- cancellation disabled by default
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@@ -96,19 +96,22 @@ status_t get_count(private_job_queue_t *this, int *count)
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status_t get(private_job_queue_t *this, job_t **job)
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{
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int count;
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int oldstate;
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pthread_mutex_lock(&(this->mutex));
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// add mutex unlock handler for cancellation
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pthread_cleanup_push((void(*)(void*))pthread_mutex_unlock, (void*)&(this->mutex));
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// go to wait while no jobs available
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/* go to wait while no jobs available */
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this->list->get_count(this->list,&count);
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while(count == 0)
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{
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/* add mutex unlock handler for cancellation, enable cancellation */
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pthread_cleanup_push((void(*)(void*))pthread_mutex_unlock, (void*)&(this->mutex));
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pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, &oldstate);
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pthread_cond_wait( &(this->condvar), &(this->mutex));
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/* reset cancellation, remove mutex-unlock handler (without executing) */
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pthread_setcancelstate(oldstate, NULL);
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pthread_cleanup_pop(0);
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this->list->get_count(this->list,&count);
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}
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// remove mutex-unlock handler (without executing)
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pthread_cleanup_pop(0);
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this->list->remove_first(this->list,(void **) job);
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pthread_mutex_unlock(&(this->mutex));
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return SUCCESS;
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