152 lines
3.6 KiB
C
152 lines
3.6 KiB
C
/*
|
||
* Copyright (c) 2006-2021, RT-Thread Development Team
|
||
*
|
||
* SPDX-License-Identifier: Apache-2.0
|
||
*
|
||
* Change Logs:
|
||
*
|
||
*/
|
||
|
||
/*
|
||
* 程序清单：删除线程
|
||
*
|
||
* 这个例子会创建两个线程，在一个线程中删除另外一个线程。
|
||
*/
|
||
#include <rtthread.h>
|
||
#include "tc_comm.h"
|
||
|
||
/*
|
||
* 线程删除(rt_thread_delete)函数仅适合于动态线程，为了在一个线程
|
||
* 中访问另一个线程的控制块，所以把线程块指针声明成全局类型以供全
|
||
* 局访问
|
||
*/
|
||
static rt_thread_t tid1 = RT_NULL, tid2 = RT_NULL;
|
||
/* 线程1的入口函数 */
|
||
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 ++);
|
||
count ++;
|
||
}
|
||
}
|
||
static void thread1_cleanup(struct rt_thread *tid)
|
||
{
|
||
if (tid != tid1)
|
||
{
|
||
tc_stat(TC_STAT_END | TC_STAT_FAILED);
|
||
return ;
|
||
}
|
||
rt_kprintf("thread1 end\n");
|
||
tid1 = RT_NULL;
|
||
}
|
||
|
||
/* 线程2的入口函数 */
|
||
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(RT_TICK_PER_SECOND);
|
||
|
||
/*
|
||
* 线程2唤醒后直接删除线程1，删除线程1后，线程1自动脱离就绪线程
|
||
* 队列
|
||
*/
|
||
rt_thread_delete(tid1);
|
||
|
||
/*
|
||
* 线程2继续休眠10个OS Tick然后退出，线程2休眠后应切换到idle线程
|
||
* idle线程将执行真正的线程1控制块和线程栈的删除
|
||
*/
|
||
rt_thread_delay(RT_TICK_PER_SECOND);
|
||
}
|
||
|
||
static void thread2_cleanup(struct rt_thread *tid)
|
||
{
|
||
/*
|
||
* 线程2运行结束后也将自动被删除(线程控制块和线程栈在idle线
|
||
* 程中释放)
|
||
*/
|
||
|
||
if (tid != tid2)
|
||
{
|
||
tc_stat(TC_STAT_END | TC_STAT_FAILED);
|
||
return ;
|
||
}
|
||
rt_kprintf("thread2 end\n");
|
||
tid2 = RT_NULL;
|
||
tc_done(TC_STAT_PASSED);
|
||
}
|
||
|
||
/* 线程删除示例的初始化 */
|
||
int thread_delete_init()
|
||
{
|
||
/* 创建线程1 */
|
||
tid1 = rt_thread_create("t1", /* 线程1的名称是t1 */
|
||
thread1_entry, RT_NULL, /* 入口是thread1_entry，参数是RT_NULL */
|
||
THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE);
|
||
if (tid1 != RT_NULL) /* 如果获得线程控制块，启动这个线程 */
|
||
{
|
||
tid1->cleanup = thread1_cleanup;
|
||
rt_thread_startup(tid1);
|
||
}
|
||
else
|
||
tc_stat(TC_STAT_END | TC_STAT_FAILED);
|
||
|
||
/* 创建线程1 */
|
||
tid2 = rt_thread_create("t2", /* 线程1的名称是t2 */
|
||
thread2_entry, RT_NULL, /* 入口是thread2_entry，参数是RT_NULL */
|
||
THREAD_STACK_SIZE, THREAD_PRIORITY - 1, THREAD_TIMESLICE);
|
||
if (tid2 != RT_NULL) /* 如果获得线程控制块，启动这个线程 */
|
||
{
|
||
tid2->cleanup = thread2_cleanup;
|
||
rt_thread_startup(tid2);
|
||
}
|
||
else
|
||
tc_stat(TC_STAT_END | TC_STAT_FAILED);
|
||
|
||
return 10 * RT_TICK_PER_SECOND;
|
||
}
|
||
|
||
#ifdef RT_USING_TC
|
||
static void _tc_cleanup()
|
||
{
|
||
/* lock scheduler */
|
||
rt_enter_critical();
|
||
|
||
/* delete thread */
|
||
if (tid1 != RT_NULL)
|
||
{
|
||
rt_kprintf("tid1 is %p, should be NULL\n", tid1);
|
||
tc_stat(TC_STAT_FAILED);
|
||
}
|
||
if (tid2 != RT_NULL)
|
||
{
|
||
rt_kprintf("tid2 is %p, should be NULL\n", tid2);
|
||
tc_stat(TC_STAT_FAILED);
|
||
}
|
||
|
||
/* unlock scheduler */
|
||
rt_exit_critical();
|
||
}
|
||
|
||
int _tc_thread_delete()
|
||
{
|
||
/* set tc cleanup */
|
||
tc_cleanup(_tc_cleanup);
|
||
return thread_delete_init();
|
||
}
|
||
FINSH_FUNCTION_EXPORT(_tc_thread_delete, a thread delete example);
|
||
#else
|
||
int rt_application_init()
|
||
{
|
||
thread_delete_init();
|
||
|
||
return 0;
|
||
}
|
||
#endif
|