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docs/pwg/advanced-types.xml: Well done to Michael for catching my deliberate introduction of this spelling mistake.

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Original commit message from CVS:
* docs/pwg/advanced-types.xml:
Well done to Michael for catching my deliberate introduction
of this spelling mistake.
* gst/gstbin.c: (gst_bin_remove_func), (bin_bus_handler):
* gst/gstelement.h:
Add GST_ELEMENT_UNPARENTING to prevent races so that we can
unlink pads before removing the element from the bin.
This commit is contained in:
Jan Schmidt 2005-08-24 15:10:41 +00:00
parent 76fffe8fc5
commit 8aa248c92b
4 changed files with 39 additions and 9 deletions
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10
ChangeLog
View file

@ -1,3 +1,13 @@
2005-08-24 Jan Schmidt <thaytan@mad.scientist.com>
* docs/pwg/advanced-types.xml:
Well done to Michael for catching my deliberate introduction
of this spelling mistake.
* gst/gstbin.c: (gst_bin_remove_func), (bin_bus_handler):
* gst/gstelement.h:
Add GST_ELEMENT_UNPARENTING to prevent races so that we can
unlink pads before removing the element from the bin.
2005-08-24 Andy Wingo <wingo@pobox.com>
* gst/gst.c (parse_debug_list): Accept e.g. GST_DEBUG=4 to mean

2
docs/pwg/advanced-types.xml
View file

@ -346,7 +346,7 @@ plugin_init (GstPlugin *plugin)
<entry>
Note that some people think that this property is very ugly,
whereas others think it is vital for the use of &GStreamer; in
proffessional audio applications. The special value zero is
professional audio applications. The special value zero is
reserved and implies that size is variable between buffers.
</entry>
</row>

30
gst/gstbin.c
View file

@ -582,11 +582,22 @@ gst_bin_remove_func (GstBin * bin, GstElement * element)
gchar *elem_name;
GstIterator *it;
/* grab element name so we can print it */
GST_LOCK (element);
/* Check if the element is already being removed and immediately
* return */
if (G_UNLIKELY (GST_FLAG_IS_SET (element, GST_ELEMENT_UNPARENTING)))
goto already_removing;
GST_FLAG_SET (element, GST_ELEMENT_UNPARENTING);
/* grab element name so we can print it */
elem_name = g_strdup (GST_ELEMENT_NAME (element));
GST_UNLOCK (element);
/* unlink all linked pads */
it = gst_element_iterate_pads (element);
gst_iterator_foreach (it, (GFunc) unlink_pads, element);
gst_iterator_free (it);
GST_LOCK (bin);
/* the element must be in the bin's list of children */
if (G_UNLIKELY (g_list_find (bin->children, element) == NULL))
@ -615,11 +626,6 @@ gst_bin_remove_func (GstBin * bin, GstElement * element)
elem_name);
g_free (elem_name);
/* unlink all linked pads */
it = gst_element_iterate_pads (element);
gst_iterator_foreach (it, (GFunc) unlink_pads, element);
gst_iterator_free (it);
gst_element_set_bus (element, NULL);
/* unlock any waiters for the state change. It is possible that
@ -631,11 +637,16 @@ gst_bin_remove_func (GstBin * bin, GstElement * element)
GST_STATE_UNLOCK (element);
/* we ref here because after the _unparent() the element can be disposed
* and we still need it to fire a signal. */
* and we still need it to reset the UNPARENTING flag and fire a signal. */
gst_object_ref (element);
gst_object_unparent (GST_OBJECT_CAST (element));
GST_LOCK (element);
GST_FLAG_UNSET (element, GST_ELEMENT_UNPARENTING);
GST_UNLOCK (element);
g_signal_emit (G_OBJECT (bin), gst_bin_signals[ELEMENT_REMOVED], 0, element);
/* element is really out of our control now */
gst_object_unref (element);
@ -650,6 +661,11 @@ not_in_bin:
g_free (elem_name);
return FALSE;
}
already_removing:
{
GST_UNLOCK (element);
return FALSE;
}
}
/**

6
gst/gstelement.h
View file

@ -93,10 +93,14 @@ typedef enum
{
/* ignore state changes from parent */
GST_ELEMENT_LOCKED_STATE,
/* the element is a sink */
GST_ELEMENT_IS_SINK,
/* Child is being removed from the parent bin. gst_bin_remove on a
* child already being removed immediately returns FALSE */
GST_ELEMENT_UNPARENTING,
/* use some padding for future expansion */
GST_ELEMENT_FLAG_LAST = GST_OBJECT_FLAG_LAST + 16
} GstElementFlags;