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wfstack: document first/next return values
[urcu.git]
/
urcu
/
wfstack.h
diff --git
a/urcu/wfstack.h
b/urcu/wfstack.h
index aa10881506a5ad2609cb62a39b18ee916e1676d2..20d1882c867b979910ad6000b8c3b64a8879a0c7 100644
(file)
--- a/
urcu/wfstack.h
+++ b/
urcu/wfstack.h
@@
-162,6
+162,8
@@
extern struct cds_wfs_head *cds_wfs_pop_all_blocking(struct cds_wfs_stack *s);
* Used by for-like iteration macros in urcu/wfstack.h:
* cds_wfs_for_each_blocking()
* cds_wfs_for_each_blocking_safe()
* Used by for-like iteration macros in urcu/wfstack.h:
* cds_wfs_for_each_blocking()
* cds_wfs_for_each_blocking_safe()
+ *
+ * Returns NULL if popped stack is empty, top stack node otherwise.
*/
extern struct cds_wfs_node *cds_wfs_first_blocking(struct cds_wfs_head *head);
*/
extern struct cds_wfs_node *cds_wfs_first_blocking(struct cds_wfs_head *head);
@@
-174,6
+176,9
@@
extern struct cds_wfs_node *cds_wfs_first_blocking(struct cds_wfs_head *head);
* Used by for-like iteration macros in urcu/wfstack.h:
* cds_wfs_for_each_blocking()
* cds_wfs_for_each_blocking_safe()
* Used by for-like iteration macros in urcu/wfstack.h:
* cds_wfs_for_each_blocking()
* cds_wfs_for_each_blocking_safe()
+ *
+ * Returns NULL if reached end of popped stack, non-NULL next stack
+ * node otherwise.
*/
extern struct cds_wfs_node *cds_wfs_next_blocking(struct cds_wfs_node *node);
*/
extern struct cds_wfs_node *cds_wfs_next_blocking(struct cds_wfs_node *node);
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