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_detach.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_detach.c')
| -rw-r--r-- | examples/kernel/thread_detach.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/examples/kernel/thread_detach.c b/examples/kernel/thread_detach.c new file mode 100644 index 0000000000..2cb8227df5 --- /dev/null +++ b/examples/kernel/thread_detach.c @@ -0,0 +1,118 @@ +/*
+ * 程序清单：线程脱离
+ *
+ * 这个例子会创建两个线程，在其中一个线程中执行对另一个线程的脱离。
+ */
+#include <rtthread.h>
+#include "tc_comm.h"
+
+/* 线程1控制块 */
+static struct rt_thread thread1;
+/* 线程1栈 */
+static rt_uint8_t thread1_stack[THREAD_STACK_SIZE];
+/* 线程2控制块 */
+static struct rt_thread thread2;
+/* 线程2栈 */
+static rt_uint8_t thread2_stack[THREAD_STACK_SIZE];
+
+/* 线程1入口 */
+static void thread1_entry(void* parameter)
+{
+ rt_uint32_t count = 0;
+
+ while (1)
+ {
+ /* 线程1采用低优先级运行，一直打印计数值 */
+ rt_kprintf("thread count: %d\n", count ++);
+ }
+}
+
+/* 线程2入口 */
+static void thread2_entry(void* parameter)
+{
+ /* 线程2拥有较高的优先级，以抢占线程1而获得执行 */
+
+ /* 线程2启动后先睡眠10个OS Tick */
+ rt_thread_delay(10);
+
+ /*
+ * 线程2唤醒后直接执行线程1脱离，线程1将从就绪线程队列中删除
+ */
+ rt_thread_detach(&thread1);
+
+ /*
+ * 线程2继续休眠10个OS Tick然后退出
+ */
+ rt_thread_delay(10);
+
+ /*
+ * 线程2运行结束后也将自动被从就绪队列中删除，并脱离线程队列
+ */
+}
+
+int thread_detach_init()
+{
+ rt_err_t result;
+
+ /* 初始化线程1 */
+ result = rt_thread_init(&thread1, "t1", /* 线程名：t1 */
+ thread1_entry, RT_NULL, /* 线程的入口是thread1_entry，入口参数是RT_NULL*/
+ &thread1_stack[0], sizeof(thread1_stack), /* 线程栈是thread1_stack */
+ THREAD_PRIORITY, 10);
+ if (result == RT_EOK) /* 如果返回正确，启动线程1 */
+ rt_thread_startup(&thread1);
+ else
+ tc_stat(TC_STAT_END | TC_STAT_FAILED);
+
+ /* 初始化线程2 */
+ result = rt_thread_init(&thread2, "t2", /* 线程名：t2 */
+ thread2_entry, RT_NULL, /* 线程的入口是thread2_entry，入口参数是RT_NULL*/
+ &thread2_stack[0], sizeof(thread2_stack), /* 线程栈是thread2_stack */
+ THREAD_PRIORITY - 1, 10);
+ if (result == RT_EOK) /* 如果返回正确，启动线程2 */
+ rt_thread_startup(&thread2);
+ 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();
+
+ /* 执行线程脱离 */
+ if (thread1.stat != RT_THREAD_CLOSE)
+ rt_thread_detach(&thread1);
+ if (thread2.stat != RT_THREAD_CLOSE)
+ rt_thread_detach(&thread2);
+
+ /* 调度器解锁 */
+ rt_exit_critical();
+
+ /* 设置TestCase状态 */
+ tc_done(TC_STAT_PASSED);
+}
+
+int _tc_thread_detach()
+{
+ /* 设置TestCase清理回调函数 */
+ tc_cleanup(_tc_cleanup);
+ thread_detach_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_detach, a static thread example);
+#else
+/* 用户应用入口 */
+int rt_application_init()
+{
+ thread_detach_init();
+
+ return 0;
+}
+#endif
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