547 lines
16 KiB
C++
547 lines
16 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 - 1994.
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//
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// File: thkmgr.cxx
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//
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// Contents: Thunk manager initialization
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// IUnknown transition functions
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//
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// History: 5-18-94 JohannP (Johann Posch) Created
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//
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//----------------------------------------------------------------------------
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#include "headers.cxx"
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#pragma hdrstop
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//+---------------------------------------------------------------------------
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//
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// Function: ThkMgrInitialize
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//
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// Synopsis: Creates a new thunkmanager and set it for given thread
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//
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// Arguments: [dw1]
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// [dw2]
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// [dw3]
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//
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// Returns: HRESULT
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//
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// History: 5-18-94 JohannP (Johann Posch) Created
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//
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// Notes: Called from CoInitialize
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//
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//----------------------------------------------------------------------------
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STDAPI ThkMgrInitialize(DWORD dw1, DWORD dw2, DWORD dw3)
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{
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CThkMgr *pcthkmgr = NULL;
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thkDebugOut((DEB_THUNKMGR, "In ThkMgrInitialize()\n"));
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//
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// If we are already initialized, do nothing.
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//
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if (TlsGetValue(dwTlsThkIndex) != NULL)
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{
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thkDebugOut((DEB_THUNKMGR, "OUT ThkMgrInitialize() Already Init\n"));
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return(NOERROR);
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}
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//
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// initialize the Tls storage
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//
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if ( NOERROR != TlsThkInitialize())
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{
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thkDebugOut((DEB_ERROR, "TlsThkInitialize failed"));
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return E_OUTOFMEMORY;
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}
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thkAssert(TlsThkGetThkMgr() == NULL);
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pcthkmgr = CThkMgr::Create();
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TlsThkSetThkMgr(pcthkmgr);
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thkDebugOut((DEB_THUNKMGR, "Out ThkMgrInitialize() => %p\n",
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pcthkmgr));
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return (pcthkmgr == NULL) ? E_OUTOFMEMORY : NOERROR;
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}
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//+---------------------------------------------------------------------------
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//
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// Function: ThkMgrUninitialize
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//
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// Synopsis: deletes the thunkmanager and removes it from thread data
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// tls data are removed as well
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//
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// Arguments: [dw1]
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// [dw2]
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// [dw3]
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//
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// History: 5-18-94 JohannP (Johann Posch) Created
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//
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// Notes: Called during CoUninitialize
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//
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//----------------------------------------------------------------------------
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STDAPI_(void) ThkMgrUninitialize(DWORD dw1, DWORD dw2, DWORD dw3)
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{
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thkDebugOut((DEB_THUNKMGR, "In ThkMgrUninitialize()\n"));
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thkAssert(TlsGetValue(dwTlsThkIndex) != NULL);
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CThkMgr *pcthkmgr = (CThkMgr*)TlsThkGetThkMgr();
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if (pcthkmgr != NULL)
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{
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// Note: the thunkmanger gets removed from tlsthk
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delete pcthkmgr;
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}
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// If we weren't called from 16-bit code then it's not safe to reset
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// the 16-bit stack allocator here because we may be doing this
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// in thread cleanup and it may not be safe to call back into
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// 16-bit code
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TlsThkGetStack32()->Reset();
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// uninitialize the tls data for this apartment
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TlsThkUninitialize();
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thkDebugOut((DEB_THUNKMGR, "Out ThkMgrUninitialize()\n"));
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}
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//+---------------------------------------------------------------------------
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//
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// Function: IUnknownObj32
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//
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// Synopsis: Entry point from 16bit for IUnknown methods
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//
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// Arguments: [vpvThis16] -- Proxy object
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// [wMethod] -- IUnknown method
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// [vpvData] -- Call data
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//
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// Returns: Call result, pdata contains out data for particular call
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//
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// History: 5-18-94 JohannP (Johann Posch) Created
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//
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//----------------------------------------------------------------------------
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STDAPI_(DWORD) IUnknownObj32(VPVOID vpvThis16, DWORD wMethod, VPVOID vpvData)
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{
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DWORD dwRet;
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LONG vpvInterface;
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IID iid;
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if (TlsThkGetData() == NULL)
