X-Git-Url: https://git.lttng.org/?p=urcu.git;a=blobdiff_plain;f=test_urcu.c;h=72cceebdd331473d35e516721a9640cf2a3a737f;hp=73fbc4e204e13b032a5830e9149974f32ff7cd19;hb=af02d47e5d0712e5ccde6d8f1ee89f18de798cad;hpb=bb48818526ec4317f9e6daeb0aa1cd64d528f754

diff --git a/test_urcu.c b/test_urcu.c
index 73fbc4e..72cceeb 100644
--- a/test_urcu.c
+++ b/test_urcu.c
@@ -5,7 +5,19 @@
  *
  * Copyright February 2009 - Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
  *
- * Distributed under GPLv2
+ * 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>
@@ -34,6 +46,11 @@ static inline pid_t gettid(void)
 }
 #endif
 
+#ifndef DYNAMIC_LINK_TEST
+#define _LGPL_SOURCE
+#else
+#define debug_yield_read()
+#endif
 #include "urcu.h"
 
 struct test_array {
@@ -47,14 +64,25 @@ static struct test_array *test_rcu_pointer;
 static unsigned long duration;
 static time_t start_time;
 static unsigned long __thread duration_interval;
-#define DURATION_TEST_DELAY 100
+#define DURATION_TEST_DELAY_WRITE 4
+#define DURATION_TEST_DELAY_READ 100
 
 /*
  * returns 0 if test should end.
  */
-static int test_duration(void)
+static int test_duration_write(void)
 {
-	if (duration_interval++ >= DURATION_TEST_DELAY) {
+	if (duration_interval++ >= DURATION_TEST_DELAY_WRITE) {
+		duration_interval = 0;
+		if (time(NULL) - start_time >= duration)
+			return 0;
+	}
+	return 1;
+}
+
+static int test_duration_read(void)
+{
+	if (duration_interval++ >= DURATION_TEST_DELAY_READ) {
 		duration_interval = 0;
 		if (time(NULL) - start_time >= duration)
 			return 0;
@@ -65,6 +93,9 @@ static int test_duration(void)
 #define NR_READ 10
 #define NR_WRITE 9
 
+static unsigned long long __thread nr_writes;
+static unsigned long long __thread nr_reads;
+
 pthread_mutex_t rcu_copy_mutex = PTHREAD_MUTEX_INITIALIZER;
 
 void rcu_copy_mutex_lock(void)
@@ -124,14 +155,15 @@ static void test_array_free(struct test_array *ptr)
 	rcu_copy_mutex_unlock();
 }
 
-void *thr_reader(void *arg)
+void *thr_reader(void *_count)
 {
+	unsigned long long *count = _count;
 	struct test_array *local_ptr;
 
 	printf("thread_begin %s, thread id : %lx, tid %lu\n",
 			"reader", pthread_self(), (unsigned long)gettid());
 
-	urcu_register_thread();
+	rcu_register_thread();
 
 	for (;;) {
 		rcu_read_lock();
@@ -140,20 +172,23 @@ void *thr_reader(void *arg)
 		if (local_ptr)
 			assert(local_ptr->a == 8);
 		rcu_read_unlock();
-		if (!test_duration())
+		nr_reads++;
+		if (!test_duration_read())
 			break;
 	}
 
-	urcu_unregister_thread();
+	rcu_unregister_thread();
 
+	*count = nr_reads;
 	printf("thread_end %s, thread id : %lx, tid %lu\n",
 			"reader", pthread_self(), (unsigned long)gettid());
 	return ((void*)1);
 
 }
 
-void *thr_writer(void *arg)
+void *thr_writer(void *_count)
 {
+	unsigned long long *count = _count;
 	struct test_array *new, *old;
 
 	printf("thread_begin %s, thread id : %lx, tid %lu\n",
@@ -166,13 +201,14 @@ void *thr_writer(void *arg)
 		if (old)
 			assert(old->a == 8);
 		new->a = 8;
-		old = urcu_publish_content(&test_rcu_pointer, new);
+		old = rcu_publish_content(&test_rcu_pointer, new);
 		rcu_copy_mutex_unlock();
 		/* can be done after unlock */
 		if (old)
 			old->a = 0;
 		test_array_free(old);
-		if (!test_duration())
+		nr_writes++;
+		if (!test_duration_write())
 			break;
 		if (!no_writer_delay)
 			usleep(1);
@@ -180,6 +216,7 @@ void *thr_writer(void *arg)
 
 	printf("thread_end %s, thread id : %lx, tid %lu\n",
 			"writer", pthread_self(), (unsigned long)gettid());
+	*count = nr_writes;
 	return ((void*)2);
 }
 
@@ -198,6 +235,8 @@ int main(int argc, char **argv)
 	int err;
 	pthread_t tid_reader[NR_READ], tid_writer[NR_WRITE];
 	void *tret;
+	unsigned long long count_reader[NR_READ], count_writer[NR_WRITE];
+	unsigned long long tot_reads = 0, tot_writes = 0;
 	int i;
 
 	if (argc < 2) {
@@ -235,12 +274,14 @@ int main(int argc, char **argv)
 			"main", pthread_self(), (unsigned long)gettid());
 
 	for (i = 0; i < NR_READ; i++) {
-		err = pthread_create(&tid_reader[i], NULL, thr_reader, NULL);
+		err = pthread_create(&tid_reader[i], NULL, thr_reader,
+				     &count_reader[i]);
 		if (err != 0)
 			exit(1);
 	}
 	for (i = 0; i < NR_WRITE; i++) {
-		err = pthread_create(&tid_writer[i], NULL, thr_writer, NULL);
+		err = pthread_create(&tid_writer[i], NULL, thr_writer,
+				     &count_writer[i]);
 		if (err != 0)
 			exit(1);
 	}
@@ -249,12 +290,17 @@ int main(int argc, char **argv)
 		err = pthread_join(tid_reader[i], &tret);
 		if (err != 0)
 			exit(1);
+		tot_reads += count_reader[i];
 	}
 	for (i = 0; i < NR_WRITE; i++) {
 		err = pthread_join(tid_writer[i], &tret);
 		if (err != 0)
 			exit(1);
+		tot_writes += count_writer[i];
 	}
+	
+	printf("total number of reads : %llu, writes %llu\n", tot_reads,
+	       tot_writes);
 	test_array_free(test_rcu_pointer);
 
 	return 0;