X-Git-Url: http://git.liburcu.org/?p=userspace-rcu.git;a=blobdiff_plain;f=urcu.c;h=ba013d990b6f052da8e85f69af7192de72a4b799;hp=ccaf3e95a2d5ad6f7428625b399429cd843344b6;hb=refs%2Fheads%2Fstable-0.6;hpb=af7c2dbeac32c663b64ad05e4eca70e18784463b

diff --git a/urcu.c b/urcu.c
index ccaf3e9..ba013d9 100644
--- a/urcu.c
+++ b/urcu.c
@@ -25,20 +25,38 @@
 
 #define _BSD_SOURCE
 #define _GNU_SOURCE
+#define _LGPL_SOURCE
 #include <stdio.h>
 #include <pthread.h>
 #include <signal.h>
 #include <assert.h>
 #include <stdlib.h>
+#include <stdint.h>
 #include <string.h>
 #include <errno.h>
 #include <poll.h>
 
+#include "urcu/wfqueue.h"
 #include "urcu/map/urcu.h"
-
 #include "urcu/static/urcu.h"
+#include "urcu-pointer.h"
+
 /* Do not #define _LGPL_SOURCE to ensure we can emit the wrapper symbols */
+#undef _LGPL_SOURCE
 #include "urcu.h"
+#define _LGPL_SOURCE
+
+/*
+ * If a reader is really non-cooperative and refuses to commit its
+ * rcu_active_readers count to memory (there is no barrier in the reader
+ * per-se), kick it after a few loops waiting for it.
+ */
+#define KICK_READER_LOOPS 10000
+
+/*
+ * Active attempts to check for reader Q.S. before calling futex().
+ */
+#define RCU_QS_ACTIVE_ATTEMPTS 100
 
 #ifdef RCU_MEMBARRIER
 static int init_done;
@@ -62,7 +80,7 @@ void __attribute__((destructor)) rcu_exit(void);
 
 static pthread_mutex_t rcu_gp_lock = PTHREAD_MUTEX_INITIALIZER;
 
-int gp_futex;
+int32_t gp_futex;
 
 /*
  * Global grace period counter.
@@ -126,7 +144,7 @@ static void mutex_unlock(pthread_mutex_t *mutex)
 #ifdef RCU_MEMBARRIER
 static void smp_mb_master(int group)
 {
-	if (likely(has_sys_membarrier))
+	if (caa_likely(has_sys_membarrier))
 		membarrier(MEMBARRIER_EXPEDITED);
 	else
 		cmm_smp_mb();