}
/*
- * cds_wfcq_init: initialize wait-free queue.
+ * cds_wfcq_init: initialize wait-free queue (with lock). Pair with
+ * cds_wfcq_destroy().
*/
static inline void _cds_wfcq_init(struct cds_wfcq_head *head,
struct cds_wfcq_tail *tail)
}
/*
- * __cds_wfcq_init: initialize wait-free queue.
+ * cds_wfcq_destroy: destroy wait-free queue (with lock). Pair with
+ * cds_wfcq_init().
+ */
+static inline void _cds_wfcq_destroy(struct cds_wfcq_head *head,
+ struct cds_wfcq_tail *tail)
+{
+ int ret = pthread_mutex_destroy(&head->lock);
+ assert(!ret);
+}
+
+/*
+ * __cds_wfcq_init: initialize wait-free queue (without lock). Don't
+ * pair with any destroy function.
*/
static inline void ___cds_wfcq_init(struct __cds_wfcq_head *head,
struct cds_wfcq_tail *tail)
struct __cds_wfcq_head *head = u_head._h;
struct cds_wfcq_node *node;
- if (_cds_wfcq_empty(head, tail))
+ if (_cds_wfcq_empty(__cds_wfcq_head_cast(head), tail))
return NULL;
node = ___cds_wfcq_node_sync_next(&head->node, blocking);
/* Load head->node.next before loading node's content */
if (state)
*state = 0;
- if (_cds_wfcq_empty(head, tail)) {
+ if (_cds_wfcq_empty(__cds_wfcq_head_cast(head), tail)) {
return NULL;
}
* Initial emptiness check to speed up cases where queue is
* empty: only require loads to check if queue is empty.
*/
- if (_cds_wfcq_empty(src_q_head, src_q_tail))
+ if (_cds_wfcq_empty(__cds_wfcq_head_cast(src_q_head), src_q_tail))
return CDS_WFCQ_RET_SRC_EMPTY;
for (;;) {
* Append the spliced content of src_q into dest_q. Does not
* require mutual exclusion on dest_q (wait-free).
*/
- if (___cds_wfcq_append(dest_q_head, dest_q_tail, head, tail))
+ if (___cds_wfcq_append(__cds_wfcq_head_cast(dest_q_head), dest_q_tail,
+ head, tail))
return CDS_WFCQ_RET_DEST_NON_EMPTY;
else
return CDS_WFCQ_RET_DEST_EMPTY;
struct cds_wfcq_node *retval;
_cds_wfcq_dequeue_lock(head, tail);
- retval = ___cds_wfcq_dequeue_with_state_blocking(head, tail, state);
+ retval = ___cds_wfcq_dequeue_with_state_blocking(cds_wfcq_head_cast(head),
+ tail, state);
_cds_wfcq_dequeue_unlock(head, tail);
return retval;
}
enum cds_wfcq_ret ret;
_cds_wfcq_dequeue_lock(src_q_head, src_q_tail);
- ret = ___cds_wfcq_splice_blocking(dest_q_head, dest_q_tail,
- src_q_head, src_q_tail);
+ ret = ___cds_wfcq_splice_blocking(cds_wfcq_head_cast(dest_q_head), dest_q_tail,
+ cds_wfcq_head_cast(src_q_head), src_q_tail);
_cds_wfcq_dequeue_unlock(src_q_head, src_q_tail);
return ret;
}