fix: handle EINTR correctly in get_cpu_mask_from_sysfs

[urcu.git] / tests / benchmark / test_urcu_lfq.c

diff --git a/tests/benchmark/test_urcu_lfq.c b/tests/benchmark/test_urcu_lfq.c
index 77ccb85b0e777714b624547b0d7a0986c1188fc7..66cf78ca36aa0e4668e663461cd2c84a7c12f8c6 100644 (file)
--- a/tests/benchmark/test_urcu_lfq.c
+++ b/tests/benchmark/test_urcu_lfq.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_lfq.c
- *
  * Userspace RCU library - example RCU-based lock-free 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>
@@ -31,10 +17,10 @@
 #include <sys/wait.h>
 #include <unistd.h>
 #include <stdio.h>
-#include <assert.h>
 #include <errno.h>
 
 #include <urcu/arch.h>
+#include <urcu/assert.h>
 #include <urcu/tls-compat.h>
 #include "thread-id.h"
 
@@ -47,8 +33,6 @@
 #include <urcu.h>
 #include <urcu/cds.h>
 
-static volatile int test_go, test_stop;
-
 static unsigned long rduration;
 
 static unsigned long duration;
@@ -78,7 +62,7 @@ pthread_mutex_t affinity_mutex = PTHREAD_MUTEX_INITIALIZER;
 
 static void set_affinity(void)
 {
-#if HAVE_SCHED_SETAFFINITY
+#ifdef HAVE_SCHED_SETAFFINITY
        cpu_set_t mask;
        int cpu, ret;
 #endif /* HAVE_SCHED_SETAFFINITY */
@@ -86,7 +70,7 @@ static void set_affinity(void)
        if (!use_affinity)
                return;
 
-#if HAVE_SCHED_SETAFFINITY
+#ifdef HAVE_SCHED_SETAFFINITY
        ret = pthread_mutex_lock(&affinity_mutex);
        if (ret) {
                perror("Error in pthread mutex lock");
@@ -110,12 +94,12 @@ static void set_affinity(void)
  */
 static int test_duration_dequeue(void)
 {
-       return !test_stop;
+       return test_duration_read();
 }
 
 static int test_duration_enqueue(void)
 {
-       return !test_stop;
+       return test_duration_write();
 }
 
 static DEFINE_URCU_TLS(unsigned long long, nr_dequeues);
@@ -146,10 +130,7 @@ void *thr_enqueuer(void *_count)
 
        rcu_register_thread();
 
-       while (!test_go)
-       {
-       }
-       cmm_smp_mb();
+       wait_until_go();
 
        for (;;) {
                struct test *node = malloc(sizeof(*node));
@@ -202,10 +183,7 @@ void *thr_dequeuer(void *_count)
 
        rcu_register_thread();
 
-       while (!test_go)
-       {
-       }
-       cmm_smp_mb();
+       wait_until_go();
 
        for (;;) {
                struct cds_lfq_node_rcu *qnode;
@@ -241,24 +219,24 @@ void *thr_dequeuer(void *_count)
 }
 
 static
-void test_end(struct cds_lfq_queue_rcu *q, unsigned long long *nr_dequeues)
+void test_end(unsigned long long *nr_dequeues_l)
 {
        struct cds_lfq_node_rcu *snode;
 
        do {
-               snode = cds_lfq_dequeue_rcu(q);
+               snode = cds_lfq_dequeue_rcu(&q);
                if (snode) {
                        struct test *node;
 
                        node = caa_container_of(snode, struct test, list);
                        free(node);     /* no more concurrent access */
-                       (*nr_dequeues)++;
+                       (*nr_dequeues_l)++;
                }
        } while (snode);
 }
 
 static
-void show_usage(int argc, char **argv)
+void show_usage(char **argv)
 {
        printf("Usage : %s nr_dequeuers nr_enqueuers duration (s) <OPTIONS>\n",
                argv[0]);
@@ -284,25 +262,25 @@ int main(int argc, char **argv)
        unsigned int i_thr;
 
        if (argc < 4) {
-               show_usage(argc, argv);
+               show_usage(argv);
                return -1;
        }
 
        err = sscanf(argv[1], "%u", &nr_dequeuers);
        if (err != 1) {
-               show_usage(argc, argv);
+               show_usage(argv);
                return -1;
        }
 
        err = sscanf(argv[2], "%u", &nr_enqueuers);
        if (err != 1) {
-               show_usage(argc, argv);
+               show_usage(argv);
                return -1;
        }
 
        err = sscanf(argv[3], "%lu", &duration);
        if (err != 1) {
-               show_usage(argc, argv);
+               show_usage(argv);
                return -1;
        }
 
@@ -312,7 +290,7 @@ int main(int argc, char **argv)
                switch (argv[i][1]) {
                case 'a':
                        if (argc < i + 2) {
-                               show_usage(argc, argv);
+                               show_usage(argv);
                                return -1;
                        }
                        a = atoi(argv[++i]);
@@ -322,14 +300,14 @@ int main(int argc, char **argv)
                        break;
                case 'c':
                        if (argc < i + 2) {
-                               show_usage(argc, argv);
+                               show_usage(argv);
                                return -1;
                        }
                        rduration = atol(argv[++i]);
                        break;
                case 'd':
                        if (argc < i + 2) {
-                               show_usage(argc, argv);
+                               show_usage(argv);
                                return -1;
                        }
                        wdelay = atol(argv[++i]);
@@ -375,7 +353,7 @@ 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);
@@ -385,7 +363,7 @@ int main(int argc, char **argv)
                }
        }
 
-       test_stop = 1;
+       end_test();
 
        for (i_thr = 0; i_thr < nr_enqueuers; i_thr++) {
                err = pthread_join(tid_enqueuer[i_thr], &tret);
@@ -402,9 +380,9 @@ int main(int argc, char **argv)
                tot_successful_dequeues += count_dequeuer[2 * i_thr + 1];
        }
 
-       test_end(&q, &end_dequeues);
+       test_end(&end_dequeues);
        err = cds_lfq_destroy_rcu(&q);
-       assert(!err);
+       urcu_posix_assert(!err);
 
        printf_verbose("total number of enqueues : %llu, dequeues %llu\n",
                       tot_enqueues, tot_dequeues);