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Merge pull request 'Use named semaphores' (#32) from saagarjha/snac2:master into master

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Reviewed-on: https://codeberg.org/grunfink/snac2/pulls/32

This fixes httpd on macOS. It's fine if you don't want to merge this into snac itself; I can ask MacPorts to carry the patch themselves.
This commit is contained in:
grunfink 2023-05-07 15:55:16 +00:00
commit 3093bd2315
1 changed files with 9 additions and 5 deletions
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14
httpd.c
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@ -299,7 +299,7 @@ void term_handler(int s)
static pthread_mutex_t job_mutex;
/* semaphre to trigger job processing */
static sem_t job_sem;
static sem_t *job_sem;
/* fifo of jobs */
xs_list *job_fifo = NULL;
@ -332,7 +332,7 @@ void job_post(const xs_val *job, int urgent)
}
/* ask for someone to attend it */
sem_post(&job_sem);
sem_post(job_sem);
}
@ -341,7 +341,7 @@ void job_wait(xs_val **job)
{
*job = NULL;
if (sem_wait(&job_sem) == 0) {
if (sem_wait(job_sem) == 0) {
/* lock the mutex */
pthread_mutex_lock(&job_mutex);
@ -352,6 +352,10 @@ void job_wait(xs_val **job)
/* unlock the mutex */
pthread_mutex_unlock(&job_mutex);
}
if (!*job) {
sem_close(job_sem);
}
}
@ -362,7 +366,7 @@ void job_wait(xs_val **job)
static void *job_thread(void *arg)
/* job thread */
{
int pid = (char *) arg - (char *) 0x0;
int pid = (int)(uintptr_t)arg;
srv_debug(1, xs_fmt("job thread %d started", pid));
@ -503,7 +507,7 @@ void httpd(void)
/* initialize the job control engine */
pthread_mutex_init(&job_mutex, NULL);
sem_init(&job_sem, 0, 0);
job_sem = sem_open("/job", O_CREAT, 0644, 0);
job_fifo = xs_list_new();
/* initialize sleep control */