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Set socket buffers before establishing TCP connection

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The window scale option carried in SYN segment is computed from socket's
receive buffer size. So we need to set this buffer size before calling
connect or bind.
This commit is contained in:
Martin Hurton
2013-06-30 06:41:36 +02:00
parent aef2171e83
commit afe9afa2a5
5 changed files with 40 additions and 19 deletions
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19
src/stream_engine.cpp
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@@ -83,25 +83,6 @@ zmq::stream_engine_t::stream_engine_t (fd_t fd_, const options_t &options_,
// Put the socket into non-blocking mode.
unblock_socket (s);
// Set the socket buffer limits for the underlying socket.
if (options.sndbuf) {
rc = setsockopt (s, SOL_SOCKET, SO_SNDBUF,
(char*) &options.sndbuf, sizeof (int));
#ifdef ZMQ_HAVE_WINDOWS
wsa_assert (rc != SOCKET_ERROR);
#else
errno_assert (rc == 0);
#endif
}
if (options.rcvbuf) {
rc = setsockopt (s, SOL_SOCKET, SO_RCVBUF,
(char*) &options.rcvbuf, sizeof (int));
#ifdef ZMQ_HAVE_WINDOWS
wsa_assert (rc != SOCKET_ERROR);
#else
errno_assert (rc == 0);
#endif
}
#ifdef SO_NOSIGPIPE
// Make sure that SIGPIPE signal is not generated when writing to a