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{
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thkDebugOut((DEB_WARN, "WARNING: IUnknownObj32 call refused\n"));
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if (wMethod == SMI_QUERYINTERFACE)
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{
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return (DWORD)E_FAIL;
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}
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else
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{
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return 0;
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}
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}
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// Note: at this point we should always get a thunkmanager
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CThkMgr *pcthkmgr = (CThkMgr*)TlsThkGetThkMgr();
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thkAssert(pcthkmgr != NULL && "ThunkManager was not initialized");
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thkAssert(vpvThis16 != 0 && "IUnknownObj32: invalid pointer." );
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thkAssert(wMethod < SMI_COUNT);
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switch (wMethod)
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{
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case SMI_QUERYINTERFACE:
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thkAssert(vpvData != NULL &&
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"IUnknownObj32.QueryInterface without IID");
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// Copy the 16-bit IID into 32-bit memory for the real call
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iid = *FIXVDMPTR(vpvData, IID);
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RELVDMPTR(vpvData);
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thkDebugOut((DEB_UNKNOWN,
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"%sIn QueryInterface1632(%p, %s)\n",
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NestingLevelString(), vpvThis16,
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IidOrInterfaceString(&iid)));
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dwRet = pcthkmgr->QueryInterfaceProxy1632(vpvThis16, iid,
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(void **)&vpvInterface);
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// Translate the 32-bit HRESULT to a 16-bit HRESULT
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dwRet = (DWORD)TransformHRESULT_3216((HRESULT)dwRet);
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// Pass the return interface pointer back through the IID
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// memory. We re-resolve the data pointer since nested
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// calls may have occurred
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(FIXVDMPTR(vpvData, IID))->Data1 = vpvInterface;
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RELVDMPTR(vpvData);
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thkDebugOut((DEB_UNKNOWN,
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"%sOut QueryInterface1632(%p) => %p, 0x%08lX\n",
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NestingLevelString(), vpvThis16, vpvInterface, dwRet));
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break;
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case SMI_ADDREF:
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thkDebugOut((DEB_UNKNOWN, "%sIn AddRef1632(%p)\n",
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NestingLevelString(), vpvThis16));
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dwRet = pcthkmgr->AddRefProxy1632(vpvThis16);
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thkDebugOut((DEB_UNKNOWN, "%sOut AddRef1632(%p) => %d\n",
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NestingLevelString(), vpvThis16, dwRet));
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break;
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case SMI_RELEASE:
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thkDebugOut((DEB_UNKNOWN, "%sIn Release1632(%p)\n",
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NestingLevelString(), vpvThis16));
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dwRet = pcthkmgr->ReleaseProxy1632(vpvThis16);
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thkDebugOut((DEB_UNKNOWN, "%sOut Release1632(%p) => %d\n",
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NestingLevelString(), vpvThis16, dwRet));
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break;
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}
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return dwRet;
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}
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//+---------------------------------------------------------------------------
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//
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// Function: QueryInterfaceProxy3216
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//
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// Synopsis: call QueryInterface on a 32 bit proxy
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//
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// Arguments: [pto] -- This pointer (a 32->16 proxy)
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// [refiid] -- Interface queried for
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// [ppv] -- Interface return
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//
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// Returns: HRESULT
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//
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// History: 5-18-94 JohannP (Johann Posch) Created
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//
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//----------------------------------------------------------------------------
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SCODE QueryInterfaceProxy3216(THUNK3216OBJ *pto, REFIID refiid, LPVOID *ppv)
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{
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HRESULT hrRet;
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thkDebugOut((DEB_UNKNOWN, "%sIn QueryInterface3216(%p, %s)\n",
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NestingLevelString(), pto,
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IidOrInterfaceString(&refiid)));
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DebugIncrementNestingLevel();
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if (TlsThkGetData() == NULL)
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{
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thkDebugOut((DEB_WARN, "WARNING: QIProxy3216 call refused\n"));
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return E_FAIL;
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}
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CThkMgr *pcthkmgr = TlsThkGetThkMgr();
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thkAssert(pcthkmgr != NULL && "ThunkManager was not initialized");
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if ( pto->grfFlags & PROXYFLAG_CLEANEDUP )
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{
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thkDebugOut((DEB_WARN,
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"QueryInterfaceProxy3216: Attempt to QI "
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"on cleaned-up proxy %08lX for 16-bit object %08lX %s\n",
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pto, pto->vpvThis16,
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IidIdxString(IID_IIDIDX(&refiid)) ));
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*ppv = NULL;
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return E_FAIL;
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}
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hrRet = pcthkmgr->QueryInterfaceProxy3216(pto, refiid, ppv);
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//
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// If the QI for IUnknown failed, then return the current this
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// pointer as the IUnknown. Watermark 1.02 appears to not support
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// IUnknown in its IOleInPlaceActiveObject interface, which causes
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// CoMarshalInterface to fail. The reason it used to work is the
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// original 16-bit DLL's would just use the provided pointer as
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// the punk if IUnknown wasn't supported. The following lines of
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// code emulate that behaviour.
