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Added CriticalRegions at locations working with FirstDce.

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svn path=/trunk/; revision=28272
This commit is contained in:
James Tabor 2007-08-10 18:14:38 +00:00
parent be5bce8b2a
commit 63316363bd
1 changed files with 18 additions and 14 deletions
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32
reactos/subsystems/win32/win32k/ntuser/windc.c
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@ -137,10 +137,12 @@ DceAllocDCE(PWINDOW_OBJECT Window OPTIONAL, DCE_TYPE Type)
pDce->hwndCurrent = (Window ? Window->hSelf : NULL);
pDce->hClipRgn = NULL;
pDce->pProcess = NULL;
KeEnterCriticalRegion();
pDce->next = FirstDce;
FirstDce = pDce;
KeLeaveCriticalRegion();
if (Type == DCE_WINDOW_DC) //Window DCE have ownership.
{
DC_SetOwnership(pDce->hDC, PsGetCurrentProcess());
@ -434,7 +436,7 @@ UserGetDCEx(PWINDOW_OBJECT Window OPTIONAL, HANDLE ClipRegion, ULONG Flags)
{
DCE* DceEmpty = NULL;
DCE* DceUnused = NULL;
KeEnterCriticalRegion();
for (Dce = FirstDce; Dce != NULL; Dce = Dce->next)
{
if ((Dce->DCXFlags & (DCX_CACHE | DCX_DCEBUSY)) == DCX_CACHE)
@ -456,7 +458,7 @@ UserGetDCEx(PWINDOW_OBJECT Window OPTIONAL, HANDLE ClipRegion, ULONG Flags)
}
}
}
KeLeaveCriticalRegion();
if (Dce == NULL)
{
@ -566,7 +568,7 @@ BOOL FASTCALL
DCE_Cleanup(PDCE pDce)
{
PDCE PrevInList;
KeEnterCriticalRegion();
if (pDce == FirstDce)
{
FirstDce = pDce->next;
@ -584,7 +586,7 @@ DCE_Cleanup(PDCE pDce)
}
assert(NULL != PrevInList);
}
KeLeaveCriticalRegion();
return NULL != PrevInList;
}
@ -592,15 +594,16 @@ HWND FASTCALL
IntWindowFromDC(HDC hDc)
{
DCE *Dce;
KeEnterCriticalRegion();
for (Dce = FirstDce; Dce != NULL; Dce = Dce->next)
{
if(Dce->hDC == hDc)
{
KeLeaveCriticalRegion();
return Dce->hwndCurrent;
}
}
KeLeaveCriticalRegion();
return 0;
}
@ -614,12 +617,12 @@ UserReleaseDC(PWINDOW_OBJECT Window, HDC hDc, BOOL EndPaint)
dce = FirstDce;
DPRINT("%p %p\n", Window, hDc);
KeEnterCriticalRegion();
while (dce && (dce->hDC != hDc))
{
dce = dce->next;
}
KeLeaveCriticalRegion();
if (dce && (dce->DCXFlags & DCX_DCEBUSY))
{
nRet = DceReleaseDC(dce, EndPaint);
@ -654,7 +657,7 @@ PDCE FASTCALL
DceFreeDCE(PDCE pdce, BOOLEAN Force)
{
DCE *ret;
if (NULL == pdce)
{
return NULL;
@ -694,6 +697,7 @@ DceFreeWindowDCE(PWINDOW_OBJECT Window)
DCE *pDCE;
pDCE = FirstDce;
KeEnterCriticalRegion();
while (pDCE)
{
if (pDCE->hwndCurrent == Window->hSelf)
@ -734,15 +738,18 @@ DceFreeWindowDCE(PWINDOW_OBJECT Window)
}
pDCE = pDCE->next;
}
KeLeaveCriticalRegion();
}
VOID FASTCALL
DceEmptyCache()
{
KeEnterCriticalRegion();
while (FirstDce != NULL)
{
FirstDce = DceFreeDCE(FirstDce, TRUE);
}
KeLeaveCriticalRegion();
}
VOID FASTCALL
@ -758,7 +765,6 @@ DceResetActiveDCEs(PWINDOW_OBJECT Window)
{
return;
}
pDCE = FirstDce;
while (pDCE)
{
@ -825,10 +831,8 @@ DceResetActiveDCEs(PWINDOW_OBJECT Window)
// UserDerefObject(CurrentWindow);
}
}
pDCE = pDCE->next;
}
}