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/mbox_simple.c | 122 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 122 insertions(+) create mode 100644 examples/kernel/mbox_simple.c (limited to 'examples/kernel/mbox_simple.c') diff --git a/examples/kernel/mbox_simple.c b/examples/kernel/mbox_simple.c new file mode 100644 index 0000000000..5e176b043e --- /dev/null +++ b/examples/kernel/mbox_simple.c @@ -0,0 +1,122 @@ +/* + * 程序清单：邮箱例程 + * + * 这个程序会创建2个动态线程，一个静态的邮箱对象，其中一个线程往邮箱中发送邮件， + * 一个线程往邮箱中收取邮件。 + */ +#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 struct rt_mailbox mb; +static char mb_pool[128]; +static char mb_str1[] = "I'm a mail!"; +static char mb_str2[] = "this is another mail!"; + +/* 线程1入口 */ +static void thread1_entry(void* parameter) +{ + unsigned char* str; + + while (1) + { + rt_kprintf("thread1: try to recv a mail\n"); + if (rt_mb_recv(&mb, (rt_uint32_t*)&str, RT_WAITING_FOREVER) == RT_EOK) + { + rt_kprintf("thread1: get a mail from mailbox, the content:%s\n", str); + + rt_thread_delay(100); + } + } +} + +/* 线程2入口 */ +static void thread2_entry(void* parameter) +{ + rt_uint8_t count; + + count = 0; + while (1) + { + count ++; + if (count & 0x1) + { + rt_mb_send(&mb, (rt_uint32_t)&mb_str1[0]); + } + else + { + rt_mb_send(&mb, (rt_uint32_t)&mb_str2[0]); + } + + rt_thread_delay(200); + } +} + +int mbox_simple_init() +{ + /* 初始化一个mailbox */ + rt_mb_init(&mb, "mbt", &mb_pool[0], 128 / 4, 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); + + 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); + + /* 调度器解锁 */ + rt_exit_critical(); + + /* 设置TestCase状态 */ + tc_done(TC_STAT_PASSED); +} + +int _tc_mbox_simple() +{ + /* 设置TestCase清理回调函数 */ + tc_cleanup(_tc_cleanup); + mbox_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_mbox_simple, a simple mailbox example); +#else +/* 用户应用入口 */ +int rt_application_init() +{ + mbox_simple_init(); + + return 0; +} +#endif -- cgit v1.3.1