            break;
+
+        // recompute the child based off of the updated parent
+        child = 2 * child + 1;
+
+        if ((child + 1) < len && cmp(__vector_GetPtr(v, first + child), __vector_GetPtr(v, first + child + 1)) < 0) {
+            // right-child exists and is greater than left-child
+            ++child;
+        }
+
+        // check if we are in heap-order
+    } while (cmp(__vector_GetPtr(v, first + child), top) >= 0);
+    memcpy(__vector_GetPtr(v, start), top, v->elemSize);
+}
+
+
+void Make_Heap(Vector *v, size_t first, size_t last, int (*cmp)(void *, void *)) {
+    if (last - first > 1) {
+        // start from the first parent, there is no need to consider children
+        for (int start = (last - first - 2) / 2; start >= 0; --start) {
+            __sift_down(v, first, last, cmp, first + start);
+        }
+    }
+}
+
+
+inline void Heap_Push(Vector *v, size_t first, size_t last, int (*cmp)(void *, void *)) {
+    __sift_up(v, first, last, cmp);
+}
+
+
+inline void Heap_Pop(Vector *v, size_t first, size_t last, int (*cmp)(void *, void *)) {
+    if (last - first > 1) {
+        SWAP(__vector_GetPtr(v, first), __vector_GetPtr(v, --last), v->elemSize);
+        __sift_down(v, first, last, cmp, first);
+    }
+}
diff --git a/rmutil/heap.h b/rmutil/heap.h
new file mode 100644
index 0000000..b49efce
--- /dev/null
+++ b/rmutil/heap.h
@@ -0,0 +1,38 @@
+#ifndef __HEAP_H__
+#define __HEAP_H__
+
+#include "vector.h"
+
+
+/* Make heap from range
+ * Rearranges the elements in the range [first,last) in such a way that they form a heap.
+ * A heap is a way to organize the elements of a range that allows for fast retrieval of the element with the highest
+ * value at any moment (with pop_heap), even repeatedly, while allowing for fast insertion of new elements (with
+ * push_heap).
+ * The element with the highest value is always pointed by first. The order of the other elements depends on the
+ * particular implementation, but it is consistent throughout all heap-related functions of this header.
+ * The elements are compared using cmp.
+ */
+void Make_Heap(Vector *v, size_t first, size_t last, int (*cmp)(void *, void *));
+
+
+/* Push element into heap range
+ * Given a heap in the range [first,last-1), this function extends the range considered a heap to [first,last) by
+ * placing the value in (last-1) into its corresponding location within it.
+ * A range can be organized into a heap by calling make_heap. After that, its heap properties are preserved if elements
+ * are added and removed from it using push_heap and pop_heap, respectively.
+ */
+void Heap_Push(Vector *v, size_t first, size_t last, int (*cmp)(void *, void *));
+
+
+/* Pop element from heap range
+ * Rearranges the elements in the heap range [first,last) in such a way that the part considered a heap is shortened
+ * by one: The element with the highest value is moved to (last-1).
+ * While the element with the highest value is moved from first to (last-1) (which now is out of the heap), the other
+ * elements are reorganized in such a way that the range [first,last-1) preserves the properties of a heap.
+ * A range can be organized into a heap by calling make_heap. After that, its heap properties are preserved if elements
+ * are added and removed from it using push_heap and pop_heap, respectively.
+ */
+void Heap_Pop(Vector *v, size_t first, size_t last, int (*cmp)(void *, void *));
+
+#endif //__HEAP_H__
diff --git a/rmutil/logging.h b/rmutil/logging.h
new file mode 100644
index 0000000..ed92cb3
--- /dev/null
+++ b/rmutil/logging.h
@@ -0,0 +1,11 @@
+#ifndef __RMUTIL_LOGGING_H__
+#define __RMUTIL_LOGGING_H__
+
+/* Convenience macros for redis logging */
+
+#define RM_LOG_DEBUG(ctx, ...) RedisModule_Log(ctx, "debug", __VA_ARGS__)
+#define RM_LOG_VERBOSE(ctx, ...) RedisModule_Log(ctx, "verbose", __VA_ARGS__)
+#define RM_LOG_NOTICE(ctx, ...) RedisModule_Log(ctx, "notice", __VA_ARGS__)
+#define RM_LOG_WARNING(ctx, ...) RedisModule_Log(ctx, "warning", __VA_ARGS__)
+
+#endif
\ No newline at end of file
diff --git a/rmutil/periodic.c b/rmutil/periodic.c
new file mode 100644
index 0000000..dbddceb
--- /dev/null
+++ b/rmutil/periodic.c
@@ -0,0 +1,88 @@
+#define REDISMODULE_EXPERIMENTAL_API
+#include "periodic.h"
+#include <pthread.h>
+#include <stdlib.h>
+#include <errno.h>
+
+typedef struct RMUtilTimer {
+  RMutilTimerFunc cb;
+  RMUtilTimerTerminationFunc onTerm;
+  void *privdata;
+  struct timespec interval;
+  pthread_t thread;
+  pthread_mutex_t lock;
+  pthread_cond_t cond;
+} RMUtilTimer;
+
+static struct timespec timespecAdd(struct timespec *a, struct timespec *b) {
+  struct timespec ret;
+  ret.tv_sec = a->tv_sec + b->tv_sec;
+
+  long long ns = a->tv_nsec + b->tv_nsec;
+  ret.tv_sec += ns / 1000000000;
+  ret.tv_nsec = ns % 1000000000;
+  return ret;
+}
+
+static void *rmutilTimer_Loop(void *ctx) {
+  RMUtilTimer *tm = ctx;
+
+  int rc = ETIMEDOUT;
+  struct timespec ts;
+
+  pthread_mutex_lock(&tm->lock);
+  while (rc != 0) {
+    clock_gettime(CLOCK_REALTIME, &ts);
+    struct timespec timeout = timespecAdd(&ts, &tm->interval);
+    if ((rc = pthread_cond_timedwait(&tm->cond, &tm->lock, &timeout)) == ETIMEDOUT) {
+
+      // Create a thread safe context if we're running inside redis
+      RedisModuleCtx *rctx = NULL;
+      if (RedisModule_GetThreadSafeContext) rctx = RedisModule_GetThreadSafeContext(NULL);
+
+      // call our callback...
+      tm->cb(rctx, tm->privdata);
+
+      // If needed - free the thread safe context.
+      // It's up to the user to decide whether automemory is active there
+      if (rctx) RedisModule_FreeThreadSafeContext(rctx);
+    }
+    if (rc == EINVAL) {
+      perror("Error waiting for condition");
+      break;
+    }
+  }
+
+  // call the termination callback if needed
+  if (tm->onTerm != NULL) {
+    tm->onTerm(tm->privdata);
+  }
+
+  // free resources associated with the timer
+  pthread_cond_destroy(&tm->cond);
+  free(tm);
+
+  return NULL;
+}
+
+/* set a new frequency for the timer. This will take effect AFTER the next trigger */
+void RMUtilTimer_SetInterval(struct RMUtilTimer *t, struct timespec newInterval) {
+  t->interval = newInterval;
+}
+
+RMUtilTimer *RMUtil_NewPeriodicTimer(RMutilTimerFunc cb, RMUtilTimerTerminationFunc onTerm,
+                                     void *privdata, struct timespec interval) {
+  RMUtilTimer *ret = malloc(sizeof(*ret));
+  *ret = (RMUtilTimer){
+      .privdata = privdata, .interval = interval, .cb = cb, .onTerm = onTerm,
+  };
+  pthread_cond_init(&ret->cond, NULL);
+  pthread_mutex_init(&ret->lock, NULL);
+
+  pthread_create(&ret->thread, NULL, rmutilTimer_Loop, ret);
+  return ret;
+}
+
+int RMUtilTimer_Terminate(struct RMUtilTimer *t) {
+  return pthread_cond_signal(&t->cond);
+}
diff --git a/rmutil/periodic.h b/rmutil/periodic.h
new file mode 100644
index 0000000..6740072
--- /dev/null
+++ b/rmutil/periodic.h
@@ -0,0 +1,46 @@
+#ifndef RMUTIL_PERIODIC_H_
+#define RMUTIL_PERIODIC_H_
+#include <time.h>
+#include <redismodule.h>
+
+/** periodic.h - Utility periodic timer running a task repeatedly every given time interval */
+
+/* RMUtilTimer - opaque context for the timer */
+struct RMUtilTimer;
+
+/* RMutilTimerFunc - callback type for timer tasks. The ctx is a thread-safe redis module context
+ * that should be locked/unlocked by the callback when running stuff against redis. privdata is
+ * pre-existing private data */
+typedef void (*RMutilTimerFunc)(RedisModuleCtx *ctx, void *privdata);
+
+typedef void (*RMUtilTimerTerminationFunc)(void *privdata);
+
+/* Create and start a new periodic timer. Each timer has its own thread and can only be run and
+ * stopped once. The timer runs `cb` every `interval` with `privdata` passed to the callback. */
+struct RMUtilTimer *RMUtil_NewPeriodicTimer(RMutilTimerFunc cb, RMUtilTimerTerminationFunc onTerm,
+                                            void *privdata, struct timespec interval);
+
+/* set a new frequency for the timer. This will take effect AFTER the next trigger */
+void RMUtilTimer_SetInterval(struct RMUtilTimer *t, struct timespec newInterval);
+
+/* Stop the timer loop, call the termination callbck to free up any resources linked to the timer,
+ * and free the timer after stopping.
+ *
+ * This function doesn't wait for the thread to terminate, as it may cause a race condition if the
+ * timer's callback is waiting for the redis global lock.
+ * Instead you should make sure any resources are freed by the callback after the thread loop is
+ * finished.
+ *
+ * The timer is freed automatically, so the callback doesn't need to do anything about it.
+ * The callback gets the timer's associated privdata as its argument.
+ *
+ * If no callback is specified we do not free up privdata. If privdata is NULL we still call the
+ * callback, as it may log stuff or free global resources.
+ */
+int RMUtilTimer_Terminate(struct RMUtilTimer *t);
+
+/* DEPRECATED - do not use this function (well now you can't), use terminate instead
+    Free the timer context. The caller should be responsible for freeing the private data at this
+ * point */
+// void RMUtilTimer_Free(struct RMUtilTimer *t);
+#endif
\ No newline at end of file
diff --git a/rmutil/priority_queue.c b/rmutil/priority_queue.c
new file mode 100644
index 0000000..5c16c08
--- /dev/null
+++ b/rmutil/priority_queue.c
@@ -0,0 +1,36 @@
+#include "priority_queue.h"
+#include "heap.h"
+
+PriorityQueue *__newPriorityQueueSize(size_t elemSize, size_t cap, int (*cmp)(void *, void *)) {
+    PriorityQueue *pq = malloc(sizeof(PriorityQueue));
+    pq->v = __newVectorSize(elemSize, cap);
+    pq->cmp = cmp;
+    return pq;
+}
+
+inline size_t Priority_Queue_Size(PriorityQueue *pq) {
+    return Vector_Size(pq->v);
+}
+
+inline int Priority_Queue_Top(PriorityQueue *pq, void *ptr) {
+    return Vector_Get(pq->v, 0, ptr);
+}
+
+inline size_t __priority_Queue_PushPtr(PriorityQueue *pq, void *elem) {
+    size_t top = __vector_PushPtr(pq->v, elem);
+    Heap_Push(pq->v, 0, top, pq->cmp);
+    return top;
+}
+
+inline void Priority_Queue_Pop(PriorityQueue *pq) {
+    if (pq->v->top == 0) {
+        return;
+    }
+    Heap_Pop(pq->v, 0, pq->v->top, pq->cmp);
+    pq->v->top--;
+}
+
+void Priority_Queue_Free(PriorityQueue *pq) {
+    Vector_Free(pq->v);
+    free(pq);
+}
diff --git a/rmutil/priority_queue.h b/rmutil/priority_queue.h
new file mode 100644
index 0000000..89f8c73
--- /dev/null
+++ b/rmutil/priority_queue.h
@@ -0,0 +1,55 @@
+#ifndef __PRIORITY_QUEUE_H__
+#define __PRIORITY_QUEUE_H__
+
+#include "vector.h"
+
+/* Priority queue
+ * Priority queues are designed such that its first element is always the greatest of the elements it contains.
+ * This context is similar to a heap, where elements can be inserted at any moment, and only the max heap element can be
+ * retrieved (the one at the top in the priority queue).
+ * Priority queues are implemented as Vectors. Elements are popped from the "back" of Vector, which is known as the top
+ * of the priority queue.
+ */
+typedef struct {
+    Vector *v;
+
+    int (*cmp)(void *, void *);
+} PriorityQueue;
+
+/* Construct priority queue
+ * Constructs a priority_queue container adaptor object.
+ */
+PriorityQueue *__newPriorityQueueSize(size_t elemSize, size_t cap, int (*cmp)(void *, void *));
+
+#define NewPriorityQueue(type, cap, cmp) __newPriorityQueueSize(sizeof(type), cap, cmp)
+
+/* Return size
+ * Returns the number of elements in the priority_queue.
+ */
+size_t Priority_Queue_Size(PriorityQueue *pq);
+
+/* Access top element
+ * Copy the top element in the priority_queue to ptr.
+ * The top element is the element that compares higher in the priority_queue.
+ */
+int Priority_Queue_Top(PriorityQueue *pq, void *ptr);
+
+/* Insert element
+ * Inserts a new element in the priority_queue.
+ */
+size_t __priority_Queue_PushPtr(PriorityQueue *pq, void *elem);
+
+#define Priority_Queue_Push(pq, elem) __priority_Queue_PushPtr(pq, &(typeof(elem)){elem})
+
+/* Remove top element
+ * Removes the element on top of the priority_queue, effectively reducing its size by one. The element removed is the
+ * one with the highest value.
+ * The value of this element can be retrieved before being popped by calling Priority_Queue_Top.
