/*
 * Copyright (c) 2023-2023 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_container_test.h"

const int TEST_COUNT = 5;
const int TEST_PARENT_SLEEP_TIME = 3;
static int Child(void *p)
{
    (void)p;
    pid_t pid1 = fork();
    if (pid1 == 0) {
        pid_t pid3 = fork();
        if (pid3 == 0) {
            sleep(TEST_PARENT_SLEEP_TIME);
            exit(0);
        }

        sleep(TEST_PARENT_SLEEP_TIME);
        if (getppid() != 1) {
            exit(EXIT_CODE_ERRNO_3);
        }
        exit(0);
    }

    pid_t pid2 = fork();
    if (pid2 == 0) {
        sleep(TEST_PARENT_SLEEP_TIME);

        if (getppid() != 1) {
            exit(EXIT_CODE_ERRNO_4);
        }
        exit(0);
    }

    exit(0);
}

static int ChildFun(void *p)
{
    (void)p;
    int ret;
    int count = 2;
    int status = 0;

    pid_t pid1 = fork();
    if (pid1 == 0) {
        (void)Child(NULL);
    }

    ret = waitpid(pid1, &status, 0);
    if ((ret != pid1) || (WIFEXITED(status) == 0)) {
        exit(EXIT_CODE_ERRNO_2);
    }
    if (WEXITSTATUS(status) != 0) {
        exit(WEXITSTATUS(status));
    }

    while (count > 0) {
        ret = wait(&status);
        if ((ret < 0) || (WIFEXITED(status) == 0)) {
            exit(EXIT_CODE_ERRNO_3);
        }
        if (WEXITSTATUS(status) != 0) {
            exit(WEXITSTATUS(status));
        }
        count--;
    }

    return 0;
}

void ItPidContainer020(void)
{
    int status;
    int ret;
    void *pstk = malloc(STACK_SIZE);
    ASSERT_TRUE(pstk != NULL);
    int childPid = clone(ChildFun, (char *)pstk + STACK_SIZE, CLONE_NEWPID | SIGCHLD, NULL);
    free(pstk);
    ASSERT_NE(childPid, -1);

    ret = waitpid(childPid, &status, 0);
    ASSERT_EQ(ret, childPid);
    ret = WIFEXITED(status);
    ASSERT_NE(ret, 0);
    ret = WEXITSTATUS(status);
    ASSERT_EQ(ret, 0);

    sleep(5); /* 5: Wait for process resources to be reclaimed */
}