X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;ds=sidebyside;f=tests%2Fbenchmark%2Ftest_urcu_wfcq.c;h=71bca100cd45670e15ff452eabfab389b0023d1a;hb=HEAD;hp=2c6e0fd841842b40b6f08fe81cc75db9a6283c49;hpb=014775106c60f02818ca755b331f887030bd440f;p=urcu.git

diff --git a/tests/benchmark/test_urcu_wfcq.c b/tests/benchmark/test_urcu_wfcq.c
index 2c6e0fd..71bca10 100644
--- a/tests/benchmark/test_urcu_wfcq.c
+++ b/tests/benchmark/test_urcu_wfcq.c
@@ -1,24 +1,10 @@
+// SPDX-FileCopyrightText: 2010 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+// SPDX-FileCopyrightText: 2010 Paolo Bonzini <pbonzini@redhat.com>
+//
+// SPDX-License-Identifier: GPL-2.0-or-later
+
 /*
- * test_urcu_wfcq.c
- *
  * Userspace RCU library - example RCU-based lock-free concurrent queue
- *
- * Copyright February 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- * Copyright February 2010 - Paolo Bonzini <pbonzini@redhat.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
 #include <stdio.h>
@@ -56,7 +42,7 @@ static enum test_sync test_sync;
 
 static int test_force_sync;
 
-static volatile int test_go, test_stop_enqueue, test_stop_dequeue;
+static volatile int test_stop_enqueue, test_stop_dequeue;
 
 static unsigned long rduration;
 
@@ -122,12 +108,12 @@ static void set_affinity(void)
  */
 static int test_duration_dequeue(void)
 {
-	return !test_stop_dequeue;
+	return !uatomic_load(&test_stop_dequeue, CMM_RELAXED);
 }
 
 static int test_duration_enqueue(void)
 {
-	return !test_stop_enqueue;
+	return !uatomic_load(&test_stop_enqueue, CMM_RELAXED);
 }
 
 static DEFINE_URCU_TLS(unsigned long long, nr_dequeues);
@@ -155,10 +141,7 @@ static void *thr_enqueuer(void *_count)
 
 	set_affinity();
 
-	while (!test_go)
-	{
-	}
-	cmm_smp_mb();
+	wait_until_go();
 
 	for (;;) {
 		struct cds_wfcq_node *node = malloc(sizeof(*node));
@@ -266,10 +249,7 @@ static void *thr_dequeuer(void *_count)
 
 	set_affinity();
 
-	while (!test_go)
-	{
-	}
-	cmm_smp_mb();
+	wait_until_go();
 
 	for (;;) {
 		if (test_dequeue && test_splice) {
@@ -482,7 +462,7 @@ int main(int argc, char **argv)
 
 	cmm_smp_mb();
 
-	test_go = 1;
+	begin_test();
 
 	for (i_thr = 0; i_thr < duration; i_thr++) {
 		sleep(1);
@@ -492,7 +472,7 @@ int main(int argc, char **argv)
 		}
 	}
 
-	test_stop_enqueue = 1;
+	uatomic_store(&test_stop_enqueue, 1, CMM_RELEASE);
 
 	if (test_wait_empty) {
 		while (nr_enqueuers != uatomic_read(&test_enqueue_stopped)) {
@@ -503,7 +483,7 @@ int main(int argc, char **argv)
 		}
 	}
 
-	test_stop_dequeue = 1;
+	uatomic_store(&test_stop_dequeue, 1, CMM_RELAXED);
 
 	for (i_thr = 0; i_thr < nr_enqueuers; i_thr++) {
 		err = pthread_join(tid_enqueuer[i_thr], &tret);