diff options
| author | bernard.xiong <[email protected]> | 2010-03-20 15:15:54 +0000 |
|---|---|---|
| committer | bernard.xiong <[email protected]> | 2010-03-20 15:15:54 +0000 |
| commit | 911d17912560a274f1faef33a09882406ab5190a (patch) | |
| tree | f330f3b0ba74d701cf8cc913ee231ce0e108b039 /examples/kernel/thread_dynamic_simple.c | |
| parent | dd7cbec8d9f5e405b429dd1e76bd352022d9a0fa (diff) | |
add more thread example and Chinese comments.
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@519 bbd45198-f89e-11dd-88c7-29a3b14d5316
Diffstat (limited to 'examples/kernel/thread_dynamic_simple.c')
| -rw-r--r-- | examples/kernel/thread_dynamic_simple.c | 42 |
1 files changed, 28 insertions, 14 deletions
diff --git a/examples/kernel/thread_dynamic_simple.c b/examples/kernel/thread_dynamic_simple.c index 9f822eefc7..e7f3dfb61b 100644 --- a/examples/kernel/thread_dynamic_simple.c +++ b/examples/kernel/thread_dynamic_simple.c @@ -1,35 +1,45 @@ +/*
+ * 程序清单：动态线程
+ *
+ * 这个程序会初始化2个动态线程，它们拥有共同的入口函数，但参数不相同
+ */
#include <rtthread.h>
#include "tc_comm.h"
-/*
- * This is an example for dynamic thread
- */
-static rt_thread_t tid1 = RT_NULL, tid2 = RT_NULL;
+/* 指向线程控制块的指针 */
+static rt_thread_t tid1 = RT_NULL;
+static rt_thread_t tid2 = RT_NULL;
+/* 线程入口 */
static void thread_entry(void* parameter)
{
rt_uint32_t count = 0;
- rt_uint32_t no = (rt_uint32_t) parameter;
+ rt_uint32_t no = (rt_uint32_t) parameter; /* 获得正确的入口参数 */
while (1)
{
+ /* 打印线程计数值输出 */
rt_kprintf("thread%d count: %d\n", no, count ++);
+
+ /* 休眠10个OS Tick */
rt_thread_delay(10);
}
}
int thread_dynamic_simple_init()
{
- tid1 = rt_thread_create("t1",
- thread_entry, (void*)1,
+ /* 创建线程1 */
+ tid1 = rt_thread_create("thread",
+ thread_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);
- tid2 = rt_thread_create("t2",
- thread_entry, (void*)2,
- THREAD_STACK_SIZE, THREAD_PRIORITY + 1, THREAD_TIMESLICE);
+ /* 创建线程2 */
+ tid2 = rt_thread_create("thread",
+ thread_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
@@ -41,31 +51,35 @@ int thread_dynamic_simple_init() #ifdef RT_USING_TC
static void _tc_cleanup()
{
- /* lock scheduler */
+ /* 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();
- /* delete thread */
+ /* 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);
- /* unlock scheduler */
+ /* 调度器解锁 */
rt_exit_critical();
+ /* 设置TestCase状态 */
tc_done(TC_STAT_PASSED);
}
int _tc_thread_dynamic_simple()
{
- /* set tc cleanup */
+ /* 设置TestCase清理回调函数 */
tc_cleanup(_tc_cleanup);
thread_dynamic_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_thread_dynamic_simple, a dynamic thread example);
#else
+/* 用户应用入口 */
int rt_application_init()
{
thread_dynamic_simple_init();
|