C++ (Cpp) Cache::Strerr Examples

Example #1

File: main_ipc.cpp Project: YangChunQuan/Code

int Wcache()
{
    Cache cache;

    int nRet = cache.Attach(g_sKeyFile, WRITER);
    if (nRet < 0)
    {
        printf("%s\n", cache.Strerr());
        return -1;
    }

    printf("Attach success %d\n", nRet);
    nRet = cache.Register();
    if (nRet < 0)
    {
        printf("%s\n", cache.Strerr());
        return -1;
    }
    printf("Register  OK %d\n", nRet);

    gettimeofday(&time_c, NULL);
    while (true)
    {
        if (_HandleSignal() < 0)
            break;

        gettimeofday(&time_a, NULL);
        memcpy(wbuff, &time_a, sizeof(time_a));
        nRet = cache.Write(wbuff, g_len);
        gettimeofday(&time_b, NULL);

        if (nRet != g_len)
        {
            printf("write fialed %s\n", cache.Strerr());
            return -1;
        }
        g_count0++;

        unsigned long long use_time0 = (time_b.tv_sec - time_a.tv_sec) * 1000000 + (time_b.tv_usec - time_a.tv_usec);
        total_time0 += use_time0;

        if(g_usleep > 0)
            usleep(g_usleep);
    }
    double time = (time_b.tv_sec-time_c.tv_sec)*1000000 + (time_b.tv_usec - time_c.tv_usec);
    double speed = (double)g_count0/time;
    printf("speed:%lf unit/s \n", speed*1000000);

    return 0;
}

Example #2

File: main_ipc.cpp Project: YangChunQuan/Code

int Rcache()
{
    Cache  cache;

    int nRet = cache.Attach(g_sKeyFile, READER);
    if(nRet < 0)
    {
        printf("%s\n", cache.Strerr() );
        return -1;
    }
    printf("Attach success %d\n", nRet);
    if( cache.Register( 0 ) < 0)
        return -1;

    gettimeofday(&time_c, NULL);
    while (true)
    {
        if (_HandleSignal() < 0)
            break;

        gettimeofday(&time_a, NULL);
        nRet = cache.Read(rbuff, sizeof(rbuff), g_nSig);
        gettimeofday(&time_b, NULL);
        struct timeval *time_w = (struct timeval *)(rbuff);

        if(nRet == 0)
        {
            printf("writer exit\n");
            continue;
        }
        if (nRet != g_len)
        {
            printf("read fialed nRet %d %s\n", nRet, cache.Strerr());
            break;
        }
        g_count0++;


        if(g_verify == 1)
        {
            struct data* d = (struct data* )(rbuff+sizeof(struct timeval));
            if( d->compare() < 0)
            {
                printf("format error %s\n");fflush(NULL);
            }
        }

        unsigned long long use_time0 = (time_b.tv_sec - time_a.tv_sec) * 1000000 + (time_b.tv_usec - time_a.tv_usec);
        total_time0 += use_time0;

        unsigned long long delay_time = (time_b.tv_sec - time_w->tv_sec) * 1000000 + (time_b.tv_usec - time_w->tv_usec);
        if(delay_time < 10000)
        {
            if(delay_time > g_delay_max)
                g_delay_max = delay_time;
            recv_delay_count0++;
            recv_delay0 += delay_time;
        }
    }
    return 0;
}

Example #3

File: main_ipc.cpp Project: YangChunQuan/Code

int Cache_()
{
    Cache cachew;
    Cache cacher;

    int nRet = cachew.Attach(g_sKeyFile, WRITER);
    if (nRet < 0)
    {
        printf("%s\n", cachew.Strerr());
        return -1;
    }
    nRet = cacher.Attach(g_sKeyFile, READER);
    if (nRet < 0)
    {
        printf("%s\n", cacher.Strerr());
        return -1;
    }

    printf("Attach success %d\n", nRet);
    nRet = cachew.Register();
    if (nRet < 0)
    {
        printf("%s\n", cachew.Strerr());
        return -1;
    }
    nRet = cacher.Register();
    if (nRet < 0)
    {
        printf("%s\n", cacher.Strerr());
        return -1;
    }
    printf("Register  OK %d\n", nRet);

    while (true)
    {
        if (_HandleSignal() < 0)
            break;

        gettimeofday(&time_a, NULL);
        nRet = cachew.Write(wbuff, g_len);
        gettimeofday(&time_b, NULL);

        if (nRet != g_len)
        {
            printf("fialed %s\n", cachew.Strerr());
            break;
        }

        if(g_usleep > 0)
            usleep(g_usleep);

        gettimeofday(&time_c, NULL);
        nRet = cacher.Read(rbuff, sizeof(rbuff), g_nSig);
        gettimeofday(&time_d, NULL);

        if (nRet != g_len)
        {
            printf("fialed %s\n", cacher.Strerr());
            break;
        }

        g_count1++;
        g_count2++;

        unsigned long long use_time1 = (time_b.tv_sec - time_a.tv_sec) * 1000000 + (time_b.tv_usec - time_a.tv_usec);
        total_time1 += use_time1;
        unsigned long long use_time2 = (time_d.tv_sec - time_c.tv_sec) * 1000000 + (time_d.tv_usec - time_c.tv_usec);
        total_time2 += use_time2;
    }

    return 0;
}