+ */
+void Priority_Queue_Pop(PriorityQueue *pq);
+
+/* free the priority queue and the underlying data. Does not release its elements if
+ * they are pointers */
+void Priority_Queue_Free(PriorityQueue *pq);
+
+#endif //__PRIORITY_QUEUE_H__
diff --git a/rmutil/sds.c b/rmutil/sds.c
new file mode 100644
index 0000000..e3dd673
--- /dev/null
+++ b/rmutil/sds.c
@@ -0,0 +1,1274 @@
+/* SDSLib 2.0 -- A C dynamic strings library
+ *
+ * Copyright (c) 2006-2015, Salvatore Sanfilippo <antirez at gmail dot com>
+ * Copyright (c) 2015, Oran Agra
+ * Copyright (c) 2015, Redis Labs, Inc
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *   * Neither the name of Redis nor the names of its contributors may be used
+ *     to endorse or promote products derived from this software without
+ *     specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <assert.h>
+#include "sds.h"
+#include "sdsalloc.h"
+
+static inline int sdsHdrSize(char type) {
+    switch(type&SDS_TYPE_MASK) {
+        case SDS_TYPE_5:
+            return sizeof(struct sdshdr5);
+        case SDS_TYPE_8:
+            return sizeof(struct sdshdr8);
+        case SDS_TYPE_16:
+            return sizeof(struct sdshdr16);
+        case SDS_TYPE_32:
+            return sizeof(struct sdshdr32);
+        case SDS_TYPE_64:
+            return sizeof(struct sdshdr64);
+    }
+    return 0;
+}
+
+static inline char sdsReqType(size_t string_size) {
+    if (string_size < 32)
+        return SDS_TYPE_5;
+    if (string_size < 0xff)
+        return SDS_TYPE_8;
+    if (string_size < 0xffff)
+        return SDS_TYPE_16;
+    if (string_size < 0xffffffff)
+        return SDS_TYPE_32;
+    return SDS_TYPE_64;
+}
+
+/* Create a new sds string with the content specified by the 'init' pointer
+ * and 'initlen'.
+ * If NULL is used for 'init' the string is initialized with zero bytes.
+ *
+ * The string is always null-termined (all the sds strings are, always) so
+ * even if you create an sds string with:
+ *
+ * mystring = sdsnewlen("abc",3);
+ *
+ * You can print the string with printf() as there is an implicit \0 at the
+ * end of the string. However the string is binary safe and can contain
+ * \0 characters in the middle, as the length is stored in the sds header. */
+sds sdsnewlen(const void *init, size_t initlen) {
+    void *sh;
+    sds s;
+    char type = sdsReqType(initlen);
+    /* Empty strings are usually created in order to append. Use type 8
+     * since type 5 is not good at this. */
+    if (type == SDS_TYPE_5 && initlen == 0) type = SDS_TYPE_8;
+    int hdrlen = sdsHdrSize(type);
+    unsigned char *fp; /* flags pointer. */
+
+    sh = s_malloc(hdrlen+initlen+1);
+    if (!init)
+        memset(sh, 0, hdrlen+initlen+1);
+    if (sh == NULL) return NULL;
+    s = (char*)sh+hdrlen;
+    fp = ((unsigned char*)s)-1;
+    switch(type) {
+        case SDS_TYPE_5: {
+            *fp = type | (initlen << SDS_TYPE_BITS);
+            break;
+        }
+        case SDS_TYPE_8: {
+            SDS_HDR_VAR(8,s);
+            sh->len = initlen;
+            sh->alloc = initlen;
+            *fp = type;
+            break;
+        }
+        case SDS_TYPE_16: {
+            SDS_HDR_VAR(16,s);
+            sh->len = initlen;
+            sh->alloc = initlen;
+            *fp = type;
+            break;
+        }
+        case SDS_TYPE_32: {
+            SDS_HDR_VAR(32,s);
+            sh->len = initlen;
+            sh->alloc = initlen;
+            *fp = type;
+            break;
+        }
+        case SDS_TYPE_64: {
+            SDS_HDR_VAR(64,s);
+            sh->len = initlen;
+            sh->alloc = initlen;
+            *fp = type;
+            break;
+        }
+    }
+    if (initlen && init)
+        memcpy(s, init, initlen);
+    s[initlen] = '\0';
+    return s;
+}
+
+/* Create an empty (zero length) sds string. Even in this case the string
+ * always has an implicit null term. */
+sds sdsempty(void) {
+    return sdsnewlen("",0);
+}
+
+/* Create a new sds string starting from a null terminated C string. */
+sds sdsnew(const char *init) {
+    size_t initlen = (init == NULL) ? 0 : strlen(init);
+    return sdsnewlen(init, initlen);
+}
+
+/* Duplicate an sds string. */
+sds sdsdup(const sds s) {
+    return sdsnewlen(s, sdslen(s));
+}
+
+/* Free an sds string. No operation is performed if 's' is NULL. */
+void sdsfree(sds s) {
+    if (s == NULL) return;
+    s_free((char*)s-sdsHdrSize(s[-1]));
+}
+
+/* Set the sds string length to the length as obtained with strlen(), so
+ * considering as content only up to the first null term character.
+ *
+ * This function is useful when the sds string is hacked manually in some
+ * way, like in the following example:
+ *
+ * s = sdsnew("foobar");
+ * s[2] = '\0';
+ * sdsupdatelen(s);
+ * printf("%d\n", sdslen(s));
+ *
+ * The output will be "2", but if we comment out the call to sdsupdatelen()
+ * the output will be "6" as the string was modified but the logical length
+ * remains 6 bytes. */
+void sdsupdatelen(sds s) {
+    int reallen = strlen(s);
+    sdssetlen(s, reallen);
+}
+
+/* Modify an sds string in-place to make it empty (zero length).
+ * However all the existing buffer is not discarded but set as free space
+ * so that next append operations will not require allocations up to the
+ * number of bytes previously available. */
+void sdsclear(sds s) {
+    sdssetlen(s, 0);
+    s[0] = '\0';
+}
+
+/* Enlarge the free space at the end of the sds string so that the caller
+ * is sure that after calling this function can overwrite up to addlen
+ * bytes after the end of the string, plus one more byte for nul term.
+ *
+ * Note: this does not change the *length* of the sds string as returned
+ * by sdslen(), but only the free buffer space we have. */
+sds sdsMakeRoomFor(sds s, size_t addlen) {
+    void *sh, *newsh;
+    size_t avail = sdsavail(s);
+    size_t len, newlen;
+    char type, oldtype = s[-1] & SDS_TYPE_MASK;
+    int hdrlen;
+
+    /* Return ASAP if there is enough space left. */
+    if (avail >= addlen) return s;
+
+    len = sdslen(s);
+    sh = (char*)s-sdsHdrSize(oldtype);
+    newlen = (len+addlen);
+    if (newlen < SDS_MAX_PREALLOC)
+        newlen *= 2;
+    else
+        newlen += SDS_MAX_PREALLOC;
+
+    type = sdsReqType(newlen);
+
+    /* Don't use type 5: the user is appending to the string and type 5 is
+     * not able to remember empty space, so sdsMakeRoomFor() must be called
+     * at every appending operation. */
+    if (type == SDS_TYPE_5) type = SDS_TYPE_8;
+
+    hdrlen = sdsHdrSize(type);
+    if (oldtype==type) {
+        newsh = s_realloc(sh, hdrlen+newlen+1);
+        if (newsh == NULL) return NULL;
+        s = (char*)newsh+hdrlen;
+    } else {
+        /* Since the header size changes, need to move the string forward,
+         * and can't use realloc */
+        newsh = s_malloc(hdrlen+newlen+1);
+        if (newsh == NULL) return NULL;
+        memcpy((char*)newsh+hdrlen, s, len+1);
+        s_free(sh);
+        s = (char*)newsh+hdrlen;
+        s[-1] = type;
+        sdssetlen(s, len);
+    }
+    sdssetalloc(s, newlen);
+    return s;
+}
+
+/* Reallocate the sds string so that it has no free space at the end. The
+ * contained string remains not altered, but next concatenation operations
+ * will require a reallocation.
+ *
+ * After the call, the passed sds string is no longer valid and all the
+ * references must be substituted with the new pointer returned by the call. */
+sds sdsRemoveFreeSpace(sds s) {
+    void *sh, *newsh;
+    char type, oldtype = s[-1] & SDS_TYPE_MASK;
+    int hdrlen;
+    size_t len = sdslen(s);
+    sh = (char*)s-sdsHdrSize(oldtype);
+
+    type = sdsReqType(len);
+    hdrlen = sdsHdrSize(type);
+    if (oldtype==type) {
+        newsh = s_realloc(sh, hdrlen+len+1);
+        if (newsh == NULL) return NULL;
+        s = (char*)newsh+hdrlen;
+    } else {
+        newsh = s_malloc(hdrlen+len+1);
+        if (newsh == NULL) return NULL;
+        memcpy((char*)newsh+hdrlen, s, len+1);
+        s_free(sh);
+        s = (char*)newsh+hdrlen;
+        s[-1] = type;
+        sdssetlen(s, len);
+    }
+    sdssetalloc(s, len);
+    return s;
+}
+
+/* Return the total size of the allocation of the specifed sds string,
+ * including:
+ * 1) The sds header before the pointer.
+ * 2) The string.
+ * 3) The free buffer at the end if any.
+ * 4) The implicit null term.
+ */
+size_t sdsAllocSize(sds s) {
+    size_t alloc = sdsalloc(s);
+    return sdsHdrSize(s[-1])+alloc+1;
+}
+
+/* Return the pointer of the actual SDS allocation (normally SDS strings
+ * are referenced by the start of the string buffer). */
+void *sdsAllocPtr(sds s) {
+    return (void*) (s-sdsHdrSize(s[-1]));
+}
+
+/* Increment the sds length and decrements the left free space at the
+ * end of the string according to 'incr'. Also set the null term
+ * in the new end of the string.
+ *
+ * This function is used in order to fix the string length after the
+ * user calls sdsMakeRoomFor(), writes something after the end of
+ * the current string, and finally needs to set the new length.
+ *
+ * Note: it is possible to use a negative increment in order to
+ * right-trim the string.
+ *
+ * Usage example:
+ *
+ * Using sdsIncrLen() and sdsMakeRoomFor() it is possible to mount the
+ * following schema, to cat bytes coming from the kernel to the end of an
+ * sds string without copying into an intermediate buffer:
+ *
+ * oldlen = sdslen(s);
+ * s = sdsMakeRoomFor(s, BUFFER_SIZE);
+ * nread = read(fd, s+oldlen, BUFFER_SIZE);
+ * ... check for nread <= 0 and handle it ...
+ * sdsIncrLen(s, nread);
+ */
+void sdsIncrLen(sds s, int incr) {
+    unsigned char flags = s[-1];
+    size_t len;
+    switch(flags&SDS_TYPE_MASK) {
+        case SDS_TYPE_5: {
+            unsigned char *fp = ((unsigned char*)s)-1;
+            unsigned char oldlen = SDS_TYPE_5_LEN(flags);
+            assert((incr > 0 && oldlen+incr < 32) || (incr < 0 && oldlen >= (unsigned int)(-incr)));
+            *fp = SDS_TYPE_5 | ((oldlen+incr) << SDS_TYPE_BITS);
+            len = oldlen+incr;
+            break;
+        }
+        case SDS_TYPE_8: {
+            SDS_HDR_VAR(8,s);
+            assert((incr >= 0 && sh->alloc-sh->len >= incr) || (incr < 0 && sh->len >= (unsigned int)(-incr)));
+            len = (sh->len += incr);
+            break;
+        }
+        case SDS_TYPE_16: {
+            SDS_HDR_VAR(16,s);
+            assert((incr >= 0 && sh->alloc-sh->len >= incr) || (incr < 0 && sh->len >= (unsigned int)(-incr)));
+            len = (sh->len += incr);
+            break;
+        }
+        case SDS_TYPE_32: {
+            SDS_HDR_VAR(32,s);
+            assert((incr >= 0 && sh->alloc-sh->len >= (unsigned int)incr) || (incr < 0 && sh->len >= (unsigned int)(-incr)));
+            len = (sh->len += incr);
+            break;
+        }
+        case SDS_TYPE_64: {
+            SDS_HDR_VAR(64,s);
+            assert((incr >= 0 && sh->alloc-sh->len >= (uint64_t)incr) || (incr < 0 && sh->len >= (uint64_t)(-incr)));
+            len = (sh->len += incr);
+            break;
+        }
+        default: len = 0; /* Just to avoid compilation warnings. */
+    }
+    s[len] = '\0';
+}
+
+/* Grow the sds to have the specified length. Bytes that were not part of
+ * the original length of the sds will be set to zero.
+ *
+ * if the specified length is smaller than the current length, no operation
+ * is performed. */
+sds sdsgrowzero(sds s, size_t len) {
+    size_t curlen = sdslen(s);
+
+    if (len <= curlen) return s;
+    s = sdsMakeRoomFor(s,len-curlen);
+    if (s == NULL) return NULL;
+
+    /* Make sure added region doesn't contain garbage */
+    memset(s+curlen,0,(len-curlen+1)); /* also set trailing \0 byte */
+    sdssetlen(s, len);
+    return s;
+}
+
+/* Append the specified binary-safe string pointed by 't' of 'len' bytes to the
+ * end of the specified sds string 's'.
+ *
+ * After the call, the passed sds string is no longer valid and all the
+ * references must be substituted with the new pointer returned by the call. */
+sds sdscatlen(sds s, const void *t, size_t len) {
+    size_t curlen = sdslen(s);
+
+    s = sdsMakeRoomFor(s,len);
+    if (s == NULL) return NULL;
+    memcpy(s+curlen, t, len);
+    sdssetlen(s, curlen+len);
+    s[curlen+len] = '\0';
+    return s;
+}
+
+/* Append the specified null termianted C string to the sds string 's'.
+ *
+ * After the call, the passed sds string is no longer valid and all the
+ * references must be substituted with the new pointer returned by the call. */
+sds sdscat(sds s, const char *t) {
+    return sdscatlen(s, t, strlen(t));
+}
+
+/* Append the specified sds 't' to the existing sds 's'.
+ *
+ * After the call, the modified sds string is no longer valid and all the
+ * references must be substituted with the new pointer returned by the call. */
+sds sdscatsds(sds s, const sds t) {
+    return sdscatlen(s, t, sdslen(t));
+}
+
+/* Destructively modify the sds string 's' to hold the specified binary
+ * safe string pointed by 't' of length 'len' bytes. */
+sds sdscpylen(sds s, const char *t, size_t len) {
+    if (sdsalloc(s) < len) {
+        s = sdsMakeRoomFor(s,len-sdslen(s));
+        if (s == NULL) return NULL;
+    }
+    memcpy(s, t, len);
+    s[len] = '\0';
+    sdssetlen(s, len);
+    return s;
+}
+
+/* Like sdscpylen() but 't' must be a null-termined string so that the length
+ * of the string is obtained with strlen(). */
+sds sdscpy(sds s, const char *t) {
+    return sdscpylen(s, t, strlen(t));
+}
+
+/* Helper for sdscatlonglong() doing the actual number -> string
+ * conversion. 's' must point to a string with room for at least
+ * SDS_LLSTR_SIZE bytes.
