X-Git-Url: https://git.liburcu.org/?a=blobdiff_plain;f=test_urcu.c;h=f6be45b1e2769a9f700e4bb0cf0968046db5a2e1;hb=c265818b951224bcde407b1efa14f9daf44949b3;hp=37bd43695a8264c0dfc9cce877e942c9995535bf;hpb=b1b5ce8f610ee61647b10d93d7a61b5fbf1f2ccd;p=urcu.git

diff --git a/test_urcu.c b/test_urcu.c
index 37bd436..f6be45b 100644
--- a/test_urcu.c
+++ b/test_urcu.c
@@ -1,3 +1,13 @@
+/*
+ * test_urcu.c
+ *
+ * Userspace RCU library - test program
+ *
+ * Copyright February 2009 - Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
+ *
+ * Distributed under GPLv2
+ */
+
 #include <stdio.h>
 #include <pthread.h>
 #include <stdlib.h>
@@ -7,6 +17,23 @@
 #include <unistd.h>
 #include <stdio.h>
 #include <assert.h>
+#include <sys/syscall.h>
+
+#if defined(_syscall0)
+_syscall0(pid_t, gettid)
+#elif defined(__NR_gettid)
+static inline pid_t gettid(void)
+{
+	return syscall(__NR_gettid);
+}
+#else
+#warning "use pid as tid"
+static inline pid_t gettid(void)
+{
+	return getpid();
+}
+#endif
+
 #include "urcu.h"
 
 struct test_array {
@@ -18,29 +45,53 @@ struct test_array {
 static struct test_array *test_rcu_pointer;
 
 #define NR_READ 10
-#define NR_WRITE 5
+#define NR_WRITE 9
+
+pthread_mutex_t rcu_copy_mutex = PTHREAD_MUTEX_INITIALIZER;
 
+void rcu_copy_mutex_lock(void)
+{
+	int ret;
+	ret = pthread_mutex_lock(&rcu_copy_mutex);
+	if (ret) {
+		perror("Error in pthread mutex lock");
+		exit(-1);
+	}
+}
+
+void rcu_copy_mutex_unlock(void)
+{
+	int ret;
+
+	ret = pthread_mutex_unlock(&rcu_copy_mutex);
+	if (ret) {
+		perror("Error in pthread mutex unlock");
+		exit(-1);
+	}
+}
 
 void *thr_reader(void *arg)
 {
-	int qparity, i;
+	int qparity, i, j;
 	struct test_array *local_ptr;
 
-	printf("thread %s, thread id : %lu, pid %lu\n",
-			"reader", pthread_self(), getpid());
+	printf("thread %s, thread id : %lx, tid %lu\n",
+			"reader", pthread_self(), (unsigned long)gettid());
 	sleep(2);
 
 	urcu_register_thread();
 
-	for (i = 0; i < 1000000; i++) {
-		qparity = rcu_read_lock();
-		local_ptr = rcu_dereference(test_rcu_pointer);
-		if (local_ptr) {
-			assert(local_ptr->a == 8);
-			assert(local_ptr->b == 12);
-			assert(local_ptr->c[55] == 2);
+	for (i = 0; i < 100000; i++) {
+		for (j = 0; j < 100000000; j++) {
+			rcu_read_lock(&qparity);
+			local_ptr = rcu_dereference(test_rcu_pointer);
+			if (local_ptr) {
+				assert(local_ptr->a == 8);
+				assert(local_ptr->b == 12);
+				assert(local_ptr->c[55] == 2);
+			}
+			rcu_read_unlock(&qparity);
 		}
-		rcu_read_unlock(qparity);
 	}
 
 	urcu_unregister_thread();
@@ -54,26 +105,32 @@ void *thr_writer(void *arg)
 	int i;
 	struct test_array *new, *old;
 
-	printf("thread %s, thread id : %lu, pid %lu\n",
-			"writer", pthread_self(), getpid());
+	printf("thread %s, thread id : %lx, tid %lu\n",
+			"writer", pthread_self(), (unsigned long)gettid());
 	sleep(2);
 
-	for (i = 0; i < 1000000; i++) {
-		rcu_write_lock();
+	for (i = 0; i < 10000000; i++) {
 		new = malloc(sizeof(struct test_array));
+		rcu_copy_mutex_lock();
 		old = test_rcu_pointer;
 		if (old) {
 			assert(old->a == 8);
 			assert(old->b == 12);
 			assert(old->c[55] == 2);
 		}
-		assert(new->a = 8);
-		assert(new->b = 12);
-		assert(new->c[55] = 2);
-		old = urcu_publish_content(&test_rcu_pointer, new);
-		rcu_write_unlock();
+		new->c[55] = 2;
+		new->b = 12;
+		new->a = 8;
+		old = urcu_publish_content((void **)&test_rcu_pointer, new);
+		rcu_copy_mutex_unlock();
 		/* can be done after unlock */
+		if (old) {
+			old->a = 0;
+			old->b = 0;
+			old->c[55] = 0;
+		}
 		free(old);
+		usleep(1);
 	}
 
 	return ((void*)2);
@@ -86,6 +143,9 @@ int main()
 	void *tret;
 	int i;
 
+	printf("thread %-6s, thread id : %lx, tid %lu\n",
+			"main", pthread_self(), (unsigned long)gettid());
+
 	for (i = 0; i < NR_READ; i++) {
 		err = pthread_create(&tid_reader[i], NULL, thr_reader, NULL);
 		if (err != 0)
@@ -99,7 +159,7 @@ int main()
 
 	sleep(10);
 
-	for (i = 0; i < NR_WRITE; i++) {
+	for (i = 0; i < NR_READ; i++) {
 		err = pthread_join(tid_reader[i], &tret);
 		if (err != 0)
 			exit(1);
@@ -109,6 +169,7 @@ int main()
 		if (err != 0)
 			exit(1);
 	}
+	free(test_rcu_pointer);
 
 	return 0;
 }