617 lines
16 KiB
C++
617 lines
16 KiB
C++
//+---------------------------------------------------------------------------
|
|
//
|
|
// Microsoft Windows
|
|
// Copyright (C) Microsoft Corporation, 1992 - 1994.
|
|
//
|
|
// File: olethk32.cxx
|
|
//
|
|
// Contents: Main routines for olethk32.dll
|
|
//
|
|
// History: 22-Feb-94 DrewB Created
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
|
|
#include "headers.cxx"
|
|
#include <userapis.h>
|
|
#pragma hdrstop
|
|
|
|
#include <thkmgr.hxx>
|
|
#include <stdio.h>
|
|
|
|
|
|
DECLARE_INFOLEVEL(thk);
|
|
DECLARE_INFOLEVEL(Stack);
|
|
|
|
DATA16 gdata16Data;
|
|
|
|
#if DBG == 1
|
|
BOOL fSaveProxy = FALSE; // Used to find apps who call dead proxies
|
|
BOOL fStabilizeProxies = TRUE; // Used to easily disable stabilization
|
|
BOOL fZapProxy = FALSE; // Used to zap entries in freelist
|
|
|
|
#ifdef _CHICAGO_
|
|
BOOL fSSOn = TRUE;
|
|
#endif // _CHICAGO_
|
|
|
|
#if defined(__cplusplus)
|
|
extern "C"
|
|
{
|
|
#endif
|
|
void CallOutputFunctions(const char *buffer);
|
|
#if defined(__cplusplus)
|
|
}
|
|
#endif
|
|
|
|
#endif
|
|
|
|
CLIPFORMAT g_cfLinkSourceDescriptor, g_cfObjectDescriptor;
|
|
|
|
BYTE g_abLeadTable[256];
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Function: DoThreadDetach
|
|
//
|
|
// Synopsis: When a thread is detaching, cleanup for it.
|
|
//
|
|
// Effects: This is called during both DLL_THREAD_DETACH, and
|
|
// DLL_PROCESS_DETACH.
|
|
//
|
|
// Arguments: (none)
|
|
//
|
|
// History: 3-18-95 kevinro Created
|
|
//
|
|
// Notes:
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
void
|
|
DoThreadDetach()
|
|
{
|
|
thkDebugOut((DEB_DLL,"_IN DoThreadDetach\n"));
|
|
//
|
|
// If there is thunk data, clean it up now.
|
|
//
|
|
if (TlsGetValue(dwTlsThkIndex) != NULL)
|
|
{
|
|
thkDebugOut((DEB_DLL,"DoThreadDetach calling ThkMgrUninitialize\n"));
|
|
ThkMgrUninitialize(0, 0, 0);
|
|
}
|
|
thkDebugOut((DEB_DLL,"OUT DoThreadDetach\n"));
|
|
}
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Function: LibMain, public
|
|
//
|
|
// Synopsis: DLL initialization entry point
|
|
//
|
|
// History: 23-Feb-94 DrewB Created
|
|
//
|
|
// Notes:
|
|
//
|
|
// (KevinRo 19-Mar-95)
|
|
//
|
|
// Caution needs to be exercised during cleanup. OLE32.DLL has
|
|
// a pointer that we pass in during CoInitializeWOW. This pointer
|
|
// is used to call back into OLETHK32 for cleanup purposes, as well as
|
|
// accessing functions exposed by the 16-bit side. It is important that
|
|
// when OLETHK32 unloads, the pointer in OLE32 is marked as invalid.
|
|
// There is a call during the DLL_PROCESS_DETACH below that causes
|
|
// OLE32 to invalidate its pointer.
|
|
//
|
|
// In addition, the last thread attached to a DLL will not generate
|
|
// a DLL_THREAD_DETACH. Instead, it generates a DLL_PROCESS_DETACH. This
|
|
// means that DLL_PROCESS_DETACH should perform all the steps that
|
|
// DLL_THREAD_DETACH does in addition to whatever DLL_PROCESS_DETACH work
|
|
// that needs to be done.
|
|
//
|
|
// Lastly, OLETHK32.DLL is statically linked to OLE32.DLL. This means
|
|
// that OLETHK32.DLL's DLL_PROCESS_DETACH will be called before OLE32's.
