Cross Reference: /vbox/src/VBox/Storage/VDVfs.cpp

Lines Matching refs:off
58  * @param   off      Offset to start reading from.
62 static int vdReadHelper(PVBOXHDD pDisk, uint64_t off, void *pvBuf, size_t cbRead)
67     if (   off % 512 == 0
69         rc = VDRead(pDisk, off, pvBuf, cbRead);
76         if (off % 512 != 0)
78             uint64_t offAligned = off & ~(uint64_t)(512 - 1);
79             size_t cbToCopy = 512 - (off - offAligned);
83                 memcpy(pbBuf, &abBuf[off - offAligned], cbToCopy);
85                 off    += cbToCopy;
95             Assert(!(off % 512));
96             rc = VDRead(pDisk, off, pbBuf, cbReadAligned);
100                 off    += cbReadAligned;
109             Assert(!(off % 512));
111             rc = VDRead(pDisk, off, abBuf, 512);
126  * @param   off      Offset to start writing to.
130 static int vdWriteHelper(PVBOXHDD pDisk, uint64_t off, const void *pvBuf, size_t cbWrite)
135     if (   off % 512 == 0
137         rc = VDWrite(pDisk, off, pvBuf, cbWrite);
144         if (off % 512 != 0)
146             uint64_t offAligned = off & ~(uint64_t)(512 - 1);
147             size_t cbToCopy = 512 - (off - offAligned);
151                 memcpy(&abBuf[off - offAligned], pbBuf, cbToCopy);
155                 off     += cbToCopy;
165             Assert(!(off % 512));
166             rc = VDWrite(pDisk, off, pbBuf, cbWriteAligned);
170                 off     += cbWriteAligned;
179             Assert(!(off % 512));
181             rc = VDRead(pDisk, off, abBuf, 512);
185                 rc = VDWrite(pDisk, off, abBuf, 512);
224 static DECLCALLBACK(int) vdVfsFile_Read(void *pvThis, RTFOFF off, PCRTSGBUF pSgBuf, bool fBlocking, size_t *pcbRead)
235     uint64_t offUnsigned = off < 0 ? pThis->offCurPos : (uint64_t)off;
266         rc = vdReadHelper(pThis->pDisk, (uint64_t)off, pSgBuf->paSegs[0].pvSeg, cbLeftToRead);
279 static DECLCALLBACK(int) vdVfsFile_Write(void *pvThis, RTFOFF off, PCRTSGBUF pSgBuf, bool fBlocking, size_t *pcbWritten)
291     uint64_t offUnsigned = off < 0 ? pThis->offCurPos : (uint64_t)off;
321         rc = vdWriteHelper(pThis->pDisk, (uint64_t)off, pSgBuf->paSegs[0].pvSeg, cbLeftToWrite);