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gst/base/gstbasesink.c (gst_base_sink_activate_pull): Fix a race condition whereby the pad's task function is entered...

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Original commit message from CVS:
2005-09-07  Andy Wingo  <wingo@pobox.com>

* gst/base/gstbasesink.c (gst_base_sink_activate_pull): Fix a race
condition whereby the pad's task function is entered before the
pad_mode variable was set.
This commit is contained in:
Andy Wingo 2005-09-07 10:06:56 +00:00
parent 9f96921e90
commit c477a458d7
3 changed files with 24 additions and 4 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2005-09-07 Andy Wingo <wingo@pobox.com>
* gst/base/gstbasesink.c (gst_base_sink_activate_pull): Fix a race
condition whereby the pad's task function is entered before the
pad_mode variable was set.
2005-09-07 Jan Schmidt <thaytan@mad.scientist.com>
* gst/gstpad.c: (gst_pad_alloc_buffer):

11
gst/base/gstbasesink.c
View file

@ -1232,21 +1232,28 @@ gst_base_sink_activate_pull (GstPad * pad, gboolean active)
if (G_UNLIKELY (peer == NULL)) {
g_warning ("Trying to activate pad in pull mode, but no peer");
result = FALSE;
basesink->pad_mode = GST_ACTIVATE_NONE;
} else {
if (gst_pad_activate_pull (peer, TRUE)) {
basesink->have_newsegment = TRUE;
basesink->segment_start = basesink->segment_stop = 0;
/* set the pad mode before starting the task so that it's in the
correct state for the new thread... */
basesink->pad_mode = GST_ACTIVATE_PULL;
result =
gst_pad_start_task (pad, (GstTaskFunction) gst_base_sink_loop,
pad);
/* but if starting the thread fails, set it back */
if (!result)
basesink->pad_mode = GST_ACTIVATE_NONE;
} else {
GST_DEBUG_OBJECT (pad, "Failed to activate peer in pull mode");
result = FALSE;
basesink->pad_mode = GST_ACTIVATE_NONE;
}
gst_object_unref (peer);
}
basesink->pad_mode = result ? GST_ACTIVATE_PULL : GST_ACTIVATE_NONE;
}
} else {
if (G_UNLIKELY (basesink->pad_mode != GST_ACTIVATE_PULL)) {

11
libs/gst/base/gstbasesink.c
View file

@ -1232,21 +1232,28 @@ gst_base_sink_activate_pull (GstPad * pad, gboolean active)
if (G_UNLIKELY (peer == NULL)) {
g_warning ("Trying to activate pad in pull mode, but no peer");
result = FALSE;
basesink->pad_mode = GST_ACTIVATE_NONE;
} else {
if (gst_pad_activate_pull (peer, TRUE)) {
basesink->have_newsegment = TRUE;
basesink->segment_start = basesink->segment_stop = 0;
/* set the pad mode before starting the task so that it's in the
correct state for the new thread... */
basesink->pad_mode = GST_ACTIVATE_PULL;
result =
gst_pad_start_task (pad, (GstTaskFunction) gst_base_sink_loop,
pad);
/* but if starting the thread fails, set it back */
if (!result)
basesink->pad_mode = GST_ACTIVATE_NONE;
} else {
GST_DEBUG_OBJECT (pad, "Failed to activate peer in pull mode");
result = FALSE;
basesink->pad_mode = GST_ACTIVATE_NONE;
}
gst_object_unref (peer);
}
basesink->pad_mode = result ? GST_ACTIVATE_PULL : GST_ACTIVATE_NONE;
}
} else {
if (G_UNLIKELY (basesink->pad_mode != GST_ACTIVATE_PULL)) {