+ *
+ * The function returns the length of the null-terminated string
+ * representation stored at 's'. */
+#define SDS_LLSTR_SIZE 21
+int sdsll2str(char *s, long long value) {
+    char *p, aux;
+    unsigned long long v;
+    size_t l;
+
+    /* Generate the string representation, this method produces
+     * an reversed string. */
+    v = (value < 0) ? -value : value;
+    p = s;
+    do {
+        *p++ = '0'+(v%10);
+        v /= 10;
+    } while(v);
+    if (value < 0) *p++ = '-';
+
+    /* Compute length and add null term. */
+    l = p-s;
+    *p = '\0';
+
+    /* Reverse the string. */
+    p--;
+    while(s < p) {
+        aux = *s;
+        *s = *p;
+        *p = aux;
+        s++;
+        p--;
+    }
+    return l;
+}
+
+/* Identical sdsll2str(), but for unsigned long long type. */
+int sdsull2str(char *s, unsigned long long v) {
+    char *p, aux;
+    size_t l;
+
+    /* Generate the string representation, this method produces
+     * an reversed string. */
+    p = s;
+    do {
+        *p++ = '0'+(v%10);
+        v /= 10;
+    } while(v);
+
+    /* Compute length and add null term. */
+    l = p-s;
+    *p = '\0';
+
+    /* Reverse the string. */
+    p--;
+    while(s < p) {
+        aux = *s;
+        *s = *p;
+        *p = aux;
+        s++;
+        p--;
+    }
+    return l;
+}
+
+/* Create an sds string from a long long value. It is much faster than:
+ *
+ * sdscatprintf(sdsempty(),"%lld\n", value);
+ */
+sds sdsfromlonglong(long long value) {
+    char buf[SDS_LLSTR_SIZE];
+    int len = sdsll2str(buf,value);
+
+    return sdsnewlen(buf,len);
+}
+
+/* Like sdscatprintf() but gets va_list instead of being variadic. */
+sds sdscatvprintf(sds s, const char *fmt, va_list ap) {
+    va_list cpy;
+    char staticbuf[1024], *buf = staticbuf, *t;
+    size_t buflen = strlen(fmt)*2;
+
+    /* We try to start using a static buffer for speed.
+     * If not possible we revert to heap allocation. */
+    if (buflen > sizeof(staticbuf)) {
+        buf = s_malloc(buflen);
+        if (buf == NULL) return NULL;
+    } else {
+        buflen = sizeof(staticbuf);
+    }
+
+    /* Try with buffers two times bigger every time we fail to
+     * fit the string in the current buffer size. */
+    while(1) {
+        buf[buflen-2] = '\0';
+        va_copy(cpy,ap);
+        vsnprintf(buf, buflen, fmt, cpy);
+        va_end(cpy);
+        if (buf[buflen-2] != '\0') {
+            if (buf != staticbuf) s_free(buf);
+            buflen *= 2;
+            buf = s_malloc(buflen);
+            if (buf == NULL) return NULL;
+            continue;
+        }
+        break;
+    }
+
+    /* Finally concat the obtained string to the SDS string and return it. */
+    t = sdscat(s, buf);
+    if (buf != staticbuf) s_free(buf);
+    return t;
+}
+
+/* Append to the sds string 's' a string obtained using printf-alike format
+ * specifier.
+ *
+ * After the call, the modified sds string is no longer valid and all the
+ * references must be substituted with the new pointer returned by the call.
+ *
+ * Example:
+ *
+ * s = sdsnew("Sum is: ");
+ * s = sdscatprintf(s,"%d+%d = %d",a,b,a+b).
+ *
+ * Often you need to create a string from scratch with the printf-alike
+ * format. When this is the need, just use sdsempty() as the target string:
+ *
+ * s = sdscatprintf(sdsempty(), "... your format ...", args);
+ */
+sds sdscatprintf(sds s, const char *fmt, ...) {
+    va_list ap;
+    char *t;
+    va_start(ap, fmt);
+    t = sdscatvprintf(s,fmt,ap);
+    va_end(ap);
+    return t;
+}
+
+/* This function is similar to sdscatprintf, but much faster as it does
+ * not rely on sprintf() family functions implemented by the libc that
+ * are often very slow. Moreover directly handling the sds string as
+ * new data is concatenated provides a performance improvement.
+ *
+ * However this function only handles an incompatible subset of printf-alike
+ * format specifiers:
+ *
+ * %s - C String
+ * %S - SDS string
+ * %i - signed int
+ * %I - 64 bit signed integer (long long, int64_t)
+ * %u - unsigned int
+ * %U - 64 bit unsigned integer (unsigned long long, uint64_t)
+ * %% - Verbatim "%" character.
+ */
+sds sdscatfmt(sds s, char const *fmt, ...) {
+    size_t initlen = sdslen(s);
+    const char *f = fmt;
+    int i;
+    va_list ap;
+
+    va_start(ap,fmt);
+    f = fmt;    /* Next format specifier byte to process. */
+    i = initlen; /* Position of the next byte to write to dest str. */
+    while(*f) {
+        char next, *str;
+        size_t l;
+        long long num;
+        unsigned long long unum;
+
+        /* Make sure there is always space for at least 1 char. */
+        if (sdsavail(s)==0) {
+            s = sdsMakeRoomFor(s,1);
+        }
+
+        switch(*f) {
+        case '%':
+            next = *(f+1);
+            f++;
+            switch(next) {
+            case 's':
+            case 'S':
+                str = va_arg(ap,char*);
+                l = (next == 's') ? strlen(str) : sdslen(str);
+                if (sdsavail(s) < l) {
+                    s = sdsMakeRoomFor(s,l);
+                }
+                memcpy(s+i,str,l);
+                sdsinclen(s,l);
+                i += l;
+                break;
+            case 'i':
+            case 'I':
+                if (next == 'i')
+                    num = va_arg(ap,int);
+                else
+                    num = va_arg(ap,long long);
+                {
+                    char buf[SDS_LLSTR_SIZE];
+                    l = sdsll2str(buf,num);
+                    if (sdsavail(s) < l) {
+                        s = sdsMakeRoomFor(s,l);
+                    }
+                    memcpy(s+i,buf,l);
+                    sdsinclen(s,l);
+                    i += l;
+                }
+                break;
+            case 'u':
+            case 'U':
+                if (next == 'u')
+                    unum = va_arg(ap,unsigned int);
+                else
+                    unum = va_arg(ap,unsigned long long);
+                {
+                    char buf[SDS_LLSTR_SIZE];
+                    l = sdsull2str(buf,unum);
+                    if (sdsavail(s) < l) {
+                        s = sdsMakeRoomFor(s,l);
+                    }
+                    memcpy(s+i,buf,l);
+                    sdsinclen(s,l);
+                    i += l;
+                }
+                break;
+            default: /* Handle %% and generally %<unknown>. */
+                s[i++] = next;
+                sdsinclen(s,1);
+                break;
+            }
+            break;
+        default:
+            s[i++] = *f;
+            sdsinclen(s,1);
+            break;
+        }
+        f++;
+    }
+    va_end(ap);
+
+    /* Add null-term */
+    s[i] = '\0';
+    return s;
+}
+
+/* Remove the part of the string from left and from right composed just of
+ * contiguous characters found in 'cset', that is a null terminted C string.
+ *
+ * After the call, the modified sds string is no longer valid and all the
+ * references must be substituted with the new pointer returned by the call.
+ *
+ * Example:
+ *
+ * s = sdsnew("AA...AA.a.aa.aHelloWorld     :::");
+ * s = sdstrim(s,"Aa. :");
+ * printf("%s\n", s);
+ *
+ * Output will be just "Hello World".
+ */
+sds sdstrim(sds s, const char *cset) {
+    char *start, *end, *sp, *ep;
+    size_t len;
+
+    sp = start = s;
+    ep = end = s+sdslen(s)-1;
+    while(sp <= end && strchr(cset, *sp)) sp++;
+    while(ep > sp && strchr(cset, *ep)) ep--;
+    len = (sp > ep) ? 0 : ((ep-sp)+1);
+    if (s != sp) memmove(s, sp, len);
+    s[len] = '\0';
+    sdssetlen(s,len);
+    return s;
+}
+
+/* Turn the string into a smaller (or equal) string containing only the
+ * substring specified by the 'start' and 'end' indexes.
+ *
+ * start and end can be negative, where -1 means the last character of the
+ * string, -2 the penultimate character, and so forth.
+ *
+ * The interval is inclusive, so the start and end characters will be part
+ * of the resulting string.
+ *
+ * The string is modified in-place.
+ *
+ * Example:
+ *
+ * s = sdsnew("Hello World");
+ * sdsrange(s,1,-1); => "ello World"
+ */
+void sdsrange(sds s, int start, int end) {
+    size_t newlen, len = sdslen(s);
+
+    if (len == 0) return;
+    if (start < 0) {
+        start = len+start;
+        if (start < 0) start = 0;
+    }
+    if (end < 0) {
+        end = len+end;
+        if (end < 0) end = 0;
+    }
+    newlen = (start > end) ? 0 : (end-start)+1;
+    if (newlen != 0) {
+        if (start >= (signed)len) {
+            newlen = 0;
+        } else if (end >= (signed)len) {
+            end = len-1;
+            newlen = (start > end) ? 0 : (end-start)+1;
+        }
+    } else {
+        start = 0;
+    }
+    if (start && newlen) memmove(s, s+start, newlen);
+    s[newlen] = 0;
+    sdssetlen(s,newlen);
+}
+
+/* Apply tolower() to every character of the sds string 's'. */
+void sdstolower(sds s) {
+    int len = sdslen(s), j;
+
+    for (j = 0; j < len; j++) s[j] = tolower(s[j]);
+}
+
+/* Apply toupper() to every character of the sds string 's'. */
+void sdstoupper(sds s) {
+    int len = sdslen(s), j;
+
+    for (j = 0; j < len; j++) s[j] = toupper(s[j]);
+}
+
+/* Compare two sds strings s1 and s2 with memcmp().
+ *
+ * Return value:
+ *
+ *     positive if s1 > s2.
+ *     negative if s1 < s2.
+ *     0 if s1 and s2 are exactly the same binary string.
+ *
+ * If two strings share exactly the same prefix, but one of the two has
+ * additional characters, the longer string is considered to be greater than
+ * the smaller one. */
+int sdscmp(const sds s1, const sds s2) {
+    size_t l1, l2, minlen;
+    int cmp;
+
+    l1 = sdslen(s1);
+    l2 = sdslen(s2);
+    minlen = (l1 < l2) ? l1 : l2;
+    cmp = memcmp(s1,s2,minlen);
+    if (cmp == 0) return l1-l2;
+    return cmp;
+}
+
+/* Split 's' with separator in 'sep'. An array
+ * of sds strings is returned. *count will be set
+ * by reference to the number of tokens returned.
+ *
+ * On out of memory, zero length string, zero length
+ * separator, NULL is returned.
+ *
+ * Note that 'sep' is able to split a string using
+ * a multi-character separator. For example
+ * sdssplit("foo_-_bar","_-_"); will return two
+ * elements "foo" and "bar".
+ *
+ * This version of the function is binary-safe but
+ * requires length arguments. sdssplit() is just the
+ * same function but for zero-terminated strings.
+ */
+sds *sdssplitlen(const char *s, int len, const char *sep, int seplen, int *count) {
+    int elements = 0, slots = 5, start = 0, j;
+    sds *tokens;
+
+    if (seplen < 1 || len < 0) return NULL;
+
+    tokens = s_malloc(sizeof(sds)*slots);
+    if (tokens == NULL) return NULL;
+
+    if (len == 0) {
+        *count = 0;
+        return tokens;
+    }
+    for (j = 0; j < (len-(seplen-1)); j++) {
+        /* make sure there is room for the next element and the final one */
+        if (slots < elements+2) {
+            sds *newtokens;
+
+            slots *= 2;
+            newtokens = s_realloc(tokens,sizeof(sds)*slots);
+            if (newtokens == NULL) goto cleanup;
+            tokens = newtokens;
+        }
+        /* search the separator */
+        if ((seplen == 1 && *(s+j) == sep[0]) || (memcmp(s+j,sep,seplen) == 0)) {
+            tokens[elements] = sdsnewlen(s+start,j-start);
+            if (tokens[elements] == NULL) goto cleanup;
+            elements++;
+            start = j+seplen;
+            j = j+seplen-1; /* skip the separator */
+        }
+    }
+    /* Add the final element. We are sure there is room in the tokens array. */
+    tokens[elements] = sdsnewlen(s+start,len-start);
+    if (tokens[elements] == NULL) goto cleanup;
+    elements++;
+    *count = elements;
+    return tokens;
+
+cleanup:
+    {
+        int i;
+        for (i = 0; i < elements; i++) sdsfree(tokens[i]);
+        s_free(tokens);
+        *count = 0;
+        return NULL;
+    }
+}
+
+/* Free the result returned by sdssplitlen(), or do nothing if 'tokens' is NULL. */
+void sdsfreesplitres(sds *tokens, int count) {
+    if (!tokens) return;
+    while(count--)
+        sdsfree(tokens[count]);
+    s_free(tokens);
+}
+
+/* Append to the sds string "s" an escaped string representation where
+ * all the non-printable characters (tested with isprint()) are turned into
+ * escapes in the form "\n\r\a...." or "\x<hex-number>".
