X-Git-Url: http://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=urcu.c;h=32f74880492ce40527c8b5b40560249eac485b90;hp=39f5619773ba383b402fb1c536672af990129ed3;hb=4d78cb54f60eac305d4b7e9e1ff90bb968634756;hpb=0a1d290b4432036a7c1bf4a1b251ec9086036a87

diff --git a/urcu.c b/urcu.c
index 39f5619..32f7488 100644
--- a/urcu.c
+++ b/urcu.c
@@ -37,6 +37,8 @@
 #include "urcu.h"
 
 #ifndef URCU_MB
+static int init_done;
+
 void __attribute__((constructor)) urcu_init(void);
 void __attribute__((destructor)) urcu_exit(void);
 #else
@@ -45,14 +47,12 @@ void urcu_init(void)
 }
 #endif
 
-int init_done;
-
-pthread_mutex_t urcu_mutex = PTHREAD_MUTEX_INITIALIZER;
+static pthread_mutex_t urcu_mutex = PTHREAD_MUTEX_INITIALIZER;
 
 /*
  * Global grace period counter.
  * Contains the current RCU_GP_CTR_BIT.
- * Also has a RCU_GP_CTR_BIT of 1, to accelerate the reader fast path.
+ * Also has a RCU_GP_COUNT of 1, to accelerate the reader fast path.
  * Written to only by writer with mutex taken. Read by both writer and readers.
  */
 long urcu_gp_ctr = RCU_GP_COUNT;
@@ -81,7 +81,7 @@ static struct reader_registry *registry;
 static char __thread need_mb;
 static int num_readers, alloc_readers;
 
-void internal_urcu_lock(void)
+static void internal_urcu_lock(void)
 {
 	int ret;
 
@@ -108,7 +108,7 @@ void internal_urcu_lock(void)
 #endif /* #else #ifndef DISTRUST_SIGNALS_EXTREME */
 }
 
-void internal_urcu_unlock(void)
+static void internal_urcu_unlock(void)
 {
 	int ret;
 
@@ -347,6 +347,12 @@ void *rcu_xchg_pointer_sym(void **p, void *v)
 	return xchg(p, v);
 }
 
+void *rcu_cmpxchg_pointer_sym(void **p, void *old, void *_new)
+{
+	wmb();
+	return cmpxchg(p, old, _new);
+}
+
 void *rcu_publish_content_sym(void **p, void *v)
 {
 	void *oldptr;