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//
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if ((hrRet == E_NOINTERFACE) && IsEqualIID(refiid,IID_IUnknown))
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{
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thkDebugOut((DEB_UNKNOWN,
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"%s Object %p didn't support QI(IID_IUnknown): Faking it\n",
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NestingLevelString(), pto));
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((IUnknown *)pto)->AddRef();
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*ppv = pto;
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hrRet = S_OK;
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}
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DebugDecrementNestingLevel();
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thkDebugOut((DEB_UNKNOWN,
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"%sOut QueryInterface3216(%p) => %p, ret:0x%08lX\n",
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NestingLevelString(), pto, *ppv, hrRet));
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return hrRet;
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}
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//+---------------------------------------------------------------------------
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//
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// Function: AddRefProxy3216
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//
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// Synopsis: call addref on an 16 bit object
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//
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// Arguments: [pto] -- This pointer (a 32->16 proxy)
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//
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// Returns: New refcount
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//
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// History: 5-18-94 JohannP (Johann Posch) Created
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//
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//----------------------------------------------------------------------------
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DWORD AddRefProxy3216(THUNK3216OBJ *pto)
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{
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DWORD dwRet;
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thkDebugOut((DEB_UNKNOWN, "%sIn AddRef3216(%p)\n",
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NestingLevelString(), pto));
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DebugIncrementNestingLevel();
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if (TlsThkGetData() == NULL)
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{
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thkDebugOut((DEB_WARN, "WARNING: AddRefProxy3216 call refused\n"));
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return 0;
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}
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CThkMgr *pcthkmgr = TlsThkGetThkMgr();
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thkAssert(pcthkmgr != NULL && "ThunkManager was not initialized");
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if ( pto->grfFlags & PROXYFLAG_CLEANEDUP )
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{
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thkDebugOut((DEB_WARN,
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"AddRefProxy3216: Attempt to AddRef "
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"on cleaned-up proxy %08lX for 16-bit object %08lX\n",
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pto, pto->vpvThis16));
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return 0;
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}
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dwRet = pcthkmgr->AddRefProxy3216(pto);
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DebugDecrementNestingLevel();
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thkDebugOut((DEB_UNKNOWN, "%sOut AddRef3216(%p) => %ld\n",
