/* * 程序清单:事件例程 * * 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 * 一个线程等于事件对象上以接收事件; * 一个线程定时发送事件 (事件3) * 一个线程定时发送事件 (事件5) */ #include #include "tc_comm.h" /* 指向线程控制块的指针 */ static rt_thread_t tid1 = RT_NULL; static rt_thread_t tid2 = RT_NULL; static rt_thread_t tid3 = RT_NULL; struct rt_event event; void thread1_entry(void *param) { rt_uint32_t e; while (1) { /* receive first event */ if (rt_event_recv(&event, ((1 << 3) | (1 << 5)), RT_EVENT_FLAG_AND | RT_EVENT_FLAG_CLEAR, RT_WAITING_FOREVER, &e) == RT_EOK) { rt_kprintf("thread1: AND recv event 0x%x\n", e); } rt_kprintf("thread1: delay 1s to prepare second event\n"); rt_thread_delay(100); /* receive second event */ if (rt_event_recv(&event, ((1 << 3) | (1 << 5)), RT_EVENT_FLAG_OR | RT_EVENT_FLAG_CLEAR, RT_WAITING_FOREVER, &e) == RT_EOK) { rt_kprintf("thread1: OR recv event 0x%x\n", e); } rt_thread_delay(50); } } void thread2_entry(void *param) { while (1) { rt_kprintf("thread2: send event1\n"); rt_event_send(&event, (1 << 3)); rt_thread_delay(100); } } void thread3_entry(void *param) { while (1) { rt_kprintf("thread3: send event2\n"); rt_event_send(&event, (1 << 5)); rt_thread_delay(200); } } int event_simple_init() { rt_event_init(&event, "event", RT_IPC_FLAG_FIFO); /* 创建线程1 */ tid1 = rt_thread_create("t1", thread1_entry, RT_NULL, /* 线程入口是thread1_entry, 入口参数是RT_NULL */ THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE); if (tid1 != RT_NULL) rt_thread_startup(tid1); else tc_stat(TC_STAT_END | TC_STAT_FAILED); /* 创建线程2 */ tid2 = rt_thread_create("t2", thread2_entry, RT_NULL, /* 线程入口是thread2_entry, 入口参数是RT_NULL */ THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE); if (tid2 != RT_NULL) rt_thread_startup(tid2); else tc_stat(TC_STAT_END | TC_STAT_FAILED); /* 创建线程3 */ tid3 = rt_thread_create("t3", thread3_entry, RT_NULL, /* 线程入口是thread3_entry, 入口参数是RT_NULL */ THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE); if (tid3 != RT_NULL) rt_thread_startup(tid3); else tc_stat(TC_STAT_END | TC_STAT_FAILED); return 0; } #ifdef RT_USING_TC static void _tc_cleanup() { /* 调度器上锁,上锁后,将不再切换到其他线程,仅响应中断 */ rt_enter_critical(); /* 删除线程 */ if (tid1 != RT_NULL && tid1->stat != RT_THREAD_CLOSE) rt_thread_delete(tid1); if (tid2 != RT_NULL && tid2->stat != RT_THREAD_CLOSE) rt_thread_delete(tid2); if (tid3 != RT_NULL && tid3->stat != RT_THREAD_CLOSE) rt_thread_delete(tid3); /* 调度器解锁 */ rt_exit_critical(); /* 设置TestCase状态 */ tc_done(TC_STAT_PASSED); } int _tc_event_simple() { /* 设置TestCase清理回调函数 */ tc_cleanup(_tc_cleanup); event_simple_init(); /* 返回TestCase运行的最长时间 */ return 100; } /* 输出函数命令到finsh shell中 */ FINSH_FUNCTION_EXPORT(_tc_event_simple, a simple event example); #else /* 用户应用入口 */ int rt_application_init() { event_simple_init(); return 0; } #endif