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799 lines
19 KiB
799 lines
19 KiB
//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1994.
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//
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// File: filllkb.cxx
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//
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// Contents: IFillLockBytes and ILockBytes wrapper for async docfiles
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//
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// Classes:
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//
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// Functions:
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//
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// History: 19-Dec-95 PhilipLa Created
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//
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//----------------------------------------------------------------------------
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#include "astghead.cxx"
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#pragma hdrstop
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#include "filllkb.hxx"
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#include <valid.h>
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#include <utils.hxx>
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//+---------------------------------------------------------------------------
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//
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// Member: CFillLockBytes::CFillLockBytes, public
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//
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// Synopsis: Default constructor
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//
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// History: 28-Dec-95 PhilipLa Created
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//
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//----------------------------------------------------------------------------
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CFillLockBytes::CFillLockBytes(ILockBytes *pilb)
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{
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_pilb = pilb;
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pilb->AddRef();
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_ulHighWater = 0;
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_ulFailurePoint = 0;
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_dwTerminate = UNTERMINATED;
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#ifdef ASYNC
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_ppc = NULL;
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#else
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_hNotifyEvent = INVALID_HANDLE_VALUE;
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#endif
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_fCSInitialized = FALSE;
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_cRefs = 1;
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CFillLockBytes::~CFillLockBytes, public
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//
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// Synopsis: Destructor
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//
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// History: 28-Dec-95 PhilipLa Created
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//
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//----------------------------------------------------------------------------
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CFillLockBytes::~CFillLockBytes()
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{
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astgAssert(_pilb == NULL);
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#ifdef ASYNC
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#ifdef MULTIHEAP
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if (_ppc)
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{
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CSafeMultiHeap smh(_ppc);
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if (_ppc->ReleaseSharedMem() == 0)
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g_smAllocator.Uninit();
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}
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#endif
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#else
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if (_hNotifyEvent != INVALID_HANDLE_VALUE)
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{
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CloseHandle(_hNotifyEvent);
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}
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#endif
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if (_fCSInitialized)
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DeleteCriticalSection(&_csThreadProtect);
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CFillLockBytes::Init, public
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//
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// Synopsis:
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//
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// Arguments:
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//
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// Returns: Appropriate status code
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//
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// Modifies:
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//
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// History: 11-Jan-96 PhilipLa Created
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//
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// Notes:
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//
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//----------------------------------------------------------------------------
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SCODE CFillLockBytes::Init(void)
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{
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SCODE sc;
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astgDebugOut((DEB_ITRACE, "In CFillLockBytes::Init:%p()\n", this));
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if (FALSE == _fCSInitialized)
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{
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__try
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{
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InitializeCriticalSection(&_csThreadProtect);
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_fCSInitialized = TRUE;
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}
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__except( EXCEPTION_EXECUTE_HANDLER )
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{
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return HRESULT_FROM_WIN32( GetExceptionCode() );
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}
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}
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#ifndef ASYNC
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_hNotifyEvent = CreateEvent(NULL,
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TRUE,
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FALSE,
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NULL);
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if (_hNotifyEvent == NULL)
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{
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return Win32ErrorToScode(GetLastError());
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}
