C++ RTMemFree函数代码示例

//.........这里部分代码省略.........
                /* Unsupported clipboard format is requested. */
                Log(("WM_RENDERFORMAT unsupported format requested or client is not active.\n"));
                EmptyClipboard ();
            }
            else
            {
                int vboxrc = vboxClipboardReadDataFromClient (pCtx, u32Format);

                dprintf(("vboxClipboardReadDataFromClient vboxrc = %d\n", vboxrc));

                if (   RT_SUCCESS (vboxrc)
                    && pCtx->pClient->data.pv != NULL
                    && pCtx->pClient->data.cb > 0
                    && pCtx->pClient->data.u32Format == u32Format)
                {
                    HANDLE hMem = GlobalAlloc (GMEM_DDESHARE | GMEM_MOVEABLE, pCtx->pClient->data.cb);

                    dprintf(("hMem %p\n", hMem));

                    if (hMem)
                    {
                        void *pMem = GlobalLock (hMem);

                        dprintf(("pMem %p, GlobalSize %d\n", pMem, GlobalSize (hMem)));

                        if (pMem)
                        {
                            Log(("WM_RENDERFORMAT setting data\n"));

                            if (pCtx->pClient->data.pv)
                            {
                                memcpy (pMem, pCtx->pClient->data.pv, pCtx->pClient->data.cb);

                                RTMemFree (pCtx->pClient->data.pv);
                                pCtx->pClient->data.pv        = NULL;
                            }

                            pCtx->pClient->data.cb        = 0;
                            pCtx->pClient->data.u32Format = 0;

                            /* The memory must be unlocked before inserting to the Clipboard. */
                            GlobalUnlock (hMem);

                            /* 'hMem' contains the host clipboard data.
                             * size is 'cb' and format is 'format'.
                             */
                            HANDLE hClip = SetClipboardData (format, hMem);

                            dprintf(("vboxClipboardHostEvent hClip %p\n", hClip));

                            if (hClip)
                            {
                                /* The hMem ownership has gone to the system. Nothing to do. */
                                break;
                            }
                        }

                        GlobalFree (hMem);
                    }
                }

                RTMemFree (pCtx->pClient->data.pv);
                pCtx->pClient->data.pv        = NULL;
                pCtx->pClient->data.cb        = 0;
                pCtx->pClient->data.u32Format = 0;

//.........这里部分代码省略.........
                                    int rc2 = RTUtf16ToUtf8(pwszFile, &pszFile);
                                    AssertRC(rc2);
                                }
                                else
                                    rc = VERR_NO_MEMORY;
                            }
                            else /* ANSI */
                            {
                                /* Allocate enough space (including terminator). */
                                pszFile = (char *)RTMemAlloc((cch + 1) * sizeof(char));
                                if (pszFile)
                                {
                                    cchFile = DragQueryFileA(hDrop, i /* File index */,
                                                             pszFile, cchFile + 1 /* Include terminator */);
                                    AssertMsg(cchFile == cch, ("cchCopied (%RU16) does not match cchFile (%RU16)\n",
                                                               cchFile, cch));
                                }
                                else
                                    rc = VERR_NO_MEMORY;
                            }

                            if (RT_SUCCESS(rc))
                            {
                                LogFlowFunc(("\tFile: %s (cchFile=%RU32)\n",
                                             pszFile, cchFile));

                                rc = RTStrAAppendExN(&pszFiles, 1 /* cPairs */,
                                                     pszFile, cchFile);
                                if (RT_SUCCESS(rc))
                                    cchFiles += cchFile;
                            }

                            if (pszFile)
                                RTMemFree(pszFile);

                            if (RT_FAILURE(rc))
                                break;

                            /* Add separation between filenames.
                             * Note: Also do this for the last element of the list. */
                            rc = RTStrAAppendExN(&pszFiles, 1 /* cPairs */,
                                                 "\r\n", 2 /* Bytes */);
                            if (RT_SUCCESS(rc))
                                cchFiles += 2; /* Include \r\n */
                        }

                        if (RT_SUCCESS(rc))
                        {
                            cchFiles += 1; /* Add string termination. */
                            uint32_t cbFiles = cchFiles * sizeof(char);

                            LogFlowFunc(("cFiles=%u, cchFiles=%RU32, cbFiles=%RU32, pszFiles=0x%p\n",
                                         cFiles, cchFiles, cbFiles, pszFiles));

                            /* Translate the list into URI elements. */
                            DnDURIList lstURI;
                            rc = lstURI.AppendNativePathsFromList(pszFiles, cbFiles,
                                                                  DNDURILIST_FLAGS_ABSOLUTE_PATHS);
                            if (RT_SUCCESS(rc))
                            {
                                RTCString strRoot = lstURI.RootToString();
                                size_t cbRoot = strRoot.length() + 1; /* Include termination */

                                mpvData = RTMemAlloc(cbRoot);
                                if (mpvData)
                                {

RTDECL(int) RTSemRWDestroy(RTSEMRW hRWSem)
{
    struct RTSEMRWINTERNAL *pThis = hRWSem;

