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[NtUser]

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- Fixed crash, see bug 7226.
- AttachThreadInput is new to ReactOS, it passes the wine tests, help is needed, white papers are welcome.

svn path=/trunk/; revision=57045
This commit is contained in:
James Tabor 2012-08-06 03:13:27 +00:00
parent a69cee87a7
commit a90234288c
3 changed files with 36 additions and 4 deletions
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24
reactos/win32ss/user/ntuser/input.c
View file

@ -394,6 +394,26 @@ NtUserBlockInput(
return ret;
}
PTHREADINFO FASTCALL
IsThreadAttach(PTHREADINFO ptiTo)
{
PATTACHINFO pai;
if (!gpai) return NULL;
pai = gpai;
do
{
if (pai->pti2 == ptiTo) break;
pai = pai->paiNext;
} while (pai);
if (!pai) return NULL;
// Return ptiFrom.
return pai->pti1;
}
BOOL FASTCALL
UserAttachThreadInput(PTHREADINFO ptiFrom, PTHREADINFO ptiTo, BOOL fAttach)
{
@ -419,7 +439,7 @@ UserAttachThreadInput(PTHREADINFO ptiFrom, PTHREADINFO ptiTo, BOOL fAttach)
pai->pti1 = ptiFrom;
pai->pti2 = ptiTo;
gpai = pai;
TRACE("Attach Allocated! ptiFrom 0x%p ptiTo 0x%p\n",ptiFrom,ptiTo);
ERR("Attach Allocated! ptiFrom 0x%p ptiTo 0x%p\n",ptiFrom,ptiTo);
ptiTo->MessageQueue->iCursorLevel -= ptiFrom->iCursorLevel;
ptiFrom->pqAttach = ptiFrom->MessageQueue;
@ -457,7 +477,7 @@ UserAttachThreadInput(PTHREADINFO ptiFrom, PTHREADINFO ptiTo, BOOL fAttach)
if (paiprev) paiprev->paiNext = pai->paiNext;
ExFreePoolWithTag(pai, USERTAG_ATTACHINFO);
TRACE("Attach Free! ptiFrom 0x%p ptiTo 0x%p\n",ptiFrom,ptiTo);
ERR("Attach Free! ptiFrom 0x%p ptiTo 0x%p\n",ptiFrom,ptiTo);
ptiFrom->MessageQueue = ptiFrom->pqAttach;
// FIXME: conditions?

1
reactos/win32ss/user/ntuser/input.h
View file

@ -63,6 +63,7 @@ INIT_FUNCTION NTSTATUS NTAPI InitInputImpl(VOID);
BOOL FASTCALL IntBlockInput(PTHREADINFO W32Thread, BOOL BlockIt);
DWORD NTAPI CreateSystemThreads(UINT Type);
BOOL FASTCALL UserAttachThreadInput(PTHREADINFO,PTHREADINFO,BOOL);
PTHREADINFO FASTCALL IsThreadAttach(PTHREADINFO);
VOID FASTCALL DoTheScreenSaver(VOID);
#define ThreadHasInputAccess(W32Thread) (TRUE)

15
reactos/win32ss/user/ntuser/main.c
View file

@ -247,6 +247,8 @@ UserCreateThreadInfo(struct _ETHREAD *Thread)
return STATUS_NO_MEMORY;
}
TRACE_CH(UserThread,"Create pti 0x%p eThread 0x%p\n", ptiCurrent, Thread);
RtlZeroMemory(ptiCurrent, sizeof(THREADINFO));
PsSetThreadWin32Thread(Thread, ptiCurrent);
@ -391,7 +393,7 @@ UserDestroyThreadInfo(struct _ETHREAD *Thread)
ASSERT(ptiCurrent);
TRACE_CH(UserThread,"Destroying pti 0x%p\n", ptiCurrent);
TRACE_CH(UserThread,"Destroying pti 0x%p eThread 0x%p\n", ptiCurrent, Thread);
ptiCurrent->TIF_flags |= TIF_INCLEANUP;
ptiCurrent->pClientInfo->dwTIFlags = ptiCurrent->TIF_flags;
@ -470,11 +472,20 @@ UserDestroyThreadInfo(struct _ETHREAD *Thread)
}
}
// ptiTo
if (IsThreadAttach(ptiCurrent))
{
PTHREADINFO ptiFrom = IsThreadAttach(ptiCurrent);
TRACE_CH(UserThread,"Attached Thread ptiTo is getting switched!\n");
UserAttachThreadInput(ptiFrom, ptiCurrent, FALSE);
}
// ptiFrom
if (ptiCurrent->pqAttach && ptiCurrent->MessageQueue)
{
PTHREADINFO ptiTo;
ptiTo = PsGetThreadWin32Thread(ptiCurrent->MessageQueue->Thread);
TRACE_CH(UserThread,"Attached Thread is getting switched!\n");
TRACE_CH(UserThread,"Attached Thread ptiFrom is getting switched!\n");
UserAttachThreadInput( ptiCurrent, ptiTo, FALSE);
}