update Makefile, -Wall

[urcu.git] / test_urcu.c

diff --git a/test_urcu.c b/test_urcu.c
index d5d07fe52daf4d985266f5e2c896e9e4468a1771..17061f81a250d5f12f7e4836d7caf81835cd43d4 100644 (file)
--- a/test_urcu.c
+++ b/test_urcu.c
@@ -1,9 +1,132 @@
+/*
+ * 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>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
 #include <stdio.h>
+#include <assert.h>
 #include "urcu.h"
 
+struct test_array {
+       int a;
+       int b;
+       char c[200];
+};
+
+static struct test_array *test_rcu_pointer;
+
+#define NR_READ 10
+#define NR_WRITE 9
+
+
+void *thr_reader(void *arg)
+{
+       int qparity, i, j;
+       struct test_array *local_ptr;
+
+       printf("thread %s, thread id : %lu, pid %lu\n",
+                       "reader", pthread_self(), (unsigned long)getpid());
+       sleep(2);
+
+       urcu_register_thread();
+
+       for (i = 0; i < 1000; i++) {
+               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);
+               }
+       }
+
+       urcu_unregister_thread();
+
+       return ((void*)1);
+
+}
+
+void *thr_writer(void *arg)
+{
+       int i;
+       struct test_array *new, *old;
+
+       printf("thread %s, thread id : %lu, pid %lu\n",
+                       "writer", pthread_self(), (unsigned long)getpid());
+       sleep(2);
+
+       for (i = 0; i < 100000; i++) {
+               rcu_write_lock();
+               new = malloc(sizeof(struct test_array));
+               old = test_rcu_pointer;
+               if (old) {
+                       assert(old->a == 8);
+                       assert(old->b == 12);
+                       assert(old->c[55] == 2);
+               }
+               new->a = 8;
+               new->b = 12;
+               new->c[55] = 2;
+               old = urcu_publish_content((void **)&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);
+}
 
 int main()
 {
+       int err;
+       pthread_t tid_reader[NR_READ], tid_writer[NR_WRITE];
+       void *tret;
+       int i;
+
+       for (i = 0; i < NR_READ; i++) {
+               err = pthread_create(&tid_reader[i], NULL, thr_reader, NULL);
+               if (err != 0)
+                       exit(1);
+       }
+       for (i = 0; i < NR_WRITE; i++) {
+               err = pthread_create(&tid_writer[i], NULL, thr_writer, NULL);
+               if (err != 0)
+                       exit(1);
+       }
+
+       sleep(10);
 
+       for (i = 0; i < NR_WRITE; i++) {
+               err = pthread_join(tid_reader[i], &tret);
+               if (err != 0)
+                       exit(1);
+       }
+       for (i = 0; i < NR_WRITE; i++) {
+               err = pthread_join(tid_writer[i], &tret);
+               if (err != 0)
+                       exit(1);
+       }
 
+       return 0;
 }