VxWorks任务调度和优先级

该示例代码展示了如何在VxWorks实时操作系统中进行任务调度和设置优先级。通过使用VxWorks任务调度API和任务优先级API，我们可以轻松地控制任务执行的顺序和优先级。示例代码中还演示了如何使用VxWorks任务管理器进行任务创建、删除和查询。编写人员可以根据自己的需求进行任务的设置和调度，以优化系统的性能。

#include <vxWorks.h>
#include <taskLib.h>

#define TASK_PRIORITY_HIGH 100
#define TASK_PRIORITY_LOW 50

void task1(void) {
    printf("Task 1 is running.\n");
    taskDelay(1);
    printf("Task 1 is done.\n");
}

void task2(void) {
    printf("Task 2 is running.\n");
    taskDelay(2);
    printf("Task 2 is done.\n");
}

void task3(void) {
    printf("Task 3 is running.\n");
    taskDelay(3);
    printf("Task 3 is done.\n");
}

void task4(void) {
    printf("Task 4 is running.\n");
    taskDelay(4);
    printf("Task 4 is done.\n");
}

void vxworks_task_schedule_demo(void) {
    int taskId1 = taskSpawn("task1", TASK_PRIORITY_HIGH, 0, 10000, (FUNCPTR) task1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
    int taskId2 = taskSpawn("task2", TASK_PRIORITY_LOW, 0, 10000, (FUNCPTR) task2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
    int taskId3 = taskSpawn("task3", TASK_PRIORITY_HIGH, 0, 10000, (FUNCPTR) task3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
    int taskId4 = taskSpawn("task4", TASK_PRIORITY_LOW, 0, 10000, (FUNCPTR) task4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
    taskDelay(10);
    taskDelete(taskId1);
    taskDelete(taskId2);
    taskDelete(taskId3);
    taskDelete(taskId4);
}

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