+ *
+ * After the call, the modified sds string is no longer valid and all the
+ * references must be substituted with the new pointer returned by the call. */
+sds sdscatrepr(sds s, const char *p, size_t len) {
+    s = sdscatlen(s,"\"",1);
+    while(len--) {
+        switch(*p) {
+        case '\\':
+        case '"':
+            s = sdscatprintf(s,"\\%c",*p);
+            break;
+        case '\n': s = sdscatlen(s,"\\n",2); break;
+        case '\r': s = sdscatlen(s,"\\r",2); break;
+        case '\t': s = sdscatlen(s,"\\t",2); break;
+        case '\a': s = sdscatlen(s,"\\a",2); break;
+        case '\b': s = sdscatlen(s,"\\b",2); break;
+        default:
+            if (isprint(*p))
+                s = sdscatprintf(s,"%c",*p);
+            else
+                s = sdscatprintf(s,"\\x%02x",(unsigned char)*p);
+            break;
+        }
+        p++;
+    }
+    return sdscatlen(s,"\"",1);
+}
+
+/* Helper function for sdssplitargs() that returns non zero if 'c'
+ * is a valid hex digit. */
+int is_hex_digit(char c) {
+    return (c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') ||
+           (c >= 'A' && c <= 'F');
+}
+
+/* Helper function for sdssplitargs() that converts a hex digit into an
+ * integer from 0 to 15 */
+int hex_digit_to_int(char c) {
+    switch(c) {
+    case '0': return 0;
+    case '1': return 1;
+    case '2': return 2;
+    case '3': return 3;
+    case '4': return 4;
+    case '5': return 5;
+    case '6': return 6;
+    case '7': return 7;
+    case '8': return 8;
+    case '9': return 9;
+    case 'a': case 'A': return 10;
+    case 'b': case 'B': return 11;
+    case 'c': case 'C': return 12;
+    case 'd': case 'D': return 13;
+    case 'e': case 'E': return 14;
+    case 'f': case 'F': return 15;
+    default: return 0;
+    }
+}
+
+/* Split a line into arguments, where every argument can be in the
+ * following programming-language REPL-alike form:
+ *
+ * foo bar "newline are supported\n" and "\xff\x00otherstuff"
+ *
+ * The number of arguments is stored into *argc, and an array
+ * of sds is returned.
+ *
+ * The caller should free the resulting array of sds strings with
+ * sdsfreesplitres().
+ *
+ * Note that sdscatrepr() is able to convert back a string into
+ * a quoted string in the same format sdssplitargs() is able to parse.
+ *
+ * The function returns the allocated tokens on success, even when the
+ * input string is empty, or NULL if the input contains unbalanced
+ * quotes or closed quotes followed by non space characters
+ * as in: "foo"bar or "foo'
+ */
+sds *sdssplitargs(const char *line, int *argc) {
+    const char *p = line;
+    char *current = NULL;
+    char **vector = NULL;
+
+    *argc = 0;
+    while(1) {
+        /* skip blanks */
+        while(*p && isspace(*p)) p++;
+        if (*p) {
+            /* get a token */
+            int inq=0;  /* set to 1 if we are in "quotes" */
+            int insq=0; /* set to 1 if we are in 'single quotes' */
+            int done=0;
+
+            if (current == NULL) current = sdsempty();
+            while(!done) {
+                if (inq) {
+                    if (*p == '\\' && *(p+1) == 'x' &&
+                                             is_hex_digit(*(p+2)) &&
+                                             is_hex_digit(*(p+3)))
+                    {
+                        unsigned char byte;
+
+                        byte = (hex_digit_to_int(*(p+2))*16)+
+                                hex_digit_to_int(*(p+3));
+                        current = sdscatlen(current,(char*)&byte,1);
+                        p += 3;
+                    } else if (*p == '\\' && *(p+1)) {
+                        char c;
+
+                        p++;
+                        switch(*p) {
+                        case 'n': c = '\n'; break;
+                        case 'r': c = '\r'; break;
+                        case 't': c = '\t'; break;
+                        case 'b': c = '\b'; break;
+                        case 'a': c = '\a'; break;
+                        default: c = *p; break;
+                        }
+                        current = sdscatlen(current,&c,1);
+                    } else if (*p == '"') {
+                        /* closing quote must be followed by a space or
+                         * nothing at all. */
+                        if (*(p+1) && !isspace(*(p+1))) goto err;
+                        done=1;
+                    } else if (!*p) {
+                        /* unterminated quotes */
+                        goto err;
+                    } else {
+                        current = sdscatlen(current,p,1);
+                    }
+                } else if (insq) {
+                    if (*p == '\\' && *(p+1) == '\'') {
+                        p++;
+                        current = sdscatlen(current,"'",1);
+                    } else if (*p == '\'') {
+                        /* closing quote must be followed by a space or
+                         * nothing at all. */
+                        if (*(p+1) && !isspace(*(p+1))) goto err;
+                        done=1;
+                    } else if (!*p) {
+                        /* unterminated quotes */
+                        goto err;
+                    } else {
+                        current = sdscatlen(current,p,1);
+                    }
+                } else {
+                    switch(*p) {
+                    case ' ':
+                    case '\n':
+                    case '\r':
+                    case '\t':
+                    case '\0':
+                        done=1;
+                        break;
+                    case '"':
+                        inq=1;
+                        break;
+                    case '\'':
+                        insq=1;
+                        break;
+                    default:
+                        current = sdscatlen(current,p,1);
+                        break;
+                    }
+                }
+                if (*p) p++;
+            }
+            /* add the token to the vector */
+            vector = s_realloc(vector,((*argc)+1)*sizeof(char*));
+            vector[*argc] = current;
+            (*argc)++;
+            current = NULL;
+        } else {
+            /* Even on empty input string return something not NULL. */
+            if (vector == NULL) vector = s_malloc(sizeof(void*));
+            return vector;
+        }
+    }
+
+err:
+    while((*argc)--)
+        sdsfree(vector[*argc]);
+    s_free(vector);
+    if (current) sdsfree(current);
+    *argc = 0;
+    return NULL;
+}
+
+/* Modify the string substituting all the occurrences of the set of
+ * characters specified in the 'from' string to the corresponding character
+ * in the 'to' array.
+ *
+ * For instance: sdsmapchars(mystring, "ho", "01", 2)
+ * will have the effect of turning the string "hello" into "0ell1".
+ *
+ * The function returns the sds string pointer, that is always the same
+ * as the input pointer since no resize is needed. */
+sds sdsmapchars(sds s, const char *from, const char *to, size_t setlen) {
+    size_t j, i, l = sdslen(s);
+
+    for (j = 0; j < l; j++) {
+        for (i = 0; i < setlen; i++) {
+            if (s[j] == from[i]) {
+                s[j] = to[i];
+                break;
+            }
+        }
+    }
+    return s;
+}
+
+/* Join an array of C strings using the specified separator (also a C string).
+ * Returns the result as an sds string. */
+sds sdsjoin(char **argv, int argc, char *sep) {
+    sds join = sdsempty();
+    int j;
+
+    for (j = 0; j < argc; j++) {
+        join = sdscat(join, argv[j]);
+        if (j != argc-1) join = sdscat(join,sep);
+    }
+    return join;
+}
+
+/* Like sdsjoin, but joins an array of SDS strings. */
+sds sdsjoinsds(sds *argv, int argc, const char *sep, size_t seplen) {
+    sds join = sdsempty();
+    int j;
+
+    for (j = 0; j < argc; j++) {
+        join = sdscatsds(join, argv[j]);
+        if (j != argc-1) join = sdscatlen(join,sep,seplen);
+    }
+    return join;
+}
+
+/* Wrappers to the allocators used by SDS. Note that SDS will actually
+ * just use the macros defined into sdsalloc.h in order to avoid to pay
+ * the overhead of function calls. Here we define these wrappers only for
+ * the programs SDS is linked to, if they want to touch the SDS internals
+ * even if they use a different allocator. */
+void *sds_malloc(size_t size) { return s_malloc(size); }
+void *sds_realloc(void *ptr, size_t size) { return s_realloc(ptr,size); }
+void sds_free(void *ptr) { s_free(ptr); }
+
+#if defined(SDS_TEST_MAIN)
+#include <stdio.h>
+#include "testhelp.h"
+#include "limits.h"
+
+#define UNUSED(x) (void)(x)
+int sdsTest(void) {
+    {
+        sds x = sdsnew("foo"), y;
+
+        test_cond("Create a string and obtain the length",
+            sdslen(x) == 3 && memcmp(x,"foo\0",4) == 0)
+
+        sdsfree(x);
+        x = sdsnewlen("foo",2);
+        test_cond("Create a string with specified length",
+            sdslen(x) == 2 && memcmp(x,"fo\0",3) == 0)
+
+        x = sdscat(x,"bar");
+        test_cond("Strings concatenation",
+            sdslen(x) == 5 && memcmp(x,"fobar\0",6) == 0);
+
+        x = sdscpy(x,"a");
+        test_cond("sdscpy() against an originally longer string",
+            sdslen(x) == 1 && memcmp(x,"a\0",2) == 0)
+
+        x = sdscpy(x,"xyzxxxxxxxxxxyyyyyyyyyykkkkkkkkkk");
+        test_cond("sdscpy() against an originally shorter string",
+            sdslen(x) == 33 &&
+            memcmp(x,"xyzxxxxxxxxxxyyyyyyyyyykkkkkkkkkk\0",33) == 0)
+
+        sdsfree(x);
+        x = sdscatprintf(sdsempty(),"%d",123);
+        test_cond("sdscatprintf() seems working in the base case",
+            sdslen(x) == 3 && memcmp(x,"123\0",4) == 0)
+
+        sdsfree(x);
+        x = sdsnew("--");
+        x = sdscatfmt(x, "Hello %s World %I,%I--", "Hi!", LLONG_MIN,LLONG_MAX);
+        test_cond("sdscatfmt() seems working in the base case",
+            sdslen(x) == 60 &&
+            memcmp(x,"--Hello Hi! World -9223372036854775808,"
+                     "9223372036854775807--",60) == 0)
+        printf("[%s]\n",x);
+
+        sdsfree(x);
+        x = sdsnew("--");
+        x = sdscatfmt(x, "%u,%U--", UINT_MAX, ULLONG_MAX);
+        test_cond("sdscatfmt() seems working with unsigned numbers",
+            sdslen(x) == 35 &&
+            memcmp(x,"--4294967295,18446744073709551615--",35) == 0)
+
+        sdsfree(x);
+        x = sdsnew(" x ");
+        sdstrim(x," x");
+        test_cond("sdstrim() works when all chars match",
+            sdslen(x) == 0)
+
+        sdsfree(x);
+        x = sdsnew(" x ");
+        sdstrim(x," ");
+        test_cond("sdstrim() works when a single char remains",
+            sdslen(x) == 1 && x[0] == 'x')
+
+        sdsfree(x);
+        x = sdsnew("xxciaoyyy");
+        sdstrim(x,"xy");
+        test_cond("sdstrim() correctly trims characters",
+            sdslen(x) == 4 && memcmp(x,"ciao\0",5) == 0)
+
+        y = sdsdup(x);
+        sdsrange(y,1,1);
+        test_cond("sdsrange(...,1,1)",
+            sdslen(y) == 1 && memcmp(y,"i\0",2) == 0)
+
+        sdsfree(y);
+        y = sdsdup(x);
+        sdsrange(y,1,-1);
+        test_cond("sdsrange(...,1,-1)",
+            sdslen(y) == 3 && memcmp(y,"iao\0",4) == 0)
+
+        sdsfree(y);
+        y = sdsdup(x);
+        sdsrange(y,-2,-1);
+        test_cond("sdsrange(...,-2,-1)",
+            sdslen(y) == 2 && memcmp(y,"ao\0",3) == 0)
+
+        sdsfree(y);
+        y = sdsdup(x);
+        sdsrange(y,2,1);
+        test_cond("sdsrange(...,2,1)",
+            sdslen(y) == 0 && memcmp(y,"\0",1) == 0)
+
+        sdsfree(y);
+        y = sdsdup(x);
+        sdsrange(y,1,100);
+        test_cond("sdsrange(...,1,100)",
+            sdslen(y) == 3 && memcmp(y,"iao\0",4) == 0)
+
+        sdsfree(y);
+        y = sdsdup(x);
+        sdsrange(y,100,100);
+        test_cond("sdsrange(...,100,100)",
+            sdslen(y) == 0 && memcmp(y,"\0",1) == 0)
+
+        sdsfree(y);
+        sdsfree(x);
+        x = sdsnew("foo");
+        y = sdsnew("foa");
+        test_cond("sdscmp(foo,foa)", sdscmp(x,y) > 0)
+
+        sdsfree(y);
+        sdsfree(x);
+        x = sdsnew("bar");
+        y = sdsnew("bar");
+        test_cond("sdscmp(bar,bar)", sdscmp(x,y) == 0)
+
+        sdsfree(y);
+        sdsfree(x);
+        x = sdsnew("aar");
+        y = sdsnew("bar");
+        test_cond("sdscmp(bar,bar)", sdscmp(x,y) < 0)
+
+        sdsfree(y);
+        sdsfree(x);
+        x = sdsnewlen("\a\n\0foo\r",7);
+        y = sdscatrepr(sdsempty(),x,sdslen(x));
+        test_cond("sdscatrepr(...data...)",
+            memcmp(y,"\"\\a\\n\\x00foo\\r\"",15) == 0)
+
+        {
+            unsigned int oldfree;
+            char *p;
+            int step = 10, j, i;
+
+            sdsfree(x);
+            sdsfree(y);
+            x = sdsnew("0");
+            test_cond("sdsnew() free/len buffers", sdslen(x) == 1 && sdsavail(x) == 0);
+
+            /* Run the test a few times in order to hit the first two
+             * SDS header types. */
+            for (i = 0; i < 10; i++) {
+                int oldlen = sdslen(x);
+                x = sdsMakeRoomFor(x,step);
+                int type = x[-1]&SDS_TYPE_MASK;
+
+                test_cond("sdsMakeRoomFor() len", sdslen(x) == oldlen);
+                if (type != SDS_TYPE_5) {
+                    test_cond("sdsMakeRoomFor() free", sdsavail(x) >= step);
+                    oldfree = sdsavail(x);
+                }
+                p = x+oldlen;
+                for (j = 0; j < step; j++) {
+                    p[j] = 'A'+j;
+                }
+                sdsIncrLen(x,step);
+            }
+            test_cond("sdsMakeRoomFor() content",
+                memcmp("0ABCDEFGHIJABCDEFGHIJABCDEFGHIJABCDEFGHIJABCDEFGHIJABCDEFGHIJABCDEFGHIJABCDEFGHIJABCDEFGHIJABCDEFGHIJ",x,101) == 0);
+            test_cond("sdsMakeRoomFor() final length",sdslen(x)==101);
+
+            sdsfree(x);
+        }
+    }
+    test_report()
+    return 0;
+}
+#endif
+
+#ifdef SDS_TEST_MAIN
+int main(void) {
+    return sdsTest();
+}
+#endif
diff --git a/rmutil/sds.h b/rmutil/sds.h
new file mode 100644
index 0000000..394f8b5
--- /dev/null
+++ b/rmutil/sds.h
@@ -0,0 +1,273 @@
+/* SDSLib 2.0 -- A C dynamic strings library
+ *
+ * Copyright (c) 2006-2015, Salvatore Sanfilippo <antirez at gmail dot com>
+ * Copyright (c) 2015, Oran Agra
+ * Copyright (c) 2015, Redis Labs, Inc
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *   * Neither the name of Redis nor the names of its contributors may be used
+ *     to endorse or promote products derived from this software without
+ *     specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __SDS_H
+#define __SDS_H
+
+#define SDS_MAX_PREALLOC (1024*1024)
+
+#include <sys/types.h>
+#include <stdarg.h>
+#include <stdint.h>
+
+typedef char *sds;
+
+/* Note: sdshdr5 is never used, we just access the flags byte directly.
