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node: Use the work queue to cancel old operations

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Keep track of the last state change and cancel the previous one
if it's still busy.
This commit is contained in:
Wim Taymans 2020-09-16 10:36:47 +02:00
parent af1cf3d87a
commit 6e77791c8e
1 changed files with 9 additions and 6 deletions
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15
src/pipewire/impl-node.c
View file

@ -46,6 +46,7 @@ struct impl {
struct pw_impl_node this;
enum pw_node_state pending;
uint32_t pending_id;
struct pw_work_queue *work;
@ -1113,6 +1114,7 @@ struct pw_impl_node *pw_context_create_node(struct pw_context *context,
res = -errno;
goto error_clean;
}
impl->pending_id = SPA_ID_INVALID;
this->data_loop = context->data_loop;
@ -1866,8 +1868,7 @@ static void on_state_complete(void *obj, void *data, int res, uint32_t seq)
enum pw_node_state state = SPA_PTR_TO_INT(data);
char *error = NULL;
if (impl->pending != state)
return;
impl->pending_id = SPA_ID_INVALID;
pw_log_debug(NAME" %p: state complete res:%d seq:%d", node, res, seq);
if (impl->last_error < 0) {
@ -1956,12 +1957,14 @@ int pw_impl_node_set_state(struct pw_impl_node *node, enum pw_node_state state)
if (SPA_RESULT_IS_ASYNC(res)) {
res = spa_node_sync(node->node, res);
}
impl->pending = state;
if (old != state)
pw_work_queue_add(impl->work,
if (old != state) {
impl->pending = state;
if (impl->pending_id != SPA_ID_INVALID)
pw_work_queue_cancel(impl->work, node, impl->pending_id);
impl->pending_id = pw_work_queue_add(impl->work,
node, res, on_state_complete, SPA_INT_TO_PTR(state));
}
return res;
}