154 lines
3.8 KiB
C++
154 lines
3.8 KiB
C++
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//+--------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1992.
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//
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// File: context.cxx
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//
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// Contents: CPerContext implementation
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//
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// History: 14-Aug-92 DrewB Created
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//
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//---------------------------------------------------------------
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#include <exphead.cxx>
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#pragma hdrstop
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#include <lock.hxx>
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//+--------------------------------------------------------------
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//
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// Member: CPerContext::~CPerContext, public
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//
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// Synopsis: Releases internal objects
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//
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// History: 14-Aug-92 DrewB Created
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//
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//---------------------------------------------------------------
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#ifdef CODESEGMENTS
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#pragma code_seg(SEG_CPerContext_1CPerContext)
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#endif
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CPerContext::~CPerContext(void)
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{
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#ifndef ASYNC
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//In the ASYNC case, the Close() happens in the Release method.
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if (_plkbBase != NULL)
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Close();
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#endif
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if (_pgc)
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{
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_pgc->Remove(this);
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_pgc->Release();
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}
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#ifdef ASYNC
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if (_hNotificationEvent != INVALID_HANDLE_VALUE)
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{
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CloseHandle(_hNotificationEvent);
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_hNotificationEvent = INVALID_HANDLE_VALUE;
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}
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#endif
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CPerContext::Close, public
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//
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// Synopsis: Closes the ILockBytes for this context
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//
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// History: 09-Apr-93 DrewB Created
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//
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//----------------------------------------------------------------------------
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#ifdef CODESEGMENTS
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#pragma code_seg(SEG_CPerContext_Close)
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#endif
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void CPerContext::Close(void)
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{
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if (_ulOpenLock && _pgc)
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ReleaseOpen(_plkbOriginal, _pgc->GetOpenLockFlags(), _ulOpenLock);
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_plkbBase->Release();
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_pfstDirty->Release();
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_plkbOriginal->Release();
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_plkbBase = NULL;
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_pfstDirty = NULL;
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_plkbOriginal = NULL;
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#ifdef ASYNC
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if (_pfi != NULL)
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{
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_pfi->Release();
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_pfi = NULL;
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}
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#endif
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}
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#ifdef MULTIHEAP
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//+--------------------------------------------------------------
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//
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// Method: CSafeMultiHeap::CSafeMultiHeap
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//
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// Purpose: allows restoration of heap with methods calling "delete this"
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//
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// History: 29-Nov-95 HenryLee Created
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//
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//---------------------------------------------------------------
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CSafeMultiHeap::CSafeMultiHeap(CPerContext *ppc)
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{
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_pSmAllocator = &g_smAllocator;
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ppc->SetAllocatorState (&_ppcPrev, _pSmAllocator);
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}
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//+--------------------------------------------------------------
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//
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// Method: CSafeMultiHeap::~CSafeMultiHeap
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//
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// Purpose: allows restoration of heap with methods calling "delete this"
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//
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// History: 29-Nov-95 HenryLee Created
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//
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//---------------------------------------------------------------
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CSafeMultiHeap::~CSafeMultiHeap()
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{
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if (_ppcPrev != NULL)
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_ppcPrev->SetAllocatorState(NULL, _pSmAllocator);
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else
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_pSmAllocator->SetState(NULL, NULL, 0, NULL, NULL);
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}
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#endif // MULTIHEAP
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#ifdef ASYNC
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//+---------------------------------------------------------------------------
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//
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// Member: CPerContext::InitNotificationEvent, public
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//
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// Returns: Appropriate status code
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//
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// History: 17-Apr-96 PhilipLa Created
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//
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//----------------------------------------------------------------------------
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SCODE CPerContext::InitNotificationEvent(void)
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{
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TCHAR atcEventName[CONTEXT_MUTEX_NAME_LENGTH];
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olAssert(_pgc != NULL);
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_pgc->GetEventName(atcEventName);
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_hNotificationEvent = CreateEventT(NULL, //No security
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TRUE,
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FALSE,
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atcEventName);
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if (_hNotificationEvent == NULL)
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{
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_hNotificationEvent = INVALID_HANDLE_VALUE;
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return Win32ErrorToScode(GetLastError());
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}
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return S_OK;
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}
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#endif
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