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- allow removal of waiting workers using mutex_unlock-handler

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This commit is contained in:
Martin Willi
2005-11-04 08:07:10 +00:00
parent 66dae4501e
commit 16b4690854
1 changed files with 16 additions and 15 deletions
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Source/charon/job_queue.c
+16 -15
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@@ -82,9 +82,8 @@ struct private_job_queue_s {
/**
* @brief implements function get_count of job_queue_t
*/
status_t get_count(job_queue_t *job_queue, int *count)
status_t get_count(private_job_queue_t *this, int *count)
{
private_job_queue_t *this = (private_job_queue_t *) job_queue;
pthread_mutex_lock(&(this->mutex));
*count = this->list->count;
pthread_mutex_unlock(&(this->mutex));
@@ -94,14 +93,19 @@ status_t get_count(job_queue_t *job_queue, int *count)
/**
* @brief implements function get of job_queue_t
*/
status_t get(job_queue_t *job_queue, job_t **job)
status_t get(private_job_queue_t *this, job_t **job)
{
private_job_queue_t *this = (private_job_queue_t *) job_queue;
pthread_mutex_lock(&(this->mutex));
// add mutex unlock handler for cancellation
pthread_cleanup_push((void(*)(void*))pthread_mutex_unlock, (void*)&(this->mutex));
// go to wait while no jobs available
while(this->list->count == 0)
{
pthread_cond_wait( &(this->condvar), &(this->mutex));
}
// remove mutex-unlock handler
pthread_cleanup_pop(1);
this->list->remove_first(this->list,(void **) job);
pthread_mutex_unlock(&(this->mutex));
return SUCCESS;
@@ -110,9 +114,8 @@ status_t get(job_queue_t *job_queue, job_t **job)
/**
* @brief implements function add of job_queue_t
*/
status_t add(job_queue_t *job_queue, job_t *job)
status_t add(private_job_queue_t *this, job_t *job)
{
private_job_queue_t *this = (private_job_queue_t *) job_queue;
pthread_mutex_lock(&(this->mutex));
this->list->insert_last(this->list,job);
pthread_cond_signal( &(this->condvar));
@@ -124,11 +127,9 @@ status_t add(job_queue_t *job_queue, job_t *job)
* @brief implements function destroy of job_queue_t
*
*/
status_t job_queue_destroy (job_queue_t *job_queue)
{
private_job_queue_t *this = (private_job_queue_t *) job_queue;
while (this->list->count > 0)
status_t job_queue_destroy (private_job_queue_t *this)
{
while (this->list->count > 0)
{
job_t *job;
if (this->list->remove_first(this->list,(void *) &job) != SUCCESS)
@@ -167,10 +168,10 @@ job_queue_t *job_queue_create()
return NULL;
}
this->public.get_count = get_count;
this->public.get = get;
this->public.add = add;
this->public.destroy = job_queue_destroy;
this->public.get_count = (status_t(*)(job_queue_t*, int*))get_count;
this->public.get = (status_t(*)(job_queue_t*, job_t**))get;
this->public.add = (status_t(*)(job_queue_t*, job_t*))add;
this->public.destroy = (status_t(*)(job_queue_t*))job_queue_destroy;
this->list = linked_list;
pthread_mutex_init(&(this->mutex), NULL);