player/Project/Src/rt-thread/examples/kernel/mutex_simple.c

/*
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>嵥<EFBFBD><EFBFBD>
 */
#include <rtthread.h>
#include "tc_comm.h"

/* ָ<><D6B8><EFBFBD>߳̿<DFB3><CCBF>ƿ<EFBFBD><C6BF><EFBFBD>ָ<EFBFBD><D6B8> */
static rt_thread_t tid1 = RT_NULL;
static rt_thread_t tid2 = RT_NULL;
static rt_thread_t tid3 = RT_NULL;
static rt_mutex_t mutex = RT_NULL;

/* <20>߳<EFBFBD>1<EFBFBD><31><EFBFBD><EFBFBD> */
static void thread1_entry(void* parameter)
{
    /* <20><><EFBFBD>õ<EFBFBD><C3B5><EFBFBD><EFBFBD>ȼ<EFBFBD><C8BC>߳<EFBFBD><DFB3><EFBFBD><EFBFBD><EFBFBD> */
    rt_thread_delay(10);

    /* <20><>ʱthread3<64><33><EFBFBD><EFBFBD>mutex<65><78><EFBFBD><EFBFBD><EFBFBD><EFBFBD>thread2<64>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD><EFBFBD>mutex */

    /* <20><><EFBFBD><EFBFBD>thread2<64><32>thread3<64><33><EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD><C8BC><EFBFBD><EFBFBD><EFBFBD> */
    if (tid2->current_priority != tid3->current_priority)
    {
        /* <20><><EFBFBD>ȼ<EFBFBD><C8BC><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD><CAA7> */
        tc_stat(TC_STAT_END | TC_STAT_FAILED);
        return;
    }
}

/* <20>߳<EFBFBD>2<EFBFBD><32><EFBFBD><EFBFBD> */
static void thread2_entry(void* parameter)
{
    rt_err_t result;

    /* <20><><EFBFBD>õ<EFBFBD><C3B5><EFBFBD><EFBFBD>ȼ<EFBFBD><C8BC>߳<EFBFBD><DFB3><EFBFBD><EFBFBD><EFBFBD> */
    rt_thread_delay(5);

    while (1)
    {
        /*
         * <EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱthread3<EFBFBD><EFBFBD><EFBFBD>У<EFBFBD>Ӧ<EFBFBD><EFBFBD>thread3<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>thread2<EFBFBD><EFBFBD>ͬ
         * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD>
         */
        result = rt_mutex_take(mutex, RT_WAITING_FOREVER);

        if (result == RT_EOK)
        {
            /* <20>ͷŻ<CDB7><C5BB><EFBFBD><EFBFBD><EFBFBD> */
            rt_mutex_release(mutex);
        }
    }
}

/* <20>߳<EFBFBD>3<EFBFBD><33><EFBFBD><EFBFBD> */
static void thread3_entry(void* parameter)
{
    rt_tick_t tick;
    rt_err_t result;

    while (1)
    {
        result = rt_mutex_take(mutex, RT_WAITING_FOREVER);
        if (result != RT_EOK)
        {
            tc_stat(TC_STAT_END | TC_STAT_FAILED);
        }
        result = rt_mutex_take(mutex, RT_WAITING_FOREVER);
        if (result != RT_EOK)
        {
            tc_stat(TC_STAT_END | TC_STAT_FAILED);
        }

        /* <20><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>ѭ<EFBFBD><D1AD><EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD>50<35><30>OS Tick */
        tick = rt_tick_get();
        while (rt_tick_get() - tick < 50) ;

        rt_mutex_release(mutex);
        rt_mutex_release(mutex);
    }
}

int mutex_simple_init()
{
    /* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
    mutex = rt_mutex_create("mutex", RT_IPC_FLAG_FIFO);
    if (mutex == RT_NULL)
    {
        tc_stat(TC_STAT_END | TC_STAT_FAILED);
        return 0;
    }

    /* <20><><EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD>1 */
    tid1 = rt_thread_create("t1",
                            thread1_entry, RT_NULL, /* <20>߳<EFBFBD><DFB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>thread1_entry, <20><><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>RT_NULL */
                            THREAD_STACK_SIZE, THREAD_PRIORITY - 1, THREAD_TIMESLICE);
    if (tid1 != RT_NULL)
        rt_thread_startup(tid1);
    else
        tc_stat(TC_STAT_END | TC_STAT_FAILED);

    /* <20><><EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD>2 */
    tid2 = rt_thread_create("t2",
                            thread2_entry, RT_NULL, /* <20>߳<EFBFBD><DFB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>thread2_entry, <20><><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>RT_NULL */
                            THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE);
    if (tid2 != RT_NULL)
        rt_thread_startup(tid2);
    else
        tc_stat(TC_STAT_END | TC_STAT_FAILED);

    /* <20><><EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD>3 */
    tid3 = rt_thread_create("t3",
                            thread3_entry, RT_NULL, /* <20>߳<EFBFBD><DFB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>thread3_entry, <20><><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>RT_NULL */
                            THREAD_STACK_SIZE, THREAD_PRIORITY + 1, THREAD_TIMESLICE);
    if (tid3 != RT_NULL)
        rt_thread_startup(tid3);
    else
        tc_stat(TC_STAT_END | TC_STAT_FAILED);

    return 0;
}

#ifdef RT_USING_TC
static void _tc_cleanup()
{
    /* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>󣬽<EFBFBD><F3A3ACBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><D0BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̣߳<DFB3><CCA3><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ж<EFBFBD> */
    rt_enter_critical();

    /* ɾ<><C9BE><EFBFBD>߳<EFBFBD> */
    if (tid1 != RT_NULL && tid1->stat != RT_THREAD_CLOSE)
        rt_thread_delete(tid1);
    if (tid2 != RT_NULL && tid2->stat != RT_THREAD_CLOSE)
        rt_thread_delete(tid2);
    if (tid3 != RT_NULL && tid3->stat != RT_THREAD_CLOSE)
        rt_thread_delete(tid3);

    if (mutex != RT_NULL)
    {
        rt_mutex_delete(mutex);
    }

    /* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
    rt_exit_critical();

    /* <20><><EFBFBD><EFBFBD>TestCase״̬ */
    tc_done(TC_STAT_PASSED);
}

int _tc_mutex_simple()
{
    /* <20><><EFBFBD><EFBFBD>TestCase<73><65><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD><D8B5><EFBFBD><EFBFBD><EFBFBD> */
    tc_cleanup(_tc_cleanup);
    mutex_simple_init();

    /* <20><><EFBFBD><EFBFBD>TestCase<73><65><EFBFBD>е<EFBFBD><D0B5>ʱ<EEB3A4><CAB1> */
    return 100;
}
/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>finsh shell<6C><6C> */
FINSH_FUNCTION_EXPORT(_tc_mutex_simple, sime mutex example);
#else
/* <20>û<EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
int rt_application_init()
{
    mutex_simple_init();

    return 0;
}
#endif