/**
* allocate a work node.
*
* @param[out] node_out address in which to store new work node
*
* @return operation status
* @retval 0 success
* @retval ENOMEM out of memory
*/
int
afs_wq_node_alloc(struct afs_work_queue_node ** node_out)
{
int ret = 0;
struct afs_work_queue_node * node;
*node_out = node = (struct afs_work_queue_node *) malloc(sizeof(*node));
if (node == NULL) {
ret = ENOMEM;
goto error;
}
queue_NodeInit(&node->node_list);
node->qidx = AFS_WQ_NODE_LIST_NONE;
node->cbf = NULL;
node->rock = node->queue = NULL;
node->refcount = 1;
node->block_count = 0;
node->error_count = 0;
MUTEX_INIT(&node->lock, "node", MUTEX_DEFAULT, 0);
CV_INIT(&node->state_cv, "node state", CV_DEFAULT, 0);
node->state = AFS_WQ_NODE_STATE_INIT;
queue_Init(&node->dep_children);
error:
return ret;
}
/**
* allocate a thread worker object.
*
* @param[inout] worker_out address in which to store worker object pointer
*
* @return operation status
* @retval 0 success
* @retval ENOMEM out of memory
*
* @internal
*/
static int
_afs_tp_worker_alloc(struct afs_thread_pool_worker ** worker_out)
{
int ret = 0;
struct afs_thread_pool_worker * worker;
*worker_out = worker = malloc(sizeof(*worker));
if (worker == NULL) {
ret = ENOMEM;
goto error;
}
queue_NodeInit(&worker->worker_list);
error:
return ret;
}
/**
* allocate a dependency node.
*
* @param[out] node_out address in which to store dep node pointer
*
* @return operation status
* @retval 0 success
* @retval ENOMEM out of memory
*
* @internal
*/
static int
_afs_wq_dep_alloc(struct afs_work_queue_dep_node ** node_out)
{
int ret = 0;
struct afs_work_queue_dep_node * node;
node = malloc(sizeof(*node));
if (node == NULL) {
ret = ENOMEM;
goto error;
}
queue_NodeInit(&node->parent_list);
node->parent = node->child = NULL;
*node_out = node;
error:
return ret;
}
