1*10465441SEvalZero /*
2*10465441SEvalZero * 程序清单：
3*10465441SEvalZero */
4*10465441SEvalZero #include <rtthread.h>
5*10465441SEvalZero #include "tc_comm.h"
6*10465441SEvalZero
7*10465441SEvalZero /* 指向线程控制块的指针 */
8*10465441SEvalZero static rt_thread_t tid1 = RT_NULL;
9*10465441SEvalZero static rt_thread_t tid2 = RT_NULL;
10*10465441SEvalZero /* 线程1入口 */
thread1_entry(void * parameter)11*10465441SEvalZero static void thread1_entry(void* parameter)
12*10465441SEvalZero {
13*10465441SEvalZero rt_uint32_t count = 0;
14*10465441SEvalZero
15*10465441SEvalZero while (1)
16*10465441SEvalZero {
17*10465441SEvalZero /* 打印线程1的输出 */
18*10465441SEvalZero rt_kprintf("thread1: count = %d\n", count ++);
19*10465441SEvalZero
20*10465441SEvalZero /* 执行yield后应该切换到thread2执行 */
21*10465441SEvalZero rt_thread_yield();
22*10465441SEvalZero }
23*10465441SEvalZero }
24*10465441SEvalZero
25*10465441SEvalZero /* 线程2入口 */
thread2_entry(void * parameter)26*10465441SEvalZero static void thread2_entry(void* parameter)
27*10465441SEvalZero {
28*10465441SEvalZero rt_uint32_t count = 0;
29*10465441SEvalZero
30*10465441SEvalZero while (1)
31*10465441SEvalZero {
32*10465441SEvalZero /* 打印线程2的输出 */
33*10465441SEvalZero rt_kprintf("thread2: count = %d\n", count ++);
34*10465441SEvalZero
35*10465441SEvalZero /* 执行yield后应该切换到thread1执行 */
36*10465441SEvalZero rt_thread_yield();
37*10465441SEvalZero }
38*10465441SEvalZero }
39*10465441SEvalZero
thread_yield_init()40*10465441SEvalZero int thread_yield_init()
41*10465441SEvalZero {
42*10465441SEvalZero /* 创建线程1 */
43*10465441SEvalZero tid1 = rt_thread_create("thread",
44*10465441SEvalZero thread1_entry, RT_NULL, /* 线程入口是thread1_entry, 入口参数是RT_NULL */
45*10465441SEvalZero THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE);
46*10465441SEvalZero if (tid1 != RT_NULL)
47*10465441SEvalZero rt_thread_startup(tid1);
48*10465441SEvalZero else
49*10465441SEvalZero tc_stat(TC_STAT_END | TC_STAT_FAILED);
50*10465441SEvalZero
51*10465441SEvalZero /* 创建线程2 */
52*10465441SEvalZero tid2 = rt_thread_create("thread",
53*10465441SEvalZero thread2_entry, RT_NULL, /* 线程入口是thread2_entry, 入口参数是RT_NULL */
54*10465441SEvalZero THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE);
55*10465441SEvalZero if (tid2 != RT_NULL)
56*10465441SEvalZero rt_thread_startup(tid2);
57*10465441SEvalZero else
58*10465441SEvalZero tc_stat(TC_STAT_END | TC_STAT_FAILED);
59*10465441SEvalZero
60*10465441SEvalZero return 0;
61*10465441SEvalZero }
62*10465441SEvalZero
63*10465441SEvalZero #ifdef RT_USING_TC
_tc_cleanup()64*10465441SEvalZero static void _tc_cleanup()
65*10465441SEvalZero {
66*10465441SEvalZero /* 调度器上锁，上锁后，将不再切换到其他线程，仅响应中断 */
67*10465441SEvalZero rt_enter_critical();
68*10465441SEvalZero
69*10465441SEvalZero /* 删除线程 */
70*10465441SEvalZero if (tid1 != RT_NULL && tid1->stat != RT_THREAD_CLOSE)
71*10465441SEvalZero rt_thread_delete(tid1);
72*10465441SEvalZero if (tid2 != RT_NULL && tid2->stat != RT_THREAD_CLOSE)
73*10465441SEvalZero rt_thread_delete(tid2);
74*10465441SEvalZero
75*10465441SEvalZero /* 调度器解锁 */
76*10465441SEvalZero rt_exit_critical();
77*10465441SEvalZero
78*10465441SEvalZero /* 设置TestCase状态 */
79*10465441SEvalZero tc_done(TC_STAT_PASSED);
80*10465441SEvalZero }
81*10465441SEvalZero
_tc_thread_yield()82*10465441SEvalZero int _tc_thread_yield()
83*10465441SEvalZero {
84*10465441SEvalZero /* 设置TestCase清理回调函数 */
85*10465441SEvalZero tc_cleanup(_tc_cleanup);
86*10465441SEvalZero thread_yield_init();
87*10465441SEvalZero
88*10465441SEvalZero /* 返回TestCase运行的最长时间 */
89*10465441SEvalZero return 30;
90*10465441SEvalZero }
91*10465441SEvalZero /* 输出函数命令到finsh shell中 */
92*10465441SEvalZero FINSH_FUNCTION_EXPORT(_tc_thread_yield, a thread yield example);
93*10465441SEvalZero #else
94*10465441SEvalZero /* 用户应用入口 */
rt_application_init()95*10465441SEvalZero int rt_application_init()
96*10465441SEvalZero {
97*10465441SEvalZero thread_yield_init();
98*10465441SEvalZero
99*10465441SEvalZero return 0;
100*10465441SEvalZero }
101*10465441SEvalZero #endif
102