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GSocket: Add support for source-specific multicast (RFC 4604)

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This commit is contained in:
Sebastian Dröge 2012-01-13 12:53:50 +01:00
parent 97f25892ea
commit 03b40522df
2 changed files with 19 additions and 5 deletions
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20
gio/gsocket.c
View File

@ -47,8 +47,6 @@
#include <sys/uio.h>
#endif
#include <net/if.h>
#include "gcancellable.h"
#include "gioenumtypes.h"
#include "ginetaddress.h"
@ -1690,6 +1688,7 @@ g_socket_bind (GSocket *socket,
static gboolean
g_socket_multicast_group_operation (GSocket *socket,
GInetAddress *group,
gboolean source_specific,
const gchar *interface,
gboolean join_group,
GError **error)
@ -1725,6 +1724,9 @@ g_socket_multicast_group_operation (GSocket *socket,
mc_req.imr_interface.s_addr = g_htonl (INADDR_ANY);
#endif
if (source_specific)
optname = join_group ? IP_ADD_SOURCE_MEMBERSHIP : IP_DROP_SOURCE_MEMBERSHIP;
else
optname = join_group ? IP_ADD_MEMBERSHIP : IP_DROP_MEMBERSHIP;
result = setsockopt (socket->priv->fd, IPPROTO_IP, optname,
&mc_req, sizeof (mc_req));
@ -1766,6 +1768,7 @@ g_socket_multicast_group_operation (GSocket *socket,
* @socket: a #GSocket.
* @group: a #GInetAddress specifying the group address to join.
* @interface: Interface to use
* @source_specific: %TRUE if source-specific multicast should be used
* @error: #GError for error reporting, or %NULL to ignore.
*
* Registers @socket to receive multicast messages sent to @group.
@ -1773,6 +1776,9 @@ g_socket_multicast_group_operation (GSocket *socket,
* been bound to an appropriate interface and port with
* g_socket_bind().
*
* If @source_specific is %TRUE, source-specific multicast as defined
* in RFC 4604 is used.
*
* Returns: %TRUE on success, %FALSE on error.
*
* Since: 2.32
@ -1780,10 +1786,11 @@ g_socket_multicast_group_operation (GSocket *socket,
gboolean
g_socket_join_multicast_group (GSocket *socket,
GInetAddress *group,
gboolean source_specific,
const gchar *interface,
GError **error)
{
return g_socket_multicast_group_operation (socket, group, interface, TRUE, error);
return g_socket_multicast_group_operation (socket, group, source_specific, interface, TRUE, error);
}
/**
@ -1791,11 +1798,15 @@ g_socket_join_multicast_group (GSocket *socket,
* @socket: a #GSocket.
* @group: a #GInetAddress specifying the group address to leave.
* @interface: Interface to use
* @source_specific: %TRUE if source-specific multicast should be used
* @error: #GError for error reporting, or %NULL to ignore.
*
* Removes @socket from the multicast group @group (while still
* allowing it to receive unicast messages).
*
* If @source_specific is %TRUE, source-specific multicast as defined
* in RFC 4604 is used.
*
* Returns: %TRUE on success, %FALSE on error.
*
* Since: 2.32
@ -1803,10 +1814,11 @@ g_socket_join_multicast_group (GSocket *socket,
gboolean
g_socket_leave_multicast_group (GSocket *socket,
GInetAddress *group,
gboolean source_specific,
const gchar *interface,
GError **error)
{
return g_socket_multicast_group_operation (socket, group, interface, FALSE, error);
return g_socket_multicast_group_operation (socket, group, source_specific, interface, FALSE, error);
}
/**

2
gio/gsocket.h
View File

@ -113,10 +113,12 @@ gboolean g_socket_bind (GSocket
GError **error);
gboolean g_socket_join_multicast_group (GSocket *socket,
GInetAddress *group,
gboolean source_specific,
const gchar *interface,
GError **error);
gboolean g_socket_leave_multicast_group (GSocket *socket,
GInetAddress *group,
gboolean source_specific,
const gchar *interface,
GError **error);
gboolean g_socket_connect (GSocket *socket,