It_pid_container_026.cpp

/*
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 * 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.
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 * 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,
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 */
#include "It_container_test.h"

static int childFunc(void *arg)
{
    (void)arg;
    sleep(1);
    return 0;
}

void ItPidContainer026(void)
{
    int ret;
    int status;
    char *containerType = "pid";
    char *containerType1 = "pid_for_children";

    char *stack = (char *)mmap(NULL, STACK_SIZE, PROT_READ | PROT_WRITE, CLONE_STACK_MMAP_FLAG, -1, 0);
    ASSERT_NE(stack, nullptr);
    char *stackTop = stack + STACK_SIZE;
    std::cout << getpid() << std::endl;
    auto linkBuffer = ReadlinkContainer(getpid(), containerType);
    auto linkBuffer1 = ReadlinkContainer(getpid(), containerType1);
    ret = linkBuffer.compare(linkBuffer1);
    ASSERT_EQ(ret, 0);

    auto pid = clone(childFunc, stackTop, CLONE_NEWPID | SIGCHLD, NULL);
    ASSERT_TRUE(pid != -1);

    auto linkBuffer2 = ReadlinkContainer(pid, containerType);
    ret = linkBuffer.compare(linkBuffer2);
    ASSERT_NE(ret, 0);

    ret = waitpid(pid, &status, 0);
    ASSERT_EQ(ret, pid);

    ret = WIFEXITED(status);
    ASSERT_NE(ret, 0);

    int exitCode = WEXITSTATUS(status);
    ASSERT_EQ(exitCode, 0);
}