fixed spacing

This commit is contained in:
elvis
2022-06-08 12:33:03 +02:00
parent f228ee5462
commit 11879cf252

View File

@ -17,7 +17,7 @@
* @function void *threadpool_thread(void *threadpool)
* @brief funzione eseguita dal thread worker che appartiene al pool
*/
static void *workerpool_thread(void *threadpool) {
static void *workerpool_thread(void *threadpool) {
threadpool_t *pool = (threadpool_t *)threadpool; // cast
taskfun_t task; // generic task
pthread_t self = pthread_self();
@ -34,28 +34,28 @@ static void *workerpool_thread(void *threadpool) {
LOCK_RETURN(&(pool->lock), NULL);
for (;;) {
// in attesa di un messaggio, controllo spurious wakeups.
while((pool->count == 0) && (!pool->exiting)) {
pthread_cond_wait(&(pool->cond), &(pool->lock));
// in attesa di un messaggio, controllo spurious wakeups.
while((pool->count == 0) && (!pool->exiting)) {
pthread_cond_wait(&(pool->cond), &(pool->lock));
}
if (pool->exiting > 1) break; // exit forzato, esco immediatamente
// devo uscire ma ci sono messaggi pendenti
if (pool->exiting == 1 && !pool->count) break;
if (pool->exiting > 1) break; // exit forzato, esco immediatamente
// devo uscire ma ci sono messaggi pendenti
if (pool->exiting == 1 && !pool->count) break;
// nuovo task
task.fun = pool->pending_queue[pool->head].fun;
task.arg = pool->pending_queue[pool->head].arg;
task.fun = pool->pending_queue[pool->head].fun;
task.arg = pool->pending_queue[pool->head].arg;
pool->head++; pool->count--;
pool->head = (pool->head == abs(pool->queue_size)) ? 0 : pool->head;
pool->head++; pool->count--;
pool->head = (pool->head == abs(pool->queue_size)) ? 0 : pool->head;
pool->taskonthefly++;
UNLOCK_RETURN(&(pool->lock), NULL);
UNLOCK_RETURN(&(pool->lock), NULL);
// eseguo la funzione
(*(task.fun))(task.arg);
// eseguo la funzione
(*(task.fun))(task.arg);
LOCK_RETURN(&(pool->lock), NULL);
pool->taskonthefly--;
}
@ -69,22 +69,22 @@ static void *workerpool_thread(void *threadpool) {
static int freePoolResources(threadpool_t *pool) {
if(pool->threads) {
free(pool->threads);
free(pool->pending_queue);
pthread_mutex_destroy(&(pool->lock));
pthread_cond_destroy(&(pool->cond));
free(pool->threads);
free(pool->pending_queue);
pthread_mutex_destroy(&(pool->lock));
pthread_cond_destroy(&(pool->cond));
}
free(pool);
free(pool);
return 0;
}
threadpool_t *createThreadPool(int numthreads, int pending_size) {
if(numthreads <= 0 || pending_size < 0) {
errno = EINVAL;
return NULL;
return NULL;
}
threadpool_t *pool = (threadpool_t *)malloc(sizeof(threadpool_t));
if (pool == NULL) return NULL;
@ -115,20 +115,20 @@ threadpool_t *createThreadPool(int numthreads, int pending_size) {
return NULL;
}
for(int i = 0; i < numthreads; i++) {
if(pthread_create(&(pool->threads[i]), NULL,
workerpool_thread, (void*)pool) != 0) {
if(pthread_create(&(pool->threads[i]), NULL,
workerpool_thread, (void*)pool) != 0) {
/* errore fatale, libero tutto forzando l'uscita dei threads */
destroyThreadPool(pool, 1);
destroyThreadPool(pool, 1);
errno = EFAULT;
return NULL;
}
pool->numthreads++;
return NULL;
}
pool->numthreads++;
}
return pool;
}
int destroyThreadPool(threadpool_t *pool, int force) {
int destroyThreadPool(threadpool_t *pool, int force) {
if(pool == NULL || force < 0) {
errno = EINVAL;
return -1;
@ -171,30 +171,30 @@ int addToThreadPool(threadpool_t *pool, void (*f)(void *), void *arg) {
UNLOCK_RETURN(&(pool->lock),-1);
return 1; // esco con valore "coda piena"
}
if (pool->taskonthefly >= pool->numthreads) {
if (nopending) {
if (nopending) {
// tutti i thread sono occupati e non si gestiscono task pendenti
assert(pool->count == 0);
UNLOCK_RETURN(&(pool->lock),-1);
return 1; // esco con valore "coda piena"
}
}
}
pool->pending_queue[pool->tail].fun = f;
pool->pending_queue[pool->tail].arg = arg;
pool->count++;
pool->count++;
pool->tail++;
if (pool->tail >= queue_size) pool->tail = 0;
int r;
if((r=pthread_cond_signal(&(pool->cond))) != 0) {
UNLOCK_RETURN(&(pool->lock),-1);
errno = r;
return -1;
}
UNLOCK_RETURN(&(pool->lock),-1);
return 0;
}
@ -204,11 +204,11 @@ int addToThreadPool(threadpool_t *pool, void (*f)(void *), void *arg) {
* @function void *thread_proxy(void *argl)
* @brief funzione eseguita dal thread worker che non appartiene al pool
*/
static void *proxy_thread(void *arg) {
static void *proxy_thread(void *arg) {
taskfun_t *task = (taskfun_t*)arg;
// eseguo la funzione
// eseguo la funzione
(*(task->fun))(task->arg);
free(task);
return NULL;
}
@ -220,7 +220,7 @@ int spawnThread(void (*f)(void*), void* arg) {
return -1;
}
taskfun_t *task = malloc(sizeof(taskfun_t)); // la memoria verra' liberata dal proxy
taskfun_t *task = malloc(sizeof(taskfun_t)); // la memoria verra' liberata dal proxy
if (!task) return -1;
task->fun = f;
task->arg = arg;