    /*
     * Validate handle.
     */
    if (pThis == NIL_RTSEMRW)
        return VINF_SUCCESS;
    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
    AssertReturn(pThis->u32Magic == RTSEMRW_MAGIC, VERR_INVALID_HANDLE);

    /*
     * Check if busy.
     */
    int rc = RTCritSectTryEnter(&pThis->CritSect);
    if (RT_SUCCESS(rc))
    {
        if (!pThis->cReads && !pThis->cWrites)
        {
            /*
             * Make it invalid and unusable.
             */
            ASMAtomicWriteU32(&pThis->u32Magic, ~RTSEMRW_MAGIC);
            pThis->cReads = ~0;

            /*
             * Do actual cleanup. None of these can now fail.
             */
            rc = RTSemEventMultiDestroy(pThis->ReadEvent);
            AssertMsgRC(rc, ("RTSemEventMultiDestroy failed! rc=%Rrc\n", rc));
            pThis->ReadEvent = NIL_RTSEMEVENTMULTI;

            rc = RTSemEventDestroy(pThis->WriteEvent);
            AssertMsgRC(rc, ("RTSemEventDestroy failed! rc=%Rrc\n", rc));
            pThis->WriteEvent = NIL_RTSEMEVENT;

            RTCritSectLeave(&pThis->CritSect);
            rc = RTCritSectDelete(&pThis->CritSect);
            AssertMsgRC(rc, ("RTCritSectDelete failed! rc=%Rrc\n", rc));

#ifdef RTSEMRW_STRICT
            RTLockValidatorRecSharedDelete(&pThis->ValidatorRead);
            RTLockValidatorRecExclDelete(&pThis->ValidatorWrite);
#endif
            RTMemFree(pThis);
            rc = VINF_SUCCESS;
        }
        else
        {
            rc = VERR_SEM_BUSY;
            RTCritSectLeave(&pThis->CritSect);
        }
    }
    else
    {
        AssertMsgRC(rc, ("RTCritSectTryEnter failed! rc=%Rrc\n", rc));
        rc = VERR_SEM_BUSY;
    }

    return rc;
}

RTDECL(int) RTMemCacheCreate(PRTMEMCACHE phMemCache, size_t cbObject, size_t cbAlignment, uint32_t cMaxObjects,
                             PFNMEMCACHECTOR pfnCtor, PFNMEMCACHEDTOR pfnDtor, void *pvUser, uint32_t fFlags)

{
    AssertPtr(phMemCache);
    AssertPtrNull(pfnCtor);
    AssertPtrNull(pfnDtor);
    AssertReturn(!pfnDtor || pfnCtor, VERR_INVALID_PARAMETER);
    AssertReturn(cbObject > 0, VERR_INVALID_PARAMETER);
    AssertReturn(cbObject <= PAGE_SIZE / 8, VERR_INVALID_PARAMETER);
    AssertReturn(!fFlags, VERR_INVALID_PARAMETER);

    if (cbAlignment == 0)
    {
        if (cbObject <= 2)
            cbAlignment = cbObject;
        else if (cbObject <= 4)
            cbAlignment = 4;
        else if (cbObject <= 8)
            cbAlignment = 8;
        else if (cbObject <= 16)
            cbAlignment = 16;
        else if (cbObject <= 32)
            cbAlignment = 32;
        else
            cbAlignment = 64;
    }
    else
    {
        AssertReturn(!((cbAlignment - 1) & cbAlignment), VERR_NOT_POWER_OF_TWO);
        AssertReturn(cbAlignment <= 64, VERR_OUT_OF_RANGE);
    }

    /*
     * Allocate and initialize the instance memory.
     */
    RTMEMCACHEINT *pThis = (RTMEMCACHEINT *)RTMemAlloc(sizeof(*pThis));
    if (!pThis)
        return VERR_NO_MEMORY;
    int rc = RTCritSectInit(&pThis->CritSect);
    if (RT_FAILURE(rc))
    {
        RTMemFree(pThis);
        return rc;
    }

    pThis->u32Magic         = RTMEMCACHE_MAGIC;
    pThis->cbObject         = (uint32_t)RT_ALIGN_Z(cbObject, cbAlignment);
    pThis->cbAlignment      = (uint32_t)cbAlignment;
    pThis->cPerPage         = (uint32_t)((PAGE_SIZE - RT_ALIGN_Z(sizeof(RTMEMCACHEPAGE), cbAlignment)) / pThis->cbObject);
    while (  RT_ALIGN_Z(sizeof(RTMEMCACHEPAGE), 8)
           + pThis->cPerPage * pThis->cbObject
           + RT_ALIGN(pThis->cPerPage, 64) / 8 * 2
           > PAGE_SIZE)
        pThis->cPerPage--;
    pThis->cBits            = RT_ALIGN(pThis->cPerPage, 64);
    pThis->cMax             = cMaxObjects;
    pThis->fUseFreeList     = cbObject >= sizeof(RTMEMCACHEFREEOBJ)
                           && !pfnCtor
                           && !pfnDtor;
    pThis->pPageHead        = NULL;
    pThis->pfnCtor          = pfnCtor;
    pThis->pfnDtor          = pfnDtor;
    pThis->pvUser           = pvUser;
    pThis->cTotal           = 0;
    pThis->cFree            = 0;
    pThis->pPageHint        = NULL;
    pThis->pFreeTop         = NULL;