|
|
// That is why it is safe for us to call the OLE32 entry point during
|
|
// DLL_PROCESS_DETACH
|
|
//----------------------------------------------------------------------------
|
|
|
|
extern "C" BOOL _CRTAPI1 LibMain(HANDLE hDll,
|
|
DWORD dwReason,
|
|
LPVOID lpReserved)
|
|
{
|
|
switch( dwReason )
|
|
{
|
|
case DLL_PROCESS_ATTACH:
|
|
#if DBG == 1
|
|
char achInfoLevel[80];
|
|
|
|
if (GetProfileStringA("olethk32", "InfoLevel", "3", achInfoLevel,
|
|
sizeof(achInfoLevel)) > 0)
|
|
{
|
|
thkInfoLevel = strtol (achInfoLevel, NULL, 0);
|
|
}
|
|
#endif
|
|
thkDebugOut((DEB_DLL,"_IN DLL_PROCESS_ATTACH\n"));
|
|
|
|
//
|
|
// Save a slot in the thread local storage for our PSTACK (pseudo-
|
|
// stack) pointer.
|
|
//
|
|
|
|
if (!TlsThkAlloc())
|
|
{
|
|
thkDebugOut((DEB_WARN, "TlsThkAlloc failed\n"));
|
|
return FALSE;
|
|
}
|
|
thkDebugOut((DEB_DLL,"OUT DLL_PROCESS_ATTACH\n"));
|
|
break;
|
|
|
|
case DLL_THREAD_ATTACH:
|
|
thkDebugOut((DEB_DLL,"_IN DLL_THREAD_ATTACH\n"));
|
|
TlsSetValue(dwTlsThkIndex, NULL);
|
|
thkDebugOut((DEB_DLL,"OUT DLL_THREAD_ATTACH\n"));
|
|
break;
|
|
|
|
case DLL_THREAD_DETACH:
|
|
thkDebugOut((DEB_DLL,"_IN DLL_THREAD_DETACH\n"));
|
|
|
|
//
|
|
// Call OLE32.DLL and tell it to cleanup for this thread. This will
|
|
// not mark OLE32's ptr invalid since this is only a thread detach
|
|
// and not a process detach. This is a private API between OLE32 and
|
|
// OLETHK32.
|
|
//
|
|
thkDebugOut((DEB_DLL,"Calling Unload WOW for Thread Detach\n"));
|
|
|
|
CoUnloadingWOW(FALSE);
|
|
|
|
//
|
|
// When the thread for this task goes away, we need to clean out
|
|
// the thunk manager.
|
|
//
|
|
|
|
DoThreadDetach();
|
|
|
|
thkDebugOut((DEB_DLL,"OUT DLL_THREAD_DETACH\n"));
|
|
break;
|
|
|
|
case DLL_PROCESS_DETACH:
|
|
thkDebugOut((DEB_DLL,
|
|
"IN DLL_PROCESS_DETACH: %s\n",
|
|
lpReserved?"Process Exit":"Dll Unload"));
|
|
|
|
//
|
|
// The last threads cleanup needs to be done here.
|
|
//
|
|
if (lpReserved == NULL)
|
|
{
|
|
//
|
|
// Call OLE32.DLL and tell it to cleanup for this thread, and to
|
|
// never call us again, since we are going away. This is a private
|
|
// API between OLE32 and OLETHK32. This call will mark OLE32's
|
|
// private pointer to us as invalid.
|
|
//
|
|
thkDebugOut((DEB_DLL,"Calling Unload WOW\n"));
|
|
|
|
CoUnloadingWOW(TRUE);
|
|
|
|
//
|
|
// lpReserved being NULL means this cleanup is due to
|
|
// a FreeLibrary. If it was due to process exit, there
|
|
// is no way for us to determine the state of the data
|
|
// structures in the system. Other threads may have been
|
|
// right smack in the middle of taking apart data structures.
|
|
//
|
|
//
|
|
// Chicago unloads DLL's differently than NT. On Chicago, the
|
|
// 32-bit side cleans up first, plus resources allocated on
|
|
// the 32-bit side are released when the 16-bit process goes
|
|
// away. On NT, the 16-bit process is treated like a thread,
|
|
// so we have to cleanup.
|
|
//
|
|
|
|
#ifndef _CHICAGO_
|
|
DoThreadDetach();
|
|
#endif
|
|
//
|
|
// Only cleanup the memory if the process is not going away.
|
|
// On Windows NT, there are cases when the NTVDM needs to be
|
|
// blown away. We shouldn't be calling back to the 16-bit
|
|
// side in this case. Therefore, we explicitly call free here
|
|
// instead of putting it in the destructor.
