diff options
Diffstat (limited to 'src/irmd/api_table.c')
-rw-r--r-- | src/irmd/api_table.c | 91 |
1 files changed, 50 insertions, 41 deletions
diff --git a/src/irmd/api_table.c b/src/irmd/api_table.c index df56dd02..a244f3a2 100644 --- a/src/irmd/api_table.c +++ b/src/irmd/api_table.c @@ -36,8 +36,6 @@ #include <limits.h> #include <assert.h> -#define ENTRY_SLEEP_TIMEOUT 10 /* ms */ - struct api_entry * api_entry_create(pid_t api, char * apn) { @@ -70,14 +68,14 @@ struct api_entry * api_entry_create(pid_t api, pthread_condattr_setclock(&cattr, PTHREAD_COND_CLOCK); #endif - if (pthread_mutex_init(&e->state_lock, NULL)) { + if (pthread_mutex_init(&e->lock, NULL)) { free(e); return NULL; } - if (pthread_cond_init(&e->state_cond, &cattr)) { - pthread_mutex_destroy(&e->state_lock); + if (pthread_cond_init(&e->cond, &cattr)) { + pthread_mutex_destroy(&e->lock); free(e); return NULL; } @@ -85,6 +83,15 @@ struct api_entry * api_entry_create(pid_t api, return e; } +void cancel_api_entry(void * o) +{ + struct api_entry * e = (struct api_entry *) o; + + e->state = API_NULL; + + pthread_mutex_unlock(&e->lock); +} + void api_entry_destroy(struct api_entry * e) { struct list_head * p; @@ -92,25 +99,29 @@ void api_entry_destroy(struct api_entry * e) assert(e); - pthread_mutex_lock(&e->state_lock); + pthread_mutex_lock(&e->lock); if (e->state == API_DESTROY) { - pthread_mutex_unlock(&e->state_lock); + pthread_mutex_unlock(&e->lock); return; } if (e->state == API_SLEEP) e->state = API_DESTROY; - pthread_cond_signal(&e->state_cond); + pthread_cond_signal(&e->cond); + + pthread_cleanup_push(cancel_api_entry, e); while (e->state != API_INIT) - pthread_cond_wait(&e->state_cond, &e->state_lock); + pthread_cond_wait(&e->cond, &e->lock); + + pthread_cleanup_pop(false); - pthread_mutex_unlock(&e->state_lock); + pthread_mutex_unlock(&e->lock); - pthread_cond_destroy(&e->state_cond); - pthread_mutex_destroy(&e->state_lock); + pthread_cond_destroy(&e->cond); + pthread_mutex_destroy(&e->lock); if (e->apn != NULL) free(e->apn); @@ -164,39 +175,34 @@ void api_entry_del_name(struct api_entry * e, } } -void api_entry_cancel(struct api_entry * e) +int api_entry_sleep(struct api_entry * e, + struct timespec * timeo) { - pthread_mutex_lock(&e->state_lock); - - e->state = API_INIT; - pthread_cond_broadcast(&e->state_cond); - - pthread_mutex_unlock(&e->state_lock); -} - -int api_entry_sleep(struct api_entry * e) -{ - struct timespec timeout = {(ENTRY_SLEEP_TIMEOUT / 1000), - (ENTRY_SLEEP_TIMEOUT % 1000) * MILLION}; - struct timespec now; struct timespec dl; int ret = 0; assert(e); - clock_gettime(PTHREAD_COND_CLOCK, &now); - ts_add(&now, &timeout, &dl); + if (timeo != NULL) { + clock_gettime(PTHREAD_COND_CLOCK, &dl); + ts_add(&dl, timeo, &dl); + } - pthread_mutex_lock(&e->state_lock); + pthread_mutex_lock(&e->lock); if (e->state != API_WAKE && e->state != API_DESTROY) e->state = API_SLEEP; + pthread_cleanup_push(cancel_api_entry, e); + while (e->state == API_SLEEP && ret != -ETIMEDOUT) - ret = -pthread_cond_timedwait(&e->state_cond, - &e->state_lock, - &dl); + if (timeo) + ret = -pthread_cond_timedwait(&e->cond, &e->lock, &dl); + else + ret = -pthread_cond_wait(&e->cond, &e->lock); + + pthread_cleanup_pop(false); if (e->state == API_DESTROY) { if (e->re != NULL) @@ -204,11 +210,10 @@ int api_entry_sleep(struct api_entry * e) ret = -1; } - if (ret != -ETIMEDOUT) - e->state = API_INIT; + e->state = API_INIT; - pthread_cond_broadcast(&e->state_cond); - pthread_mutex_unlock(&e->state_lock); + pthread_cond_broadcast(&e->cond); + pthread_mutex_unlock(&e->lock); return ret; } @@ -219,25 +224,29 @@ void api_entry_wake(struct api_entry * e, assert(e); assert(re); - pthread_mutex_lock(&e->state_lock); + pthread_mutex_lock(&e->lock); if (e->state != API_SLEEP) { - pthread_mutex_unlock(&e->state_lock); + pthread_mutex_unlock(&e->lock); return; } e->state = API_WAKE; e->re = re; - pthread_cond_broadcast(&e->state_cond); + pthread_cond_broadcast(&e->cond); + + pthread_cleanup_push(cancel_api_entry, e); while (e->state == API_WAKE) - pthread_cond_wait(&e->state_cond, &e->state_lock); + pthread_cond_wait(&e->cond, &e->lock); + + pthread_cleanup_pop(false); if (e->state == API_DESTROY) e->state = API_INIT; - pthread_mutex_unlock(&e->state_lock); + pthread_mutex_unlock(&e->lock); } int api_table_add(struct list_head * api_table, |