Druk-3D/klipper
1
0
Fork 0
mirror of https://github.com/Klipper3d/klipper.git synced 2025-12-15 20:59:56 +01:00
Code Issues Packages Projects Releases Wiki Activity

serialqueue: Rework check_wake_receive() to receive_append_wake()

Browse Source 
Rename the function and perform list appending and locking in that
function.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2025-11-04 11:45:54 -05:00
parent 459e77c4f9
commit 35dffc1516
1 changed files with 15 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
klippy/chelper/serialqueue.c
View File

@@ -143,14 +143,20 @@ debug_queue_add(struct list_head *root, struct queue_message *qm)
message_free(old);
}
// Wake up the receiver thread if it is waiting
// Add messages and wake up the receiver thread if it is waiting
static void
check_wake_receive(struct receiver *receiver)
receive_append_wake(struct receiver *receiver, struct list_head *msgs)
{
int dokick = 0;
pthread_mutex_lock(&receiver->lock);
list_join_tail(msgs, &receiver->queue);
if (receiver->waiting) {
receiver->waiting = 0;
pthread_cond_signal(&receiver->cond);
dokick = 1;
}
pthread_mutex_unlock(&receiver->lock);
if (dokick)
pthread_cond_signal(&receiver->cond);
}
// Write to the internal pipe to wake the background thread if in poll
@@ -297,12 +303,8 @@ handle_message(struct serialqueue *sq, double eventtime, int len)
list_add_tail(&qm->node, &received);
}
if (!list_empty(&received)) {
pthread_mutex_lock(&sq->receiver.lock);
list_join_tail(&received, &sq->receiver.queue);
check_wake_receive(&sq->receiver);
pthread_mutex_unlock(&sq->receiver.lock);
}
if (!list_empty(&received))
receive_append_wake(&sq->receiver, &received);
// Check fast readers
struct fastreader *fr;
@@ -693,9 +695,10 @@ background_thread(void *data)
set_thread_name(sq->name);
pollreactor_run(sq->pr);
pthread_mutex_lock(&sq->receiver.lock);
check_wake_receive(&sq->receiver);
pthread_mutex_unlock(&sq->receiver.lock);
// Wake any waiting receivers
struct list_head dummy;
list_init(&dummy);
receive_append_wake(&sq->receiver, &dummy);
return NULL;
}