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serialqueue: Kick the background thread from serialqueue_exit 

Wake the background thread up when exiting - as this makes the exit
complete faster (and have more predictable timing).

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2016-11-29 16:14:20 -05:00
parent 4d6830a373
commit 72c4f353e6
1 changed files with 10 additions and 9 deletions
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19
klippy/serialqueue.c
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@ -448,6 +448,15 @@ check_wake_receive(struct serialqueue *sq)
} }
} }
// Write to the internal pipe to wake the background thread if in poll
static void
kick_bg_thread(struct serialqueue *sq)
{
int ret = write(sq->pipe_fds[1], ".", 1);
if (ret < 0)
report_errno("pipe write", ret);
}
// Update internal state when the receive sequence increases // Update internal state when the receive sequence increases
static void static void
update_receive_seq(struct serialqueue *sq, double eventtime, uint64_t rseq) update_receive_seq(struct serialqueue *sq, double eventtime, uint64_t rseq)
@ -832,6 +841,7 @@ void
serialqueue_exit(struct serialqueue *sq) serialqueue_exit(struct serialqueue *sq)
{ {
pollreactor_do_exit(&sq->pr); pollreactor_do_exit(&sq->pr);
kick_bg_thread(sq);
int ret = pthread_join(sq->tid, NULL); int ret = pthread_join(sq->tid, NULL);
if (ret) if (ret)
report_errno("pthread_join", ret); report_errno("pthread_join", ret);
@ -848,15 +858,6 @@ serialqueue_alloc_commandqueue(void)
return cq; return cq;
} }
// Write to the internal pipe to wake the background thread if in poll
static void
kick_bg_thread(struct serialqueue *sq)
{
int ret = write(sq->pipe_fds[1], ".", 1);
if (ret < 0)
report_errno("pipe write", ret);
}
// Add a batch of messages to the given command_queue // Add a batch of messages to the given command_queue
void void
serialqueue_send_batch(struct serialqueue *sq, struct command_queue *cq serialqueue_send_batch(struct serialqueue *sq, struct command_queue *cq