Esempi in C++ (Cpp) per CurrentClockTickTime

Esempio n. 1

File: win_rand.c Progetto: Akin-Net/mozilla-central

size_t RNG_GetNoise(void *buf, size_t maxbuf)
{
    DWORD   dwHigh, dwLow, dwVal;
    int     n = 0;
    int     nBytes;

    if (maxbuf <= 0)
        return 0;

    CurrentClockTickTime(&dwHigh, &dwLow);

    // get the maximally changing bits first
    nBytes = sizeof(dwLow) > maxbuf ? maxbuf : sizeof(dwLow);
    memcpy((char *)buf, &dwLow, nBytes);
    n += nBytes;
    maxbuf -= nBytes;

    if (maxbuf <= 0)
        return n;

    nBytes = sizeof(dwHigh) > maxbuf ? maxbuf : sizeof(dwHigh);
    memcpy(((char *)buf) + n, &dwHigh, nBytes);
    n += nBytes;
    maxbuf -= nBytes;

    if (maxbuf <= 0)
        return n;

    // get the number of milliseconds that have elapsed since Windows started
    dwVal = GetTickCount();

    nBytes = sizeof(dwVal) > maxbuf ? maxbuf : sizeof(dwVal);
    memcpy(((char *)buf) + n, &dwVal, nBytes);
    n += nBytes;
    maxbuf -= nBytes;

    if (maxbuf <= 0)
        return n;

    {
#if defined(_WIN32_WCE)
    // get the number of milliseconds elapsed since Windows CE was started. 
    FILETIME sTime;
    SYSTEMTIME st;
    GetSystemTime(&st);
    SystemTimeToFileTime(&st,&sTime);
#else
    time_t  sTime;
    // get the time in seconds since midnight Jan 1, 1970
    time(&sTime);
#endif
    nBytes = sizeof(sTime) > maxbuf ? maxbuf : sizeof(sTime);
    memcpy(((char *)buf) + n, &sTime, nBytes);
    n += nBytes;
    }

    return n;
}

Esempio n. 2

File: w32rng.c Progetto: venkatarajasekhar/Qt

extern PRSize _PR_MD_GetRandomNoise( void *buf, PRSize size )
{
    DWORD   dwHigh, dwLow, dwVal;
    size_t  n = 0;
    size_t  nBytes;
    time_t  sTime;

    if (size <= 0)
        return 0;

    CurrentClockTickTime(&dwHigh, &dwLow);

    // get the maximally changing bits first
    nBytes = sizeof(dwLow) > size ? size : sizeof(dwLow);
    memcpy((char *)buf, &dwLow, nBytes);
    n += nBytes;
    size -= nBytes;

    if (size <= 0)
        return n;

    nBytes = sizeof(dwHigh) > size ? size : sizeof(dwHigh);
    memcpy(((char *)buf) + n, &dwHigh, nBytes);
    n += nBytes;
    size -= nBytes;

    if (size <= 0)
        return n;

    // get the number of milliseconds that have elapsed since Windows started
    dwVal = GetTickCount();

    nBytes = sizeof(dwVal) > size ? size : sizeof(dwVal);
    memcpy(((char *)buf) + n, &dwVal, nBytes);
    n += nBytes;
    size -= nBytes;

    if (size <= 0)
        return n;

    // get the time in seconds since midnight Jan 1, 1970
    time(&sTime);
    nBytes = sizeof(sTime) > size ? size : sizeof(sTime);
    memcpy(((char *)buf) + n, &sTime, nBytes);
    n += nBytes;

    return n;
}

Esempio n. 3

File: win_rand.c Progetto: Akheon23/chromecast-mirrored-source.external

size_t RNG_GetNoise(void *buf, size_t maxbuf)
{
    DWORD   dwHigh, dwLow, dwVal;
    int     n = 0;
    int     nBytes;
    time_t  sTime;

    if (maxbuf <= 0)
        return 0;

    CurrentClockTickTime(&dwHigh, &dwLow);

    // get the maximally changing bits first
    nBytes = sizeof(dwLow) > maxbuf ? maxbuf : sizeof(dwLow);
    memcpy((char *)buf, &dwLow, nBytes);
    n += nBytes;
    maxbuf -= nBytes;

    if (maxbuf <= 0)
        return n;

    nBytes = sizeof(dwHigh) > maxbuf ? maxbuf : sizeof(dwHigh);
    memcpy(((char *)buf) + n, &dwHigh, nBytes);
    n += nBytes;
    maxbuf -= nBytes;

    if (maxbuf <= 0)
        return n;

    // get the number of milliseconds that have elapsed since Windows started
    dwVal = GetTickCount();

    nBytes = sizeof(dwVal) > maxbuf ? maxbuf : sizeof(dwVal);
    memcpy(((char *)buf) + n, &dwVal, nBytes);
    n += nBytes;
    maxbuf -= nBytes;

    if (maxbuf <= 0)
        return n;

    // get the time in seconds since midnight Jan 1, 1970
    time(&sTime);
    nBytes = sizeof(sTime) > maxbuf ? maxbuf : sizeof(sTime);
    memcpy(((char *)buf) + n, &sTime, nBytes);
    n += nBytes;

    return n;
}