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- Factor out some error functions

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Original commit message from CVS:
- Factor out some error functions
- handle the cases where multipad get to multi-sink loop/chain based
elements are connected.
This commit is contained in:
Wim Taymans 2002-12-16 21:21:02 +00:00
parent 84e121f4dd
commit e7ccc2ec08
1 changed files with 43 additions and 13 deletions
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52
gst/schedulers/gstoptimalscheduler.c
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@ -123,6 +123,10 @@ typedef enum {
GST_OPT_SCHEDULER_GROUP_LOOP = 2,
} GstOptSchedulerGroupType;
#define GST_OPT_SCHEDULER_GROUP_SET_FLAG(group,flag) ((group)->flags |= (flag))
#define GST_OPT_SCHEDULER_GROUP_UNSET_FLAG(group,flag) ((group)->flags &= (flag))
#define GST_OPT_SCHEDULER_GROUP_IS_FLAG_SET(group,flag) ((group)->flags & (flag))
#define GST_OPT_SCHEDULER_GROUP_DISABLE(group) ((group)->flags |= GST_OPT_SCHEDULER_GROUP_DISABLED)
#define GST_OPT_SCHEDULER_GROUP_ENABLE(group) ((group)->flags &= ~GST_OPT_SCHEDULER_GROUP_DISABLED)
#define GST_OPT_SCHEDULER_GROUP_IS_ENABLED(group) (!((group)->flags & GST_OPT_SCHEDULER_GROUP_DISABLED))
@ -583,6 +587,13 @@ remove_from_group (GstOptSchedulerGroup *group, GstElement *element)
}
}
static void
group_error_handler (GstOptSchedulerGroup *group)
{
chain_group_set_enabled (group->chain, group, FALSE);
group->chain->sched->state = GST_OPT_SCHEDULER_STATE_ERROR;
}
/* this function enables/disables an element, it will set/clear a flag on the element
* and tells the chain that the group is enabled if all elements inside the group are
* enabled */
@ -621,6 +632,9 @@ group_element_set_enabled (GstOptSchedulerGroup *group, GstElement *element, gbo
static gboolean
schedule_group (GstOptSchedulerGroup *group)
{
if (!group->entry)
return FALSE;
#ifdef USE_COTHREADS
if (group->cothread)
do_cothread_switch (group->cothread);
@ -649,7 +663,10 @@ gst_opt_scheduler_schedule_run_queue (GstOptScheduler *osched)
GST_INFO (GST_CAT_SCHEDULING, "scheduling %p", group);
schedule_group (group);
if (!schedule_group (group)) {
g_warning ("error scheduling group %p", group);
group_error_handler (group);
}
GST_INFO (GST_CAT_SCHEDULING, "done scheduling %p", group);
}
@ -763,8 +780,7 @@ unkown_group_schedule_function (int argc, char *argv[])
GstOptSchedulerGroup *group = (GstOptSchedulerGroup *) argv;
g_warning ("(internal error) unkown group type %d, disabling\n", group->type);
chain_group_set_enabled (group->chain, group, FALSE);
group->chain->sched->state = GST_OPT_SCHEDULER_STATE_ERROR;
group_error_handler (group);
return 0;
}
@ -787,8 +803,7 @@ gst_opt_scheduler_loop_wrapper (GstPad *sinkpad, GstBuffer *buffer)
#ifdef USE_COTHREADS
if (GST_PAD_BUFLIST (GST_RPAD_PEER (sinkpad))) {
g_warning ("deadlock detected, disabling group %p", group);
chain_group_set_enabled (group->chain, group, FALSE);
group->chain->sched->state = GST_OPT_SCHEDULER_STATE_ERROR;
group_error_handler (group);
}
else {
GST_PAD_BUFLIST (GST_RPAD_PEER (sinkpad)) = g_list_append (GST_PAD_BUFLIST (GST_RPAD_PEER (sinkpad)), buffer);
@ -834,8 +849,7 @@ gst_opt_scheduler_get_wrapper (GstPad *srcpad)
}
else {
g_warning ("deadlock detected, disabling group %p", group);
chain_group_set_enabled (group->chain, group, FALSE);
group->chain->sched->state = GST_OPT_SCHEDULER_STATE_ERROR;
group_error_handler (group);
return NULL;
}
#endif
@ -1167,6 +1181,10 @@ static void
gst_opt_scheduler_error (GstScheduler *sched, GstElement *element)
{
GstOptScheduler *osched = GST_OPT_SCHEDULER_CAST (sched);
GstOptSchedulerGroup *group;
get_group (element, &group);
if (group)
group_error_handler (group);
osched->state = GST_OPT_SCHEDULER_STATE_ERROR;
}
@ -1200,13 +1218,19 @@ gst_opt_scheduler_pad_connect (GstScheduler *sched, GstPad *srcpad, GstPad *sink
/* this could be tricky, the get based source could
* already be part of a loop based group in another pad,
* we assert on that for now */
if (GST_ELEMENT_SCHED_CONTEXT (element1) &&
if (GST_ELEMENT_SCHED_CONTEXT (element1) != NULL &&
GST_ELEMENT_SCHED_GROUP (element1) != NULL)
{
g_error ("internal error: cannot schedule get to loop with get in group");
GstOptSchedulerGroup *group = GST_ELEMENT_SCHED_GROUP (element1);
/* if the loop based element is the entry point we're ok, if it
* isn't then we have multiple loop based elements in this group */
if (group->entry != element2) {
g_error ("internal error: cannot schedule get to loop in multi-loop based group");
return;
}
}
}
else
type = GST_OPT_CHAIN_TO_LOOP;
}
@ -1215,13 +1239,19 @@ gst_opt_scheduler_pad_connect (GstScheduler *sched, GstPad *srcpad, GstPad *sink
type = GST_OPT_GET_TO_CHAIN;
/* the get based source could already be part of a loop
* based group in another pad, we assert on that for now */
if (GST_ELEMENT_SCHED_CONTEXT (element1) &&
if (GST_ELEMENT_SCHED_CONTEXT (element1) != NULL &&
GST_ELEMENT_SCHED_GROUP (element1) != NULL)
{
g_error ("internal error: cannot schedule get to loop with get in group");
GstOptSchedulerGroup *group = GST_ELEMENT_SCHED_GROUP (element1);
/* if the get based element is the entry point we're ok, if it
* isn't then we have a mixed loop/chain based group */
if (group->entry != element1) {
g_error ("internal error: cannot schedule get to chain with mixed loop/chain based group");
return;
}
}
}
else
type = GST_OPT_CHAIN_TO_CHAIN;
}