bool job_queue_node_kill( job_queue_node_type * node , job_queue_status_type * status , queue_driver_type * driver) {
bool result = false;
pthread_mutex_lock( &node->data_mutex );
{
job_status_type current_status = job_queue_node_get_status( node );
if (current_status & JOB_QUEUE_CAN_KILL) {
/*
Jobs with status JOB_QUEUE_WAITING are killable - in the
sense that status should be set to JOB_QUEUE_USER_KILLED; but
they do not have any driver specific job_data, and the
driver->kill_job() function can NOT be called.
*/
if (current_status != JOB_QUEUE_WAITING) {
queue_driver_kill_job( driver , node->job_data );
if (node->job_data) {
queue_driver_free_job( driver , node->job_data );
node->job_data = NULL;
}
}
job_queue_status_transition(status, current_status, JOB_QUEUE_USER_KILLED);
job_queue_node_set_status( node , JOB_QUEUE_USER_KILLED);
result = true;
}
}
pthread_mutex_unlock( &node->data_mutex );
return result;
}
bool job_queue_node_kill( job_queue_node_type * node , job_queue_status_type * status , queue_driver_type * driver) {
bool result = false;
pthread_mutex_lock( &node->data_mutex );
{
job_status_type current_status = job_queue_node_get_status( node );
if (current_status & JOB_QUEUE_CAN_KILL) {
/*
If the job is killed before it is even started no driver
specific job data has been assigned; we therefor must check
the node->job_data pointer before entering.
*/
if (node->job_data) {
queue_driver_kill_job( driver , node->job_data );
queue_driver_free_job( driver , node->job_data );
node->job_data = NULL;
}
job_queue_status_transition(status, current_status, JOB_QUEUE_USER_KILLED);
job_queue_node_set_status( node , JOB_QUEUE_USER_KILLED);
result = true;
}
}
pthread_mutex_unlock( &node->data_mutex );
return result;
}