From a08d9637b608c2f94925e2d304080026b771e7fb Mon Sep 17 00:00:00 2001
From: "bernard.xiong" <bernard.xiong@gmail.com>
Date: Thu, 25 Mar 2010 14:35:50 +0000
Subject: add timer examples.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@542 bbd45198-f89e-11dd-88c7-29a3b14d5316
---
 examples/kernel/timer_stop_self.c | 82 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 examples/kernel/timer_stop_self.c

(limited to 'examples/kernel/timer_stop_self.c')

diff --git a/examples/kernel/timer_stop_self.c b/examples/kernel/timer_stop_self.c
new file mode 100644
index 0000000000..67d43a15ed
--- /dev/null
+++ b/examples/kernel/timer_stop_self.c
@@ -0,0 +1,82 @@
+/*
+ * 程序清单：动态定时器例程
+ *
+ * 这个例程会创建1个动态周期型定时器对象
+ */
+#include <rtthread.h>
+#include "tc_comm.h"
+
+/* 定时器的控制块 */
+static rt_timer_t timer1;
+static rt_uint8_t count;
+
+/* 定时器超时函数 */
+static void timeout1(void* parameter)
+{
+	rt_kprintf("periodic timer is timeout\n");
+
+	count ++;
+	/* 停止定时器自身 */
+	if (count >= 8)
+	{
+		/* 停止定时器 */
+		rt_timer_stop(timer1);
+		count = 0;
+	}
+}
+
+void timer_stop_self_init()
+{
+	/* 创建定时器1 */
+	timer1 = rt_timer_stop_self("timer1",  /* 定时器名字是 timer1 */
+		timeout1, /* 超时时回调的处理函数 */
+		RT_NULL, /* 超时函数的入口参数 */
+		10, /* 定时长度，以OS Tick为单位，即10个OS Tick */
+		RT_TIMER_FLAG_PERIODIC); /* 周期性定时器 */
+	/* 启动定时器 */
+	if (timer1 != RT_NULL)
+		rt_timer_start(timer1);
+	else
+		tc_stat(TC_STAT_END | TC_STAT_FAILED);
+}
+
+#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();
+
+	/* 删除定时器对象 */
+	rt_timer_delete(timer1);
+	timer1 = RT_NULL;
+
+	/* 调度器解锁 */
+	rt_exit_critical();
+
+	/* 设置TestCase状态 */
+	tc_done(TC_STAT_PASSED);
+}
+
+int _tc_timer_stop_self()
+{
+	/* 设置TestCase清理回调函数 */
+	tc_cleanup(_tc_cleanup);
+
+	/* 执行定时器例程 */
+	count = 0;
+	timer_stop_self_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_timer_stop_self, a dynamic timer example);
+#else
+/* 用户应用入口 */
+int rt_application_init()
+{
+	timer_stop_self_init();
+
+	return 0;
+}
+#endif
-- 
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