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

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

/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>5<EFBFBD><35>Ԫ<EFBFBD><D4AA><EFBFBD>ܹ<EFBFBD><DCB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
#define MAXSEM 5

/* <20><><EFBFBD>ڷ<EFBFBD><DAB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
rt_uint32_t array[MAXSEM];
/* ָ<><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߡ<EFBFBD><DFA1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>array<61><79><EFBFBD><EFBFBD><EFBFBD>еĶ<D0B5>дλ<D0B4><CEBB> */
static rt_uint32_t set, get;

/* ָ<><D6B8><EFBFBD>߳̿<DFB3><CCBF>ƿ<EFBFBD><C6BF><EFBFBD>ָ<EFBFBD><D6B8> */
static rt_thread_t producer_tid = RT_NULL;
static rt_thread_t consumer_tid = RT_NULL;

struct rt_semaphore sem_lock;
struct rt_semaphore sem_empty, sem_full;

/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD><DFB3><EFBFBD><EFBFBD><EFBFBD> */
void producer_thread_entry(void* parameter)
{
    int cnt = 0;

    /* <20><><EFBFBD><EFBFBD>100<30><30> */
    while( cnt < 100)
    {
        /* <20><>ȡһ<C8A1><D2BB><EFBFBD><EFBFBD>λ */
        rt_sem_take(&sem_empty, RT_WAITING_FOREVER);

        /* <20>޸<EFBFBD>array<61><79><EFBFBD>ݣ<EFBFBD><DDA3><EFBFBD><EFBFBD><EFBFBD> */
        rt_sem_take(&sem_lock, RT_WAITING_FOREVER);
        array[set%MAXSEM] = cnt + 1;
        rt_kprintf("the producer generates a number: %d\n", array[set%MAXSEM]);
        set++;
        rt_sem_release(&sem_lock);

        /* <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>λ */
        rt_sem_release(&sem_full);
        cnt++;

        /* <20><>ͣһ<CDA3><D2BB>ʱ<EFBFBD><CAB1> */
        rt_thread_delay(50);
    }

    rt_kprintf("the producer exit!\n");
}

/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD><DFB3><EFBFBD><EFBFBD><EFBFBD> */
void consumer_thread_entry(void* parameter)
{
    rt_uint32_t no;
    rt_uint32_t sum;

    /* <20><>n<EFBFBD><6E><EFBFBD>̣߳<DFB3><CCA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
    no = (rt_uint32_t)parameter;

    sum = 0;
    while(1)
    {
        /* <20><>ȡһ<C8A1><D2BB><EFBFBD><EFBFBD>λ */
        rt_sem_take(&sem_full, RT_WAITING_FOREVER);

        /* <20>ٽ<EFBFBD><D9BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>в<EFBFBD><D0B2><EFBFBD> */
        rt_sem_take(&sem_lock, RT_WAITING_FOREVER);
        sum += array[get%MAXSEM];
        rt_kprintf("the consumer[%d] get a number: %d\n", no, array[get%MAXSEM] );
        get++;
        rt_sem_release(&sem_lock);

        /* <20>ͷ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>λ */
        rt_sem_release(&sem_empty);

        /* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>100<30><30><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF>ֹͣ<CDA3><D6B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD><DFB3><EFBFBD>Ӧֹͣ */
        if (get == 100) break;

        /* <20><>ͣһС<D2BB><D0A1>ʱ<EFBFBD><CAB1> */
        rt_thread_delay(10);
    }

    rt_kprintf("the consumer[%d] sum is %d \n ", no, sum);
    rt_kprintf("the consumer[%d] exit!\n");
}

int semaphore_producer_consumer_init()
{
    /* <20><>ʼ<EFBFBD><CABC>3<EFBFBD><33><EFBFBD>ź<EFBFBD><C5BA><EFBFBD> */
    rt_sem_init(&sem_lock , "lock",     1,      RT_IPC_FLAG_FIFO);
    rt_sem_init(&sem_empty, "empty",    MAXSEM, RT_IPC_FLAG_FIFO);
    rt_sem_init(&sem_full , "full",     0,      RT_IPC_FLAG_FIFO);

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

    /* <20><><EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD>2 */
    consumer_tid = rt_thread_create("consumer",
                                    consumer_thread_entry, RT_NULL, /* <20>߳<EFBFBD><DFB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>consumer_thread_entry, <20><><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>RT_NULL */
                                    THREAD_STACK_SIZE, THREAD_PRIORITY + 1, THREAD_TIMESLICE);
    if (consumer_tid != RT_NULL)
        rt_thread_startup(consumer_tid);
    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();

    rt_sem_detach(&sem_lock);
    rt_sem_detach(&sem_empty);
    rt_sem_detach(&sem_full);

    /* ɾ<><C9BE><EFBFBD>߳<EFBFBD> */
    if (producer_tid != RT_NULL && producer_tid->stat != RT_THREAD_CLOSE)
        rt_thread_delete(producer_tid);
    if (consumer_tid != RT_NULL && consumer_tid->stat != RT_THREAD_CLOSE)
        rt_thread_delete(consumer_tid);

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

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

int _tc_semaphore_producer_consumer()
{
    /* <20><><EFBFBD><EFBFBD>TestCase<73><65><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD><D8B5><EFBFBD><EFBFBD><EFBFBD> */
    tc_cleanup(_tc_cleanup);
    semaphore_producer_consumer_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_semaphore_producer_consumer, producer and consumer example);
#else
/* <20>û<EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
int rt_application_init()
{
    semaphore_producer_consumer_init();

    return 0;
}
#endif