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gst/schedulers/gstoptimalscheduler.c: Fixes to maintain internal consistency of the scheduler data structures.
Original commit message from CVS: * gst/schedulers/gstoptimalscheduler.c: (add_to_chain), (remove_from_chain), (chain_group_set_enabled), (add_to_group), (merge_groups), (setup_group_scheduler), (group_inc_links_for_element), (gst_opt_scheduler_iterate), (gst_opt_scheduler_show): Fixes to maintain internal consistency of the scheduler data structures. - adding an enabled group to a chain should increment the number of enabled elements in that chain. - removing an enabled group from a chain could disable the chain. - removing a disabled group from a chain could enable the chain. - add g_assert when internal inconsistency is detected. - adding an element to a group could increase the number of links this group has with other groups. - merging two groups also merges the chains. - also show group links in the _show method. Please report regressions ASAP, so I can fix them.
This commit is contained in:
Wim Taymans
parent
7193393c18
commit
6187bf80e7
2 changed files with 114 additions and 10 deletions
22
ChangeLog
22
ChangeLog
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@ -1,3 +1,25 @@
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2004-05-27 Wim Taymans <wim@fluendo.com>
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* gst/schedulers/gstoptimalscheduler.c: (add_to_chain),
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(remove_from_chain), (chain_group_set_enabled), (add_to_group),
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(merge_groups), (setup_group_scheduler),
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(group_inc_links_for_element), (gst_opt_scheduler_iterate),
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(gst_opt_scheduler_show):
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Fixes to maintain internal consistency of the scheduler data
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structures.
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- adding an enabled group to a chain should increment the
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number of enabled elements in that chain.
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- removing an enabled group from a chain could disable the
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chain.
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- removing a disabled group from a chain could enable the
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chain.
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- add g_assert when internal inconsistency is detected.
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- adding an element to a group could increase the number of
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links this group has with other groups.
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- merging two groups also merges the chains.
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- also show group links in the _show method.
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2004-05-25 Benjamin Otte <in7y118@public.uni-hamburg.de>
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* gst/gstcaps.c: (gst_caps_structure_simplify):
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@ -218,6 +218,8 @@ static GstOptSchedulerGroup *remove_from_group (GstOptSchedulerGroup * group,
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GstElement * element);
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static void group_dec_links_for_element (GstOptSchedulerGroup * group,
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GstElement * element);
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static void group_inc_links_for_element (GstOptSchedulerGroup * group,
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GstElement * element);
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static GstOptSchedulerGroup *merge_groups (GstOptSchedulerGroup * group1,
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GstOptSchedulerGroup * group2);
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static void setup_group_scheduler (GstOptScheduler * osched,
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@ -527,6 +529,8 @@ destroy_chain (GstOptSchedulerChain * chain)
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static GstOptSchedulerChain *
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add_to_chain (GstOptSchedulerChain * chain, GstOptSchedulerGroup * group)
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{
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gboolean enabled;
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GST_LOG ("adding group %p to chain %p", group, chain);
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g_assert (group->chain == NULL);
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@ -534,13 +538,17 @@ add_to_chain (GstOptSchedulerChain * chain, GstOptSchedulerGroup * group)
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group = ref_group (group);
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group->chain = ref_chain (chain);
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chain->groups = g_slist_prepend (chain->groups, group);
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chain->num_groups++;
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if (GST_OPT_SCHEDULER_GROUP_IS_ENABLED (group)) {
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chain_group_set_enabled (chain, group, TRUE);
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enabled = GST_OPT_SCHEDULER_GROUP_IS_ENABLED (group);
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if (enabled) {
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chain->num_enabled++;
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if (chain->num_enabled == chain->num_groups) {
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GST_LOG ("enabling chain %p after adding of enabled group", chain);
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GST_OPT_SCHEDULER_CHAIN_ENABLE (chain);
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}
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}
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/* queue a resort of the group list, which determines which group will be run
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@ -553,6 +561,8 @@ add_to_chain (GstOptSchedulerChain * chain, GstOptSchedulerGroup * group)
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static GstOptSchedulerChain *
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remove_from_chain (GstOptSchedulerChain * chain, GstOptSchedulerGroup * group)
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{
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gboolean enabled;
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GST_LOG ("removing group %p from chain %p", group, chain);
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if (!chain)
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@ -561,6 +571,8 @@ remove_from_chain (GstOptSchedulerChain * chain, GstOptSchedulerGroup * group)
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g_assert (group);
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g_assert (group->chain == chain);
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enabled = GST_OPT_SCHEDULER_GROUP_IS_ENABLED (group);
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group->chain = NULL;
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chain->groups = g_slist_remove (chain->groups, group);
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chain->num_groups--;
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@ -568,6 +580,24 @@ remove_from_chain (GstOptSchedulerChain * chain, GstOptSchedulerGroup * group)
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if (chain->num_groups == 0)
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chain = unref_chain (chain);
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else {
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/* removing an enabled group from the chain decrements the
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* enabled counter */
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if (enabled) {
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chain->num_enabled--;
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if (chain->num_enabled == 0) {
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GST_LOG ("disabling chain %p after removal of the only enabled group",
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chain);
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GST_OPT_SCHEDULER_CHAIN_DISABLE (chain);
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}
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} else {
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if (chain->num_enabled == chain->num_groups) {
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GST_LOG ("enabling chain %p after removal of the only disabled group",
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chain);
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GST_OPT_SCHEDULER_CHAIN_ENABLE (chain);
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}
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}
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}
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GST_OPT_SCHEDULER_CHAIN_SET_DIRTY (chain);
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@ -677,6 +707,8 @@ static void
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chain_group_set_enabled (GstOptSchedulerChain * chain,
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GstOptSchedulerGroup * group, gboolean enabled)
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{
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gboolean oldstate;
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g_assert (group != NULL);
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g_assert (chain != NULL);
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@ -684,14 +716,21 @@ chain_group_set_enabled (GstOptSchedulerChain * chain,
