commit 675e01abed629f812212ef8c768dc55cd68b5079
Author: Simon McVittie <simon.mcvittie@collabora.co.uk>
Date:   2009-06-12 15:00:15 +0100

    fd.o #22182: callable example: make sure we have a ref to the media stream for the whole time we're invoking one of its methods
    
    I want closures, or something :'-(

diff --git a/examples/cm/callable/media-channel.c b/examples/cm/callable/media-channel.c
index aaacada..9d90a9e 100644
--- a/examples/cm/callable/media-channel.c
+++ b/examples/cm/callable/media-channel.c
@@ -796,10 +796,15 @@ media_remove_streams (TpSvcChannelTypeStreamedMedia *iface,
 
   for (i = 0; i < stream_ids->len; i++)
     {
+      /* It's necessary to ref the stream while calling its close method,
+       * since the callback for removed will cause us to lose our only
+       * reference to it. */
       guint id = g_array_index (stream_ids, guint, i);
-
-      example_callable_media_stream_close (
+      ExampleCallableMediaStream *stream = g_object_ref (
           g_hash_table_lookup (self->priv->streams, GUINT_TO_POINTER (id)));
+
+      example_callable_media_stream_close (stream);
+      g_object_unref (stream);
     }
 
   tp_svc_channel_type_streamed_media_return_from_remove_streams (context);
@@ -838,9 +843,11 @@ media_request_stream_direction (TpSvcChannelTypeStreamedMedia *iface,
    *
    * if (stream_direction == TP_MEDIA_STREAM_DIRECTION_NONE)
    *   {
+   *     g_object_ref (stream);
    *     example_callable_media_stream_close (stream);
    *     tp_svc_channel_type_streamed_media_return_from_request_stream_direction (
    *        context);
+   *     g_object_unref (stream);
    *     return;
    *   }
    *