qsbr: use defines to clarify code.

[urcu.git] / urcu-qsbr.c

diff --git a/urcu-qsbr.c b/urcu-qsbr.c
index 1955277ac65d309e8b187f82b2eec242a7d211f2..5f9e46dc28f6f88d11004c95acda61bd24643543 100644 (file)
--- a/urcu-qsbr.c
+++ b/urcu-qsbr.c
@@ -42,20 +42,20 @@ pthread_mutex_t urcu_mutex = PTHREAD_MUTEX_INITIALIZER;
 /*
  * Global grace period counter.
  */
-long urcu_gp_ctr = 1;
+unsigned long urcu_gp_ctr = RCU_GP_ONLINE;
 
 /*
  * Written to only by each individual reader. Read by both the reader and the
  * writers.
  */
-long __thread rcu_reader_qs_gp;
+unsigned long __thread rcu_reader_qs_gp;
 
 /* Thread IDs of registered readers */
 #define INIT_NUM_THREADS 4
 
 struct reader_registry {
        pthread_t tid;
-       long *rcu_reader_qs_gp;
+       unsigned long *rcu_reader_qs_gp;
 };
 
 #ifdef DEBUG_YIELD
@@ -139,7 +139,7 @@ static void wait_for_quiescent_state(void)
 
 void synchronize_rcu(void)
 {
-       long was_online;
+       unsigned long was_online;
 
        was_online = rcu_reader_qs_gp;
 
@@ -153,7 +153,7 @@ void synchronize_rcu(void)
                STORE_SHARED(rcu_reader_qs_gp, 0);
 
        internal_urcu_lock();
-       STORE_SHARED(urcu_gp_ctr, urcu_gp_ctr + 2);
+       STORE_SHARED(urcu_gp_ctr, urcu_gp_ctr + RCU_GP_COUNT);
        wait_for_quiescent_state();
        internal_urcu_unlock();