X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=tests%2Fbenchmark%2Ftest_rwlock_timing.c;h=2bae56ca275b676bfff217a7ec226f093ca42bee;hb=HEAD;hp=d916071f61b459f9ea4f8ea24ec74445cd2b6e9c;hpb=f5ab766ee2c8300cb00ca5878b1cb464f960a66d;p=urcu.git

diff --git a/tests/benchmark/test_rwlock_timing.c b/tests/benchmark/test_rwlock_timing.c
index d916071..2bae56c 100644
--- a/tests/benchmark/test_rwlock_timing.c
+++ b/tests/benchmark/test_rwlock_timing.c
@@ -1,26 +1,11 @@
+// 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.
  */
 
-#define _GNU_SOURCE
 #include <stdio.h>
 #include <pthread.h>
 #include <stdlib.h>
@@ -29,11 +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"
 
@@ -43,7 +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 };
 
@@ -61,13 +50,15 @@ static int num_write;
 #define NR_READ num_read
 #define NR_WRITE num_write
 
-static cycles_t __attribute__((aligned(CAA_CACHE_LINE_SIZE))) *reader_time;
-static cycles_t __attribute__((aligned(CAA_CACHE_LINE_SIZE))) *writer_time;
+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;
-	cycles_t time1, time2;
+	unsigned int i, j;
+	int ret;
+	caa_cycles_t time1, time2;
 
 	printf("thread_begin %s, tid %lu\n",
 		"reader", urcu_get_thread_id());
@@ -76,9 +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();
@@ -92,10 +93,12 @@ void *thr_reader(void *arg)
 
 }
 
+static
 void *thr_writer(void *arg)
 {
-	int i, j;
-	cycles_t time1, time2;
+	unsigned int i, j;
+	int ret;
+	caa_cycles_t time1, time2;
 
 	printf("thread_begin %s, tid %lu\n",
 		"writer", urcu_get_thread_id());
@@ -104,9 +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);
@@ -124,8 +138,8 @@ int main(int argc, char **argv)
 	pthread_t *tid_reader, *tid_writer;
 	void *tret;
 	int i;
-	cycles_t tot_rtime = 0;
-	cycles_t tot_wtime = 0;
+	caa_cycles_t tot_rtime = 0;
+	caa_cycles_t tot_wtime = 0;
 
 	if (argc < 2) {
 		printf("Usage : %s nr_readers nr_writers\n", argv[0]);
@@ -134,6 +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));
@@ -174,6 +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);