From 1cd9cbe9b404e6c3e73dc0239d11547a5e2c02c4 Mon Sep 17 00:00:00 2001 From: Mark Kettenis Date: Sat, 29 Mar 2014 23:51:49 +0100 Subject: Increase UNIX socket buffer size Some systems provide a really small default buffer size for UNIX sockets. Bump it up to 64k if necessary such that large transfers (such as XGetImage() on a 8-megapixel image) don't take tens of seconds. Signed-off-by: Hans de Goede --- Xtranssock.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/Xtranssock.c b/Xtranssock.c index fdf1dd7..6cde146 100644 --- a/Xtranssock.c +++ b/Xtranssock.c @@ -445,6 +445,27 @@ TRANS(SocketOpen) (int i, int type) } #endif + /* + * Some systems provide a really small default buffer size for + * UNIX sockets. Bump it up a bit such that large transfers don't + * proceed at glacial speed. + */ +#ifdef SO_SNDBUF + if (Sockettrans2devtab[i].family == AF_UNIX) + { + SOCKLEN_T len = sizeof (int); + int val; + + if (getsockopt (ciptr->fd, SOL_SOCKET, SO_SNDBUF, + (char *) &val, &len) == 0 && val < 64 * 1024) + { + val = 64 * 1024; + setsockopt (ciptr->fd, SOL_SOCKET, SO_SNDBUF, + (char *) &val, sizeof (int)); + } + } +#endif + return ciptr; } -- cgit v1.2.1