fix: handle EINTR correctly in get_cpu_mask_from_sysfs

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

diff --git a/tests/benchmark/test_rwlock_timing.c b/tests/benchmark/test_rwlock_timing.c
index a52da38f259801b8f21573c9822b0068c3ce3a13..2bae56ca275b676bfff217a7ec226f093ca42bee 100644 (file)
--- a/tests/benchmark/test_rwlock_timing.c
+++ b/tests/benchmark/test_rwlock_timing.c
@@ -1,23 +1,9 @@
+// SPDX-FileCopyrightText: 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+//
+// SPDX-License-Identifier: GPL-2.0-or-later
+
 /*
- * test_urcu.c
- *
  * Userspace RCU library - test program
- *
- * Copyright February 2009 - Mathieu Desnoyers <mathieu.desnoyers@efficios.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>
@@ -28,11 +14,11 @@
 #include <sys/wait.h>
 #include <unistd.h>
 #include <stdio.h>
-#include <assert.h>
 #include <pthread.h>
 #include <errno.h>
 
 #include <urcu/arch.h>
+#include <urcu/assert.h>
 
 #include "thread-id.h"
 
@@ -42,7 +28,11 @@ struct test_array {
        int a;
 };
 
-pthread_rwlock_t lock = PTHREAD_RWLOCK_INITIALIZER;
+/*
+ * static rwlock initializer is broken on Cygwin. Use runtime
+ * initialization.
+ */
+pthread_rwlock_t lock;
 
 static struct test_array test_array = { 8 };
 
@@ -63,9 +53,11 @@ static int num_write;
 static caa_cycles_t __attribute__((aligned(CAA_CACHE_LINE_SIZE))) *reader_time;
 static caa_cycles_t __attribute__((aligned(CAA_CACHE_LINE_SIZE))) *writer_time;
 
+static
 void *thr_reader(void *arg)
 {
-       int i, j;
+       unsigned int i, j;
+       int ret;
        caa_cycles_t time1, time2;
 
        printf("thread_begin %s, tid %lu\n",
@@ -75,9 +67,19 @@ void *thr_reader(void *arg)
        time1 = caa_get_cycles();
        for (i = 0; i < OUTER_READ_LOOP; i++) {
                for (j = 0; j < INNER_READ_LOOP; j++) {
-                       pthread_rwlock_rdlock(&lock);
-                       assert(test_array.a == 8);
-                       pthread_rwlock_unlock(&lock);
+                       ret = pthread_rwlock_rdlock(&lock);
+                       if (ret) {
+                               fprintf(stderr, "reader pthread_rwlock_rdlock: %s\n", strerror(ret));
+                               abort();
+                       }
+
+                       urcu_posix_assert(test_array.a == 8);
+
+                       ret = pthread_rwlock_unlock(&lock);
+                       if (ret) {
+                               fprintf(stderr, "reader pthread_rwlock_unlock: %s\n", strerror(ret));
+                               abort();
+                       }
                }
        }
        time2 = caa_get_cycles();
@@ -91,9 +93,11 @@ void *thr_reader(void *arg)
 
 }
 
+static
 void *thr_writer(void *arg)
 {
-       int i, j;
+       unsigned int i, j;
+       int ret;
        caa_cycles_t time1, time2;
 
        printf("thread_begin %s, tid %lu\n",
@@ -103,9 +107,20 @@ void *thr_writer(void *arg)
        for (i = 0; i < OUTER_WRITE_LOOP; i++) {
                for (j = 0; j < INNER_WRITE_LOOP; j++) {
                        time1 = caa_get_cycles();
-                       pthread_rwlock_wrlock(&lock);
+                       ret = pthread_rwlock_wrlock(&lock);
+                       if (ret) {
+                               fprintf(stderr, "writer pthread_rwlock_wrlock: %s\n", strerror(ret));
+                               abort();
+                       }
+
                        test_array.a = 8;
-                       pthread_rwlock_unlock(&lock);
+
+                       ret = pthread_rwlock_unlock(&lock);
+                       if (ret) {
+                               fprintf(stderr, "writer pthread_rwlock_unlock: %s\n", strerror(ret));
+                               abort();
+                       }
+
                        time2 = caa_get_cycles();
                        writer_time[(unsigned long)arg] += time2 - time1;
                        usleep(1);
@@ -133,6 +148,12 @@ int main(int argc, char **argv)
        num_read = atoi(argv[1]);
        num_write = atoi(argv[2]);
 
+       err = pthread_rwlock_init(&lock, NULL);
+       if (err != 0) {
+               fprintf(stderr, "pthread_rwlock_init: (%d) %s\n", err, strerror(err));
+               exit(1);
+       }
+
        reader_time = calloc(num_read, sizeof(*reader_time));
        writer_time = calloc(num_write, sizeof(*writer_time));
        tid_reader = calloc(num_read, sizeof(*tid_reader));
@@ -173,6 +194,11 @@ int main(int argc, char **argv)
        printf("Time per write : %g cycles\n",
               (double)tot_wtime / ((double)NR_WRITE * (double)WRITE_LOOP));
 
+       err = pthread_rwlock_destroy(&lock);
+       if (err != 0) {
+               fprintf(stderr, "pthread_rwlock_destroy: (%d) %s\n", err, strerror(err));
+               exit(1);
+       }
        free(reader_time);
        free(writer_time);
        free(tid_reader);