|
|
//
|
|
flFreeList32.FreeMemoryBlocks();
|
|
flHolderFreeList.FreeMemoryBlocks();
|
|
flRequestFreeList.FreeMemoryBlocks();
|
|
}
|
|
|
|
TlsThkFree();
|
|
|
|
//
|
|
// Call to cleanup 16-bit memory if we are running on Win95.
|
|
// This should free up the 16-bit memory associated with this
|
|
// process. This is called in IntOpUninitialize on NT, since it
|
|
// needs to be called before the 16-bit side goes away.
|
|
//
|
|
|
|
#ifdef _CHICAGO_
|
|
flFreeList16.FreeMemoryBlocks();
|
|
#endif
|
|
|
|
|
|
thkDebugOut((DEB_DLL,"OUT DLL_PROCESS_DETACH\n"));
|
|
break;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Function: IntOpInitialize, public
|
|
//
|
|
// Synopsis: Initializes the 32-bit interoperability code
|
|
//
|
|
// Arguments: [lpdata16] - 16-bit call data
|
|
// [dw1] - Ignored
|
|
// [dw2] - Ignored
|
|
//
|
|
// Returns: Appropriate status code
|
|
//
|
|
// History: 22-Feb-94 JohannP Created
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
|
|
STDAPI IntOpInitialize(LPDATA16 lpdata16, DWORD dw1, DWORD dw2)
|
|
{
|
|
int i;
|
|
|
|
thkDebugOut((DEB_ITRACE | DEB_THUNKMGR, "_IN IntOpInitialize (%08lX)\n",
|
|
lpdata16));
|
|
|
|
thkAssert((THOP_LASTOP & ~THOP_OPMASK) == 0);
|
|
|
|
#if DBG == 1
|
|
char achInfoLevel[80];
|
|
#ifdef _CHICAGO_
|
|
if (GetProfileStringA("CairOLE InfoLevels",
|
|
"Stack", "3", achInfoLevel,
|
|
sizeof(achInfoLevel)) > 0)
|
|
{
|
|
StackInfoLevel = strtol (achInfoLevel, NULL, 0);
|
|
}
|
|
|
|
if (GetProfileStringA("CairOLE InfoLevels",
|
|
"StackOn", "3", achInfoLevel,
|
|
sizeof(achInfoLevel)) > 0)
|
|
{
|
|
fSSOn = strtol (achInfoLevel, NULL, 0);
|
|
}
|
|
#endif // _CHICAGO_
|
|
|
|
if (GetProfileIntA("olethk32", "BreakOnInit", FALSE))
|
|
{
|
|
// DebugBreak's in WOW are fatal unless the exception
|
|
// is handled somehow. If a debugger is hooked up,
|
|
// it'll get first crack at the break exception
|
|
// If not, our handler will ignore the exception so
|
|
// execution can continue
|
|
|
|
__try
|
|
{
|
|
DebugBreak();
|
|
}
|
|
__except(EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
}
|
|
}
|
|
|
|
fSaveProxy = GetProfileIntA("olethk32", "SaveProxy", FALSE);
|
|
fZapProxy = GetProfileIntA("olethk32", "ZapProxy", FALSE);
|
|
fStabilizeProxies = GetProfileIntA("olethk32", "Stabilize", TRUE);
|
|
#endif
|
|
|
|
// Copy passed parameter from 16-bit world...
|
|
memcpy( (LPVOID)&gdata16Data, (LPVOID)lpdata16, sizeof( DATA16 ) );
|
|
|
|
#if defined(_CHICAGO_)
|
|
g_cfObjectDescriptor =
|
|
RegisterClipboardFormatA("Object Descriptor");
|
|
g_cfLinkSourceDescriptor =
|
|
RegisterClipboardFormatA("Link Source Descriptor");
|
|
#else
|
|
g_cfObjectDescriptor =
|
|
RegisterClipboardFormat(__TEXT("Object Descriptor"));
|
|
g_cfLinkSourceDescriptor =
|
|
RegisterClipboardFormat(__TEXT("Link Source Descriptor"));
|
|
#endif
|
|
if (g_cfObjectDescriptor == 0 || g_cfLinkSourceDescriptor == 0)
|
|
{
|
|
thkDebugOut((DEB_WARN, "IntOpInitialize: "
|
|
"Unable to register clipboard formats\n"));
|
|
return E_UNEXPECTED;
|
|
}
|
|
|
|
// Create a lookup table for lead-byte-ness
|
|
// so we can avoid calling IsDBCSLeadByte on every character
|
|
// during string validation
|
|
for (i = 0; i < 256; i++)
|
|
{
|
|
g_abLeadTable[i] = (BYTE)IsDBCSLeadByte((BYTE)i);
|
|
}
|
|
|
|
thkDebugOut((DEB_THUNKMGR | DEB_ITRACE, "OUT IntOpInitialize (%08lX)\n",
|
|
lpdata16));
|
|
return NOERROR;
|
|
}
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Function: IntOpUninitialize, public
|
|
//
|
|
// Synopsis: Cleanup initiated by 16-bit DLL unload
|
|
//
|
|
// Arguments: [dw1]
|
|
// [dw2]
|
|
// [dw3]
|
|
//
|
|
// History: 29-Nov-94 DrewB Created
|
|
//
|
|
// Notes: (KevinRo) This routine is only called by compobj.dll. To make
|
|
// things even more interesting, it is only called on Windows/NT. Win95
|
|
// does the flFreeList16.FreeMemoryBlocks during PROCESS_DETACH. Cleanup
|
|
// of the proxies is not neccessary on Win95, since the 16-bit process will
|
|
// clean them up for us.
