Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2024-06-30 18:01:07 +00:00
Code Issues Packages Projects Releases Wiki Activity

[WIN32K]

Browse source 
Don't send messages from or to a thread in cleanup. Fixes possible deadlock.

svn path=/trunk/; revision=51469
This commit is contained in:
Timo Kreuzer 2011-04-27 23:49:09 +00:00
parent b39193c83d
commit de078e7357
1 changed files with 24 additions and 17 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

41
reactos/subsystems/win32/win32k/ntuser/msgqueue.c
View file

@ -64,7 +64,7 @@ static void set_input_key_state( PUSER_MESSAGE_QUEUE MessageQueue, UCHAR key, BO
{
if (down)
{
if (!(MessageQueue->KeyState[key] & KS_DOWN_BIT))
if (!(MessageQueue->KeyState[key] & KS_DOWN_BIT))
{
MessageQueue->KeyState[key] ^= KS_LOCK_BIT;
}
@ -106,9 +106,9 @@ static void update_input_key_state( PUSER_MESSAGE_QUEUE MessageQueue, MSG* msg )
down = 1;
/* fall through */
case WM_XBUTTONUP:
if (msg->wParam == XBUTTON1)
if (msg->wParam == XBUTTON1)
set_input_key_state( MessageQueue, VK_XBUTTON1, down );
else if (msg->wParam == XBUTTON2)
else if (msg->wParam == XBUTTON2)
set_input_key_state( MessageQueue, VK_XBUTTON2, down );
break;
case WM_KEYDOWN:
@ -223,7 +223,7 @@ ClearMsgBitsMask(PUSER_MESSAGE_QUEUE Queue, UINT MessageBits)
pti = Queue->Thread->Tcb.Win32Thread;
if (MessageBits & QS_KEY)
{
{
if (--Queue->nCntsQBits[QSRosKey] == 0) ClrMask |= QS_KEY;
}
if (MessageBits & QS_MOUSEMOVE) // ReactOS hard coded.
@ -347,7 +347,7 @@ co_MsqInsertMouseMessage(MSG* Msg, DWORD flags, ULONG_PTR dwExtraInfo, BOOL Hook
if(Msg->hwnd != NULL)
{
pwnd = UserGetWindowObject(Msg->hwnd);
if ((pwnd->style & WS_VISIBLE) &&
if ((pwnd->style & WS_VISIBLE) &&
IntPtInWindow(pwnd, Msg->pt.x, Msg->pt.y))
{
pDesk->htEx = HTCLIENT;
@ -367,7 +367,7 @@ co_MsqInsertMouseMessage(MSG* Msg, DWORD flags, ULONG_PTR dwExtraInfo, BOOL Hook
continue;
}
if((pwnd->style & WS_VISIBLE) &&
if((pwnd->style & WS_VISIBLE) &&
IntPtInWindow(pwnd, Msg->pt.x, Msg->pt.y))
{
Msg->hwnd = pwnd->head.h;
@ -817,7 +817,14 @@ co_MsqSendMessage(PUSER_MESSAGE_QUEUE MessageQueue,
ptirec = MessageQueue->Thread->Tcb.Win32Thread;
ASSERT(ThreadQueue != MessageQueue);
ASSERT(ptirec->pcti); // Send must have a client side to receive it!!!!
/* Don't send from or to a dying thread */
if (pti->TIF_flags & TIF_INCLEANUP || ptirec->TIF_flags & TIF_INCLEANUP)
{
*uResult = -1;
return STATUS_TIMEOUT;
}
Timeout.QuadPart = (LONGLONG) uTimeout * (LONGLONG) -10000;
/* FIXME - increase reference counter of sender's message queue here */
@ -1034,7 +1041,7 @@ static void MsqSendParentNotify( PWND pwnd, WORD event, WORD idChild, POINT pt )
if (pwndParent == pwndDesktop) break;
pt.x += pwnd->rcClient.left - pwndParent->rcClient.left;
pt.y += pwnd->rcClient.top - pwndParent->rcClient.top;
pwnd = pwndParent;
co_IntSendMessage( UserHMGetHandle(pwnd), WM_PARENTNOTIFY,
MAKEWPARAM( event, idChild ), MAKELPARAM( pt.x, pt.y ) );
@ -1076,7 +1083,7 @@ BOOL co_IntProcessMouseMessage(MSG* msg, BOOL* RemoveMessages, UINT first, UINT
}
DPRINT("Got mouse message for 0x%x, hittest: 0x%x\n", msg->hwnd, hittest );
if (pwndMsg == NULL || pwndMsg->head.pti != pti)
{
/* Remove and ignore the message */
@ -1146,7 +1153,7 @@ BOOL co_IntProcessMouseMessage(MSG* msg, BOOL* RemoveMessages, UINT first, UINT
}
}
if (!((first == 0 && last == 0) || (message >= first || message <= last)))
if (!((first == 0 && last == 0) || (message >= first || message <= last)))
{
DPRINT("Message out of range!!!\n");
RETURN(FALSE);
@ -1267,8 +1274,8 @@ BOOL co_IntProcessMouseMessage(MSG* msg, BOOL* RemoveMessages, UINT first, UINT
if (pwndTop && pwndTop != pwndDesktop)
{
LONG ret = co_IntSendMessage( msg->hwnd,
WM_MOUSEACTIVATE,
LONG ret = co_IntSendMessage( msg->hwnd,
WM_MOUSEACTIVATE,
(WPARAM)UserHMGetHandle(pwndTop),
MAKELONG( hittest, msg->message));
switch(ret)
@ -1443,7 +1450,7 @@ co_MsqPeekHardwareMessage(IN PUSER_MESSAGE_QUEUE MessageQueue,
CurrentMessage = CONTAINING_RECORD(CurrentEntry, USER_MESSAGE,
ListEntry);
do
do
{
if (IsListEmpty(CurrentEntry)) break;
if (!CurrentMessage) break;
@ -1490,7 +1497,7 @@ MsqPeekMessage(IN PUSER_MESSAGE_QUEUE MessageQueue,
PLIST_ENTRY CurrentEntry;
PUSER_MESSAGE CurrentMessage;
PLIST_ENTRY ListHead;
CurrentEntry = MessageQueue->PostedMessagesListHead.Flink;
ListHead = &MessageQueue->PostedMessagesListHead;
@ -1542,7 +1549,7 @@ co_MsqWaitForNewMessages(PUSER_MESSAGE_QUEUE MessageQueue, PWND WndFilter,
ret = KeWaitForSingleObject( MessageQueue->NewMessages,
UserRequest,
UserMode,
FALSE,
FALSE,
NULL );
UserEnterCo();
return ret;
@ -1614,7 +1621,7 @@ MsqCleanupMessageQueue(PUSER_MESSAGE_QUEUE MessageQueue)
PUSER_MESSAGE CurrentMessage;
PUSER_SENT_MESSAGE CurrentSentMessage;
PTHREADINFO pti;
pti = MessageQueue->Thread->Tcb.Win32Thread;
@ -1642,7 +1649,7 @@ MsqCleanupMessageQueue(PUSER_MESSAGE_QUEUE MessageQueue)
DPRINT("Notify the sender and remove a message from the queue that had not been dispatched\n");
/* Only if the message has a sender was the message in the DispatchingList */
if ((CurrentSentMessage->SenderQueue)
if ((CurrentSentMessage->SenderQueue)
&& (CurrentSentMessage->DispatchingListEntry.Flink != NULL))
{
RemoveEntryList(&CurrentSentMessage->DispatchingListEntry);