From 4427c3f43a87c2e0c784fda6be1b9715be820733 Mon Sep 17 00:00:00 2001 From: Susant Sahani Date: Mon, 28 Jul 2014 12:18:29 +0530 Subject: socket: add support for tcp nagle This patch adds support for TCP TCP_NODELAY socket option. This can be configured via NoDelay conf parameter. TCP Nagle's algorithm works by combining a number of small outgoing messages, and sending them all at once. This controls the TCP_NODELAY socket option. --- src/core/socket.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'src/core/socket.c') diff --git a/src/core/socket.c b/src/core/socket.c index 646887d803..5af15964ff 100644 --- a/src/core/socket.c +++ b/src/core/socket.c @@ -480,6 +480,7 @@ static void socket_dump(Unit *u, FILE *f, const char *prefix) { "%sSocketMode: %04o\n" "%sDirectoryMode: %04o\n" "%sKeepAlive: %s\n" + "%sNoDelay: %s\n" "%sFreeBind: %s\n" "%sTransparent: %s\n" "%sBroadcast: %s\n" @@ -494,6 +495,7 @@ static void socket_dump(Unit *u, FILE *f, const char *prefix) { prefix, s->socket_mode, prefix, s->directory_mode, prefix, yes_no(s->keep_alive), + prefix, yes_no(s->no_delay), prefix, yes_no(s->free_bind), prefix, yes_no(s->transparent), prefix, yes_no(s->broadcast), @@ -790,6 +792,12 @@ static void socket_apply_socket_options(Socket *s, int fd) { log_warning_unit(UNIT(s)->id, "SO_KEEPALIVE failed: %m"); } + if (s->no_delay) { + int b = s->no_delay; + if (setsockopt(fd, SOL_TCP, TCP_NODELAY, &b, sizeof(b)) < 0) + log_warning_unit(UNIT(s)->id, "TCP_NODELAY failed: %m"); + } + if (s->broadcast) { int one = 1; if (setsockopt(fd, SOL_SOCKET, SO_BROADCAST, &one, sizeof(one)) < 0) -- cgit v1.2.3-54-g00ecf