+ * However is here to document the layout of type 5 SDS strings. */
+struct __attribute__ ((__packed__)) sdshdr5 {
+    unsigned char flags; /* 3 lsb of type, and 5 msb of string length */
+    char buf[];
+};
+struct __attribute__ ((__packed__)) sdshdr8 {
+    uint8_t len; /* used */
+    uint8_t alloc; /* excluding the header and null terminator */
+    unsigned char flags; /* 3 lsb of type, 5 unused bits */
+    char buf[];
+};
+struct __attribute__ ((__packed__)) sdshdr16 {
+    uint16_t len; /* used */
+    uint16_t alloc; /* excluding the header and null terminator */
+    unsigned char flags; /* 3 lsb of type, 5 unused bits */
+    char buf[];
+};
+struct __attribute__ ((__packed__)) sdshdr32 {
+    uint32_t len; /* used */
+    uint32_t alloc; /* excluding the header and null terminator */
+    unsigned char flags; /* 3 lsb of type, 5 unused bits */
+    char buf[];
+};
+struct __attribute__ ((__packed__)) sdshdr64 {
+    uint64_t len; /* used */
+    uint64_t alloc; /* excluding the header and null terminator */
+    unsigned char flags; /* 3 lsb of type, 5 unused bits */
+    char buf[];
+};
+
+#define SDS_TYPE_5  0
+#define SDS_TYPE_8  1
+#define SDS_TYPE_16 2
+#define SDS_TYPE_32 3
+#define SDS_TYPE_64 4
+#define SDS_TYPE_MASK 7
+#define SDS_TYPE_BITS 3
+#define SDS_HDR_VAR(T,s) struct sdshdr##T *sh = (void*)((s)-(sizeof(struct sdshdr##T)));
+#define SDS_HDR(T,s) ((struct sdshdr##T *)((s)-(sizeof(struct sdshdr##T))))
+#define SDS_TYPE_5_LEN(f) ((f)>>SDS_TYPE_BITS)
+
+static inline size_t sdslen(const sds s) {
+    unsigned char flags = s[-1];
+    switch(flags&SDS_TYPE_MASK) {
+        case SDS_TYPE_5:
+            return SDS_TYPE_5_LEN(flags);
+        case SDS_TYPE_8:
+            return SDS_HDR(8,s)->len;
+        case SDS_TYPE_16:
+            return SDS_HDR(16,s)->len;
+        case SDS_TYPE_32:
+            return SDS_HDR(32,s)->len;
+        case SDS_TYPE_64:
+            return SDS_HDR(64,s)->len;
+    }
+    return 0;
+}
+
+static inline size_t sdsavail(const sds s) {
+    unsigned char flags = s[-1];
+    switch(flags&SDS_TYPE_MASK) {
+        case SDS_TYPE_5: {
+            return 0;
+        }
+        case SDS_TYPE_8: {
+            SDS_HDR_VAR(8,s);
+            return sh->alloc - sh->len;
+        }
+        case SDS_TYPE_16: {
+            SDS_HDR_VAR(16,s);
+            return sh->alloc - sh->len;
+        }
+        case SDS_TYPE_32: {
+            SDS_HDR_VAR(32,s);
+            return sh->alloc - sh->len;
+        }
+        case SDS_TYPE_64: {
+            SDS_HDR_VAR(64,s);
+            return sh->alloc - sh->len;
+        }
+    }
+    return 0;
+}
+
+static inline void sdssetlen(sds s, size_t newlen) {
+    unsigned char flags = s[-1];
+    switch(flags&SDS_TYPE_MASK) {
+        case SDS_TYPE_5:
+            {
+                unsigned char *fp = ((unsigned char*)s)-1;
+                *fp = SDS_TYPE_5 | (newlen << SDS_TYPE_BITS);
+            }
+            break;
+        case SDS_TYPE_8:
+            SDS_HDR(8,s)->len = newlen;
+            break;
+        case SDS_TYPE_16:
+            SDS_HDR(16,s)->len = newlen;
+            break;
+        case SDS_TYPE_32:
+            SDS_HDR(32,s)->len = newlen;
+            break;
+        case SDS_TYPE_64:
+            SDS_HDR(64,s)->len = newlen;
+            break;
+    }
+}
+
+static inline void sdsinclen(sds s, size_t inc) {
+    unsigned char flags = s[-1];
+    switch(flags&SDS_TYPE_MASK) {
+        case SDS_TYPE_5:
+            {
+                unsigned char *fp = ((unsigned char*)s)-1;
+                unsigned char newlen = SDS_TYPE_5_LEN(flags)+inc;
+                *fp = SDS_TYPE_5 | (newlen << SDS_TYPE_BITS);
+            }
+            break;
+        case SDS_TYPE_8:
+            SDS_HDR(8,s)->len += inc;
+            break;
+        case SDS_TYPE_16:
+            SDS_HDR(16,s)->len += inc;
+            break;
+        case SDS_TYPE_32:
+            SDS_HDR(32,s)->len += inc;
+            break;
+        case SDS_TYPE_64:
+            SDS_HDR(64,s)->len += inc;
+            break;
+    }
+}
+
+/* sdsalloc() = sdsavail() + sdslen() */
+static inline size_t sdsalloc(const sds s) {
+    unsigned char flags = s[-1];
+    switch(flags&SDS_TYPE_MASK) {
+        case SDS_TYPE_5:
+            return SDS_TYPE_5_LEN(flags);
+        case SDS_TYPE_8:
+            return SDS_HDR(8,s)->alloc;
+        case SDS_TYPE_16:
+            return SDS_HDR(16,s)->alloc;
+        case SDS_TYPE_32:
+            return SDS_HDR(32,s)->alloc;
+        case SDS_TYPE_64:
+            return SDS_HDR(64,s)->alloc;
+    }
+    return 0;
+}
+
+static inline void sdssetalloc(sds s, size_t newlen) {
+    unsigned char flags = s[-1];
+    switch(flags&SDS_TYPE_MASK) {
+        case SDS_TYPE_5:
+            /* Nothing to do, this type has no total allocation info. */
+            break;
+        case SDS_TYPE_8:
+            SDS_HDR(8,s)->alloc = newlen;
+            break;
+        case SDS_TYPE_16:
+            SDS_HDR(16,s)->alloc = newlen;
+            break;
+        case SDS_TYPE_32:
+            SDS_HDR(32,s)->alloc = newlen;
+            break;
+        case SDS_TYPE_64:
+            SDS_HDR(64,s)->alloc = newlen;
+            break;
+    }
+}
+
+sds sdsnewlen(const void *init, size_t initlen);
+sds sdsnew(const char *init);
+sds sdsempty(void);
+sds sdsdup(const sds s);
+void sdsfree(sds s);
+sds sdsgrowzero(sds s, size_t len);
+sds sdscatlen(sds s, const void *t, size_t len);
+sds sdscat(sds s, const char *t);
+sds sdscatsds(sds s, const sds t);
+sds sdscpylen(sds s, const char *t, size_t len);
+sds sdscpy(sds s, const char *t);
+
+sds sdscatvprintf(sds s, const char *fmt, va_list ap);
+#ifdef __GNUC__
+sds sdscatprintf(sds s, const char *fmt, ...)
+    __attribute__((format(printf, 2, 3)));
+#else
+sds sdscatprintf(sds s, const char *fmt, ...);
+#endif
+
+sds sdscatfmt(sds s, char const *fmt, ...);
+sds sdstrim(sds s, const char *cset);
+void sdsrange(sds s, int start, int end);
+void sdsupdatelen(sds s);
+void sdsclear(sds s);
+int sdscmp(const sds s1, const sds s2);
+sds *sdssplitlen(const char *s, int len, const char *sep, int seplen, int *count);
+void sdsfreesplitres(sds *tokens, int count);
+void sdstolower(sds s);
+void sdstoupper(sds s);
+sds sdsfromlonglong(long long value);
+sds sdscatrepr(sds s, const char *p, size_t len);
+sds *sdssplitargs(const char *line, int *argc);
+sds sdsmapchars(sds s, const char *from, const char *to, size_t setlen);
+sds sdsjoin(char **argv, int argc, char *sep);
+sds sdsjoinsds(sds *argv, int argc, const char *sep, size_t seplen);
+
+/* Low level functions exposed to the user API */
+sds sdsMakeRoomFor(sds s, size_t addlen);
+void sdsIncrLen(sds s, int incr);
+sds sdsRemoveFreeSpace(sds s);
+size_t sdsAllocSize(sds s);
+void *sdsAllocPtr(sds s);
+
+/* Export the allocator used by SDS to the program using SDS.
+ * Sometimes the program SDS is linked to, may use a different set of
+ * allocators, but may want to allocate or free things that SDS will
+ * respectively free or allocate. */
+void *sds_malloc(size_t size);
+void *sds_realloc(void *ptr, size_t size);
+void sds_free(void *ptr);
+
+#ifdef REDIS_TEST
+int sdsTest(int argc, char *argv[]);
+#endif
+
+#endif
diff --git a/rmutil/sdsalloc.h b/rmutil/sdsalloc.h
new file mode 100644
index 0000000..1538fdf
--- /dev/null
+++ b/rmutil/sdsalloc.h
@@ -0,0 +1,47 @@
+/* SDSLib 2.0 -- A C dynamic strings library
+ *
+ * Copyright (c) 2006-2015, Salvatore Sanfilippo <antirez at gmail dot com>
+ * Copyright (c) 2015, Redis Labs, Inc
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *   * Neither the name of Redis nor the names of its contributors may be used
+ *     to endorse or promote products derived from this software without
+ *     specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* SDS allocator selection.
+ *
+ * This file is used in order to change the SDS allocator at compile time.
+ * Just define the following defines to what you want to use. Also add
+ * the include of your alternate allocator if needed (not needed in order
+ * to use the default libc allocator). */
+
+#if defined(__MACH__)
+#include <stdlib.h>
+#else
+#include <malloc.h>
+#endif
+//#include "zmalloc.h"
+#define s_malloc malloc
+#define s_realloc realloc
+#define s_free free
diff --git a/rmutil/strings.c b/rmutil/strings.c
new file mode 100644
index 0000000..3933013
--- /dev/null
+++ b/rmutil/strings.c
@@ -0,0 +1,81 @@
+#include <string.h>
+#include <sys/param.h>
+#include <ctype.h>
+#include "strings.h"
+#include "alloc.h"
+
+#include "sds.h"
+
+// RedisModuleString *RMUtil_CreateFormattedString(RedisModuleCtx *ctx, const char *fmt, ...) {
+//     sds s = sdsempty();
+
+//     va_list ap;
+//     va_start(ap, fmt);
+//     s = sdscatvprintf(s, fmt, ap);
+//     va_end(ap);
+
+//     RedisModuleString *ret = RedisModule_CreateString(ctx, (const char *)s, sdslen(s));
+//     sdsfree(s);
+//     return ret;
+// }
+
+int RMUtil_StringEquals(RedisModuleString *s1, RedisModuleString *s2) {
+
+  const char *c1, *c2;
+  size_t l1, l2;
+  c1 = RedisModule_StringPtrLen(s1, &l1);
+  c2 = RedisModule_StringPtrLen(s2, &l2);
+  if (l1 != l2) return 0;
+
+  return strncmp(c1, c2, l1) == 0;
+}
+
+int RMUtil_StringEqualsC(RedisModuleString *s1, const char *s2) {
+
+  const char *c1;
+  size_t l1, l2 = strlen(s2);
+  c1 = RedisModule_StringPtrLen(s1, &l1);
+  if (l1 != l2) return 0;
+
+  return strncmp(c1, s2, l1) == 0;
+}
+int RMUtil_StringEqualsCaseC(RedisModuleString *s1, const char *s2) {
+
+  const char *c1;
+  size_t l1, l2 = strlen(s2);
+  c1 = RedisModule_StringPtrLen(s1, &l1);
+  if (l1 != l2) return 0;
+
+  return strncasecmp(c1, s2, l1) == 0;
+}
+
+void RMUtil_StringToLower(RedisModuleString *s) {
+
+  size_t l;
+  char *c = (char *)RedisModule_StringPtrLen(s, &l);
+  size_t i;
+  for (i = 0; i < l; i++) {
+    *c = tolower(*c);
+    ++c;
+  }
+}
+
+void RMUtil_StringToUpper(RedisModuleString *s) {
+  size_t l;
+  char *c = (char *)RedisModule_StringPtrLen(s, &l);
+  size_t i;
+  for (i = 0; i < l; i++) {
+    *c = toupper(*c);
+    ++c;
+  }
+}
+
+void RMUtil_StringConvert(RedisModuleString **rs, const char **ss, size_t n, int options) {
+  for (size_t ii = 0; ii < n; ++ii) {
+    const char *p = RedisModule_StringPtrLen(rs[ii], NULL);
+    if (options & RMUTIL_STRINGCONVERT_COPY) {
+      p = strdup(p);
+    }
+    ss[ii] = p;
+  }
+}
\ No newline at end of file
diff --git a/rmutil/strings.h b/rmutil/strings.h
new file mode 100644
index 0000000..eaef71e
--- /dev/null
+++ b/rmutil/strings.h
@@ -0,0 +1,38 @@
+#ifndef __RMUTIL_STRINGS_H__
+#define __RMUTIL_STRINGS_H__
+
+#include <redismodule.h>
+
+/*
+* Create a new RedisModuleString object from a printf-style format and arguments.
