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graph: new scheduling model

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Make explicit links between elements that are used to activate the
next element in the graph.
Make subgraphs a special regular node. Make a link from the
subgraph children to the parent so that the subgraph completes when
all the children completed.
Implement a single process function in plugins
Remove many messages in the client node
This commit is contained in:
Wim Taymans 2018-03-20 11:37:11 +01:00
parent 9b0a880afb
commit 33a322b96e
36 changed files with 401 additions and 750 deletions
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15
spa/plugins/support/loop.c
View file

@ -269,15 +269,20 @@ static void wakeup_func(void *data, uint64_t count)
struct impl *impl = data;
uint32_t index;
while (spa_ringbuffer_get_read_index(&impl->buffer, &index) > 0) {
struct invoke_item *item =
SPA_MEMBER(impl->buffer_data, index & (DATAS_SIZE - 1), struct invoke_item);
struct invoke_item *item;
bool block;
item = SPA_MEMBER(impl->buffer_data, index & (DATAS_SIZE - 1), struct invoke_item);
block = item->block;
item->res = item->func(&impl->loop, true, item->seq, item->data, item->size,
item->user_data);
spa_ringbuffer_read_update(&impl->buffer, index + item->item_size);
if (item->block) {
uint64_t count = 1;
if (write(impl->ack_fd, &count, sizeof(uint64_t)) != sizeof(uint64_t))
if (block) {
uint64_t c = 1;
if (write(impl->ack_fd, &c, sizeof(uint64_t)) != sizeof(uint64_t))
spa_log_warn(impl->log, NAME " %p: failed to write event fd: %s",
impl, strerror(errno));
}