    /** @todo
     * Here is a puzzler (or maybe I'm just blind), the free list code breaks
     * badly on my macbook pro (i7) (32-bit).
     *
     * I tried changing the reads from unordered to ordered to no avail.  Then I
     * tried optimizing the code with the ASMAtomicCmpXchgExPtr function to
     * avoid some reads - no change. Inserting pause instructions did nothing
     * (as expected).  The only thing which seems to make a difference is
     * reading the pFreeTop pointer twice in the the free code... This is weird
     * or I'm overlooking something..
     *
     * No time to figure it out, so I'm disabling the broken code paths for
     * now. */
    pThis->fUseFreeList = false;

    *phMemCache = pThis;
    return VINF_SUCCESS;
}

static int vboxvfs_mount(struct mount *mp, struct thread *td)
{
    int rc;
    char *pszShare;
    int  cbShare, cbOption;
    int uid = 0, gid = 0;
    struct sf_glob_info *pShFlGlobalInfo;
    SHFLSTRING *pShFlShareName = NULL;
    int cbShFlShareName;

    printf("%s: Enter\n", __FUNCTION__);

    if (mp->mnt_flag & (MNT_UPDATE | MNT_ROOTFS))
        return EOPNOTSUPP;

    if (vfs_filteropt(mp->mnt_optnew, vboxvfs_opts))
    {
        vfs_mount_error(mp, "%s", "Invalid option");
        return EINVAL;
    }

    rc = vfs_getopt(mp->mnt_optnew, "from", (void **)&pszShare, &cbShare);
    if (rc || pszShare[cbShare-1] != '\0' || cbShare > 0xfffe)
        return EINVAL;

    rc = vfs_getopt(mp->mnt_optnew, "gid", (void **)&gid, &cbOption);
    if ((rc != ENOENT) && (rc || cbOption != sizeof(gid)))
        return EINVAL;

    rc = vfs_getopt(mp->mnt_optnew, "uid", (void **)&uid, &cbOption);
    if ((rc != ENOENT) && (rc || cbOption != sizeof(uid)))
        return EINVAL;

    pShFlGlobalInfo = RTMemAllocZ(sizeof(struct sf_glob_info));
    if (!pShFlGlobalInfo)
        return ENOMEM;

    cbShFlShareName = offsetof (SHFLSTRING, String.utf8) + cbShare + 1;
    pShFlShareName  = RTMemAllocZ(cbShFlShareName);
    if (!pShFlShareName)
        return VERR_NO_MEMORY;

    pShFlShareName->u16Length = cbShFlShareName;
    pShFlShareName->u16Size   = cbShFlShareName + 1;
    memcpy (pShFlShareName->String.utf8, pszShare, cbShare + 1);

    rc = vboxCallMapFolder (&g_vboxSFClient, pShFlShareName, &pShFlGlobalInfo->map);
    RTMemFree(pShFlShareName);

    if (RT_FAILURE (rc))
    {
        RTMemFree(pShFlGlobalInfo);
        printf("vboxCallMapFolder failed rc=%d\n", rc);
        return EPROTO;
    }

    pShFlGlobalInfo->uid = uid;
    pShFlGlobalInfo->gid = gid;

    mp->mnt_data = pShFlGlobalInfo;

    /* @todo root vnode. */

    vfs_getnewfsid(mp);
    vfs_mountedfrom(mp, pszShare);

    printf("%s: Leave rc=0\n", __FUNCTION__);

    return 0;
}

/**
 * Free a symbol structure previously allocated by a RTDbg method.
 *
 * @param   pSymInfo        The symbol info to free. NULL is ignored.
 */
RTDECL(void) RTDbgSymbolFree(PRTDBGSYMBOL pSymInfo)
{
    RTMemFree(pSymInfo);
}

/**
 * Free one USB device returned by getDevice().
 *
 * @param   pDevice     Pointer to the device.
 */
/*static*/ void
USBProxyService::freeDevice(PUSBDEVICE pDevice)
{
    freeDeviceMembers(pDevice);
    RTMemFree(pDevice);
}

/**
 * Device I/O Control entry point.
 *
 * @param   pFilp       Associated file pointer.
 * @param   uCmd        The function specified to ioctl().
 * @param   ulArg       The argument specified to ioctl().
 * @param   pSession    The session instance.
 */
static int VBoxDrvLinuxIOCtlSlow(struct file *pFilp, unsigned int uCmd, unsigned long ulArg, PSUPDRVSESSION pSession)
{
    int                 rc;
    SUPREQHDR           Hdr;
    PSUPREQHDR          pHdr;
    uint32_t            cbBuf;

    Log6(("VBoxDrvLinuxIOCtl: pFilp=%p uCmd=%#x ulArg=%p pid=%d/%d\n", pFilp, uCmd, (void *)ulArg, RTProcSelf(), current->pid));

