gstreamer/libs/gst/net/gstnetutils.c
Robert Rosengren 5d885b9dc7 netutils: Add util for setting socket DSCP
Util function for setting QoS DSCP added, to remove duplicated code in
netclientclock and nettimeprovider. Fix build error if missing IP_TOS.

https://bugzilla.gnome.org/show_bug.cgi?id=784737
2017-11-01 11:00:47 +02:00

66 lines
1.7 KiB
C

/* GStreamer
* Copyright (C) 2017 Sebastian Dröge <sebastian@centricular.com>
* Copyright (C) 2017 Robert Rosengren <robertr@axis.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstnetutils.h"
#include <gst/gstinfo.h>
#include <errno.h>
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifndef G_OS_WIN32
#include <netinet/in.h>
#endif
/**
* gst_net_time_packet_util_set_dscp:
* @socket: Socket to configure
* @qos_dscp: QoS DSCP value
*
* Configures IP_TOS value of socket, i.e. sets QoS DSCP.
*
* Returns: TRUE if successful, FALSE in case an error occurred.
*/
gboolean
gst_net_utils_set_socket_dscp (GSocket * socket, gint qos_dscp)
{
gboolean ret = FALSE;
#ifdef IP_TOS
gint tos, fd;
fd = g_socket_get_fd (socket);
/* Extract and shift 6 bits of DSFIELD */
tos = (qos_dscp & 0x3f) << 2;
if (setsockopt (fd, IPPROTO_IP, IP_TOS, &tos, sizeof (tos)) < 0) {
GST_ERROR ("could not set TOS: %s", g_strerror (errno));
} else {
ret = TRUE;
}
#endif
return ret;
}