1*10465441SEvalZero /*
2*10465441SEvalZero * 程序清单：线程脱离
3*10465441SEvalZero *
4*10465441SEvalZero * 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。
5*10465441SEvalZero */
6*10465441SEvalZero #include <rtthread.h>
7*10465441SEvalZero #include "tc_comm.h"
8*10465441SEvalZero
9*10465441SEvalZero /* 线程1控制块 */
10*10465441SEvalZero static struct rt_thread thread1;
11*10465441SEvalZero /* 线程1栈 */
12*10465441SEvalZero static rt_uint8_t thread1_stack[THREAD_STACK_SIZE];
13*10465441SEvalZero /* 线程2控制块 */
14*10465441SEvalZero static struct rt_thread thread2;
15*10465441SEvalZero /* 线程2栈 */
16*10465441SEvalZero static rt_uint8_t thread2_stack[THREAD_STACK_SIZE];
17*10465441SEvalZero
18*10465441SEvalZero /* 线程1入口 */
thread1_entry(void * parameter)19*10465441SEvalZero static void thread1_entry(void* parameter)
20*10465441SEvalZero {
21*10465441SEvalZero rt_uint32_t count = 0;
22*10465441SEvalZero
23*10465441SEvalZero while (1)
24*10465441SEvalZero {
25*10465441SEvalZero /* 线程1采用低优先级运行，一直打印计数值 */
26*10465441SEvalZero rt_kprintf("thread count: %d\n", count ++);
27*10465441SEvalZero }
28*10465441SEvalZero }
29*10465441SEvalZero
30*10465441SEvalZero /* 线程2入口 */
thread2_entry(void * parameter)31*10465441SEvalZero static void thread2_entry(void* parameter)
32*10465441SEvalZero {
33*10465441SEvalZero /* 线程2拥有较高的优先级，以抢占线程1而获得执行 */
34*10465441SEvalZero
35*10465441SEvalZero /* 线程2启动后先睡眠10个OS Tick */
36*10465441SEvalZero rt_thread_delay(10);
37*10465441SEvalZero
38*10465441SEvalZero /*
39*10465441SEvalZero * 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
40*10465441SEvalZero */
41*10465441SEvalZero rt_thread_detach(&thread1);
42*10465441SEvalZero
43*10465441SEvalZero /*
44*10465441SEvalZero * 线程2继续休眠10个OS Tick然后退出
45*10465441SEvalZero */
46*10465441SEvalZero rt_thread_delay(10);
47*10465441SEvalZero
48*10465441SEvalZero /*
49*10465441SEvalZero * 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
50*10465441SEvalZero */
51*10465441SEvalZero }
52*10465441SEvalZero
thread_detach_init()53*10465441SEvalZero int thread_detach_init()
54*10465441SEvalZero {
55*10465441SEvalZero rt_err_t result;
56*10465441SEvalZero
57*10465441SEvalZero /* 初始化线程1 */
58*10465441SEvalZero result = rt_thread_init(&thread1, "t1", /* 线程名：t1 */
59*10465441SEvalZero thread1_entry, RT_NULL, /* 线程的入口是thread1_entry，入口参数是RT_NULL*/
60*10465441SEvalZero &thread1_stack[0], sizeof(thread1_stack), /* 线程栈是thread1_stack */
61*10465441SEvalZero THREAD_PRIORITY, 10);
62*10465441SEvalZero if (result == RT_EOK) /* 如果返回正确，启动线程1 */
63*10465441SEvalZero rt_thread_startup(&thread1);
64*10465441SEvalZero else
65*10465441SEvalZero tc_stat(TC_STAT_END | TC_STAT_FAILED);
66*10465441SEvalZero
67*10465441SEvalZero /* 初始化线程2 */
68*10465441SEvalZero result = rt_thread_init(&thread2, "t2", /* 线程名：t2 */
69*10465441SEvalZero thread2_entry, RT_NULL, /* 线程的入口是thread2_entry，入口参数是RT_NULL*/
70*10465441SEvalZero &thread2_stack[0], sizeof(thread2_stack), /* 线程栈是thread2_stack */
71*10465441SEvalZero THREAD_PRIORITY - 1, 10);
72*10465441SEvalZero if (result == RT_EOK) /* 如果返回正确，启动线程2 */
73*10465441SEvalZero rt_thread_startup(&thread2);
74*10465441SEvalZero else
75*10465441SEvalZero tc_stat(TC_STAT_END | TC_STAT_FAILED);
76*10465441SEvalZero
77*10465441SEvalZero return 0;
78*10465441SEvalZero }
79*10465441SEvalZero
80*10465441SEvalZero #ifdef RT_USING_TC
_tc_cleanup()81*10465441SEvalZero static void _tc_cleanup()
82*10465441SEvalZero {
83*10465441SEvalZero /* 调度器上锁，上锁后，将不再切换到其他线程，仅响应中断 */
84*10465441SEvalZero rt_enter_critical();
85*10465441SEvalZero
86*10465441SEvalZero /* 执行线程脱离 */
87*10465441SEvalZero if (thread1.stat != RT_THREAD_CLOSE)
88*10465441SEvalZero rt_thread_detach(&thread1);
89*10465441SEvalZero if (thread2.stat != RT_THREAD_CLOSE)
90*10465441SEvalZero rt_thread_detach(&thread2);
91*10465441SEvalZero
92*10465441SEvalZero /* 调度器解锁 */
93*10465441SEvalZero rt_exit_critical();
94*10465441SEvalZero
95*10465441SEvalZero /* 设置TestCase状态 */
96*10465441SEvalZero tc_done(TC_STAT_PASSED);
97*10465441SEvalZero }
98*10465441SEvalZero
_tc_thread_detach()99*10465441SEvalZero int _tc_thread_detach()
100*10465441SEvalZero {
101*10465441SEvalZero /* 设置TestCase清理回调函数 */
102*10465441SEvalZero tc_cleanup(_tc_cleanup);
103*10465441SEvalZero thread_detach_init();
104*10465441SEvalZero
105*10465441SEvalZero /* 返回TestCase运行的最长时间 */
106*10465441SEvalZero return 25;
107*10465441SEvalZero }
108*10465441SEvalZero /* 输出函数命令到finsh shell中 */
109*10465441SEvalZero FINSH_FUNCTION_EXPORT(_tc_thread_detach, a static thread example);
110*10465441SEvalZero #else
111*10465441SEvalZero /* 用户应用入口 */
rt_application_init()112*10465441SEvalZero int rt_application_init()
113*10465441SEvalZero {
114*10465441SEvalZero thread_detach_init();
115*10465441SEvalZero
116*10465441SEvalZero return 0;
117*10465441SEvalZero }
118*10465441SEvalZero #endif
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