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- added GST_ELEMENT_ERROR flag to mark elements in error and to trap and avoid recursive error loops.

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Original commit message from CVS:
- added GST_ELEMENT_ERROR flag to mark elements in error and to trap and
avoid recursive error loops.
- moved state change signal back to original place as it causes lockups.
This commit is contained in:
Wim Taymans 2003-06-03 21:18:39 +00:00
parent a913f1fbc0
commit 0b1607785b
2 changed files with 31 additions and 10 deletions
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38
gst/gstelement.c
View file

@ -2075,6 +2075,15 @@ gst_element_error (GstElement *element, const gchar *error, ...)
va_end (var_args);
GST_INFO (GST_CAT_EVENT, "ERROR in %s: %s", GST_ELEMENT_NAME (element), string);
/* if the element was already in error, stop now */
if (GST_FLAG_IS_SET (element, GST_ELEMENT_ERROR)) {
GST_INFO (GST_CAT_EVENT, "recursive ERROR detected in %s", GST_ELEMENT_NAME (element));
g_free (string);
return;
}
GST_FLAG_SET (element, GST_ELEMENT_ERROR);
/* emit the signal, make sure the element stays available */
gst_object_ref (GST_OBJECT (element));
g_signal_emit (G_OBJECT (element), gst_element_signals[ERROR], 0, element, string);
@ -2084,8 +2093,16 @@ gst_element_error (GstElement *element, const gchar *error, ...)
gst_scheduler_error (element->sched, element);
}
if (GST_STATE (element) == GST_STATE_PLAYING)
gst_element_set_state (element, GST_STATE_PAUSED);
if (GST_STATE (element) == GST_STATE_PLAYING) {
GstElementStateReturn ret;
ret = gst_element_set_state (element, GST_STATE_PAUSED);
if (ret != GST_STATE_SUCCESS) {
g_warning ("could not PAUSE element \"%s\" after error, help!", GST_ELEMENT_NAME (element));
}
}
GST_FLAG_UNSET (element, GST_ELEMENT_ERROR);
/* cleanup */
gst_object_unref (GST_OBJECT (element));
@ -2281,11 +2298,6 @@ gst_element_set_state (GstElement *element, GstElementState state)
}
exit:
/* signal the state change in case somebody is waiting for us */
g_mutex_lock (element->state_mutex);
g_cond_signal (element->state_cond);
g_mutex_unlock (element->state_mutex);
return return_val;
}
@ -2458,14 +2470,20 @@ gst_element_change_state (GstElement *element)
}
}
g_signal_emit (G_OBJECT (element), gst_element_signals[STATE_CHANGE],
0, old_state, GST_STATE (element));
/* tell our parent about the state change */
if (parent && GST_IS_BIN (parent)) {
gst_bin_child_state_change (GST_BIN (parent), old_state,
GST_STATE (element), element);
}
/* at this point the state of the element could have changed again */
g_signal_emit (G_OBJECT (element), gst_element_signals[STATE_CHANGE],
0, old_state, GST_STATE (element));
/* signal the state change in case somebody is waiting for us */
g_mutex_lock (element->state_mutex);
g_cond_signal (element->state_cond);
g_mutex_unlock (element->state_mutex);
return GST_STATE_SUCCESS;

3
gst/gstelement.h
View file

@ -111,6 +111,9 @@ typedef enum {
/* ignore state changes from parent */
GST_ELEMENT_LOCKED_STATE,
/* element is in error */
GST_ELEMENT_ERROR,
/* use some padding for future expansion */
GST_ELEMENT_FLAG_LAST = GST_OBJECT_FLAG_LAST + 16
} GstElementFlags;