/*
 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this list of
 * conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
 * of conditions and the following disclaimer in the documentation and/or other materials
 * provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
 * to endorse or promote products derived from this software without specific prior written
 * permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
#include "it_mutex_test.h"

static pthread_mutex_t g_mutexLock;

static int g_testToCount = 0;
static int g_testBackCount = 0;

static void *ThreadFuncTest3(void *a)
{
    int ret;
    pthread_t thread = pthread_self();

    ret = pthread_detach(thread);
    ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);

    g_testToCount++;
    ret = pthread_mutex_lock(&g_mutexLock);
    ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);

    g_testToCount++;
    ret = pthread_mutex_unlock(&g_mutexLock);
    ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);

EXIT:
    return nullptr;
}

static void *ThreadFuncTest2(void *a)
{
    int ret;

    g_testBackCount++;
    ret = pthread_mutex_lock(&g_mutexLock);
    ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);

    g_testBackCount++;
    ret = pthread_mutex_unlock(&g_mutexLock);
    ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);

EXIT:
    return nullptr;
}

static int TestCase(void)
{
    struct sched_param param = { 0 };
    int ret;
    int currThreadPri, currThreadPolicy;
    pthread_attr_t a = { 0 };
    pthread_t newPthread;
    pthread_mutexattr_t mutex;
    pthread_mutexattr_settype(&mutex, PTHREAD_MUTEX_NORMAL);
    pthread_mutex_init(&g_mutexLock, &mutex);

    g_testToCount = 0;
    g_testBackCount = 0;

    SLEEP_AND_YIELD(1);

    ret = pthread_mutex_lock(&g_mutexLock);
    ICUNIT_ASSERT_EQUAL(ret, 0, ret);

    ret = pthread_getschedparam(pthread_self(), &currThreadPolicy, &param);
    ICUNIT_ASSERT_EQUAL(ret, 0, ret);

    currThreadPri = param.sched_priority;

    // 2, Set the priority according to the task purpose,a smaller number means a higher priority.
    param.sched_priority = currThreadPri - 2;
    pthread_attr_init(&a);
    pthread_attr_setinheritsched(&a, PTHREAD_EXPLICIT_SCHED);
    pthread_attr_setschedparam(&a, &param);
    pthread_attr_setschedpolicy(&a, currThreadPolicy);
    ret = pthread_create(&newPthread, &a, ThreadFuncTest3, 0);
    ICUNIT_ASSERT_EQUAL(ret, 0, ret);

    SLEEP_AND_YIELD(5); // 5, delay enouge time

    ICUNIT_ASSERT_EQUAL(g_testToCount, 1, g_testToCount);

    ret = pthread_create(&newPthread, nullptr, ThreadFuncTest2, 0);
    ICUNIT_ASSERT_EQUAL(ret, 0, ret);

    SLEEP_AND_YIELD(5); // 5, delay enouge time

    ICUNIT_ASSERT_EQUAL(g_testBackCount, 1, g_testBackCount);

    ret = pthread_mutex_unlock(&g_mutexLock);
    ICUNIT_ASSERT_EQUAL(ret, 0, ret);

    ret = pthread_join(newPthread, nullptr);
    ICUNIT_ASSERT_EQUAL(ret, 0, ret);

    ICUNIT_ASSERT_EQUAL(g_testBackCount, 2, g_testBackCount); // 2,The expected value
    ICUNIT_ASSERT_EQUAL(g_testToCount, 2, g_testToCount); // 2,The expected value

    pthread_mutex_destroy(&g_mutexLock);
    return 0;
}

void ItTestPthreadMutex017(void)
{
    TEST_ADD_CASE("IT_POSIX_PTHREAD_MUTEX_017", TestCase, TEST_POSIX, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION);
}