+* Note that RedisModuleString objects CANNOT be used as formatting arguments.
+*/
+// DEPRECATED since it was added to the RedisModule API. Replaced with a macro below
+// RedisModuleString *RMUtil_CreateFormattedString(RedisModuleCtx *ctx, const char *fmt, ...);
+#define RMUtil_CreateFormattedString RedisModule_CreateStringPrintf
+
+/* Return 1 if the two strings are equal. Case *sensitive* */
+int RMUtil_StringEquals(RedisModuleString *s1, RedisModuleString *s2);
+
+/* Return 1 if the string is equal to a C NULL terminated string. Case *sensitive* */
+int RMUtil_StringEqualsC(RedisModuleString *s1, const char *s2);
+
+/* Return 1 if the string is equal to a C NULL terminated string. Case *insensitive* */
+int RMUtil_StringEqualsCaseC(RedisModuleString *s1, const char *s2);
+
+/* Converts a redis string to lowercase in place without reallocating anything */
+void RMUtil_StringToLower(RedisModuleString *s);
+
+/* Converts a redis string to uppercase in place without reallocating anything */
+void RMUtil_StringToUpper(RedisModuleString *s);
+
+// If set, copy the strings using strdup rather than simply storing pointers.
+#define RMUTIL_STRINGCONVERT_COPY 1
+
+/**
+ * Convert one or more RedisModuleString objects into `const char*`.
+ * Both rs and ss are arrays, and should be of <n> length.
+ * Options may be 0 or `RMUTIL_STRINGCONVERT_COPY`
+ */
+void RMUtil_StringConvert(RedisModuleString **rs, const char **ss, size_t n, int options);
+#endif
diff --git a/rmutil/test.h b/rmutil/test.h
new file mode 100644
index 0000000..a15864a
--- /dev/null
+++ b/rmutil/test.h
@@ -0,0 +1,69 @@
+#ifndef __TESTUTIL_H__
+#define __TESTUTIL_H__
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+static int numTests = 0;
+static int numAsserts = 0;
+
+#define TESTFUNC(f)                        \
+  printf("  Testing %s\t\t", __STRING(f)); \
+  numTests++;                              \
+  fflush(stdout);                          \
+  if (f()) {                               \
+    printf(" %s FAILED!\n", __STRING(f));  \
+    exit(1);                               \
+  } else                                   \
+    printf("[PASS]\n");
+
+#define ASSERTM(expr, ...)                                                                 \
+  if (!(expr)) {                                                                           \
+    fprintf(stderr, "%s:%d: Assertion '%s' Failed: " __VA_ARGS__ "\n", __FILE__, __LINE__, \
+            __STRING(expr));                                                               \
+    return -1;                                                                             \
+  }                                                                                        \
+  numAsserts++;
+
+#define ASSERT(expr)                                                                      \
+  if (!(expr)) {                                                                          \
+    fprintf(stderr, "%s:%d Assertion '%s' Failed\n", __FILE__, __LINE__, __STRING(expr)); \
+    return -1;                                                                            \
+  }                                                                                       \
+  numAsserts++;
+
+#define ASSERT_STRING_EQ(s1, s2) ASSERT(!strcmp(s1, s2));
+
+#define ASSERT_EQUAL(x, y, ...)                                           \
+  if (x != y) {                                                           \
+    fprintf(stderr, "%s:%d: ", __FILE__, __LINE__);                       \
+    fprintf(stderr, "%g != %g: " __VA_ARGS__ "\n", (double)x, (double)y); \
+    return -1;                                                            \
+  }                                                                       \
+  numAsserts++;
+
+#define FAIL(fmt, ...)                                                            \
+  {                                                                               \
+    fprintf(stderr, "%s:%d: FAIL: " fmt "\n", __FILE__, __LINE__, ##__VA_ARGS__); \
+    return -1;                                                                    \
+  }
+
+#define RETURN_TEST_SUCCESS return 0;
+#define TEST_CASE(x, block) \
+  int x {                   \
+    block;                  \
+    return 0                \
+  }
+
+#define PRINT_TEST_SUMMARY printf("\nTotal: %d tests and %d assertions OK\n", numTests, numAsserts);
+
+#define TEST_MAIN(body)                         \
+  int main(int argc, char **argv) {             \
+    printf("Starting Test '%s'...\n", argv[0]); \
+    body;                                       \
+    PRINT_TEST_SUMMARY;                         \
+    printf("\n--------------------\n\n");       \
+    return 0;                                   \
+  }
+#endif
\ No newline at end of file
diff --git a/rmutil/test_heap.c b/rmutil/test_heap.c
new file mode 100644
index 0000000..820c299
--- /dev/null
+++ b/rmutil/test_heap.c
@@ -0,0 +1,38 @@
+#include <stdio.h>
+#include "heap.h"
+#include "assert.h"
+
+int cmp(void *a, void *b) {
+    int *__a = (int *) a;
+    int *__b = (int *) b;
+    return *__a - *__b;
+}
+
+int main(int argc, char **argv) {
+    int myints[] = {10, 20, 30, 5, 15};
+    Vector *v = NewVector(int, 5);
+    for (int i = 0; i < 5; i++) {
+        Vector_Push(v, myints[i]);
+    }
+
+    Make_Heap(v, 0, v->top, cmp);
+
+    int n;
+    Vector_Get(v, 0, &n);
+    assert(30 == n);
+
+    Heap_Pop(v, 0, v->top, cmp);
+    v->top = 4;
+    Vector_Get(v, 0, &n);
+    assert(20 == n);
+
+    Vector_Push(v, 99);
+    Heap_Push(v, 0, v->top, cmp);
+    Vector_Get(v, 0, &n);
+    assert(99 == n);
+
+    Vector_Free(v);
+    printf("PASS!\n");
+    return 0;
+}
+
diff --git a/rmutil/test_periodic.c b/rmutil/test_periodic.c
new file mode 100644
index 0000000..a27d7a4
--- /dev/null
+++ b/rmutil/test_periodic.c
@@ -0,0 +1,26 @@
+#include <stdio.h>
+#include <redismodule.h>
+#include <unistd.h>
+#include "periodic.h"
+#include "assert.h"
+#include "test.h"
+
+void timerCb(RedisModuleCtx *ctx, void *p) {
+  int *x = p;
+  (*x)++;
+}
+
+int testPeriodic() {
+  int x = 0;
+  struct RMUtilTimer *tm = RMUtil_NewPeriodicTimer(
+      timerCb, NULL, &x, (struct timespec){.tv_sec = 0, .tv_nsec = 10000000});
+
+  sleep(1);
+
+  ASSERT_EQUAL(0, RMUtilTimer_Terminate(tm));
+  ASSERT(x > 0);
+  ASSERT(x <= 100);
+  return 0;
+}
+
+TEST_MAIN({ TESTFUNC(testPeriodic); });
diff --git a/rmutil/test_priority_queue.c b/rmutil/test_priority_queue.c
new file mode 100644
index 0000000..4a21c18
--- /dev/null
+++ b/rmutil/test_priority_queue.c
@@ -0,0 +1,37 @@
+#include <stdio.h>
+#include "assert.h"
+#include "priority_queue.h"
+
+int cmp(void* i1, void* i2) {
+    int *__i1 = (int*) i1;
+    int *__i2 = (int*) i2;
+    return *__i1 - *__i2;
+}
+
+int main(int argc, char **argv) {
+    PriorityQueue *pq = NewPriorityQueue(int, 10, cmp);
+    assert(0 == Priority_Queue_Size(pq));
+
+    for (int i = 0; i < 5; i++) {
+        Priority_Queue_Push(pq, i);
+    }
+    assert(5 == Priority_Queue_Size(pq));
+
+    Priority_Queue_Pop(pq);
+    assert(4 == Priority_Queue_Size(pq));
+
+    Priority_Queue_Push(pq, 10);
+    Priority_Queue_Push(pq, 20);
+    Priority_Queue_Push(pq, 15);
+    int n;
+    Priority_Queue_Top(pq, &n);
+    assert(20 == n);
+
+    Priority_Queue_Pop(pq);
+    Priority_Queue_Top(pq, &n);
+    assert(15 == n);
+
+    Priority_Queue_Free(pq);
+    printf("PASS!\n");
+    return 0;
+}
diff --git a/rmutil/test_util.h b/rmutil/test_util.h
new file mode 100644
index 0000000..5d32abc
--- /dev/null
+++ b/rmutil/test_util.h
@@ -0,0 +1,70 @@
+#ifndef __TEST_UTIL_H__
+#define __TEST_UTIL_H__
+
+#include "util.h"
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+
+
+#define RMUtil_Test(f) \
+                if (argc < 2 || RMUtil_ArgExists(__STRING(f), argv, argc, 1)) { \
+                    int rc = f(ctx); \
+                    if (rc != REDISMODULE_OK) { \
+                        RedisModule_ReplyWithError(ctx, "Test " __STRING(f) " FAILED"); \
+                        return REDISMODULE_ERR;\
+                    }\
+                }
+           
+                
+#define RMUtil_Assert(expr) if (!(expr)) { fprintf (stderr, "Assertion '%s' Failed\n", __STRING(expr)); return REDISMODULE_ERR; }
+
+#define RMUtil_AssertNullReply(rep) RMUtil_Assert( \
+            RedisModule_CallReplyType(rep) == REDISMODULE_REPLY_NULL || RedisModule_CreateStringFromCallReply(rep) == NULL)
+
+#define RMUtil_AssertReplyEquals(rep, cstr) RMUtil_Assert( \
+            RMUtil_StringEquals(RedisModule_CreateStringFromCallReply(rep), RedisModule_CreateString(ctx, cstr, strlen(cstr))) \
+            )
+#            
+
+/**
+* Create an arg list to pass to a redis command handler manually, based on the format in fmt.
+* The accepted format specifiers are:
+*   c - for null terminated c strings
+*   s - for RedisModuleString* objects
+*   l - for longs
+*
+*  Example:  RMUtil_MakeArgs(ctx, &argc, "clc", "hello", 1337, "world");
+*
+*  Returns an array of RedisModuleString pointers. The size of the array is store in argcp
+*/
+RedisModuleString **RMUtil_MakeArgs(RedisModuleCtx *ctx, int *argcp, const char *fmt, ...) {
+    
+    va_list ap;
+    va_start(ap, fmt);
+    RedisModuleString **argv = calloc(strlen(fmt), sizeof(RedisModuleString*));
+    int argc = 0;
+    const char *p = fmt;
+    while(*p) {
+        if (*p == 'c') {
+            char *cstr = va_arg(ap,char*);
+            argv[argc++] = RedisModule_CreateString(ctx, cstr, strlen(cstr));
+        } else if (*p == 's') {
+            argv[argc++] = va_arg(ap,void*);;
+        } else if (*p == 'l') {
+            long ll = va_arg(ap,long long);
+            argv[argc++] = RedisModule_CreateStringFromLongLong(ctx, ll);
+        } else {
+            goto fmterr;
+        }
+        p++;
+    }
+    *argcp = argc;
+    
+    return argv;
+fmterr:
+    free(argv);
+    return NULL;
+}
+
+#endif
diff --git a/rmutil/test_vector.c b/rmutil/test_vector.c
new file mode 100644
index 0000000..c5737b2
--- /dev/null
+++ b/rmutil/test_vector.c
@@ -0,0 +1,58 @@
+#include "vector.h"
+#include <stdio.h>
+#include "test.h"
+
+int testVector() {
+
+  Vector *v = NewVector(int, 1);
+  ASSERT(v != NULL);
+  // Vector_Put(v, 0, 1);
+  // Vector_Put(v, 1, 3);
+  for (int i = 0; i < 10; i++) {
+    Vector_Push(v, i);
+  }
+  ASSERT_EQUAL(10, Vector_Size(v));
+  ASSERT_EQUAL(16, Vector_Cap(v));
+
+  for (int i = 0; i < Vector_Size(v); i++) {
+    int n;
+    int rc = Vector_Get(v, i, &n);
+    ASSERT_EQUAL(1, rc);
+    // printf("%d %d\n", rc, n);
+
+    ASSERT_EQUAL(n, i);
+  }
+
+  Vector_Free(v);
+
+  v = NewVector(char *, 0);
+  int N = 4;
+  char *strings[4] = {"hello", "world", "foo", "bar"};
+
+  for (int i = 0; i < N; i++) {
+    Vector_Push(v, strings[i]);
+  }
+  ASSERT_EQUAL(N, Vector_Size(v));
+  ASSERT(Vector_Cap(v) >= N);
+
+  for (int i = 0; i < Vector_Size(v); i++) {
+    char *x;
+    int rc = Vector_Get(v, i, &x);
+    ASSERT_EQUAL(1, rc);
+    ASSERT_STRING_EQ(x, strings[i]);
+  }
+
+  int rc = Vector_Get(v, 100, NULL);
+  ASSERT_EQUAL(0, rc);
+
+  Vector_Free(v);
+
+  return 0;
+  // Vector_Push(v, "hello");
+  // Vector_Push(v, "world");
+  // char *x = NULL;
+  // int rc = Vector_Getx(v, 0, &x);
+  // printf("rc: %d got %s\n", rc, x);
+}
+
+TEST_MAIN({ TESTFUNC(testVector); });
diff --git a/rmutil/util.c b/rmutil/util.c
new file mode 100644
index 0000000..886c8b5
--- /dev/null
+++ b/rmutil/util.c
@@ -0,0 +1,299 @@
+#include <stdlib.h>
+#include <errno.h>
+#include <math.h>
+#include <ctype.h>
+#include <sys/time.h>
+#include <stdarg.h>
+#include <limits.h>
+#include <string.h>
+#define REDISMODULE_EXPERIMENTAL_API
+#include <redismodule.h>
+#include "util.h"
+
+/**
+Check if an argument exists in an argument list (argv,argc), starting at offset.
