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[NTDLL]: Don't give every process a KernelCallbackTable. Only GUI processes need one.

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[USER32]: Initialize the KernelCallbackTable when loaded in GUI process. Also, store it statically instead of requiring a heap allocation (just like Windows).

svn path=/trunk/; revision=59862
This commit is contained in:
Alex Ionescu 2013-08-28 22:35:28 +00:00
parent 74053e9f52
commit 0ba0d34b5c
2 changed files with 17 additions and 35 deletions
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12
reactos/dll/ntdll/ldr/ldrinit.c
View file

@ -1696,18 +1696,6 @@ LdrpInitializeProcess(IN PCONTEXT Context,
return STATUS_NO_MEMORY;
}
// FIXME: Is it located properly?
/* Initialize table of callbacks for the kernel. */
Peb->KernelCallbackTable = RtlAllocateHeap(RtlGetProcessHeap(),
0,
sizeof(PVOID) *
(USER32_CALLBACK_MAXIMUM + 1));
if (!Peb->KernelCallbackTable)
{
DPRINT1("Failed to create callback table\n");
ZwTerminateProcess(NtCurrentProcess(), STATUS_INSUFFICIENT_RESOURCES);
}
/* Allocate an Activation Context Stack */
Status = RtlAllocateActivationContextStack(&Teb->ActivationContextStackPointer);
if (!NT_SUCCESS(Status)) return Status;

40
reactos/win32ss/user/user32/misc/dllmain.c
View file

@ -194,34 +194,28 @@ CleanupThread(VOID)
{
}
PVOID apfnDispatch[USER32_CALLBACK_MAXIMUM + 1] =
{
User32CallWindowProcFromKernel,
User32CallSendAsyncProcForKernel,
User32LoadSysMenuTemplateForKernel,
User32SetupDefaultCursors,
User32CallHookProcFromKernel,
User32CallEventProcFromKernel,
User32CallLoadMenuFromKernel,
User32CallClientThreadSetupFromKernel,
User32CallClientLoadLibraryFromKernel,
User32CallGetCharsetInfo,
};
BOOL
Init(VOID)
{
USERCONNECT UserCon;
PVOID *KernelCallbackTable;
/* Set up the kernel callbacks. */
KernelCallbackTable = NtCurrentPeb()->KernelCallbackTable;
KernelCallbackTable[USER32_CALLBACK_WINDOWPROC] =
(PVOID)User32CallWindowProcFromKernel;
KernelCallbackTable[USER32_CALLBACK_SENDASYNCPROC] =
(PVOID)User32CallSendAsyncProcForKernel;
KernelCallbackTable[USER32_CALLBACK_LOADSYSMENUTEMPLATE] =
(PVOID)User32LoadSysMenuTemplateForKernel;
KernelCallbackTable[USER32_CALLBACK_LOADDEFAULTCURSORS] =
(PVOID)User32SetupDefaultCursors;
KernelCallbackTable[USER32_CALLBACK_HOOKPROC] =
(PVOID)User32CallHookProcFromKernel;
KernelCallbackTable[USER32_CALLBACK_EVENTPROC] =
(PVOID)User32CallEventProcFromKernel;
KernelCallbackTable[USER32_CALLBACK_LOADMENU] =
(PVOID)User32CallLoadMenuFromKernel;
KernelCallbackTable[USER32_CALLBACK_CLIENTTHREADSTARTUP] =
(PVOID)User32CallClientThreadSetupFromKernel;
KernelCallbackTable[USER32_CALLBACK_CLIENTLOADLIBRARY] =
(PVOID)User32CallClientLoadLibraryFromKernel;
KernelCallbackTable[USER32_CALLBACK_GETCHARSETINFO] =
(PVOID)User32CallGetCharsetInfo;
/* Set PEB data */
NtCurrentPeb()->KernelCallbackTable = apfnDispatch;
NtCurrentPeb()->PostProcessInitRoutine = NULL;
NtUserProcessConnect( NtCurrentProcess(),
&UserCon,