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Handle the case where the pad change mid-switch.

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Original commit message from CVS:
Handle the case where the pad change mid-switch.
Handle the case where the entry poin is removed from the scheduler.
This commit is contained in:
Wim Taymans 2002-05-29 15:09:36 +00:00
parent fddb92b5e2
commit b07791a06b
1 changed files with 22 additions and 4 deletions
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26
gst/schedulers/gstbasicscheduler.c
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@ -300,13 +300,13 @@ gst_basic_scheduler_chain_wrapper (int argc, char *argv[])
}
} while (!GST_ELEMENT_IS_COTHREAD_STOPPING (element));
GST_FLAG_UNSET (element, GST_ELEMENT_COTHREAD_STOPPING);
gst_object_unref (GST_OBJECT (element));
/* this will return to cothread 0, so we need to unlock the current element */
if (element->post_run_func)
element->post_run_func (element);
GST_DEBUG_LEAVE ("(%d,'%s')", argc, name);
gst_object_unref (GST_OBJECT (element));
return 0;
}
@ -381,6 +381,8 @@ gst_basic_scheduler_chainhandler_proxy (GstPad * pad, GstBuffer * buf)
GST_DEBUG (GST_CAT_DATAFLOW, "new pad in mid-switch!");
pad = (GstPad *) GST_RPAD_PEER (peer);
}
parent = GST_PAD_PARENT (pad);
peer = GST_RPAD_PEER (pad);
}
if (loop_count == 0) {
@ -432,14 +434,15 @@ gst_basic_scheduler_gethandler_proxy (GstPad * pad)
GstElement *parent;
GstRealPad *peer;
GST_DEBUG_ENTER ("(%s:%s)", GST_DEBUG_PAD_NAME (pad));
parent = GST_PAD_PARENT (pad);
peer = GST_RPAD_PEER (pad);
GST_DEBUG_ENTER ("(%s:%s)", GST_DEBUG_PAD_NAME (pad));
/* FIXME this should be bounded */
/* we will loop switching to the peer until it's filled up the bufferpen */
while (GST_RPAD_BUFPEN (pad) == NULL) {
GST_DEBUG (GST_CAT_DATAFLOW, "switching to \"%s\": %p to fill bufpen",
GST_ELEMENT_NAME (parent),
GST_ELEMENT_THREADSTATE (parent));
@ -453,6 +456,8 @@ gst_basic_scheduler_gethandler_proxy (GstPad * pad)
if (!pad) {
gst_element_error (parent, "pad unconnected");
}
parent = GST_PAD_PARENT (pad);
peer = GST_RPAD_PEER (pad);
}
}
GST_DEBUG (GST_CAT_DATAFLOW, "done switching");
@ -962,6 +967,13 @@ gst_basic_scheduler_remove_element (GstScheduler * sched, GstElement * element)
GST_INFO (GST_CAT_SCHEDULING, "removing element \"%s\" from scheduler",
GST_ELEMENT_NAME (element));
/* if we are removing the currently scheduled element */
if (bsched->current == element) {
GST_FLAG_SET(element, GST_ELEMENT_COTHREAD_STOPPING);
if (element->post_run_func)
element->post_run_func (element);
bsched->current = NULL;
}
/* find what chain the element is in */
chain = gst_basic_scheduler_find_chain (bsched, element);
@ -974,7 +986,6 @@ gst_basic_scheduler_remove_element (GstScheduler * sched, GstElement * element)
/* unset the scheduler pointer in the element */
GST_ELEMENT_SCHED (element) = NULL;
}
}
@ -1265,8 +1276,15 @@ gst_basic_scheduler_iterate (GstScheduler * sched)
entry->pre_run_func (entry);
bsched->current = entry;
do_cothread_switch (GST_ELEMENT_THREADSTATE (entry));
/*
if (bsched->current && bsched->current->post_run_func) {
bsched->current->post_run_func (bsched->current);
}
*/
state = GST_SCHEDULER_STATE (sched);
/* if something changed, return - go on else */
if (GST_FLAG_IS_SET(bsched, GST_BASIC_SCHEDULER_CHANGE) &&