1 /*
2 * 程序清单：
3 */
4 #include <rtthread.h>
5 #include "tc_comm.h"
6
7 /* 指向线程控制块的指针 */
8 static rt_thread_t tid1 = RT_NULL;
9 static rt_thread_t tid2 = RT_NULL;
10 /* 线程1入口 */
thread1_entry(void * parameter)11 static void thread1_entry(void* parameter)
12 {
13 rt_uint32_t count = 0;
14
15 while (1)
16 {
17 /* 打印线程1的输出 */
18 rt_kprintf("thread1: count = %d\n", count ++);
19
20 /* 执行yield后应该切换到thread2执行 */
21 rt_thread_yield();
22 }
23 }
24
25 /* 线程2入口 */
thread2_entry(void * parameter)26 static void thread2_entry(void* parameter)
27 {
28 rt_uint32_t count = 0;
29
30 while (1)
31 {
32 /* 打印线程2的输出 */
33 rt_kprintf("thread2: count = %d\n", count ++);
34
35 /* 执行yield后应该切换到thread1执行 */
36 rt_thread_yield();
37 }
38 }
39
thread_yield_init()40 int thread_yield_init()
41 {
42 /* 创建线程1 */
43 tid1 = rt_thread_create("thread",
44 thread1_entry, RT_NULL, /* 线程入口是thread1_entry, 入口参数是RT_NULL */
45 THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE);
46 if (tid1 != RT_NULL)
47 rt_thread_startup(tid1);
48 else
49 tc_stat(TC_STAT_END | TC_STAT_FAILED);
50
51 /* 创建线程2 */
52 tid2 = rt_thread_create("thread",
53 thread2_entry, RT_NULL, /* 线程入口是thread2_entry, 入口参数是RT_NULL */
54 THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE);
55 if (tid2 != RT_NULL)
56 rt_thread_startup(tid2);
57 else
58 tc_stat(TC_STAT_END | TC_STAT_FAILED);
59
60 return 0;
61 }
62
63 #ifdef RT_USING_TC
_tc_cleanup()64 static void _tc_cleanup()
65 {
66 /* 调度器上锁，上锁后，将不再切换到其他线程，仅响应中断 */
67 rt_enter_critical();
68
69 /* 删除线程 */
70 if (tid1 != RT_NULL && tid1->stat != RT_THREAD_CLOSE)
71 rt_thread_delete(tid1);
72 if (tid2 != RT_NULL && tid2->stat != RT_THREAD_CLOSE)
73 rt_thread_delete(tid2);
74
75 /* 调度器解锁 */
76 rt_exit_critical();
77
78 /* 设置TestCase状态 */
79 tc_done(TC_STAT_PASSED);
80 }
81
_tc_thread_yield()82 int _tc_thread_yield()
83 {
84 /* 设置TestCase清理回调函数 */
85 tc_cleanup(_tc_cleanup);
86 thread_yield_init();
87
88 /* 返回TestCase运行的最长时间 */
89 return 30;
90 }
91 /* 输出函数命令到finsh shell中 */
92 FINSH_FUNCTION_EXPORT(_tc_thread_yield, a thread yield example);
93 #else
94 /* 用户应用入口 */
rt_application_init()95 int rt_application_init()
96 {
97 thread_yield_init();
98
99 return 0;
100 }
101 #endif
102