2010-03-20 23:15:54 +08:00
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/*
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* 程序清单：挂起线程
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*
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* 这个例子中将创建两个动态线程，高优先级线程将在一定时刻后挂起低优先级线程。
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*/
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#include <rtthread.h>
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#include "tc_comm.h"
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/* 指向线程控制块的指针 */
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static rt_thread_t tid1 = RT_NULL;
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static rt_thread_t tid2 = RT_NULL;
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/* 线程1入口 */
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static void thread1_entry(void* parameter)
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{
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rt_uint32_t count = 0;
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while (1)
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{
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/* 线程1采用低优先级运行，一直打印计数值 */
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rt_kprintf("thread count: %d\n", count ++);
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}
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}
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/* 线程2入口 */
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static void thread2_entry(void* parameter)
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{
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/* 延时10个OS Tick */
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rt_thread_delay(10);
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/* 挂起线程1 */
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rt_thread_suspend(tid1);
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/* 延时10个OS Tick */
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rt_thread_delay(10);
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/* 线程2自动退出 */
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2011-12-19 15:08:06 +08:00
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tid2 = RT_NULL;
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2010-03-20 23:15:54 +08:00
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}
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int thread_suspend_init()
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{
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/* 创建线程1 */
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tid1 = rt_thread_create("thread",
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thread1_entry, RT_NULL, /* 线程入口是thread1_entry, 入口参数是RT_NULL */
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THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE);
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if (tid1 != RT_NULL)
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rt_thread_startup(tid1);
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else
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tc_stat(TC_STAT_END | TC_STAT_FAILED);
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/* 创建线程2 */
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tid2 = rt_thread_create("thread",
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thread2_entry, RT_NULL, /* 线程入口是thread2_entry, 入口参数是RT_NULL */
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THREAD_STACK_SIZE, THREAD_PRIORITY - 1, THREAD_TIMESLICE);
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if (tid2 != RT_NULL)
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rt_thread_startup(tid2);
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else
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tc_stat(TC_STAT_END | TC_STAT_FAILED);
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return 0;
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}
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#ifdef RT_USING_TC
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static void _tc_cleanup()
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{
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/* 调度器上锁，上锁后，将不再切换到其他线程，仅响应中断 */
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rt_enter_critical();
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/* 删除线程 */
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if (tid1 != RT_NULL && tid1->stat != RT_THREAD_CLOSE)
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rt_thread_delete(tid1);
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if (tid2 != RT_NULL && tid2->stat != RT_THREAD_CLOSE)
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rt_thread_delete(tid2);
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/* 调度器解锁 */
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rt_exit_critical();
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/* 设置TestCase状态 */
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tc_done(TC_STAT_PASSED);
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}
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int _tc_thread_suspend()
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{
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/* 设置TestCase清理回调函数 */
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tc_cleanup(_tc_cleanup);
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thread_suspend_init();
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/* 返回TestCase运行的最长时间 */
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return 100;
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}
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/* 输出函数命令到finsh shell中 */
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FINSH_FUNCTION_EXPORT(_tc_thread_suspend, a thread suspend example);
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#else
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/* 用户应用入口 */
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int rt_application_init()
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{
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thread_suspend_init();
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return 0;
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}
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#endif
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