01mqopen.cpp

//
// Created by jxq on 19-8-14.
//

// p34 poxis消息队列

#include <errno.h>
#include <unistd.h>
#include <iostream>
#include <stdio.h>
#include <cstring>

#include <fcntl.h>           /* For O_* constants */
#include <sys/stat.h>        /* For mode constants */
#include <mqueue.h>

using namespace std;

#define ERR_EXIT(m) \
        do  \
        {   \
            perror(m);  \
            exit(EXIT_FAILURE); \
        } while (0);

int main(int argc, char** argv)
{
    // mq_overview
    mqd_t mqid = mq_open("/abc", O_CREAT | O_RDWR, 0666, NULL);
    if (mqid == ((mqd_t) -1))
    {
        ERR_EXIT("mq_open");
    }

    printf("mqopen success\n");
    mq_close(mqid);
    printf("mqclose success\n");
    return 0;
}