X-Git-Url: https://git.liburcu.org/?a=blobdiff_plain;f=urcu-qsbr.c;h=a239be036d416f68259c0f586f5d0ce7248385e9;hb=408f6d9220576478e5ce9a20256d579fc9bfa954;hp=5eda71dbf3c1ee454f9b29e19c752ff946f7c9b3;hpb=af7c2dbeac32c663b64ad05e4eca70e18784463b;p=urcu.git

diff --git a/urcu-qsbr.c b/urcu-qsbr.c
index 5eda71d..a239be0 100644
--- a/urcu-qsbr.c
+++ b/urcu-qsbr.c
@@ -29,6 +29,7 @@
 #include <signal.h>
 #include <assert.h>
 #include <stdlib.h>
+#include <stdint.h>
 #include <string.h>
 #include <errno.h>
 #include <poll.h>
@@ -44,13 +45,18 @@ 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.
  */
 unsigned long rcu_gp_ctr = RCU_GP_ONLINE;
 
+/*
+ * Active attempts to check for reader Q.S. before calling futex().
+ */
+#define RCU_QS_ACTIVE_ATTEMPTS 100
+
 /*
  * Written to only by each individual reader. Read by both the reader and the
  * writers.