/**
* @file job_queue.c
*
- * @brief Job-Queue based on linked_list_t
+ * @brief Implementation of job_queue_t
*
*/
*
*/
struct private_job_queue_t {
+
+ /**
+ * public members
+ */
job_queue_t public;
/**
* The jobs are stored in a linked list
*/
linked_list_t *list;
+
/**
* access to linked_list is locked through this mutex
*/
/**
- * @brief implements function get_count of job_queue_t
+ * implements job_queue_t.get_count
*/
static int get_count(private_job_queue_t *this)
{
}
/**
- * @brief implements function get of job_queue_t
+ * implements job_queue_t.get
*/
-static status_t get(private_job_queue_t *this, job_t **job)
+static job_t *get(private_job_queue_t *this)
{
int oldstate;
+ job_t *job;
pthread_mutex_lock(&(this->mutex));
/* go to wait while no jobs available */
while(this->list->get_count(this->list) == 0)
pthread_setcancelstate(oldstate, NULL);
pthread_cleanup_pop(0);
}
- this->list->remove_first(this->list,(void **) job);
+ this->list->remove_first(this->list,(void **) &job);
pthread_mutex_unlock(&(this->mutex));
- return SUCCESS;
+ return job;
}
/**
- * @brief implements function add of job_queue_t
+ * implements function job_queue_t.add
*/
-static status_t add(private_job_queue_t *this, job_t *job)
+static void add(private_job_queue_t *this, job_t *job)
{
pthread_mutex_lock(&(this->mutex));
this->list->insert_last(this->list,job);
pthread_cond_signal( &(this->condvar));
pthread_mutex_unlock(&(this->mutex));
- return SUCCESS;
}
/**
- * @brief implements function destroy of job_queue_t
- *
+ * implements job_queue_t.destroy
*/
-static status_t job_queue_destroy (private_job_queue_t *this)
+static void job_queue_destroy (private_job_queue_t *this)
{
while (this->list->get_count(this->list) > 0)
{
pthread_cond_destroy(&(this->condvar));
allocator_free(this);
- return SUCCESS;
}
/*
*/
job_queue_t *job_queue_create()
{
- linked_list_t *linked_list = linked_list_create();
- if (linked_list == NULL)
- {
- return NULL;
- }
-
private_job_queue_t *this = allocator_alloc_thing(private_job_queue_t);
- if (this == NULL)
- {
- linked_list->destroy(linked_list);
- return NULL;
- }
this->public.get_count = (int(*)(job_queue_t*))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->public.get = (job_t*(*)(job_queue_t*))get;
+ this->public.add = (void(*)(job_queue_t*, job_t*))add;
+ this->public.destroy = (void(*)(job_queue_t*))job_queue_destroy;
- this->list = linked_list;
+ this->list = linked_list_create();
pthread_mutex_init(&(this->mutex), NULL);
pthread_cond_init(&(this->condvar), NULL);