Cross Reference: /vbox/src/VBox/Runtime/common/misc/sg.cpp

Lines Matching refs:pSgBuf
37 static void *sgBufGet(PRTSGBUF pSgBuf, size_t *pcbData)
43     if (RT_UNLIKELY(   pSgBuf->idxSeg == pSgBuf->cSegs
44                     && !pSgBuf->cbSegLeft))
51     AssertReleaseMsg(      pSgBuf->cbSegLeft <= 32 * _1M
52                      &&    (uintptr_t)pSgBuf->pvSegCur                     >= (uintptr_t)pSgBuf->paSegs[pSgBuf->idxSeg].pvSeg
53                      &&    (uintptr_t)pSgBuf->pvSegCur + pSgBuf->cbSegLeft <= (uintptr_t)pSgBuf->paSegs[pSgBuf->idxSeg].pvSeg + pSgBuf->paSegs[pSgBuf->idxSeg].cbSeg,
54                      ("pSgBuf->idxSeg=%d pSgBuf->cSegs=%d pSgBuf->pvSegCur=%p pSgBuf->cbSegLeft=%zd pSgBuf->paSegs[%d].pvSeg=%p pSgBuf->paSegs[%d].cbSeg=%zd\n",
55                       pSgBuf->idxSeg, pSgBuf->cSegs, pSgBuf->pvSegCur, pSgBuf->cbSegLeft,
56                       pSgBuf->idxSeg, pSgBuf->paSegs[pSgBuf->idxSeg].pvSeg, pSgBuf->idxSeg, pSgBuf->paSegs[pSgBuf->idxSeg].cbSeg));
59     cbData = RT_MIN(*pcbData, pSgBuf->cbSegLeft);
60     pvBuf  = pSgBuf->pvSegCur;
61     pSgBuf->cbSegLeft -= cbData;
64     if (!pSgBuf->cbSegLeft)
66         pSgBuf->idxSeg++;
68         if (pSgBuf->idxSeg < pSgBuf->cSegs)
70             pSgBuf->pvSegCur  = pSgBuf->paSegs[pSgBuf->idxSeg].pvSeg;
71             pSgBuf->cbSegLeft = pSgBuf->paSegs[pSgBuf->idxSeg].cbSeg;
77         pSgBuf->pvSegCur = (uint8_t *)pSgBuf->pvSegCur + cbData;
83 RTDECL(void) RTSgBufInit(PRTSGBUF pSgBuf, PCRTSGSEG paSegs, size_t cSegs)
85     AssertPtr(pSgBuf);
90     pSgBuf->paSegs    = paSegs;
91     pSgBuf->cSegs     = (unsigned)cSegs;
92     pSgBuf->idxSeg    = 0;
93     pSgBuf->pvSegCur  = paSegs[0].pvSeg;
94     pSgBuf->cbSegLeft = paSegs[0].cbSeg;
98 RTDECL(void) RTSgBufReset(PRTSGBUF pSgBuf)
100     AssertPtrReturnVoid(pSgBuf);
102     pSgBuf->idxSeg    = 0;
103     pSgBuf->pvSegCur  = pSgBuf->paSegs[0].pvSeg;
104     pSgBuf->cbSegLeft = pSgBuf->paSegs[0].cbSeg;
121 RTDECL(void *) RTSgBufGetNextSegment(PRTSGBUF pSgBuf, size_t *pcbSeg)
123     AssertPtrReturn(pSgBuf, NULL);
127         *pcbSeg = pSgBuf->cbSegLeft;
129     return sgBufGet(pSgBuf, pcbSeg);
272 RTDECL(size_t) RTSgBufSet(PRTSGBUF pSgBuf, uint8_t ubFill, size_t cbSet)
274     AssertPtrReturn(pSgBuf, 0);
281         void *pvBuf = sgBufGet(pSgBuf, &cbThisSet);
295 RTDECL(size_t) RTSgBufCopyToBuf(PRTSGBUF pSgBuf, void *pvBuf, size_t cbCopy)
297     AssertPtrReturn(pSgBuf, 0);
305         void *pvSrc = sgBufGet(pSgBuf, &cbThisCopy);
320 RTDECL(size_t) RTSgBufCopyFromBuf(PRTSGBUF pSgBuf, const void *pvBuf, size_t cbCopy)
322     AssertPtrReturn(pSgBuf, 0);
330         void *pvDst = sgBufGet(pSgBuf, &cbThisCopy);
345 RTDECL(size_t) RTSgBufAdvance(PRTSGBUF pSgBuf, size_t cbAdvance)
347     AssertPtrReturn(pSgBuf, 0);
354         void *pv = sgBufGet(pSgBuf, &cbThisAdvance);
368 RTDECL(size_t) RTSgBufSegArrayCreate(PRTSGBUF pSgBuf, PRTSGSEG paSeg, unsigned *pcSeg, size_t cbData)
370     AssertPtrReturn(pSgBuf, 0);
378         if (pSgBuf->cbSegLeft > 0)
380             size_t idx = pSgBuf->idxSeg;
383             cb     += RT_MIN(pSgBuf->cbSegLeft, cbData);
384             cbData -= RT_MIN(pSgBuf->cbSegLeft, cbData);
387                    && idx < pSgBuf->cSegs - 1)
391                 cb     += RT_MIN(pSgBuf->paSegs[idx].cbSeg, cbData);
392                 cbData -= RT_MIN(pSgBuf->paSegs[idx].cbSeg, cbData);
404             pvSeg = sgBufGet(pSgBuf, &cbThisSeg);
427 RTDECL(bool) RTSgBufIsZero(PRTSGBUF pSgBuf, size_t cbCheck)
433     RTSgBufClone(&SgBufTmp, pSgBuf);