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If sem_open() fails, try again with sem_init().

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default 2023-05-25 17:20:21 +02:00
parent 18c842d8a6
commit efec8a6eae
1 changed files with 13 additions and 0 deletions
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13
httpd.c
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@ -483,6 +483,7 @@ void httpd(void)
int n;
time_t start_time = time(NULL);
char sem_name[24];
sem_t anon_job_sem;
address = xs_dict_get(srv_config, "address");
port = xs_number_get(xs_dict_get(srv_config, "port"));
@ -510,6 +511,18 @@ void httpd(void)
pthread_mutex_init(&job_mutex, NULL);
sprintf(sem_name, "/job_%d", getpid());
job_sem = sem_open(sem_name, O_CREAT, 0644, 0);
if (job_sem == NULL) {
/* error opening a named semaphore; try with an anonymous one */
if (sem_init(&anon_job_sem, 0, 0) != -1)
job_sem = &anon_job_sem;
}
if (job_sem == NULL) {
srv_log(xs_fmt("fatal error: cannot create semaphore -- cannot continue"));
return;
}
job_fifo = xs_list_new();
/* initialize sleep control */