Unlikely for tests

[urcu.git] / test_rwlock.c

diff --git a/test_rwlock.c b/test_rwlock.c
index 76156cb01064e335b729be9458f0fdd9a0720c16..1c29d73839adaec693c53a2315c8e0cd8a2a1be0 100644 (file)
--- a/test_rwlock.c
+++ b/test_rwlock.c
@@ -65,7 +65,7 @@ static volatile int test_go, test_stop;
 
 static int wdelay;
 
-static struct test_array test_array = { 8 };
+static volatile struct test_array test_array = { 8 };
 
 static unsigned long duration;
 
@@ -127,7 +127,7 @@ void *thr_reader(void *_count)
                assert(test_array.a == 8);
                pthread_rwlock_unlock(&lock);
                nr_reads++;
-               if (!test_duration_read())
+               if (unlikely(!test_duration_read()))
                        break;
        }
 
@@ -152,12 +152,13 @@ void *thr_writer(void *_count)
 
        for (;;) {
                pthread_rwlock_wrlock(&lock);
+               test_array.a = 0;
                test_array.a = 8;
                pthread_rwlock_unlock(&lock);
                nr_writes++;
-               if (!test_duration_write())
+               if (unlikely(!test_duration_write()))
                        break;
-               if (wdelay)
+               if (unlikely(wdelay))
                        usleep(wdelay);
        }