hppa: allocate membarrier system call number

[urcu.git] / urcu-qsbr.h

diff --git a/urcu-qsbr.h b/urcu-qsbr.h
index a2f6575986bf7976811ae6db3150f81f457609c4..bf173618bf9a0dee1da8441ff2c14ada233fa064 100644 (file)
--- a/urcu-qsbr.h
+++ b/urcu-qsbr.h
@@ -39,10 +39,14 @@
 
 #ifdef __cplusplus
 extern "C" {
-#endif 
+#endif
 
 #include <urcu/map/urcu-qsbr.h>
 
+#ifdef RCU_DEBUG       /* For backward compatibility */
+#define DEBUG_RCU
+#endif
+
 /*
  * Important !
  *
@@ -70,6 +74,7 @@ extern "C" {
  */
 #define rcu_read_lock_qsbr             _rcu_read_lock
 #define rcu_read_unlock_qsbr           _rcu_read_unlock
+#define rcu_read_ongoing_qsbr          _rcu_read_ongoing
 
 #define rcu_quiescent_state_qsbr       _rcu_quiescent_state
 #define rcu_thread_offline_qsbr                _rcu_thread_offline
@@ -85,12 +90,12 @@ extern "C" {
  * QSBR read lock/unlock are guaranteed to be no-ops. Therefore, we expose them
  * in the LGPL header for any code to use. However, the debug version is not
  * nops and may contain sanity checks. To activate it, applications must be
- * recompiled with -DRCU_DEBUG (even non-LGPL/GPL applications). This is the
+ * recompiled with -DDEBUG_RCU (even non-LGPL/GPL applications). This is the
  * best trade-off between license/performance/code triviality and
  * library debugging & tracing features we could come up with.
  */
 
-#if (!defined(BUILD_QSBR_LIB) && defined(RCU_DEBUG))
+#if (!defined(BUILD_QSBR_LIB) && !defined(DEBUG_RCU))
 
 static inline void rcu_read_lock(void)
 {
@@ -100,13 +105,14 @@ static inline void rcu_read_unlock(void)
 {
 }
 
-#else /* !RCU_DEBUG */
+#else /* !DEBUG_RCU */
 
 extern void rcu_read_lock(void);
 extern void rcu_read_unlock(void);
 
-#endif /* !RCU_DEBUG */
+#endif /* !DEBUG_RCU */
 
+extern int rcu_read_ongoing(void);
 extern void rcu_quiescent_state(void);
 extern void rcu_thread_offline(void);
 extern void rcu_thread_online(void);
@@ -121,7 +127,7 @@ extern void synchronize_rcu(void);
 extern void rcu_register_thread(void);
 extern void rcu_unregister_thread(void);
 
-#ifdef __cplusplus 
+#ifdef __cplusplus
 }
 #endif