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#endif
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astgDebugOut((DEB_ITRACE, "Out CFillLockBytes::Init\n"));
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return S_OK;
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}
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//+--------------------------------------------------------------
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//
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// Member: CFillLockBytes::QueryInterface, public
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//
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// Synopsis: Returns an object for the requested interface
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//
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// Arguments: [iid] - Interface ID
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// [ppvObj] - Object return
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//
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// Returns: Appropriate status code
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//
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// Modifies: [ppvObj]
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//
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// History: 26-Mar-92 DrewB Created
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//
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//---------------------------------------------------------------
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STDMETHODIMP CFillLockBytes::QueryInterface(REFIID iid, void **ppvObj)
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{
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SCODE sc;
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astgDebugOut((DEB_ITRACE, "In CFillLockBytes::QueryInterface(?, %p)\n",
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ppvObj));
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astgChk(ValidateOutPtrBuffer(ppvObj));
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*ppvObj = NULL;
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sc = S_OK;
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if (IsEqualIID(iid, IID_IUnknown))
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{
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*ppvObj = (ILockBytes *)this;
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CFillLockBytes::AddRef();
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}
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else if (IsEqualIID(iid, IID_ILockBytes))
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{
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*ppvObj = (ILockBytes *)this;
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CFillLockBytes::AddRef();
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}
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else if (IsEqualIID(iid, IID_IFillLockBytes))
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{
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*ppvObj = (IFillLockBytes *)this;
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CFillLockBytes::AddRef();
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}
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#ifdef ASYNC
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else if (IsEqualIID(iid, IID_IFillInfo))
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{
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*ppvObj = (IFillInfo *)this;
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CFillLockBytes::AddRef();
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}
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#endif
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else if (IsEqualIID(iid, IID_IDefaultFillLockBytes))
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{
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*ppvObj = (IFillLockBytes *)this;
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CFillLockBytes::AddRef();
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}
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else
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{
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sc = E_NOINTERFACE;
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}
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astgDebugOut((DEB_ITRACE, "Out CFillLockBytes::QueryInterface => %p\n",
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ppvObj));
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Err:
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return ResultFromScode(sc);
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}
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//+--------------------------------------------------------------
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//
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// Member: CFillLockBytes::AddRef, public
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//
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// Synopsis: Increments the ref count
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//
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// Returns: Appropriate status code
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//
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// History: 16-Mar-92 DrewB Created
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//
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//---------------------------------------------------------------
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STDMETHODIMP_(ULONG) CFillLockBytes::AddRef(void)
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{
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InterlockedIncrement (&_cRefs);
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return _cRefs;
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CFillLockBytes::Release, public
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//
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// History: 28-Dec-95 PhilipLa Created
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//
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//----------------------------------------------------------------------------
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STDMETHODIMP_(ULONG) CFillLockBytes::Release(void)
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{
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LONG lRet;
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InterlockedDecrement (&_cRefs);
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lRet = _cRefs;
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if (lRet == 0)
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{
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_pilb->Release();
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_pilb = NULL;
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delete this;
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}
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return lRet;
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CFillLockBytes::ReadAt, public
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//
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// Synopsis:
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//
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// Arguments:
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//
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// Returns: Appropriate status code
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//
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// Modifies:
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//
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// History: 28-Dec-95 PhilipLa Created