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NestingLevelString(), pto, dwRet));
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return dwRet;
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}
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//+---------------------------------------------------------------------------
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//
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// Function: ReleaseProxy3216
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//
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// Synopsis: Release implementation for 32->16 proxies
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//
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// Arguments: [pto] -- This pointer (a 32->16 proxy)
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//
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// Returns: New refcount
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//
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// History: 5-18-94 JohannP (Johann Posch) Created
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//
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//----------------------------------------------------------------------------
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DWORD ReleaseProxy3216(THUNK3216OBJ *pto)
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{
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DWORD dwRet;
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thkDebugOut((DEB_UNKNOWN, "%sIn Release3216(%p)\n",
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NestingLevelString(), pto));
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DebugIncrementNestingLevel();
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if (TlsThkGetData() == NULL)
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{
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thkDebugOut((DEB_WARN, "WARNING: ReleaseProxy3216 call refused\n"));
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return 0;
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}
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CThkMgr *pcthkmgr = TlsThkGetThkMgr();
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thkAssert(pcthkmgr != NULL && "ThunkManager was not initialized");
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if ( pto->grfFlags & PROXYFLAG_CLEANEDUP )
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{
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thkDebugOut((DEB_WARN,
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"ReleaseProxy3216: Attempt to Release "
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"on cleaned-up proxy %08lX for 16-bit object %08lX\n",
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pto, pto->vpvThis16));
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return 0;
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}
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dwRet = pcthkmgr->ReleaseProxy3216(pto);
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DebugDecrementNestingLevel();
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thkDebugOut((DEB_UNKNOWN, "%sOut Release3216(%p) => %ld\n",
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NestingLevelString(), pto, dwRet));
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return dwRet;
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}
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//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Function: QueryInterfaceOnObj16
|
||
|
|
//
|
||
|
|
// Synopsis: call QueryInterface on an 16 bit object
|
||
|
|
//
|
||
|
|
// Arguments: [vpvThis16] -- 16-bit this pointer
|
||
|
|
// [refiid] -- IID
|
||
|
|
// [ppv] -- Interface return
|
||
|
|
//
|
||
|
|
// Returns: HRESULT
|
||
|
|
//
|
||
|
|
// History: 5-18-94 JohannP (Johann Posch) Created
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
struct QIARGS
|
||
|
|
{
|
||
|
|
IID iid;
|
||
|
|
void *pvObject;
|
||
|
|
};
|
||
|
|
|
||
|
|
HRESULT QueryInterfaceOnObj16(VPVOID vpvThis16, REFIID refiid, LPVOID *ppv)
|
||
|
|
{
|
||
|
|
HRESULT hrRet;
|
||
|
|
VPVOID vpvArgs;
|
||
|
|
QIARGS UNALIGNED *pqa;
|
||
|
|
BYTE bArgs32[WCB16_MAX_CBARGS];
|
||
|
|
|
||
|
|
