/** @copydoc VBOXHDDBACKEND::pfnWrite */
static DECLCALLBACK(int) rawWrite(void *pBackendData, uint64_t uOffset, size_t cbWrite,
PVDIOCTX pIoCtx, size_t *pcbWriteProcess, size_t *pcbPreRead,
size_t *pcbPostRead, unsigned fWrite)
{
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)
{
*pcbWriteProcess = 0;
*pcbPostRead = 0;
*pcbPreRead = 0;
return VERR_INVALID_PARAMETER;
}
rc = vdIfIoIntFileWriteUser(pImage->pIfIo, pImage->pStorage, uOffset,
pIoCtx, cbWrite, NULL, NULL);
if (RT_SUCCESS(rc))
{
*pcbWriteProcess = cbWrite;
*pcbPostRead = 0;
*pcbPreRead = 0;
pImage->offAccess = uOffset + cbWrite;
}
return rc;
}
/** @copydoc VBOXHDDBACKEND::pfnWrite */
static int rawWrite(void *pBackendData, uint64_t uOffset, size_t cbWrite,
PVDIOCTX pIoCtx, size_t *pcbWriteProcess, size_t *pcbPreRead,
size_t *pcbPostRead, unsigned fWrite)
{
int rc = VINF_SUCCESS;
PRAWIMAGE pImage = (PRAWIMAGE)pBackendData;
rc = vdIfIoIntFileWriteUser(pImage->pIfIo, pImage->pStorage, uOffset,
pIoCtx, cbWrite, NULL, NULL);
if (RT_SUCCESS(rc))
{
*pcbWriteProcess = cbWrite;
*pcbPostRead = 0;
*pcbPreRead = 0;
}
return rc;
}