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//
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// Notes:
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//
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//----------------------------------------------------------------------------
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STDMETHODIMP CFillLockBytes::ReadAt(ULARGE_INTEGER ulOffset,
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VOID HUGEP *pv,
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ULONG cb,
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ULONG *pcbRead)
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{
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SCODE sc;
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astgDebugOut((DEB_ITRACE, "In CFillLockBytes::ReadAt:%p()\n", this));
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if (NULL == pv || NULL == pcbRead)
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return STG_E_INVALIDPARAMETER;
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if (_dwTerminate == TERMINATED_ABNORMAL)
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{
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sc = STG_E_INCOMPLETE;
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}
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else if ((_dwTerminate == TERMINATED_NORMAL) ||
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(ULIGetLow(ulOffset) + cb <= _ulHighWater))
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{
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sc = _pilb->ReadAt(ulOffset, pv, cb, pcbRead);
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}
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else
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{
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*pcbRead = 0;
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_ulFailurePoint = cb + ULIGetLow(ulOffset);
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sc = E_PENDING;
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}
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astgDebugOut((DEB_ITRACE, "Out CFillLockBytes::ReadAt\n"));
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return sc;
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CFillLockBytes::WriteAt, public
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//
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// Synopsis:
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//
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// Arguments:
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//
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// Returns: Appropriate status code
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//
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// Modifies:
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//
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// History: 28-Dec-95 PhilipLa Created
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//
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// Notes:
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//
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//----------------------------------------------------------------------------
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STDMETHODIMP CFillLockBytes::WriteAt(ULARGE_INTEGER ulOffset,
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VOID const HUGEP *pv,
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ULONG cb,
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ULONG *pcbWritten)
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{
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SCODE sc;
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astgDebugOut((DEB_ITRACE, "In CFillLockBytes::WriteAt:%p()\n", this));
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if (NULL == pv || NULL == pcbWritten)
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return STG_E_INVALIDPARAMETER;
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if (_dwTerminate == TERMINATED_ABNORMAL)
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{
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sc = STG_E_INCOMPLETE;
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}
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else if ((_dwTerminate == TERMINATED_NORMAL) ||
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(ULIGetLow(ulOffset) + cb <= _ulHighWater))
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{
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sc = _pilb->WriteAt(ulOffset, pv, cb, pcbWritten);
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}
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else
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{
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*pcbWritten = 0;
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_ulFailurePoint = cb + ULIGetLow(ulOffset);
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sc = E_PENDING;
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}
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astgDebugOut((DEB_ITRACE, "Out CFillLockBytes::WriteAt\n"));
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return sc;
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CFillLockBytes::Flush, public
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//
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// Synopsis:
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//
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// Arguments:
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//
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// Returns: Appropriate status code
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//
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// Modifies:
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//
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// History: 28-Dec-95 PhilipLa Created
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//
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// Notes:
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//
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//----------------------------------------------------------------------------
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STDMETHODIMP CFillLockBytes::Flush(void)
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{
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SCODE sc;
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astgDebugOut((DEB_ITRACE, "In CFillLockBytes::Flush:%p()\n", this));
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sc = _pilb->Flush();
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astgDebugOut((DEB_ITRACE, "Out CFillLockBytes::Flush\n"));
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return sc;
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CFillLockBytes::SetSize, public
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//
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// Synopsis:
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//
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// Arguments:
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//
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// Returns: Appropriate status code
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//
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// Modifies:
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//
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// History: 28-Dec-95 PhilipLa Created
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//
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// Notes:
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//