thkDebugOut((DEB_THUNKMGR, "%sIn QueryInterfaceOnObj16(%p, %s)\n",
|
||
|
|
NestingLevelString(), vpvThis16,
|
||
|
|
IidOrInterfaceString(&refiid)));
|
||
|
|
DebugIncrementNestingLevel();
|
||
|
|
|
||
|
|
thkAssert(WCB16_MAX_CBARGS >= 3*sizeof(DWORD));
|
||
|
|
thkAssert(vpvThis16 != 0 && "QueryInterfaceOnObj16: invalid pointer.");
|
||
|
|
|
||
|
|
// Allocate space for the sixteen bit arguments memory
|
||
|
|
vpvArgs = STACKALLOC16(sizeof(QIARGS));
|
||
|
|
if (vpvArgs == 0)
|
||
|
|
{
|
||
|
|
return E_OUTOFMEMORY;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Fill in the in-param memory
|
||
|
|
pqa = FIXVDMPTR(vpvArgs, QIARGS);
|
||
|
|
pqa->iid = refiid;
|
||
|
|
|
||
|
|
// Set up the 16-bit stack in pascal order
|
||
|
|
*(VPVOID *)(bArgs32+0*sizeof(VPVOID)) = vpvArgs+
|
||
|
|
FIELD_OFFSET(QIARGS, pvObject);
|
||
|
|
*(VPVOID *)(bArgs32+1*sizeof(VPVOID)) = vpvArgs;
|
||
|
|
*(VPVOID *)(bArgs32+2*sizeof(VPVOID)) = vpvThis16;
|
||
|
|
|
||
|
|
RELVDMPTR(vpvArgs);
|
||
|
|
|
||
|
|
// Call to 16-bit stub
|
||
|
|
if (!CallbackTo16Ex(gdata16Data.fnQueryInterface16, WCB16_PASCAL,
|
||
|
|
3*sizeof(DWORD), bArgs32, (DWORD *)&hrRet))
|
||
|
|
{
|
||
|
|
hrRet = E_UNEXPECTED;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Transform the 16-bit HRESULT to a 32-bit HRESULT
|
||
|
|
hrRet = TransformHRESULT_1632(hrRet);
|
||
|
|
|
||
|
|
// Copy back out-param memory
|
||
|
|
pqa = FIXVDMPTR(vpvArgs, QIARGS);
|
||
|
|
*ppv = pqa->pvObject;
|
||
|
|
RELVDMPTR(vpvArgs);
|
||
|
|
|
||
|
|
STACKFREE16(vpvArgs, sizeof(QIARGS));
|
||
|
|
|
||
|
|
DebugDecrementNestingLevel();
|
||
|
|
thkDebugOut((DEB_THUNKMGR,
|
||
|
|
"%sOut QueryInterfaceOnObj16(%p) => %p, ret:0x%08lX\n",
|
||
|
|
NestingLevelString(), vpvThis16, *ppv, hrRet));
|
||
|
|
|
||
|
|
return hrRet;
|
||
|
|
}
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Function: AddRefOnObj16
|
||
|
|
//
|
||
|
|
// Synopsis: calls addref on an 16 bit object
|
||
|
|
//
|
||
|
|
// Arguments: [vpvThis16] -- 16-bit this pointer
|
||
|
|
//
|
||
|
|
// Returns: New ref count
|
||
|
|
//
|
||
|
|
// History: 5-18-94 JohannP (Johann Posch) Created
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
#if DBG == 1
|
||
|
|
DWORD AddRefOnObj16(VPVOID vpvThis16)
|
||
|
|
{
|
||
|
|
DWORD dwRet;
|
||
|
|
|
||
|
|
thkDebugOut((DEB_THUNKMGR, "%sIn AddRefOnObj16(%p)\n",
|
||
|
|
NestingLevelString(), vpvThis16));
|
||
|
|
DebugIncrementNestingLevel();
|
||
|
|
|
||
|
|
dwRet = CallbackTo16(gdata16Data.fnAddRef16, vpvThis16);
|
||
|
|
|
||
|
|
DebugDecrementNestingLevel();
|
||
|
|
thkDebugOut((DEB_THUNKMGR, "%sOut AddRefOnObj16(%p) => %ld\n",
|
||
|
|
NestingLevelString(), vpvThis16, dwRet));
|
||
|
|
|
||
|
|
return dwRet;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Function: ReleaseOnObj16
|
||
|
|
//
|
||
|
|
// Synopsis: Release a 16-bit object
|
||
|
|
//
|
||
|
|
// Arguments: [vpvThis16] -- 16-bit this pointer
|
||
|
|
//
|
||
|
|
// Returns: New ref count
|
||
|
|
//
|
||
|
|
// History: 5-18-94 JohannP (Johann Posch) Created
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
#if DBG == 1
|
||
|
|
DWORD ReleaseOnObj16(VPVOID vpvThis16)
|
||
|
|
{
|
||
|
|
DWORD dwRet;
|
||
|
|
|
||
|
|
thkDebugOut((DEB_THUNKMGR, "%sIn ReleaseOnObj16(%p)\n",
|
||
|
|
NestingLevelString(), vpvThis16));
|
||
|
|
DebugIncrementNestingLevel();
|
||
|
|
|
||
|
|
dwRet = CallbackTo16(gdata16Data.fnRelease16, vpvThis16);
|
||
|
|
|
||
|
|
#if DBG==1
|
||
|
|
if(dwRet==0 && TlsThkGetThkMgr()->GetThkState()==THKSTATE_VERIFY16INPARAM) {
|
||
|
|
thkDebugOut((DEB_WARN, "WARINING: 16-bit 0x%x IN parameter with zero "
|
||
|
|
"ref count\n", vpvThis16));
|
||
|
|
|
||
|
|
if(thkInfoLevel & DEB_DBGFAIL)
|
||
|
|
thkAssert(!"Wish to Debug");
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
DebugDecrementNestingLevel();
|
||
|
|
thkDebugOut((DEB_THUNKMGR, "%sOut ReleaseOnObj16(%p) => %ld\n",
|
||
|
|
NestingLevelString(), vpvThis16, dwRet));
|
||
|
|
|
||
|
|
return dwRet;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if DBG == 1
|
||
|
|
void DebugDump()
|
||
|
|
{
|
||
|
|
CThkMgr *pcthkmgr = (CThkMgr*)TlsThkGetThkMgr();
|
||
|
|
thkAssert(pcthkmgr != NULL && "ThunkManager was not initialized");
|
||
|
|
pcthkmgr->DebugDump3216();
|
||
|
|
pcthkmgr->DebugDump1632();
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|