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("request to %d group %p in chain %p, have %d groups enabled out of %d",
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enabled, group, chain, chain->num_enabled, chain->num_groups);
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oldstate = (GST_OPT_SCHEDULER_GROUP_IS_ENABLED (group) ? TRUE : FALSE);
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if (oldstate == enabled) {
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GST_LOG ("group %p in chain %p was in correct state", group, chain);
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return;
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}
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if (enabled)
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GST_OPT_SCHEDULER_GROUP_ENABLE (group);
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else
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GST_OPT_SCHEDULER_GROUP_DISABLE (group);
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if (enabled) {
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if (chain->num_enabled < chain->num_groups)
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chain->num_enabled++;
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g_assert (chain->num_enabled < chain->num_groups);
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chain->num_enabled++;
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GST_DEBUG ("enable group %p in chain %p, now %d groups enabled out of %d",
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group, chain, chain->num_enabled, chain->num_groups);
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@ -705,9 +744,9 @@ chain_group_set_enabled (GstOptSchedulerChain * chain,
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GST_OPT_SCHEDULER_CHAIN_ENABLE (chain);
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}
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} else {
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if (chain->num_enabled > 0)
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chain->num_enabled--;
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g_assert (chain->num_enabled > 0);
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chain->num_enabled--;
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GST_DEBUG ("disable group %p in chain %p, now %d groups enabled out of %d",
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group, chain, chain->num_enabled, chain->num_groups);
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@ -823,6 +862,10 @@ add_to_group (GstOptSchedulerGroup * group, GstElement * element)
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g_assert (GST_ELEMENT_SCHED_GROUP (element) == NULL);
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/* first increment the links that this group has with other groups through
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* this element */
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group_inc_links_for_element (group, element);
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/* Ref the group... */
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GST_ELEMENT_SCHED_GROUP (element) = ref_group (group);
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@ -893,6 +936,9 @@ merge_groups (GstOptSchedulerGroup * group1, GstOptSchedulerGroup * group2)
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if (group1 == group2 || group2 == NULL)
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return group1;
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/* make sure they end up in the same chain */
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merge_chains (group1->chain, group2->chain);
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while (group2 && group2->elements) {
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GstElement *element = (GstElement *) group2->elements->data;
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@ -2092,8 +2138,8 @@ group_can_reach_group (GstOptSchedulerGroup * group,
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/*
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* Go through all the pads of the given element and decrement the links that
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* this group has with the group of the element. This function is mainly used
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* to update the group connections before we remove element from the group.
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* this group has with the group of the peer element. This function is mainly used
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* to update the group connections before we remove the element from the group.
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*/
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static void
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group_dec_links_for_element (GstOptSchedulerGroup * group, GstElement * element)
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@ -2112,6 +2158,28 @@ group_dec_links_for_element (GstOptSchedulerGroup * group, GstElement * element)
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}
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}
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/*
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* Go through all the pads of the given element and increment the links that
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* this group has with the group of the peer element. This function is mainly used
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* to update the group connections before we add the element to the group.
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*/
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static void
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group_inc_links_for_element (GstOptSchedulerGroup * group, GstElement * element)
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{
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GList *l;
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GstPad *pad;
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GstOptSchedulerGroup *peer_group;
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for (l = GST_ELEMENT_PADS (element); l; l = l->next) {
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pad = (GstPad *) l->data;
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if (GST_IS_REAL_PAD (pad) && GST_PAD_PEER (pad)) {
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get_group (GST_PAD_PARENT (GST_PAD_PEER (pad)), &peer_group);
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if (peer_group && peer_group != group)
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group_inc_link (group, peer_group);
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}
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}
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}
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static void
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gst_opt_scheduler_pad_unlink (GstScheduler * sched,
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GstPad * srcpad, GstPad * sinkpad)
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@ -2292,6 +2360,8 @@ gst_opt_scheduler_iterate (GstScheduler * sched)
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osched->state = GST_OPT_SCHEDULER_STATE_RUNNING;
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/* gst_opt_scheduler_show (sched); */
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GST_DEBUG_OBJECT (sched, "iterating");
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while (iterations) {
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@ -2309,6 +2379,8 @@ gst_opt_scheduler_iterate (GstScheduler * sched)
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GST_LOG ("scheduling chain %p", chain);
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schedule_chain (chain);
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scheduled = TRUE;
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} else {
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GST_LOG ("not scheduling disabled chain %p", chain);
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}
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/* don't schedule any more chains when in error */
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@ -2370,6 +2442,7 @@ gst_opt_scheduler_show (GstScheduler * sched)
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while (groups) {
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GstOptSchedulerGroup *group = (GstOptSchedulerGroup *) groups->data;
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GSList *elements = group->elements;
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GSList *group_links = group->group_links;
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groups = g_slist_next (groups);
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@ -2388,6 +2461,15 @@ gst_opt_scheduler_show (GstScheduler * sched)
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g_print (" +- element %s\n", GST_ELEMENT_NAME (element));
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}
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while (group_links) {
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GstOptSchedulerGroupLink *link =
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(GstOptSchedulerGroupLink *) group_links->data;
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group_links = g_slist_next (group_links);
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g_print ("group link %p between %p and %p, count %d\n",
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link, link->src, link->sink, link->count);
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}
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}
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}
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}
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