+@return 0 if it doesn't exist, otherwise the offset it exists in
+*/
+int RMUtil_ArgExists(const char *arg, RedisModuleString **argv, int argc, int offset) {
+
+  size_t larg = strlen(arg);
+  for (; offset < argc; offset++) {
+    size_t l;
+    const char *carg = RedisModule_StringPtrLen(argv[offset], &l);
+    if (l != larg) continue;
+    if (carg != NULL && strncasecmp(carg, arg, larg) == 0) {
+      return offset;
+    }
+  }
+  return 0;
+}
+
+/**
+Check if an argument exists in an argument list (argv,argc)
+@return -1 if it doesn't exist, otherwise the offset it exists in
+*/
+int RMUtil_ArgIndex(const char *arg, RedisModuleString **argv, int argc) {
+
+  size_t larg = strlen(arg);
+  for (int offset = 0; offset < argc; offset++) {
+    size_t l;
+    const char *carg = RedisModule_StringPtrLen(argv[offset], &l);
+    if (l != larg) continue;
+    if (carg != NULL && strncasecmp(carg, arg, larg) == 0) {
+      return offset;
+    }
+  }
+  return -1;
+}
+
+RMUtilInfo *RMUtil_GetRedisInfo(RedisModuleCtx *ctx) {
+
+  RedisModuleCallReply *r = RedisModule_Call(ctx, "INFO", "c", "all");
+  if (r == NULL || RedisModule_CallReplyType(r) == REDISMODULE_REPLY_ERROR) {
+    return NULL;
+  }
+
+  int cap = 100;  // rough estimate of info lines
+  RMUtilInfo *info = malloc(sizeof(RMUtilInfo));
+  info->entries = calloc(cap, sizeof(RMUtilInfoEntry));
+
+  int i = 0;
+  size_t sz;
+  char *text = (char *)RedisModule_CallReplyStringPtr(r, &sz);
+
+  char *line = text;
+  while (line && line < text + sz) {
+    char *line = strsep(&text, "\r\n");
+    if (line == NULL) break;
+
+    if (!(*line >= 'a' && *line <= 'z')) {  // skip non entry lines
+      continue;
+    }
+
+    char *key = strsep(&line, ":");
+    info->entries[i].key = strdup(key);
+    info->entries[i].val = strdup(line);
+    i++;
+    if (i >= cap) {
+      cap *= 2;
+      info->entries = realloc(info->entries, cap * sizeof(RMUtilInfoEntry));
+    }
+  }
+  info->numEntries = i;
+  RedisModule_FreeCallReply(r);
+  return info;
+}
+void RMUtilRedisInfo_Free(RMUtilInfo *info) {
+  for (int i = 0; i < info->numEntries; i++) {
+    free(info->entries[i].key);
+    free(info->entries[i].val);
+  }
+  free(info->entries);
+  free(info);
+}
+
+int RMUtilInfo_GetInt(RMUtilInfo *info, const char *key, long long *val) {
+
+  const char *p = NULL;
+  if (!RMUtilInfo_GetString(info, key, &p)) {
+    return 0;
+  }
+
+  *val = strtoll(p, NULL, 10);
+  if ((errno == ERANGE && (*val == LONG_MAX || *val == LONG_MIN)) || (errno != 0 && *val == 0)) {
+    *val = -1;
+    return 0;
+  }
+
+  return 1;
+}
+
+int RMUtilInfo_GetString(RMUtilInfo *info, const char *key, const char **str) {
+  int i;
+  for (i = 0; i < info->numEntries; i++) {
+    if (!strcmp(key, info->entries[i].key)) {
+      *str = info->entries[i].val;
+      return 1;
+    }
+  }
+  return 0;
+}
+
+int RMUtilInfo_GetDouble(RMUtilInfo *info, const char *key, double *d) {
+  const char *p = NULL;
+  if (!RMUtilInfo_GetString(info, key, &p)) {
+    printf("not found %s\n", key);
+    return 0;
+  }
+
+  *d = strtod(p, NULL);
+  if ((errno == ERANGE && (*d == HUGE_VAL || *d == -HUGE_VAL)) || (errno != 0 && *d == 0)) {
+    return 0;
+  }
+
+  return 1;
+}
+
+/*
+c -- pointer to a Null terminated C string pointer.
+b -- pointer to a C buffer, followed by pointer to a size_t for its length
+s -- pointer to a RedisModuleString
+l -- pointer to Long long integer.
+d -- pointer to a Double
+* -- do not parse this argument at all
+*/
+int RMUtil_ParseArgs(RedisModuleString **argv, int argc, int offset, const char *fmt, ...) {
+  va_list ap;
+  va_start(ap, fmt);
+  int rc = rmutil_vparseArgs(argv, argc, offset, fmt, ap);
+  va_end(ap);
+  return rc;
+}
+
+// Internal function that parses arguments based on the format described above
+int rmutil_vparseArgs(RedisModuleString **argv, int argc, int offset, const char *fmt, va_list ap) {
+
+  int i = offset;
+  char *c = (char *)fmt;
+  while (*c && i < argc) {
+
+    // read c string
+    if (*c == 'c') {
+      char **p = va_arg(ap, char **);
+      *p = (char *)RedisModule_StringPtrLen(argv[i], NULL);
+    } else if (*c == 'b') {
+      char **p = va_arg(ap, char **);
+      size_t *len = va_arg(ap, size_t *);
+      *p = (char *)RedisModule_StringPtrLen(argv[i], len);
+    } else if (*c == 's') {  // read redis string
+
+      RedisModuleString **s = va_arg(ap, void *);
+      *s = argv[i];
+
+    } else if (*c == 'l') {  // read long
+      long long *l = va_arg(ap, long long *);
+
+      if (RedisModule_StringToLongLong(argv[i], l) != REDISMODULE_OK) {
+        return REDISMODULE_ERR;
+      }
+    } else if (*c == 'd') {  // read double
+      double *d = va_arg(ap, double *);
+      if (RedisModule_StringToDouble(argv[i], d) != REDISMODULE_OK) {
+        return REDISMODULE_ERR;
+      }
+    } else if (*c == '*') {  // skip current arg
+      // do nothing
+    } else {
+      return REDISMODULE_ERR;  // WAT?
+    }
+    c++;
+    i++;
+  }
+  // if the format is longer than argc, retun an error
+  if (*c != 0) {
+    return REDISMODULE_ERR;
+  }
+  return REDISMODULE_OK;
+}
+
+int RMUtil_ParseArgsAfter(const char *token, RedisModuleString **argv, int argc, const char *fmt,
+                          ...) {
+
+  int pos = RMUtil_ArgIndex(token, argv, argc);
+  if (pos < 0) {
+    return REDISMODULE_ERR;
+  }
+
+  va_list ap;
+  va_start(ap, fmt);
+  int rc = rmutil_vparseArgs(argv, argc, pos + 1, fmt, ap);
+  va_end(ap);
+  return rc;
+}
+
+RedisModuleCallReply *RedisModule_CallReplyArrayElementByPath(RedisModuleCallReply *rep,
+                                                              const char *path) {
+  if (rep == NULL) return NULL;
+
+  RedisModuleCallReply *ele = rep;
+  const char *s = path;
+  char *e;
+  long idx;
+  do {
+    errno = 0;
+    idx = strtol(s, &e, 10);
+
+    if ((errno == ERANGE && (idx == LONG_MAX || idx == LONG_MIN)) || (errno != 0 && idx == 0) ||
+        (REDISMODULE_REPLY_ARRAY != RedisModule_CallReplyType(ele)) || (s == e)) {
+      ele = NULL;
+      break;
+    }
+    s = e;
+    ele = RedisModule_CallReplyArrayElement(ele, idx - 1);
+
+  } while ((ele != NULL) && (*e != '\0'));
+
+  return ele;
+}
+
+int RedisModule_TryGetValue(RedisModuleKey *key, const RedisModuleType *type, void **out) {
+  if (key == NULL) {
+    return RMUTIL_VALUE_MISSING;
+  }
+  int keytype = RedisModule_KeyType(key);
+  if (keytype == REDISMODULE_KEYTYPE_EMPTY) {
+    return RMUTIL_VALUE_EMPTY;
+  } else if (keytype == REDISMODULE_KEYTYPE_MODULE && RedisModule_ModuleTypeGetType(key) == type) {
+    *out = RedisModule_ModuleTypeGetValue(key);
+    return RMUTIL_VALUE_OK;
+  } else {
+    return RMUTIL_VALUE_MISMATCH;
+  }
+}
+
+RedisModuleString **RMUtil_ParseVarArgs(RedisModuleString **argv, int argc, int offset,
+                                        const char *keyword, size_t *nargs) {
+  if (offset > argc) {
+    return NULL;
+  }
+
+  argv += offset;
+  argc -= offset;
+
+  int ix = RMUtil_ArgIndex(keyword, argv, argc);
+  if (ix < 0) {
+    return NULL;
+  } else if (ix >= argc - 1) {
+    *nargs = RMUTIL_VARARGS_BADARG;
+    return argv;
+  }
+
+  argv += (ix + 1);
+  argc -= (ix + 1);
+
+  long long n = 0;
+  RMUtil_ParseArgs(argv, argc, 0, "l", &n);
+  if (n > argc - 1 || n < 0) {
+    *nargs = RMUTIL_VARARGS_BADARG;
+    return argv;
+  }
+
+  *nargs = n;
+  return argv + 1;
+}
+
+void RMUtil_DefaultAofRewrite(RedisModuleIO *aof, RedisModuleString *key, void *value) {
+  RedisModuleCtx *ctx = RedisModule_GetThreadSafeContext(NULL);
+  RedisModuleCallReply *rep = RedisModule_Call(ctx, "DUMP", "s", key);
+  if (rep != NULL && RedisModule_CallReplyType(rep) == REDISMODULE_REPLY_STRING) {
+    size_t n;
+    const char *s = RedisModule_CallReplyStringPtr(rep, &n);
+    RedisModule_EmitAOF(aof, "RESTORE", "slb", key, 0, s, n);
+  } else {
+    RedisModule_Log(RedisModule_GetContextFromIO(aof), "warning", "Failed to emit AOF");
+  }
+  if (rep != NULL) {
+    RedisModule_FreeCallReply(rep);
+  }
+  RedisModule_FreeThreadSafeContext(ctx);
+}
\ No newline at end of file
diff --git a/rmutil/util.h b/rmutil/util.h
new file mode 100644
index 0000000..0de9b29
--- /dev/null
+++ b/rmutil/util.h
@@ -0,0 +1,151 @@
+#ifndef __UTIL_H__
+#define __UTIL_H__
+
+#include <redismodule.h>
+#include <stdarg.h>
+
+/// make sure the response is not NULL or an error, and if it is sends the error to the client and
+/// exit the current function
+#define RMUTIL_ASSERT_NOERROR(ctx, r)                                   \
+  if (r == NULL) {                                                      \
+    return RedisModule_ReplyWithError(ctx, "ERR reply is NULL");        \
+  } else if (RedisModule_CallReplyType(r) == REDISMODULE_REPLY_ERROR) { \
+    RedisModule_ReplyWithCallReply(ctx, r);                             \
+    return REDISMODULE_ERR;                                             \
+  }
+
+#define __rmutil_register_cmd(ctx, cmd, f, mode)                                \
+  if (RedisModule_CreateCommand(ctx, cmd, f, mode, 1, 1, 1) == REDISMODULE_ERR) \
+    return REDISMODULE_ERR;
+
+#define RMUtil_RegisterReadCmd(ctx, cmd, f) __rmutil_register_cmd(ctx, cmd, f, "readonly")
+
+#define RMUtil_RegisterWriteCmd(ctx, cmd, f) __rmutil_register_cmd(ctx, cmd, f, "write")
+
+#define RMUtil_RegisterWriteDenyOOMCmd(ctx, cmd, f) __rmutil_register_cmd(ctx, cmd, f, "write deny-oom")
+
+/* RedisModule utilities. */
+
+/** DEPRECATED: Return the offset of an arg if it exists in the arg list, or 0 if it's not there */
+int RMUtil_ArgExists(const char *arg, RedisModuleString **argv, int argc, int offset);
+
+/* Same as argExists but returns -1 if not found. Use this, RMUtil_ArgExists is kept for backwards
+compatibility. */
+int RMUtil_ArgIndex(const char *arg, RedisModuleString **argv, int argc);
+
+/**
+Automatically conver the arg list to corresponding variable pointers according to a given format.
+You pass it the command arg list and count, the starting offset, a parsing format, and pointers to
+the variables.
+The format is a string consisting of the following identifiers:
+
+    c -- pointer to a Null terminated C string pointer.
+    s -- pointer to a RedisModuleString
+    l -- pointer to Long long integer.
+    d -- pointer to a Double
+    * -- do not parse this argument at all
+
+Example: If I want to parse args[1], args[2] as a long long and double, I do:
+    double d;
+    long long l;
+    RMUtil_ParseArgs(argv, argc, 1, "ld", &l, &d);
+*/
+int RMUtil_ParseArgs(RedisModuleString **argv, int argc, int offset, const char *fmt, ...);
+
+/**
+Same as RMUtil_ParseArgs, but only parses the arguments after `token`, if it was found.
+This is useful for optional stuff like [LIMIT [offset] [limit]]
+*/
+int RMUtil_ParseArgsAfter(const char *token, RedisModuleString **argv, int argc, const char *fmt,
+                          ...);
+
+int rmutil_vparseArgs(RedisModuleString **argv, int argc, int offset, const char *fmt, va_list ap);
+
+#define RMUTIL_VARARGS_BADARG ((size_t)-1)
+/**
+ * Parse arguments in the form of KEYWORD {len} {arg} .. {arg}_len.
+ * If keyword is present, returns the position within `argv` containing the arguments.
+ * Returns NULL if the keyword is not found.
+ * If a parse error has occurred, `nargs` is set to RMUTIL_VARARGS_BADARG, but
+ * the return value is not NULL.
+ */
+RedisModuleString **RMUtil_ParseVarArgs(RedisModuleString **argv, int argc, int offset,
+                                        const char *keyword, size_t *nargs);
+
+/**
+ * Default implementation of an AoF rewrite function that simply calls DUMP/RESTORE
+ * internally. To use this function, pass it as the .aof_rewrite value in
+ * RedisModuleTypeMethods
+ */
+void RMUtil_DefaultAofRewrite(RedisModuleIO *aof, RedisModuleString *key, void *value);
+
+// A single key/value entry in a redis info map
+typedef struct {
+  char *key;
+  char *val;
+} RMUtilInfoEntry;
+
+// Representation of INFO command response, as a list of k/v pairs
+typedef struct {
+  RMUtilInfoEntry *entries;
+  int numEntries;
+} RMUtilInfo;
+
+/**
+* Get redis INFO result and parse it as RMUtilInfo.
