From 8d19f32ac25997d0045f5abfc2d7ff7ca9bd26ed Mon Sep 17 00:00:00 2001 From: "bernard.xiong" Date: Mon, 22 Mar 2010 09:17:38 +0000 Subject: add event, mailbox, message queue and timer simple examples. git-svn-id: https://rt-thread.googlecode.com/svn/trunk@524 bbd45198-f89e-11dd-88c7-29a3b14d5316 --- examples/kernel/event_simple.c | 144 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 144 insertions(+) create mode 100644 examples/kernel/event_simple.c (limited to 'examples/kernel/event_simple.c') diff --git a/examples/kernel/event_simple.c b/examples/kernel/event_simple.c new file mode 100644 index 0000000000..c98d99a2ab --- /dev/null +++ b/examples/kernel/event_simple.c @@ -0,0 +1,144 @@ +/* + * 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 -- cgit v1.3.1