linux mq启动命令

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <mqueue.h>

#define QUEUE_NAME "/my_queue"
#define MAX_MSG_SIZE 100
#define MSG_PRIORITY 1

int main() {
    mqd_t mq;
    struct mq_attr attr;
    char buffer[MAX_MSG_SIZE + 1];

    // 设置队列属性
    attr.mq_flags = 0;
    attr.mq_maxmsg = 10;
    attr.mq_msgsize = MAX_MSG_SIZE;
    attr.mq_curmsgs = 0;

    // 创建队列
    mq = mq_open(QUEUE_NAME, O_CREAT | O_RDWR, 0644, &attr);
    if (mq == (mqd_t)-1) {
        perror("mq_open");
        exit(1);
    }

    // 发送消息
    if (mq_send(mq, "Hello, World!", strlen("Hello, World!"), MSG_PRIORITY) == -1) {
        perror("mq_send");
        mq_close(mq);
        mq_unlink(QUEUE_NAME);
        exit(1);
    }

    // 接收消息
    if (mq_receive(mq, buffer, MAX_MSG_SIZE, NULL) == -1) {
        perror("mq_receive");
        mq_close(mq);
        mq_unlink(QUEUE_NAME);
        exit(1);
    }

    buffer[MAX_MSG_SIZE] = '\0';
    printf("Received message: %s
", buffer);

    // 关闭并删除队列
    mq_close(mq);
    mq_unlink(QUEUE_NAME);

    return 0;
}

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/msg.h>

#define MSG_KEY 1234
#define MSG_TYPE 1

struct msgbuf {
    long mtype;
    char mtext[100];
};

int main() {
    int msgid;
    struct msgbuf sbuf, rbuf;

    // 创建消息队列
    msgid = msgget(MSG_KEY, 0644 | IPC_CREAT);
    if (msgid == -1) {
        perror("msgget");
        exit(1);
    }

    // 发送消息
    sbuf.mtype = MSG_TYPE;
    strcpy(sbuf.mtext, "Hello, World!");
    if (msgsnd(msgid, &sbuf, sizeof(sbuf.mtext), 0) == -1) {
        perror("msgsnd");
        msgctl(msgid, IPC_RMID, NULL);
        exit(1);
    }

    // 接收消息
    if (msgrcv(msgid, &rbuf, sizeof(rbuf.mtext), MSG_TYPE, 0) == -1) {
        perror("msgrcv");
        msgctl(msgid, IPC_RMID, NULL);
        exit(1);
    }

    printf("Received message: %s
", rbuf.mtext);

    // 删除消息队列
    if (msgctl(msgid, IPC_RMID, NULL) == -1) {
        perror("msgctl");
        exit(1);
    }

    return 0;
}