    /*
     * Read the header.
     */
    if (RT_FAILURE(RTR0MemUserCopyFrom(&Hdr, ulArg, sizeof(Hdr))))
    {
        Log(("VBoxDrvLinuxIOCtl: copy_from_user(,%#lx,) failed; uCmd=%#x\n", ulArg, uCmd));
        return -EFAULT;
    }
    if (RT_UNLIKELY((Hdr.fFlags & SUPREQHDR_FLAGS_MAGIC_MASK) != SUPREQHDR_FLAGS_MAGIC))
    {
        Log(("VBoxDrvLinuxIOCtl: bad header magic %#x; uCmd=%#x\n", Hdr.fFlags & SUPREQHDR_FLAGS_MAGIC_MASK, uCmd));
        return -EINVAL;
    }

    /*
     * Buffer the request.
     */
    cbBuf = RT_MAX(Hdr.cbIn, Hdr.cbOut);
    if (RT_UNLIKELY(cbBuf > _1M*16))
    {
        Log(("VBoxDrvLinuxIOCtl: too big cbBuf=%#x; uCmd=%#x\n", cbBuf, uCmd));
        return -E2BIG;
    }
    if (RT_UNLIKELY(_IOC_SIZE(uCmd) ? cbBuf != _IOC_SIZE(uCmd) : Hdr.cbIn < sizeof(Hdr)))
    {
        Log(("VBoxDrvLinuxIOCtl: bad ioctl cbBuf=%#x _IOC_SIZE=%#x; uCmd=%#x\n", cbBuf, _IOC_SIZE(uCmd), uCmd));
        return -EINVAL;
    }
    pHdr = RTMemAlloc(cbBuf);
    if (RT_UNLIKELY(!pHdr))
    {
        OSDBGPRINT(("VBoxDrvLinuxIOCtl: failed to allocate buffer of %d bytes for uCmd=%#x\n", cbBuf, uCmd));
        return -ENOMEM;
    }
    if (RT_FAILURE(RTR0MemUserCopyFrom(pHdr, ulArg, Hdr.cbIn)))
    {
        Log(("VBoxDrvLinuxIOCtl: copy_from_user(,%#lx, %#x) failed; uCmd=%#x\n", ulArg, Hdr.cbIn, uCmd));
        RTMemFree(pHdr);
        return -EFAULT;
    }
    if (Hdr.cbIn < cbBuf)
        RT_BZERO((uint8_t *)pHdr + Hdr.cbIn, cbBuf - Hdr.cbIn);

    /*
     * Process the IOCtl.
     */
    rc = supdrvIOCtl(uCmd, &g_DevExt, pSession, pHdr, cbBuf);

    /*
     * Copy ioctl data and output buffer back to user space.
     */
    if (RT_LIKELY(!rc))
    {
        uint32_t cbOut = pHdr->cbOut;
        if (RT_UNLIKELY(cbOut > cbBuf))
        {
            OSDBGPRINT(("VBoxDrvLinuxIOCtl: too much output! %#x > %#x; uCmd=%#x!\n", cbOut, cbBuf, uCmd));
            cbOut = cbBuf;
        }
        if (RT_FAILURE(RTR0MemUserCopyTo(ulArg, pHdr, cbOut)))
        {
            /* this is really bad! */
            OSDBGPRINT(("VBoxDrvLinuxIOCtl: copy_to_user(%#lx,,%#x); uCmd=%#x!\n", ulArg, cbOut, uCmd));
            rc = -EFAULT;
        }
    }
    else
    {
        Log(("VBoxDrvLinuxIOCtl: pFilp=%p uCmd=%#x ulArg=%p failed, rc=%d\n", pFilp, uCmd, (void *)ulArg, rc));
        rc = -EINVAL;
    }
    RTMemFree(pHdr);

    Log6(("VBoxDrvLinuxIOCtl: returns %d (pid=%d/%d)\n", rc, RTProcSelf(), current->pid));
    return rc;
}

void VBoxDispD3DGlobal2DFormatsTerm(PVBOXWDDMDISP_ADAPTER pAdapter)
{
    if (pAdapter->Formats.paFormstOps)
        RTMemFree((void *)pAdapter->Formats.paFormstOps);
}

RTDECL(int) RTCrStoreCertExportAsPem(RTCRSTORE hStore, uint32_t fFlags, const char *pszFilename)
{
    /*
     * Validate input.
     */
    AssertReturn(!fFlags, VERR_INVALID_FLAGS);