+* Returns NULL if something goes wrong.
+* The resulting object needs to be freed with RMUtilRedisInfo_Free
+*/
+RMUtilInfo *RMUtil_GetRedisInfo(RedisModuleCtx *ctx);
+
+/**
+* Free an RMUtilInfo object and its entries
+*/
+void RMUtilRedisInfo_Free(RMUtilInfo *info);
+
+/**
+* Get an integer value from an info object. Returns 1 if the value was found and
+* is an integer, 0 otherwise. the value is placed in 'val'
+*/
+int RMUtilInfo_GetInt(RMUtilInfo *info, const char *key, long long *val);
+
+/**
+* Get a string value from an info object. The value is placed in str.
+* Returns 1 if the key was found, 0 if not
+*/
+int RMUtilInfo_GetString(RMUtilInfo *info, const char *key, const char **str);
+
+/**
+* Get a double value from an info object. Returns 1 if the value was found and is
+* a correctly formatted double, 0 otherwise. the value is placed in 'd'
+*/
+int RMUtilInfo_GetDouble(RMUtilInfo *info, const char *key, double *d);
+
+/*
+* Returns a call reply array's element given by a space-delimited path. E.g.,
+* the path "1 2 3" will return the 3rd element from the 2 element of the 1st
+* element from an array (or NULL if not found)
+*/
+RedisModuleCallReply *RedisModule_CallReplyArrayElementByPath(RedisModuleCallReply *rep,
+                                                              const char *path);
+
+/**
+ * Extract the module type from an opened key.
+ */
+typedef enum {
+  RMUTIL_VALUE_OK = 0,
+  RMUTIL_VALUE_MISSING,
+  RMUTIL_VALUE_EMPTY,
+  RMUTIL_VALUE_MISMATCH
+} RMUtil_TryGetValueStatus;
+
+/**
+ * Tries to extract the module-specific type from the value.
+ * @param key an opened key (may be null)
+ * @param type the pointer to the type to match to
+ * @param[out] out if the value is present, will be set to it.
+ * @return a value in the @ref RMUtil_TryGetValueStatus enum.
+ */
+int RedisModule_TryGetValue(RedisModuleKey *key, const RedisModuleType *type, void **out);
+
+#endif
diff --git a/rmutil/vector.c b/rmutil/vector.c
new file mode 100644
index 0000000..25f7fdc
--- /dev/null
+++ b/rmutil/vector.c
@@ -0,0 +1,88 @@
+#include "vector.h"
+#include <stdio.h>
+
+inline int __vector_PushPtr(Vector *v, void *elem) {
+  if (v->top == v->cap) {
+    Vector_Resize(v, v->cap ? v->cap * 2 : 1);
+  }
+
+  __vector_PutPtr(v, v->top, elem);
+  return v->top;
+}
+
+inline int Vector_Get(Vector *v, size_t pos, void *ptr) {
+  // return 0 if pos is out of bounds
+  if (pos >= v->top) {
+    return 0;
+  }
+
+  memcpy(ptr, v->data + (pos * v->elemSize), v->elemSize);
+  return 1;
+}
+
+/* Get the element at the end of the vector, decreasing the size by one */
+inline int Vector_Pop(Vector *v, void *ptr) {
+  if (v->top > 0) {
+    if (ptr != NULL) {
+      Vector_Get(v, v->top - 1, ptr);
+    }
+    v->top--;
+    return 1;
+  }
+  return 0;
+}
+
+inline int __vector_PutPtr(Vector *v, size_t pos, void *elem) {
+  // resize if pos is out of bounds
+  if (pos >= v->cap) {
+    Vector_Resize(v, pos + 1);
+  }
+
+  if (elem) {
+    memcpy(v->data + pos * v->elemSize, elem, v->elemSize);
+  } else {
+    memset(v->data + pos * v->elemSize, 0, v->elemSize);
+  }
+  // move the end offset to pos if we grew
+  if (pos >= v->top) {
+    v->top = pos + 1;
+  }
+  return 1;
+}
+
+int Vector_Resize(Vector *v, size_t newcap) {
+  int oldcap = v->cap;
+  v->cap = newcap;
+
+  v->data = realloc(v->data, v->cap * v->elemSize);
+
+  // If we grew:
+  // put all zeros at the newly realloc'd part of the vector
+  if (newcap > oldcap) {
+    int offset = oldcap * v->elemSize;
+    memset(v->data + offset, 0, v->cap * v->elemSize - offset);
+  }
+  return v->cap;
+}
+
+Vector *__newVectorSize(size_t elemSize, size_t cap) {
+  Vector *vec = malloc(sizeof(Vector));
+  vec->data = calloc(cap, elemSize);
+  vec->top = 0;
+  vec->elemSize = elemSize;
+  vec->cap = cap;
+
+  return vec;
+}
+
+void Vector_Free(Vector *v) {
+  free(v->data);
+  free(v);
+}
+
+
+/* return the used size of the vector, regardless of capacity */
+inline int Vector_Size(Vector *v) { return v->top; }
+
+/* return the actual capacity */
+inline int Vector_Cap(Vector *v) { return v->cap; }
diff --git a/rmutil/vector.h b/rmutil/vector.h
new file mode 100644
index 0000000..a3b606f
--- /dev/null
+++ b/rmutil/vector.h
@@ -0,0 +1,73 @@
+#ifndef __VECTOR_H__
+#define __VECTOR_H__
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+
+/*
+* Generic resizable vector that can be used if you just want to store stuff
+* temporarily.
+* Works like C++ std::vector with an underlying resizable buffer
+*/
+typedef struct {
+    char *data;
+    size_t elemSize;
+    size_t cap;
+    size_t top;
+
+} Vector;
+
+/* Create a new vector with element size. This should generally be used
+ * internall by the NewVector macro */
+Vector *__newVectorSize(size_t elemSize, size_t cap);
+
+// Put a pointer in the vector. To be used internall by the library
+int __vector_PutPtr(Vector *v, size_t pos, void *elem);
+
+/*
+* Create a new vector for a given type and a given capacity.
+* e.g. NewVector(int, 0) - empty vector of ints
+*/
+#define NewVector(type, cap) __newVectorSize(sizeof(type), cap)
+
+/*
+* get the element at index pos. The value is copied in to ptr. If pos is outside
+* the vector capacity, we return 0
+* otherwise 1
+*/
+int Vector_Get(Vector *v, size_t pos, void *ptr);
+
+/* Get the element at the end of the vector, decreasing the size by one */
+int Vector_Pop(Vector *v, void *ptr);
+
+//#define Vector_Getx(v, pos, ptr) pos < v->cap ? 1 : 0; *ptr =
+//*(typeof(ptr))(v->data + v->elemSize*pos)
+
+/*
+* Put an element at pos.
+* Note: If pos is outside the vector capacity, we resize it accordingly
+*/
+#define Vector_Put(v, pos, elem) __vector_PutPtr(v, pos, elem ? &(typeof(elem)){elem} : NULL)
+
+/* Push an element at the end of v, resizing it if needed. This macro wraps
+ * __vector_PushPtr */
+#define Vector_Push(v, elem) __vector_PushPtr(v, elem ? &(typeof(elem)){elem} : NULL)
+
+int __vector_PushPtr(Vector *v, void *elem);
+
+/* resize capacity of v */
+int Vector_Resize(Vector *v, size_t newcap);
+
+/* return the used size of the vector, regardless of capacity */
+int Vector_Size(Vector *v);
+
+/* return the actual capacity */
+int Vector_Cap(Vector *v);
+
+/* free the vector and the underlying data. Does not release its elements if
+ * they are pointers*/
+void Vector_Free(Vector *v);
+
+int __vecotr_PutPtr(Vector *v, size_t pos, void *elem);
+
+#endif
\ No newline at end of file
diff --git a/source/module.c b/source/module.c
new file mode 100644
index 0000000..e16416a
--- /dev/null
+++ b/source/module.c
@@ -0,0 +1,146 @@
+#include "redismodule.h"
+#include "../rmutil/util.h"
+#include "../rmutil/strings.h"
+#include "../rmutil/test_util.h"
+
+/* EXAMPLE.PARSE [SUM <x> <y>] | [PROD <x> <y>]
+*  Demonstrates the automatic arg parsing utility.
+*  If the command receives "SUM <x> <y>" it returns their sum
+*  If it receives "PROD <x> <y>" it returns their product
+*/
+int ParseCommand(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) {
+
+  // we must have at least 4 args
+  if (argc < 4) {
+    return RedisModule_WrongArity(ctx);
+  }
+
+  // init auto memory for created strings
+  RedisModule_AutoMemory(ctx);
+  long long x, y;
+
+  // If we got SUM - return the sum of 2 consecutive arguments
+  if (RMUtil_ParseArgsAfter("SUM", argv, argc, "ll", &x, &y) ==
+      REDISMODULE_OK) {
+    RedisModule_ReplyWithLongLong(ctx, x + y);
+    return REDISMODULE_OK;
+  }
+
+  // If we got PROD - return the product of 2 consecutive arguments
+  if (RMUtil_ParseArgsAfter("PROD", argv, argc, "ll", &x, &y) ==
+      REDISMODULE_OK) {
+    RedisModule_ReplyWithLongLong(ctx, x * y);
+    return REDISMODULE_OK;
+  }
+
+  // something is fishy...
+  RedisModule_ReplyWithError(ctx, "Invalid arguments");
+
+  return REDISMODULE_ERR;
+}
+
+/*
+* example.HGETSET <key> <element> <value>
+* Atomically set a value in a HASH key to <value> and return its value before
+* the HSET.
+*
+* Basically atomic HGET + HSET
+*/
+int HGetSetCommand(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) {
+
+  // we need EXACTLY 4 arguments
+  if (argc != 4) {
+    return RedisModule_WrongArity(ctx);
+  }
+  RedisModule_AutoMemory(ctx);
+
+  // open the key and make sure it's indeed a HASH and not empty
+  RedisModuleKey *key =
+      RedisModule_OpenKey(ctx, argv[1], REDISMODULE_READ | REDISMODULE_WRITE);
+  if (RedisModule_KeyType(key) != REDISMODULE_KEYTYPE_HASH &&
+      RedisModule_KeyType(key) != REDISMODULE_KEYTYPE_EMPTY) {
+    return RedisModule_ReplyWithError(ctx, REDISMODULE_ERRORMSG_WRONGTYPE);
+  }
+
+  // get the current value of the hash element
+  RedisModuleCallReply *rep =
+      RedisModule_Call(ctx, "HGET", "ss", argv[1], argv[2]);
+  RMUTIL_ASSERT_NOERROR(ctx, rep);
+
+  // set the new value of the element
+  RedisModuleCallReply *srep =
+      RedisModule_Call(ctx, "HSET", "sss", argv[1], argv[2], argv[3]);
+  RMUTIL_ASSERT_NOERROR(ctx, srep);
+
+  // if the value was null before - we just return null
+  if (RedisModule_CallReplyType(rep) == REDISMODULE_REPLY_NULL) {
+    RedisModule_ReplyWithNull(ctx);
+    return REDISMODULE_OK;
+  }
+
+  // forward the HGET reply to the client
+  RedisModule_ReplyWithCallReply(ctx, rep);
+  return REDISMODULE_OK;
+}
+
+// Test the the PARSE command
+int testParse(RedisModuleCtx *ctx) {
+
+  RedisModuleCallReply *r =
+      RedisModule_Call(ctx, "example.parse", "ccc", "SUM", "5", "2");
+  RMUtil_Assert(RedisModule_CallReplyType(r) == REDISMODULE_REPLY_INTEGER);
+  RMUtil_AssertReplyEquals(r, "7");
+
+  r = RedisModule_Call(ctx, "example.parse", "ccc", "PROD", "5", "2");
+  RMUtil_Assert(RedisModule_CallReplyType(r) == REDISMODULE_REPLY_INTEGER);
+  RMUtil_AssertReplyEquals(r, "10");
+  return 0;
+}
+
+// test the HGETSET command
+int testHgetSet(RedisModuleCtx *ctx) {
+  RedisModuleCallReply *r =
+      RedisModule_Call(ctx, "example.hgetset", "ccc", "foo", "bar", "baz");
+  RMUtil_Assert(RedisModule_CallReplyType(r) != REDISMODULE_REPLY_ERROR);
+
+  r = RedisModule_Call(ctx, "example.hgetset", "ccc", "foo", "bar", "bag");
+  RMUtil_Assert(RedisModule_CallReplyType(r) == REDISMODULE_REPLY_STRING);
+  RMUtil_AssertReplyEquals(r, "baz");
+  r = RedisModule_Call(ctx, "example.hgetset", "ccc", "foo", "bar", "bang");
+  RMUtil_AssertReplyEquals(r, "bag");
+  return 0;
+}
+
+// Unit test entry point for the module
+int TestModule(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) {
+  RedisModule_AutoMemory(ctx);
+
+  RMUtil_Test(testParse);
+  RMUtil_Test(testHgetSet);
+
+  RedisModule_ReplyWithSimpleString(ctx, "PASS");
+  return REDISMODULE_OK;
+}
+
+int RedisModule_OnLoad(RedisModuleCtx *ctx) {
+
+  // Register the module itself
+  if (RedisModule_Init(ctx, "example", 1, REDISMODULE_APIVER_1) ==
+      REDISMODULE_ERR) {
+    return REDISMODULE_ERR;
+  }
+
+  // register example.parse - the default registration syntax
+  if (RedisModule_CreateCommand(ctx, "example.parse", ParseCommand, "readonly",
+                                1, 1, 1) == REDISMODULE_ERR) {
+    return REDISMODULE_ERR;
+  }
+
+  // register example.hgetset - using the shortened utility registration macro
+  RMUtil_RegisterWriteCmd(ctx, "example.hgetset", HGetSetCommand);
+
+  // register the unit test
+  RMUtil_RegisterWriteCmd(ctx, "example.test", TestModule);
+
+  return REDISMODULE_OK;
+}