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
|
|
STDAPI IntOpUninitialize(DWORD dw1, DWORD dw2, DWORD dw3)
|
|
{
|
|
thkDebugOut((DEB_THUNKMGR | DEB_ITRACE, "_IN IntOpUninitialize\n"));
|
|
#ifndef _CHICAGO_
|
|
// Remove all existing proxies since we're going to free the
|
|
// proxy memory in the next step
|
|
if (TlsThkGetData() != NULL)
|
|
{
|
|
CThkMgr *ptm = TlsThkGetThkMgr();
|
|
|
|
if (ptm)
|
|
{
|
|
ptm->RemoveAllProxies();
|
|
}
|
|
}
|
|
|
|
// Clean up the 16-bit freelist at this time because we know
|
|
// that 16-bit code is still active and available for callback
|
|
// If we waited for the freelist destructor to be called, 16-bit
|
|
// code would already be cleaned up and the WOWGlobalFree calls
|
|
// would fail
|
|
flFreeList16.FreeMemoryBlocks();
|
|
|
|
WgtDump();
|
|
#else
|
|
thkAssert(!"IntOpUninitialize called on Win95");
|
|
#endif
|
|
thkDebugOut((DEB_THUNKMGR | DEB_ITRACE, "OUT IntOpUninitialize\n"));
|
|
return 0;
|
|
}
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Function: ConvertHr1632Thunk, public
|
|
//
|
|
// Synopsis: Trivial function to allow calling HRESULT conversion
|
|
// functions from 16-bit
|
|
//
|
|
// Arguments: [hr] - HRESULT to convert
|
|
// [dw1]
|
|
// [dw2]
|
|
//
|
|
// Returns: Appropriate status code
|
|
//
|
|
// History: 26-Sep-94 DrewB Created
|
|
//
|
|
// Notes: Required because 16-bit calls to CallProc32W use three
|
|
// arguments
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
|
|
STDAPI ConvertHr1632Thunk(HRESULT hr, DWORD dw1, DWORD dw2)
|
|
{
|
|
return TransformHRESULT_1632(hr);
|
|
}
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Function: ConvertHr3216Thunk, public
|
|
//
|
|
// Synopsis: Trivial function to allow calling HRESULT conversion
|
|
// functions from 16-bit
|
|
//
|
|
// Arguments: [hr] - HRESULT to convert
|
|
// [dw1]
|
|
// [dw2]
|
|
//
|
|
// Returns: Appropriate status code
|
|
//
|
|
// History: 26-Sep-94 DrewB Created
|
|
//
|
|
// Notes: Required because 16-bit calls to CallProc32W use three
|
|
// arguments
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
|
|
STDAPI ConvertHr3216Thunk(HRESULT hr, DWORD dw1, DWORD dw2)
|
|
{
|
|
return TransformHRESULT_3216(hr);
|
|
}
|
|
|
|
//+-------------------------------------------------------------------------
|
|
//
|
|
// Function: ThkAddAppCompatFlag
|
|
//
|
|
// Synopsis: Takes the given flag and ORs it into the current app
|
|
// compatibility flag set
|
|
//
|
|
// Effects:
|
|
//
|
|
// Arguments: [dwFlag] -- flag to set
|
|
//
|
|
// Requires:
|
|
//
|
|
// Returns: void
|
|
//
|
|
// Signals:
|
|
//
|
|
// Modifies:
|
|
//
|
|
// Algorithm:
|
|
//
|
|
// History: dd-mmm-yy Author Comment
|
|
// 15-Mar-95 alexgo author
|
|
//
|
|
// Notes: This function exists so that 16bit thunk dll's may
|
|
// also set app compatibility flags. olethk32 code typically
|
|
// sets the flags directly via TlsThkSetAppCompatFlags
