154 lines
4.0 KiB
C
154 lines
4.0 KiB
C
/*
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* 程序清单：事件例程
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*
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* 这个程序会创建3个动态线程及初始化一个静态事件对象
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* 一个线程等于事件对象上以接收事件；
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* 一个线程定时发送事件 (事件3)
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* 一个线程定时发送事件 (事件5)
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*/
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#include <rtthread.h>
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#include <time.h>
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#include "tc_comm.h"
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/* 指向线程控制块的指针 */
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static rt_thread_t tid1 = RT_NULL;
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static rt_thread_t tid2 = RT_NULL;
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static rt_thread_t tid3 = RT_NULL;
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/* 事件控制块 */
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static struct rt_event event;
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/* 线程1入口函数 */
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static void thread1_entry(void *param)
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{
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rt_uint32_t e;
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while (1)
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{
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/* receive first event */
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if (rt_event_recv(&event, ((1 << 3) | (1 << 5)),
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RT_EVENT_FLAG_AND | RT_EVENT_FLAG_CLEAR,
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RT_WAITING_FOREVER, &e) == RT_EOK)
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{
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rt_kprintf("thread1: AND recv event 0x%x\n", e);
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}
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rt_kprintf("thread1: delay 1s to prepare second event\n");
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rt_thread_delay(10);
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/* receive second event */
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if (rt_event_recv(&event, ((1 << 3) | (1 << 5)),
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RT_EVENT_FLAG_OR | RT_EVENT_FLAG_CLEAR,
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RT_WAITING_FOREVER, &e) == RT_EOK)
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{
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rt_kprintf("thread1: OR recv event 0x%x\n", e);
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}
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rt_thread_delay(5);
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}
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}
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/* 线程2入口函数 */
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static void thread2_entry(void *param)
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{
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while (1)
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{
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rt_kprintf("thread2: send event1\n");
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rt_event_send(&event, (1 << 3));
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rt_thread_delay(10);
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}
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}
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/* 线程3入口函数 */
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static void thread3_entry(void *param)
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{
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while (1)
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{
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rt_kprintf("thread3: send event2\n");
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rt_event_send(&event, (1 << 5));
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rt_thread_delay(20);
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}
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}
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int event_simple_init()
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{
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/* 初始化事件对象 */
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rt_event_init(&event, "event", RT_IPC_FLAG_FIFO);
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/* 创建线程1 */
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tid1 = rt_thread_create("t1",
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thread1_entry, RT_NULL, /* 线程入口是thread1_entry, 入口参数是RT_NULL */
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THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE);
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if (tid1 != RT_NULL)
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rt_thread_startup(tid1);
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else
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tc_stat(TC_STAT_END | TC_STAT_FAILED);
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/* 创建线程2 */
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tid2 = rt_thread_create("t2",
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thread2_entry, RT_NULL, /* 线程入口是thread2_entry, 入口参数是RT_NULL */
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THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE);
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if (tid2 != RT_NULL)
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rt_thread_startup(tid2);
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else
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tc_stat(TC_STAT_END | TC_STAT_FAILED);
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/* 创建线程3 */
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tid3 = rt_thread_create("t3",
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thread3_entry, RT_NULL, /* 线程入口是thread3_entry, 入口参数是RT_NULL */
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THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE);
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if (tid3 != RT_NULL)
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rt_thread_startup(tid3);
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else
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tc_stat(TC_STAT_END | TC_STAT_FAILED);
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return 0;
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}
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#ifdef RT_USING_TC
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static void _tc_cleanup()
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{
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/* 调度器上锁，上锁后，将不再切换到其他线程，仅响应中断 */
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rt_enter_critical();
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/* 删除线程 */
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if (tid1 != RT_NULL && tid1->stat != RT_THREAD_CLOSE)
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rt_thread_delete(tid1);
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if (tid2 != RT_NULL && tid2->stat != RT_THREAD_CLOSE)
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rt_thread_delete(tid2);
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if (tid3 != RT_NULL && tid3->stat != RT_THREAD_CLOSE)
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rt_thread_delete(tid3);
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/* 执行事件对象脱离 */
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rt_event_detach(&event);
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/* 调度器解锁 */
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rt_exit_critical();
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/* 设置TestCase状态 */
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tc_done(TC_STAT_PASSED);
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}
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int _tc_event_simple()
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{
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/* 设置TestCase清理回调函数 */
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tc_cleanup(_tc_cleanup);
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event_simple_init();
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/* 返回TestCase运行的最长时间 */
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return 100;
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}
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/* 输出函数命令到finsh shell中 */
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FINSH_FUNCTION_EXPORT(_tc_event_simple, a simple event example);
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#else
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/* 用户应用入口 */
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int rt_application_init()
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{
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event_simple_init();
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return 0;
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}
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#endif
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