work in progress to prevent SIGPIPE signals (this is going to fix #79)

src/tcpconnected.h

@@ -189,7 +189,7 @@ public:
         if (_out) return _out.add(buffer, size);
 
         // there is no buffer, send the data right away
-        auto result = write(_socket, buffer, size);
+        auto result = ::send(_socket, buffer, size, MSG_NOSIGNAL);
 
         // number of bytes sent
         size_t bytes = result < 0 ? 0 : result;

src/tcpoutbuffer.h

@@ -226,6 +226,7 @@ public:
             }
             
             // send the data
+            // @todo use sendmsg() with a MSG_NOSIG flag
             auto result = writev(socket, (const struct iovec *)&buffer, index);
 
             // skip on error, or when nothing was written