srt: Refactor gst_srt_*_sink_send_buffer, extract send

https://bugzilla.gnome.org/show_bug.cgi?id=793503
diff --git a/ext/srt/gstsrtclientsink.c b/ext/srt/gstsrtclientsink.c
index 9856c43..3bafb1e 100644
--- a/ext/srt/gstsrtclientsink.c
+++ b/ext/srt/gstsrtclientsink.c
@@ -168,20 +168,29 @@
 }
 
 static gboolean
+send_buffer_internal (GstSRTBaseSink * sink,
+    const GstMapInfo * mapinfo, gpointer user_data)
+{
+  SRTSOCKET sock = GPOINTER_TO_INT (user_data);
+
+  if (srt_sendmsg2 (sock, (char *) mapinfo->data, mapinfo->size,
+          0) == SRT_ERROR) {
+    GST_ELEMENT_ERROR (sink, RESOURCE, WRITE, NULL,
+        ("%s", srt_getlasterror_str ()));
+    return FALSE;
+  }
+
+  return TRUE;
+}
+
+static gboolean
 gst_srt_client_sink_send_buffer (GstSRTBaseSink * sink,
     const GstMapInfo * mapinfo)
 {
   GstSRTClientSink *self = GST_SRT_CLIENT_SINK (sink);
   GstSRTClientSinkPrivate *priv = GST_SRT_CLIENT_SINK_GET_PRIVATE (self);
 
-  if (srt_sendmsg2 (priv->sock, (char *) mapinfo->data, mapinfo->size,
-          0) == SRT_ERROR) {
-    GST_ELEMENT_ERROR (self, RESOURCE, WRITE, NULL,
-        ("%s", srt_getlasterror_str ()));
-    return FALSE;
-  }
-
-  return TRUE;
+  return send_buffer_internal (sink, mapinfo, GINT_TO_POINTER (priv->sock));
 }
 
 static gboolean
diff --git a/ext/srt/gstsrtserversink.c b/ext/srt/gstsrtserversink.c
index acbda90..f7b76cf 100644
--- a/ext/srt/gstsrtserversink.c
+++ b/ext/srt/gstsrtserversink.c
@@ -391,6 +391,21 @@
 }
 
 static gboolean
+send_buffer_internal (GstSRTBaseSink * sink,
+    const GstMapInfo * mapinfo, gpointer user_data)
+{
+  SRTClient *client = user_data;
+
+  if (srt_sendmsg2 (client->sock, (char *) mapinfo->data, mapinfo->size,
+          0) == SRT_ERROR) {
+    GST_WARNING_OBJECT (sink, "%s", srt_getlasterror_str ());
+    return FALSE;
+  }
+
+  return TRUE;
+}
+
+static gboolean
 gst_srt_server_sink_send_buffer (GstSRTBaseSink * sink,
     const GstMapInfo * mapinfo)
 {
@@ -403,17 +418,19 @@
     SRTClient *client = clients->data;
     clients = clients->next;
 
-    if (srt_sendmsg2 (client->sock, (char *) mapinfo->data, mapinfo->size,
-            0) == SRT_ERROR) {
-      GST_WARNING_OBJECT (self, "%s", srt_getlasterror_str ());
 
-      priv->clients = g_list_remove (priv->clients, client);
-      GST_OBJECT_UNLOCK (sink);
-      g_signal_emit (self, signals[SIG_CLIENT_REMOVED], 0, client->sock,
-          client->sockaddr);
-      srt_client_free (client);
-      GST_OBJECT_LOCK (sink);
-    }
+    if (!send_buffer_internal (sink, mapinfo, client))
+      goto err;
+
+    continue;
+
+  err:
+    priv->clients = g_list_remove (priv->clients, client);
+    GST_OBJECT_UNLOCK (sink);
+    g_signal_emit (self, signals[SIG_CLIENT_REMOVED], 0, client->sock,
+        client->sockaddr);
+    srt_client_free (client);
+    GST_OBJECT_LOCK (sink);
   }
   GST_OBJECT_UNLOCK (sink);