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wfstack: document first/next return values
[urcu.git]
/
urcu
/
static
/
wfstack.h
diff --git
a/urcu/static/wfstack.h
b/urcu/static/wfstack.h
index 24f6cb478447e76ec0be88b6a86beb28b129e83c..1a0e4d7475bab6beca8ecf3dba2b242b88ae6634 100644
(file)
--- a/
urcu/static/wfstack.h
+++ b/
urcu/static/wfstack.h
@@
-291,6
+291,8
@@
_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.
*/
static inline struct cds_wfs_node *
_cds_wfs_first_blocking(struct cds_wfs_head *head)
*/
static inline struct cds_wfs_node *
_cds_wfs_first_blocking(struct cds_wfs_head *head)
@@
-309,6
+311,9
@@
_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.
*/
static inline struct cds_wfs_node *
_cds_wfs_next_blocking(struct cds_wfs_node *node)
*/
static inline struct cds_wfs_node *
_cds_wfs_next_blocking(struct cds_wfs_node *node)
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