    /*
     * Start the enumeration first as this validates the store handle.
     */
    RTCRSTORECERTSEARCH Search;
    int rc = RTCrStoreCertFindAll(hStore, &Search);
    if (RT_SUCCESS(rc))
    {
        /*
         * Open the file for writing.
         *
         * Note! We must use text and no binary here, because the base-64 API
         *       below will use host specific EOL markers, not CRLF as PEM
         *       specifies.
         */
        PRTSTREAM hStrm;
        rc = RTStrmOpen(pszFilename, "w", &hStrm);
        if (RT_SUCCESS(rc))
        {
            /*
             * Enumerate the certificates in the store, writing them out one by one.
             */
            size_t          cbBase64  = 0;
            char           *pszBase64 = NULL;
            PCRTCRCERTCTX   pCertCtx;
            while ((pCertCtx = RTCrStoreCertSearchNext(hStore, &Search)) != NULL)
            {
                const char *pszMarker;
                switch (pCertCtx->fFlags & RTCRCERTCTX_F_ENC_MASK)
                {
                    case RTCRCERTCTX_F_ENC_X509_DER:    pszMarker = "CERTIFICATE";  break;
                    case RTCRCERTCTX_F_ENC_TAF_DER:     pszMarker = "TRUST ANCHOR"; break;
                    default:                            pszMarker = NULL;           break;
                }
                if (pszMarker && pCertCtx->cbEncoded > 0)
                {
                    /*
                     * Do the base64 conversion first.
                     */
                    size_t cchEncoded = RTBase64EncodedLength(pCertCtx->cbEncoded);
                    if (cchEncoded < cbBase64)
                    { /* likely */ }
                    else
                    {
                        size_t cbNew = RT_ALIGN(cchEncoded + 64, 128);
                        void *pvNew = RTMemRealloc(pszBase64, cbNew);
                        if (!pvNew)
                        {
                            rc = VERR_NO_MEMORY;
                            break;
                        }
                        cbBase64  = cbNew;
                        pszBase64 = (char *)pvNew;
                    }
                    rc = RTBase64Encode(pCertCtx->pabEncoded, pCertCtx->cbEncoded, pszBase64, cbBase64, &cchEncoded);
                    if (RT_FAILURE(rc))
                        break;

                    RTStrmPrintf(hStrm, "-----BEGIN %s-----\n", pszMarker);
                    RTStrmWrite(hStrm, pszBase64, cchEncoded);
                    rc = RTStrmPrintf(hStrm, "\n-----END %s-----\n", pszMarker);
                    if (RT_FAILURE(rc))
                        break;
                }

                RTCrCertCtxRelease(pCertCtx);
            }
            if (pCertCtx)
                RTCrCertCtxRelease(pCertCtx);
            RTMemFree(pszBase64);

            /*
             * Flush the output file before closing.
             */
            int rc2 = RTStrmFlush(hStrm);
            if (RT_FAILURE(rc2) && RT_SUCCESS(rc))
                rc = rc2;
            RTStrmClearError(hStrm); /** @todo fix RTStrmClose... */
            rc2 = RTStrmClose(hStrm);
            if (RT_FAILURE(rc2) && RT_SUCCESS(rc))
                rc = rc2;
        }

        int rc2 = RTCrStoreCertSearchDestroy(hStore, &Search); AssertRC(rc2);
    }
    return rc;
}

DECLCALLBACK(int) vboxUhgsmiD3DBufferCreate(PVBOXUHGSMI pHgsmi, uint32_t cbBuf,
        VBOXUHGSMI_SYNCHOBJECT_TYPE enmSynchType, HVBOXUHGSMI_SYNCHOBJECT hSynch,
        PVBOXUHGSMI_BUFFER* ppBuf)
{
    bool bSynchCreated = false;
    if (!cbBuf)
        return VERR_INVALID_PARAMETER;

    int rc = vboxUhgsmiBaseEventChkCreate(enmSynchType, &hSynch, &bSynchCreated);
    AssertRC(rc);
    if (RT_FAILURE(rc))
        return rc;

    cbBuf = VBOXWDDM_ROUNDBOUND(cbBuf, 0x1000);
    Assert(cbBuf);
    uint32_t cPages = cbBuf >> 12;
    Assert(cPages);

    PVBOXUHGSMI_PRIVATE_D3D pPrivate = VBOXUHGSMID3D_GET(pHgsmi);
    PVBOXUHGSMI_BUFFER_PRIVATE_D3D pBuf = (PVBOXUHGSMI_BUFFER_PRIVATE_D3D)RTMemAllocZ(RT_OFFSETOF(VBOXUHGSMI_BUFFER_PRIVATE_D3D, aLockPageIndices[cPages]));
    Assert(pBuf);
    if (pBuf)
    {
        struct
        {
            D3DDDICB_ALLOCATE DdiAlloc;
            D3DDDI_ALLOCATIONINFO DdiAllocInfo;
            VBOXWDDM_ALLOCINFO AllocInfo;
        } Buf;
        memset(&Buf, 0, sizeof (Buf));
        Buf.DdiAlloc.hResource = NULL;
        Buf.DdiAlloc.hKMResource = NULL;
        Buf.DdiAlloc.NumAllocations = 1;
        Buf.DdiAlloc.pAllocationInfo = &Buf.DdiAllocInfo;
        Buf.DdiAllocInfo.pPrivateDriverData = &Buf.AllocInfo;
        Buf.DdiAllocInfo.PrivateDriverDataSize = sizeof (Buf.AllocInfo);
        Buf.AllocInfo.enmType = VBOXWDDM_ALLOC_TYPE_UMD_HGSMI_BUFFER;
        Buf.AllocInfo.cbBuffer = cbBuf;
        Buf.AllocInfo.hSynch = hSynch;
        Buf.AllocInfo.enmSynchType = enmSynchType;

