Test: Atomic Variable

This file provides implementation of atomic_test(). It tests the functionality of the atomic variable API.
Scope of the Test

API tested:
This file is pjlib-test/atomic.c
/* $Id: atomic.c 3553 2011-05-05 06:14:19Z nanang $ */
/* 
 * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
 * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
 */
#include "test.h"
#include <pjlib.h>

#if INCLUDE_ATOMIC_TEST

int atomic_test(void)
{
    pj_pool_t *pool;
    pj_atomic_t *atomic_var;
    pj_status_t rc;

    pool = pj_pool_create(mem, NULL, 4096, 0, NULL);
    if (!pool)
        return -10;

    /* create() */
    rc = pj_atomic_create(pool, 111, &atomic_var);
    if (rc != 0) {
        return -20;
    }

    /* get: check the value. */
    if (pj_atomic_get(atomic_var) != 111)
        return -30;

    /* increment. */
    pj_atomic_inc(atomic_var);
    if (pj_atomic_get(atomic_var) != 112)
        return -40;

    /* decrement. */
    pj_atomic_dec(atomic_var);
    if (pj_atomic_get(atomic_var) != 111)
        return -50;

    /* set */
    pj_atomic_set(atomic_var, 211);
    if (pj_atomic_get(atomic_var) != 211)
        return -60;

    /* add */
    pj_atomic_add(atomic_var, 10);
    if (pj_atomic_get(atomic_var) != 221)
        return -60;

    /* check the value again. */
    if (pj_atomic_get(atomic_var) != 221)
        return -70;

    /* destroy */
    rc = pj_atomic_destroy(atomic_var);
    if (rc != 0)
        return -80;

    pj_pool_release(pool);

    return 0;
}


#else
/* To prevent warning about "translation unit is empty"
 * when this test is disabled. 
 */
int dummy_atomic_test;
#endif  /* INCLUDE_ATOMIC_TEST */