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//----------------------------------------------------------------------------
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STDMETHODIMP CFillLockBytes::SetSize(ULARGE_INTEGER cb)
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{
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SCODE sc;
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astgDebugOut((DEB_ITRACE, "In CFillLockBytes::SetSize:%p()\n", this));
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if (_dwTerminate == TERMINATED_ABNORMAL)
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{
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sc = STG_E_INCOMPLETE;
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}
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else if ((_dwTerminate == TERMINATED_NORMAL) ||
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(ULIGetLow(cb) <= _ulHighWater))
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{
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sc = _pilb->SetSize(cb);
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}
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else
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{
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_ulFailurePoint = ULIGetLow(cb);
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sc = E_PENDING;
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}
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astgDebugOut((DEB_ITRACE, "Out CFillLockBytes::SetSize\n"));
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return sc;
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CFillLockBytes::LockRegion, public
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//
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// Synopsis:
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//
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// Arguments:
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//
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// Returns: Appropriate status code
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//
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// Modifies:
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//
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// History: 28-Dec-95 PhilipLa Created
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//
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// Notes:
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//
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//----------------------------------------------------------------------------
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STDMETHODIMP CFillLockBytes::LockRegion(ULARGE_INTEGER libOffset,
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ULARGE_INTEGER cb,
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DWORD dwLockType)
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{
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SCODE sc;
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astgDebugOut((DEB_ITRACE, "In CFillLockBytes::LockRegion:%p()\n", this));
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sc = _pilb->LockRegion(libOffset, cb, dwLockType);
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astgDebugOut((DEB_ITRACE, "Out CFillLockBytes::LockRegion\n"));
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return sc;
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CFillLockBytes::UnlockRegion, public
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//
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// Synopsis:
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//
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// Arguments:
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//
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// Returns: Appropriate status code
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//
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// Modifies:
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//
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// History: 28-Dec-95 PhilipLa Created
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//
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// Notes:
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//
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//----------------------------------------------------------------------------
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STDMETHODIMP CFillLockBytes::UnlockRegion(ULARGE_INTEGER libOffset,
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ULARGE_INTEGER cb,
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DWORD dwLockType)
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{
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SCODE sc;
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astgDebugOut((DEB_ITRACE, "In CFillLockBytes::UnlockRegion:%p()\n", this));
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sc = _pilb->UnlockRegion(libOffset, cb, dwLockType);
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astgDebugOut((DEB_ITRACE, "Out CFillLockBytes::UnlockRegion\n"));
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return sc;
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}
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|
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//+---------------------------------------------------------------------------
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//
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// Member: CFillLockBytes::Stat, public
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//
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// Synopsis:
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//
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// Arguments:
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//
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// Returns: Appropriate status code
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//
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// Modifies:
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|
//
|
|
// History: 28-Dec-95 PhilipLa Created
|
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//
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// Notes:
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//
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//----------------------------------------------------------------------------
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STDMETHODIMP CFillLockBytes::Stat(STATSTG *pstatstg, DWORD grfStatFlag)
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{
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SCODE sc;
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astgDebugOut((DEB_ITRACE, "In CFillLockBytes::Stat:%p()\n", this));
|
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if (_dwTerminate == TERMINATED_ABNORMAL)
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{
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sc = STG_E_INCOMPLETE;
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}
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else
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{
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sc = _pilb->Stat(pstatstg, grfStatFlag);
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}
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astgDebugOut((DEB_ITRACE, "Out CFillLockBytes::Stat\n"));
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return sc;
|
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}
|
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|
|
|
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//+---------------------------------------------------------------------------