        HRESULT hr = pPrivate->pDevice->RtCallbacks.pfnAllocateCb(pPrivate->pDevice->hDevice, &Buf.DdiAlloc);
        Assert(hr == S_OK);
        if (hr == S_OK)
        {
            Assert(Buf.DdiAllocInfo.hAllocation);
            pBuf->BasePrivate.Base.pfnLock = vboxUhgsmiD3DBufferLock;
            pBuf->BasePrivate.Base.pfnUnlock = vboxUhgsmiD3DBufferUnlock;
//            pBuf->Base.pfnAdjustValidDataRange = vboxUhgsmiD3DBufferAdjustValidDataRange;
            pBuf->BasePrivate.Base.pfnDestroy = vboxUhgsmiD3DBufferDestroy;

            pBuf->BasePrivate.Base.hSynch = hSynch;
            pBuf->BasePrivate.Base.enmSynchType = enmSynchType;
            pBuf->BasePrivate.Base.cbBuffer = cbBuf;
            pBuf->BasePrivate.Base.bSynchCreated = bSynchCreated;

            pBuf->pDevice = pPrivate->pDevice;
            pBuf->BasePrivate.hAllocation = Buf.DdiAllocInfo.hAllocation;

            *ppBuf = &pBuf->BasePrivate.Base;

            return VINF_SUCCESS;
        }

        RTMemFree(pBuf);
    }
    else
        rc = VERR_NO_MEMORY;

    if (bSynchCreated)
        CloseHandle(hSynch);

    return rc;
}

//.........这里部分代码省略.........
            if (pa == aVDInfo[i].paFileExtensions)
                RTPrintf("<EMPTY>");
        }
        else
            RTPrintf("<NONE>");
        RTPrintf(" config=");
        if (aVDInfo[i].paConfigInfo)
        {
            PCVDCONFIGINFO pa = aVDInfo[i].paConfigInfo;
            while (pa->pszKey != NULL)
            {
                if (pa != aVDInfo[i].paConfigInfo)
                    RTPrintf(",");
                RTPrintf("(key=%s type=", pa->pszKey);
                switch (pa->enmValueType)
                {
                    case VDCFGVALUETYPE_INTEGER:
                        RTPrintf("integer");
                        break;
                    case VDCFGVALUETYPE_STRING:
                        RTPrintf("string");
                        break;
                    case VDCFGVALUETYPE_BYTES:
                        RTPrintf("bytes");
                        break;
                    default:
                        RTPrintf("INVALID!");
                }
                RTPrintf(" default=");
                if (pa->pszDefaultValue)
                    RTPrintf("%s", pa->pszDefaultValue);
                else
                    RTPrintf("<NONE>");
                RTPrintf(" flags=");
                if (!pa->uKeyFlags)
                    RTPrintf("none");
                unsigned cFlags = 0;
                if (pa->uKeyFlags & VD_CFGKEY_MANDATORY)
                {
                    if (cFlags)
                        RTPrintf(",");
                    RTPrintf("mandatory");
                    cFlags++;
                }
                if (pa->uKeyFlags & VD_CFGKEY_EXPERT)
                {
                    if (cFlags)
                        RTPrintf(",");
                    RTPrintf("expert");
                    cFlags++;
                }
                RTPrintf(")");
                pa++;
            }
            if (pa == aVDInfo[i].paConfigInfo)
                RTPrintf("<EMPTY>");
        }
        else
            RTPrintf("<NONE>");
        RTPrintf("\n");

        PVDINTERFACE pVDIfs = NULL;
        VDINTERFACECONFIG ic;

        ic.pfnAreKeysValid = tstAreKeysValid;
        ic.pfnQuerySize    = tstQuerySize;
        ic.pfnQuery        = tstQuery;

        rc = VDInterfaceAdd(&ic.Core, "tstVD-2_Config", VDINTERFACETYPE_CONFIG,
                            NULL, sizeof(VDINTERFACECONFIG), &pVDIfs);
        AssertRC(rc);

        char *pszLocation, *pszName;
        rc = aVDInfo[i].pfnComposeLocation(pVDIfs, &pszLocation);
        CHECK("pfnComposeLocation()");
        if (pszLocation)
        {
            RTMemFree(pszLocation);
            if (aVDInfo[i].uBackendCaps & VD_CAP_FILE)
            {
                RTPrintf("Non-NULL location returned for file-based backend!\n");
                return VERR_INTERNAL_ERROR;
            }
        }
        rc = aVDInfo[i].pfnComposeName(pVDIfs, &pszName);
        CHECK("pfnComposeName()");
        if (pszName)
        {
            RTMemFree(pszName);
            if (aVDInfo[i].uBackendCaps & VD_CAP_FILE)
            {
                RTPrintf("Non-NULL name returned for file-based backend!\n");
                return VERR_INTERNAL_ERROR;
            }
        }
    }