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
STDAPI_(void) ThkAddAppCompatFlag( DWORD dwFlag )
|
|
{
|
|
DWORD dw;
|
|
|
|
dw = TlsThkGetAppCompatFlags();
|
|
|
|
dw |= dwFlag;
|
|
|
|
TlsThkSetAppCompatFlags(dw);
|
|
}
|
|
|
|
|
|
#if DBG == 1
|
|
static LONG _wgtAllocated = 0;
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Function: WgtAllocLock, public debug
|
|
//
|
|
// Synopsis: Tracking for WOWGlobalAllocLock16
|
|
//
|
|
// History: 29-Nov-94 DrewB Created
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
|
|
VPVOID WgtAllocLock(WORD wFlags, DWORD cb, HMEM16 *ph)
|
|
{
|
|
HMEM16 h;
|
|
VPVOID vpv;
|
|
|
|
vpv = WOWGlobalAllocLock16(wFlags, cb, &h);
|
|
if (vpv != 0)
|
|
{
|
|
#ifdef WGT_TRACK
|
|
if (WOWGlobalLockSize16(h, &cb) != 0)
|
|
{
|
|
_wgtAllocated += cb;
|
|
WOWGlobalUnlock16(h);
|
|
}
|
|
else
|
|
{
|
|
thkDebugOut((DEB_WARN,
|
|
"Unable to get size of allocated block 0x%04lX\n",
|
|
h));
|
|
|
|
// This is a guess at how big a block Win16 will allocate
|
|
_wgtAllocated += (cb+31) & 31;
|
|
}
|
|
#endif
|
|
|
|
if (ph != NULL)
|
|
{
|
|
*ph = h;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
thkDebugOut((DEB_WARN,
|
|
"Unable to allocate %d bytes of 16-bit memory\n",
|
|
cb));
|
|
}
|
|
|
|
return vpv;
|
|
}
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Function: WgtUnlockFree, public
|
|
//
|
|
// Synopsis: Tracking for WOWGlobalUnlockFree16
|
|
//
|
|
// History: 29-Nov-94 DrewB Created
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
|
|
void WgtUnlockFree(VPVOID vpv)
|
|
{
|
|
HMEM16 h;
|
|
DWORD cb;
|
|
|
|
if (vpv == 0)
|
|
{
|
|
thkDebugOut((DEB_WARN, "Attempt to free NULL\n"));
|
|
}
|
|
else
|
|
{
|
|
#ifdef WGT_TRACK
|
|
// BUGBUG - Total hack, incorrect
|
|
h = (HMEM16)(vpv >> 16);
|
|
|
|
if (WOWGlobalLockSize16(h, &cb) != 0)
|
|
{
|
|
_wgtAllocated -= cb;
|
|
WOWGlobalUnlock16(h);
|
|
}
|
|
else
|
|
{
|
|
thkDebugOut((DEB_WARN,
|
|
"Unable to get size of allocated block 0x%04lX\n",
|
|
h));
|
|
}
|
|
#endif
|
|
|
|
WOWGlobalUnlockFree16(vpv);
|
|
}
|
|
}
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Function: WgtDump, public
|
|
//
|
|
// Synopsis: Dumps global tracking information
|
|
//
|
|
// History: 29-Nov-94 DrewB Created
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
|
|
void WgtDump(void)
|
|
{
|
|
if (_wgtAllocated != 0)
|
|
{
|
|
thkDebugOut((DEB_WARN,
|
|
"%d bytes of 16-bit memory currently allocated\n",
|
|
_wgtAllocated));
|
|
}
|
|
}
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Function: ThkCallOutputFunctions, public
|
|
//
|
|
// Synopsis: thunked pass-thru to Ole32 CallOutputFunctions for 16-bit land
|
|
//
|
|
// History: 23-Jan-95 murthys Created
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
|
|
void ThkCallOutputFunctions(const char * buffer, PVOID dummy1, PVOID dummy2)
|
|
{
|
|
CallOutputFunctions(buffer);
|
|
}
|
|
|
|
#endif // DBG == 1
|