VxWorks任务间通信示例及技术解答

本示例展示了在VxWorks实时操作系统中使用消息队列进行任务间通信的方法。通过消息队列，不同任务之间可以安全、高效地交换信息，实现协同工作。同时提供了常见问题的解答，帮助开发者更好地理解和应用VxWorks任务间通信。

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

#define MAX_MSG_LEN 50
#define MSG_Q_LEN   10

MSG_Q_ID msgQId;

void taskSender(void) {
    char message[MAX_MSG_LEN] = "Hello, Receiver!";
    msgQSend(msgQId, message, sizeof(message), WAIT_FOREVER, MSG_PRI_NORMAL);
}

void taskReceiver(void) {
    char receivedMsg[MAX_MSG_LEN];
    int msgLen = msgQReceive(msgQId, receivedMsg, MAX_MSG_LEN, WAIT_FOREVER);
    receivedMsg[msgLen] = '\0';
    printf("Received message: %s\n", receivedMsg);
}

void vxworksDemoInit(void) {
    msgQId = msgQCreate(MSG_Q_LEN, MAX_MSG_LEN, MSG_Q_FIFO);
    taskSpawn("senderTask", 100, 0, 2000, (FUNCPTR)taskSender, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
    taskSpawn("receiverTask", 100, 0, 2000, (FUNCPTR)taskReceiver, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
}

免责申明：文章和图片全部来源于公开网络，如有侵权，请通知删除 server@dude6.com