#undef CHECK
    return 0;
}

//.........这里部分代码省略.........
                             || pEntry->uFamily != uFamily)
                        pEntry = pCur;
                    else if (  pCur->enmMicroarch >= enmMicroarch
                             ? pCur->enmMicroarch < pEntry->enmMicroarch || pEntry->enmMicroarch < enmMicroarch
                             : pCur->enmMicroarch > pEntry->enmMicroarch)
                        pEntry = pCur;
                }
                /* We don't do closeness matching on family, we use the first
                   entry for the CPU vendor instead. (P4 workaround.) */
                else if (!pEntry)
                    pEntry = pCur;
            }
        }

        if (pEntry)
            LogRel(("CPUM: Matched host CPU %s %#x/%#x/%#x %s with CPU DB entry '%s' (%s %#x/%#x/%#x %s).\n",
                    CPUMR3CpuVendorName(enmVendor), uFamily, uModel, uStepping, CPUMR3MicroarchName(enmMicroarch),
                    pEntry->pszName,  CPUMR3CpuVendorName((CPUMCPUVENDOR)pEntry->enmVendor), pEntry->uFamily, pEntry->uModel,
                    pEntry->uStepping, CPUMR3MicroarchName(pEntry->enmMicroarch) ));
        else
        {
            pEntry = g_apCpumDbEntries[0];
            LogRel(("CPUM: No matching processor database entry %s %#x/%#x/%#x %s, falling back on '%s'.\n",
                    CPUMR3CpuVendorName(enmVendor), uFamily, uModel, uStepping, CPUMR3MicroarchName(enmMicroarch),
                    pEntry->pszName));
        }
    }
    else
    {
        /*
         * We're supposed to be emulating a specific CPU that is included in
         * our CPU database.  The CPUID tables needs to be copied onto the
         * heap so the caller can modify them and so they can be freed like
         * in the host case above.
         */
        for (unsigned i = 0; i < RT_ELEMENTS(g_apCpumDbEntries); i++)
            if (!strcmp(pszName, g_apCpumDbEntries[i]->pszName))
            {
                pEntry = g_apCpumDbEntries[i];
                break;
            }
        if (!pEntry)
        {
            LogRel(("CPUM: Cannot locate any CPU by the name '%s'\n", pszName));
            return VERR_CPUM_DB_CPU_NOT_FOUND;
        }

        pInfo->cCpuIdLeaves = pEntry->cCpuIdLeaves;
        if (pEntry->cCpuIdLeaves)
        {
            pInfo->paCpuIdLeavesR3 = (PCPUMCPUIDLEAF)RTMemDup(pEntry->paCpuIdLeaves,
                                                              sizeof(pEntry->paCpuIdLeaves[0]) * pEntry->cCpuIdLeaves);
            if (!pInfo->paCpuIdLeavesR3)
                return VERR_NO_MEMORY;
        }
        else
            pInfo->paCpuIdLeavesR3 = NULL;

        pInfo->enmUnknownCpuIdMethod = pEntry->enmUnknownCpuId;
        pInfo->DefCpuId         = pEntry->DefUnknownCpuId;

        LogRel(("CPUM: Using CPU DB entry '%s' (%s %#x/%#x/%#x %s).\n",
                pEntry->pszName, CPUMR3CpuVendorName((CPUMCPUVENDOR)pEntry->enmVendor),
                pEntry->uFamily, pEntry->uModel, pEntry->uStepping, CPUMR3MicroarchName(pEntry->enmMicroarch) ));
    }

    pInfo->fMsrMask             = pEntry->fMsrMask;
    pInfo->iFirstExtCpuIdLeaf   = 0; /* Set by caller. */
    pInfo->uPadding             = 0;
    pInfo->uScalableBusFreq     = pEntry->uScalableBusFreq;
    pInfo->paCpuIdLeavesR0      = NIL_RTR0PTR;
    pInfo->paMsrRangesR0        = NIL_RTR0PTR;
    pInfo->paCpuIdLeavesRC      = NIL_RTRCPTR;
    pInfo->paMsrRangesRC        = NIL_RTRCPTR;

    /*
     * Copy the MSR range.
     */
    uint32_t        cMsrs   = 0;
    PCPUMMSRRANGE   paMsrs  = NULL;

    PCCPUMMSRRANGE  pCurMsr = pEntry->paMsrRanges;
    uint32_t        cLeft   = pEntry->cMsrRanges;
    while (cLeft-- > 0)
    {
        rc = cpumR3MsrRangesInsert(&paMsrs, &cMsrs, pCurMsr);
        if (RT_FAILURE(rc))
        {
            Assert(!paMsrs); /* The above function frees this. */
            RTMemFree(pInfo->paCpuIdLeavesR3);
            pInfo->paCpuIdLeavesR3 = NULL;
            return rc;
        }
        pCurMsr++;
    }

    pInfo->paMsrRangesR3   = paMsrs;
    pInfo->cMsrRanges      = cMsrs;
    return VINF_SUCCESS;
}

static DECLCALLBACK(int) scriptRun(PVM pVM, RTFILE File)
{
    RTPrintf("info: running script...\n");
    uint64_t cb;
    int rc = RTFileGetSize(File, &cb);
    if (RT_SUCCESS(rc))
    {
        if (cb == 0)
            return VINF_SUCCESS;
        if (cb < _1M)
        {
            char *pszBuf = (char *)RTMemAllocZ(cb + 1);
            if (pszBuf)
            {
                rc = RTFileRead(File, pszBuf, cb, NULL);
                if (RT_SUCCESS(rc))
                {
                    pszBuf[cb] = '\0';

