VxWorks任务间通信示例与解决方案

VxWorks操作系统中，任务间通信至关重要。通过消息队列实现任务间数据传递，促进系统模块之间的协作。以下示例展示了如何使用VxWorks消息队列进行任务间通信。

#include <vxWorks.h>
#include <msgQLib.h>
#include <stdio.h>

#define MSG_SIZE 50
#define MAX_MSGS 10

MSG_Q_ID msgQId;

void task1() {
    char message[MSG_SIZE] = "Hello from Task 1!";
    while (1) {
        msgQSend(msgQId, message, sizeof(message), WAIT_FOREVER, MSG_PRI_NORMAL);
        taskDelay(100); // Delay for demonstration purposes
    }
}

void task2() {
    char receivedMsg[MSG_SIZE];
    UINT32 receivedBytes;
    while (1) {
        msgQReceive(msgQId, receivedMsg, MSG_SIZE, WAIT_FOREVER);
        printf("Received Message in Task 2: %s\n", receivedMsg);
    }
}

void vxWorksTaskCommunicationExample() {
    msgQId = msgQCreate(MAX_MSGS, MSG_SIZE, MSG_Q_FIFO);
    taskSpawn("t1", 100, 0, 2000, (FUNCPTR)task1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
    taskSpawn("t2", 100, 0, 2000, (FUNCPTR)task2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
}

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