|
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//
|
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// Member: CFillLockBytes::FillAppend, public
|
|
//
|
|
// Synopsis:
|
|
//
|
|
// Arguments:
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//
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// Returns: Appropriate status code
|
|
//
|
|
// Modifies:
|
|
//
|
|
// History: 28-Dec-95 PhilipLa Created
|
|
//
|
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// Notes:
|
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//
|
|
//----------------------------------------------------------------------------
|
|
|
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STDMETHODIMP CFillLockBytes::FillAppend(void const *pv,
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ULONG cb,
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ULONG *pcbWritten)
|
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{
|
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SCODE sc;
|
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astgDebugOut((DEB_ITRACE, "In CFillLockBytes::FillAppend:%p()\n", this));
|
|
|
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sc = ValidateBuffer (pv, cb);
|
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if (!SUCCEEDED(sc))
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return sc;
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|
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if (_dwTerminate != UNTERMINATED)
|
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{
|
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sc = STG_E_TERMINATED;
|
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}
|
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else
|
|
{
|
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ULONG cbWritten;
|
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ULARGE_INTEGER uli;
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uli.QuadPart = _ulHighWater;
|
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sc = _pilb->WriteAt(uli, pv, cb, &cbWritten);
|
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_ulHighWater += cbWritten;
|
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if (pcbWritten != NULL)
|
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{
|
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*pcbWritten = cbWritten;
|
|
}
|
|
#ifdef ASYNC
|
|
if (_ppc)
|
|
{
|
|
HANDLE hEvent = _ppc->GetNotificationEvent();
|
|
if (!PulseEvent(hEvent))
|
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{
|
|
sc = Win32ErrorToScode(GetLastError());
|
|
}
|
|
}
|
|
#else
|
|
if (!PulseEvent(_hNotifyEvent))
|
|
{
|
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sc = Win32ErrorToScode(GetLastError());
|
|
}
|
|
#endif
|
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}
|
|
|
|
astgDebugOut((DEB_ITRACE, "Out CFillLockBytes::FillAppend\n"));
|
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return sc;
|
|
}
|
|
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Member: CFillLockBytes::FillAt, public
|
|
//
|
|
// Synopsis:
|
|
//
|
|
// Arguments:
|
|
//
|
|
// Returns: Appropriate status code
|
|
//
|
|
// Modifies:
|
|
//
|
|
// History: 28-Dec-95 PhilipLa Created
|
|
//
|
|
// Notes:
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
|
|
STDMETHODIMP CFillLockBytes::FillAt(ULARGE_INTEGER ulOffset,
|
|
void const *pv,
|
|
ULONG cb,
|
|
ULONG *pcbWritten)
|
|
{
|
|
astgDebugOut((DEB_ITRACE, "In CFillLockBytes::FillAt:%p()\n", this));
|
|
astgDebugOut((DEB_ITRACE, "Out CFillLockBytes::FillAt\n"));
|
|
return STG_E_UNIMPLEMENTEDFUNCTION;
|
|
}
|
|
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Member: CFillLockBytes::SetFillSize, public
|
|
//
|
|
// Synopsis:
|
|
//
|
|
// Arguments:
|
|
//
|
|
// Returns: Appropriate status code
|
|
//
|
|
// Modifies:
|
|
//
|
|
// History: 28-Dec-95 PhilipLa Created
|
|
//
|
|
// Notes:
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
|
|
STDMETHODIMP CFillLockBytes::SetFillSize(ULARGE_INTEGER ulSize)
|
|
{
|
|
SCODE sc;
|
|
astgDebugOut((DEB_ITRACE, "In CFillLockBytes::SetFillSize:%p()\n", this));
|
|
if (_dwTerminate == TERMINATED_ABNORMAL)
|
|
{
|
|
sc = STG_E_INCOMPLETE;
|
|
}
|
|
else
|
|
{
|
|
sc = _pilb->SetSize(ulSize);
|
|
}
|
|
astgDebugOut((DEB_ITRACE, "Out CFillLockBytes::SetFillSize\n"));
|
|
return sc;
|
|
}
|
|
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Member: CFillLockBytes::Terminate, public
|
|
//
|
|
// Synopsis:
|
|
//
|
|
// Arguments:
|
|
//
|
|
// Returns: Appropriate status code
|
|
//
|
|
// Modifies:
|
|
//
|
|
// History: 28-Dec-95 PhilipLa Created
|
|
//
|
|
// Notes:
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
|
|
STDMETHODIMP CFillLockBytes::Terminate(BOOL bCanceled)
|
|
{
|
|
astgDebugOut((DEB_ITRACE, "In CFillLockBytes::Terminate:%p()\n", this));
|
|
_dwTerminate = (bCanceled) ? TERMINATED_ABNORMAL : TERMINATED_NORMAL;
|
|
#ifdef ASYNC
|
|
if (_ppc)
|
|
{
|
|
HANDLE hEvent = _ppc->GetNotificationEvent();
|
|
if (!SetEvent(hEvent))
|
|
{
|
|
return Win32ErrorToScode(GetLastError());
|
|
}
|
|
}
|
|
#else
|
|
if (!SetEvent(_hNotifyEvent))
|
|
{
|
|
return Win32ErrorToScode(GetLastError());
|
|
}
|
|
#endif
|
|
astgDebugOut((DEB_ITRACE, "Out CFillLockBytes::Terminate\n"));
|
|
return S_OK;
|
|
}
|
|
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Member: CFillLockBytes::GetFailureInfo, public
|
|
//
|
|
// Synopsis:
|
|
//
|
|
// Arguments:
|
|
//
|
|
// Returns: Appropriate status code
|
|
//
|
|
// Modifies:
|
|
//
|
|
// History: 11-Jan-96 PhilipLa Created
|
|
//
|
|
// Notes:
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
|
|
STDMETHODIMP CFillLockBytes::GetFailureInfo(ULONG *pulWaterMark,
|
|
ULONG *pulFailurePoint)
|
|
{
|
|
astgDebugOut((DEB_ITRACE,
|
|
"In CFillLockBytes::GetFailureInfo:%p()\n", this));
|
|
*pulWaterMark = _ulHighWater;
|
|
*pulFailurePoint = _ulFailurePoint;
|
|
astgDebugOut((DEB_ITRACE, "Out CFillLockBytes::GetFailureInfo\n"));
|
|
return S_OK;
|
|
}
|
|
|
|
#ifndef ASYNC
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Member: CFillLockBytes::GetNotificationEvent, public
|
|
//
|
|
// Synopsis:
|
|
//
|
|
// Arguments:
|
|
//
|
|
// Returns: Appropriate status code
|
|
//
|
|
// Modifies:
|
|
//
|
|
// History: 11-Jan-96 PhilipLa Created
|
|
//
|
|
// Notes:
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
|
|
HANDLE CFillLockBytes::GetNotificationEvent(void)
|
|
{
|
|
astgDebugOut((DEB_ITRACE, "In CFillLockBytes::GetNotificationEvent:%p()\n", this));
|
|
astgDebugOut((DEB_ITRACE, "Out CFillLockBytes::GetNotificationEvent\n"));
|
|
return _hNotifyEvent;
|
|
}
|
|
#endif
|
|
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Member: CFillLockBytes::GetTerminationStatus, public
|
|
//
|
|
// Synopsis:
|
|
//
|
|
// Arguments:
|
|
//
|
|
// Returns: Appropriate status code
|
|
//
|
|
// Modifies:
|
|
//
|
|
// History: 11-Jan-96 PhilipLa Created
|
|
//
|
|
// Notes:
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
|
|
STDMETHODIMP CFillLockBytes::GetTerminationStatus(DWORD *pdwFlags)
|
|
{
|
|
astgDebugOut((DEB_ITRACE,
|
|
"In CFillLockBytes::GetTerminationStatus:%p()\n", this));
|
|
*pdwFlags = _dwTerminate;
|
|
astgDebugOut((DEB_ITRACE, "Out CFillLockBytes::GetTerminationStatus\n"));
|
|
return S_OK;
|
|
}
|
|
|
|
|
|
|
|
SCODE CFillLockBytes::SetFailureInfo(ULONG ulWaterMark,
|
|
ULONG ulFailurePoint)
|
|
{
|
|
astgDebugOut((DEB_ITRACE, "In CFillLockBytes::SetFailureInfo:%p()\n", this));
|
|
_ulHighWater =ulWaterMark;
|
|
_ulFailurePoint = ulFailurePoint ;
|
|
astgDebugOut((DEB_ITRACE, "Out CFillLockBytes::SetFailureInfo\n"));
|
|
return S_OK;
|
|
}
|
|
#if DBG==1
|
|
void CFillLockBytes::PulseFillEvent()
|
|
{
|
|
#ifdef ASYNC
|
|
if (_ppc)
|
|
{
|
|
HANDLE hEvent = _ppc->GetNotificationEvent();
|
|
PulseEvent(hEvent);
|
|
}
|
|
#else
|
|
PulseEvent(_hNotifyEvent);
|
|
#endif
|
|
}
|
|
|
|
#endif
|
|
|