X-Git-Url: https://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=urcu%2Frculfqueue.h;h=01c2092610350155247b87cadd6149aa3b26b4b1;hp=09e5d41ea0db7b7f40032419b070ed55daecdfdd;hb=0e2e9380d93d73c246abdeef52c7a97b01deecca;hpb=23086b720b7edf8b402f22a899568bc6cbcb8235

diff --git a/urcu/rculfqueue.h b/urcu/rculfqueue.h
index 09e5d41..01c2092 100644
--- a/urcu/rculfqueue.h
+++ b/urcu/rculfqueue.h
@@ -1,3 +1,6 @@
+#ifndef _URCU_RCULFQUEUE_H
+#define _URCU_RCULFQUEUE_H
+
 /*
  * rculfqueue.h
  *
@@ -23,6 +26,10 @@
 #include <urcu/urcu_ref.h>
 #include <assert.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #if (!defined(_GNU_SOURCE) && !defined(_LGPL_SOURCE))
 #error "Dynamic loader LGPL wrappers not implemented yet"
 #endif
@@ -108,8 +115,9 @@ void rcu_lfq_enqueue(struct rcu_lfq_queue *q, struct rcu_lfq_node *node)
  * which calls the release primitive when the reference count drops to zero. A
  * grace period must be waited before performing the actual memory reclamation
  * in the release primitive.
- * The entry lfq node returned by dequeue must not be re-used before the
- * reference count reaches zero.
+ * The entry lfq node returned by dequeue must not be modified/re-used/freed
+ * until the reference count reaches zero and a grace period has elapsed (after
+ * the refcount reached 0).
  */
 struct rcu_lfq_node *
 rcu_lfq_dequeue(struct rcu_lfq_queue *q, void (*release)(struct urcu_ref *))
@@ -137,3 +145,9 @@ rcu_lfq_dequeue(struct rcu_lfq_queue *q, void (*release)(struct urcu_ref *))
 		}
 	}
 }
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _URCU_RCULFQUEUE_H */