+/*
+ * 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>
static struct test_array *test_rcu_pointer;
-#define NR_READ 1000
-#define NR_WRITE 50
+#define NR_READ 10
+#define NR_WRITE 9
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());
+ "reader", pthread_self(), (unsigned long)getpid());
sleep(2);
urcu_register_thread();
for (i = 0; i < 1000; 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 (j = 0; j < 100000000; j++) {
+ 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);
+ }
+ rcu_read_unlock(qparity);
}
- rcu_read_unlock(qparity);
}
urcu_unregister_thread();
struct test_array *new, *old;
printf("thread %s, thread id : %lu, pid %lu\n",
- "writer", pthread_self(), getpid());
+ "writer", pthread_self(), (unsigned long)getpid());
sleep(2);
- for (i = 0; i < 1000; i++) {
+ for (i = 0; i < 100000; i++) {
rcu_write_lock();
new = malloc(sizeof(struct test_array));
old = test_rcu_pointer;
assert(old->b == 12);
assert(old->c[55] == 2);
}
- assert(new->a = 8);
- assert(new->b = 12);
- assert(new->c[55] = 2);
+ new->a = 8;
+ new->b = 12;
+ new->c[55] = 2;
old = urcu_publish_content(&test_rcu_pointer, new);
rcu_write_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);