QNX实时操作系统下多线程通信示例与技术解答

本示例演示了在QNX实时操作系统中使用消息传递机制实现多线程通信的方法，包括消息的发送和接收，以及相关的技术解答。

#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>
#include <sys/neutrino.h>

#define MY_CHANNEL 1

void *receiver_thread(void *arg) {
    int chid = ChannelCreate(0);
    printf("接收线程等待消息...\n");

    while (1) {
        int msg;
        Receive(chid, &msg, sizeof(msg), NULL);
        printf("接收到消息：%d\n", msg);
    }

    ChannelDestroy(chid);
}

void *sender_thread(void *arg) {
    int chid = ChannelAttach(MY_CHANNEL);

    while (1) {
        int msg = rand() % 100;
        printf("发送消息：%d\n", msg);
        MsgSend(chid, &msg, sizeof(msg), NULL, 0);
        sleep(1);
    }

    ChannelDetach(chid);
}

int main() {
    pthread_t receiver, sender;

    pthread_create(&receiver, NULL, receiver_thread, NULL);
    pthread_create(&sender, NULL, sender_thread, NULL);

    pthread_join(receiver, NULL);
    pthread_join(sender, NULL);

    return 0;
}

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