Exemplos de vdIfIoIntFileReadUser em C++ (Cpp)

Exemplo n.º 1

Arquivo: RAW.cpp Projeto: sobomax/virtualbox_64bit_edd

/** @copydoc VBOXHDDBACKEND::pfnRead */
static int rawRead(void *pBackendData, uint64_t uOffset, size_t cbRead,
                   PVDIOCTX pIoCtx, size_t *pcbActuallyRead)
{
    int rc = VINF_SUCCESS;
    PRAWIMAGE pImage = (PRAWIMAGE)pBackendData;

    rc = vdIfIoIntFileReadUser(pImage->pIfIo, pImage->pStorage, uOffset,
                               pIoCtx, cbRead);
    if (RT_SUCCESS(rc))
        *pcbActuallyRead = cbRead;

    return rc;
}

Exemplo n.º 2

Arquivo: RAW.cpp Projeto: miguelinux/vbox

/** @copydoc VBOXHDDBACKEND::pfnRead */
static DECLCALLBACK(int) rawRead(void *pBackendData, uint64_t uOffset, size_t cbRead,
                                 PVDIOCTX pIoCtx, size_t *pcbActuallyRead)
{
    int rc = VINF_SUCCESS;
    PRAWIMAGE pImage = (PRAWIMAGE)pBackendData;

    /* For sequential access do not allow to go back. */
    if (   pImage->uOpenFlags & VD_OPEN_FLAGS_SEQUENTIAL
        && uOffset < pImage->offAccess)
    {
        *pcbActuallyRead = 0;
        return VERR_INVALID_PARAMETER;
    }

    rc = vdIfIoIntFileReadUser(pImage->pIfIo, pImage->pStorage, uOffset,
                               pIoCtx, cbRead);
    if (RT_SUCCESS(rc))
    {
        *pcbActuallyRead = cbRead;
        pImage->offAccess = uOffset + cbRead;
    }

    return rc;
}