116 lines
2.4 KiB
C
116 lines
2.4 KiB
C
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/**
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* TcpState.h
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*
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* Base class / interface of the various states of the TCP connection
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*
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* @author Emiel Bruijntjes <emiel.bruijntjes@copernica.com>
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* @copyright 2015 Copernica BV
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*/
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/**
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* Include guard
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*/
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#pragma once
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/**
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* Set up namespace
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*/
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namespace AMQP {
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/**
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* Class definition
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*/
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class TcpState
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{
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protected:
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/**
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* Parent TcpConnection object as is seen by the user
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* @var TcpConnection
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*/
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TcpConnection *_connection;
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/**
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* User-supplied handler
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* @var TcpHandler
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*/
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TcpHandler *_handler;
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protected:
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/**
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* Protected constructor
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* @param connection Original TCP connection object
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* @param handler User-supplied handler class
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*/
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TcpState(TcpConnection *connection, TcpHandler *handler) :
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_connection(connection), _handler(handler) {}
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/**
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* Protected "copy" constructor
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* @param state Original TcpState object
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*/
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TcpState(const TcpState *state) :
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_connection(state->_connection), _handler(state->_handler) {}
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public:
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/**
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* Virtual destructor
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*/
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virtual ~TcpState() = default;
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/**
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* Process the filedescriptor in the object
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* @param fd The filedescriptor that is active
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* @param flags AMQP::readable and/or AMQP::writable
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* @return New implementation object
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*/
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virtual TcpState *process(int fd, int flags)
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{
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// default implementation does nothing and preserves same implementation
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return this;
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}
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/**
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* Send data over the connection
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* @param buffer buffer to send
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* @param size size of the buffer
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*/
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virtual void send(const char *buffer, size_t size)
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{
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// default does nothing
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}
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/**
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* Report to the handler that the object is in an error state
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* @param error
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*/
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void reportError(const char *error)
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{
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// pass to handler
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_handler->onError(_connection, error);
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}
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/**
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* Report to the handler that the connection is ready for use
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*/
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void reportConnected()
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{
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// pass to handler
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_handler->onConnected(_connection);
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}
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/**
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* Report to the handler that the connection was nicely closed
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*/
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void reportClosed()
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{
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// pass to handler
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_handler->onClosed(_connection);
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}
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};
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/**
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* End of namespace
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*/
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}
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