                    /*
                     * Now process what's in the buffer.
                     */
                    char *psz = pszBuf;
                    while (psz && *psz)
                    {
                        /* skip blanks. */
                        while (RT_C_IS_SPACE(*psz))
                            psz++;
                        if (!*psz)
                            break;

                        /* end of line */
                        char *pszNext;
                        char *pszEnd = strchr(psz, '\n');
                        if (!pszEnd)
                            pszEnd = strchr(psz, '\r');
                        if (!pszEnd)
                            pszNext = pszEnd = strchr(psz, '\0');
                        else
                            pszNext = pszEnd + 1;

                        if (*psz != ';' && *psz != '#' && *psz != '/')
                        {
                            /* strip end */
                            *pszEnd = '\0';
                            while (pszEnd > psz && RT_C_IS_SPACE(pszEnd[-1]))
                                *--pszEnd = '\0';

                            /* process the line */
                            RTPrintf("debug: executing script line '%s'\n",  psz);
                            rc = scriptCommand(pVM, psz, pszEnd - psz);
                            if (RT_FAILURE(rc))
                            {
                                RTPrintf("error: '%s' failed: %Rrc\n", psz, rc);
                                break;
                            }
                        }
                        /* else comment line */

                        /* next */
                        psz = pszNext;
                    }

                }
                else
                    RTPrintf("error: failed to read script file: %Rrc\n", rc);
                RTMemFree(pszBuf);
            }
            else
            {
                RTPrintf("error: Out of memory. (%d bytes)\n", cb + 1);
                rc = VERR_NO_MEMORY;
            }
        }
        else
            RTPrintf("error: script file is too large (0x%llx bytes)\n", cb);
    }
    else
        RTPrintf("error: couldn't get size of script file: %Rrc\n", rc);

    return rc;
}

VBOXDDU_DECL(int) VDDbgIoLogEventGetStartDiscard(VDIOLOGGER hIoLogger, uint64_t *pidEvent, bool *pfAsync,
                                                 PRTRANGE *ppaRanges, unsigned *pcRanges)
{
    int rc = VINF_SUCCESS;
    PVDIOLOGGERINT pIoLogger = hIoLogger;

    AssertPtrReturn(pIoLogger, VERR_INVALID_HANDLE);
    AssertPtrReturn(pidEvent, VERR_INVALID_POINTER);
    AssertPtrReturn(pfAsync, VERR_INVALID_POINTER);

    rc = RTSemFastMutexRequest(pIoLogger->hMtx);
    AssertRCReturn(rc, rc);

    if (   pIoLogger->u32EventTypeNext == VDIOLOG_EVENT_START
        && pIoLogger->enmReqTypeNext == VDDBGIOLOGREQ_DISCARD)
    {
        IoLogEntryStart Entry;
        rc = RTFileReadAt(pIoLogger->hFile, pIoLogger->offReadNext, &Entry, sizeof(Entry), NULL);
        if (RT_SUCCESS(rc))
        {
            PRTRANGE paRanges = NULL;
            IoLogEntryDiscard DiscardRange;

            pIoLogger->offReadNext += sizeof(Entry);
            *pfAsync   = RT_BOOL(Entry.u8AsyncIo);
            *pidEvent  = RT_LE2H_U64(Entry.u64Id);
            *pcRanges  = RT_LE2H_U32(Entry.Discard.cRanges);

            paRanges = (PRTRANGE)RTMemAllocZ(*pcRanges * sizeof(RTRANGE));
            if (paRanges)
            {
                for (unsigned i = 0; i < *pcRanges; i++)
                {
                    rc = RTFileReadAt(pIoLogger->hFile, pIoLogger->offReadNext + i*sizeof(DiscardRange),
                                      &DiscardRange, sizeof(DiscardRange), NULL);
                    if (RT_FAILURE(rc))
                        break;

                    paRanges[i].offStart = RT_LE2H_U64(DiscardRange.u64Off);
                    paRanges[i].cbRange  = RT_LE2H_U32(DiscardRange.u32Discard);
                }

                if (RT_SUCCESS(rc))
                {
                    pIoLogger->offReadNext += *pcRanges * sizeof(DiscardRange);
                    *ppaRanges = paRanges;
                }
                else
                {
                    pIoLogger->offReadNext -= sizeof(Entry);
                    RTMemFree(paRanges);
                }
            }
            else
                rc = VERR_NO_MEMORY;
        }
    }
    else
        rc = VERR_INVALID_STATE;

    if (RT_SUCCESS(rc))
        pIoLogger->u32EventTypeNext = 0;

    RTSemFastMutexRelease(pIoLogger->hMtx);
    return rc;

}