add heap and semaphore examples.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@501 bbd45198-f89e-11dd-88c7-29a3b14d5316

examples/kernel/semaphore_dynamic.c

@@ -0,0 +1,86 @@
+#include <rtthread.h>
+#include "tc_comm.h"
+
+static rt_sem_t sem;
+static void thread_entry(void* parameter)
+{
+	rt_err_t result;
+	rt_tick_t tick;
+
+	/* get current tick */
+	tick = rt_tick_get();
+
+	/* take a semaphore for 10 OS Tick */
+	result = rt_sem_take(sem, 10);
+	if (result == -RT_ETIMEOUT)
+	{
+		if (rt_tick_get() - tick != 10)
+		{
+			tc_done(TC_STAT_FAILED);
+			rt_sem_delete(sem);
+			return;
+		}
+		rt_kprintf("take semaphore timeout");
+	}
+	else
+	{
+		tc_done(TC_STAT_FAILED);
+		rt_sem_delete(sem);
+		return;
+	}
+
+	/* release semaphore one time */
+	rt_sem_release(sem);
+
+	result = rt_sem_take(sem, RT_WAITING_FOREVER);
+	if (result != RT_EOK)
+	{
+		tc_done(TC_STAT_FAILED);
+		rt_sem_delete(sem);
+		return;
+	}
+
+	/* testcase passed */
+	tc_done(TC_STAT_PASSED);
+	/* delete semaphore */
+	rt_sem_delete(sem);
+}
+
+int semaphore_dynamic_init()
+{
+	rt_thread_t tid;
+
+	sem = rt_sem_create("sem", 0, RT_IPC_FLAG_FIFO);
+	if (sem == RT_NULL)
+	{
+		tc_stat(TC_STAT_END | TC_STAT_FAILED);
+		return 0;
+	}
+
+	tid = rt_thread_create("test",
+		thread_entry, RT_NULL,
+		THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE);
+	if (tid != RT_NULL)
+		rt_thread_startup(tid);
+	else
+		tc_stat(TC_STAT_END | TC_STAT_FAILED);
+
+	return 0;
+}
+
+#ifdef RT_USING_TC
+int _tc_semaphore_dynamic()
+{
+	semaphore_dynamic_init();
+
+	return 30;
+}
+FINSH_FUNCTION_EXPORT(_tc_semaphore_dynamic, a dynamic semaphore test);
+#else
+int rt_application_init()
+{
+	semaphore_dynamic_init();
+
+	return 0;
+}
+#endif