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Changed the SPIN_LOCK to a FAST_MUTEX. This is really what belongs there.

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svn path=/trunk/; revision=6984
This commit is contained in:
Art Yerkes 2003-12-13 06:19:59 +00:00
parent 0d6a146059
commit a04237fc97
1 changed files with 16 additions and 21 deletions
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37
reactos/subsys/win32k/ntuser/keyboard.c
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@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: keyboard.c,v 1.19 2003/11/30 20:03:47 navaraf Exp $
/* $Id: keyboard.c,v 1.20 2003/12/13 06:19:59 arty Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -62,7 +62,8 @@
#define KNUMP 0x400
/* Lock the keyboard state to prevent unusual concurrent access */
KSPIN_LOCK QueueStateLock;
/* This really should be a mutex. */
FAST_MUTEX QueueStateLock;
BYTE QueueKeyStateTable[256];
@ -70,7 +71,7 @@ BYTE QueueKeyStateTable[256];
/* Initialization -- Right now, just zero the key state and init the lock */
NTSTATUS FASTCALL InitKeyboardImpl(VOID) {
KeInitializeSpinLock(&QueueStateLock);
ExInitializeFastMutex(&QueueStateLock);
RtlZeroMemory(&QueueKeyStateTable,0x100);
return STATUS_SUCCESS;
}
@ -290,16 +291,15 @@ STDCALL
NtUserGetKeyState(
DWORD key)
{
KIRQL OldIrql;
DWORD ret = 0;
KeAcquireSpinLock(&QueueStateLock, &OldIrql);
ExAcquireFastMutex(&QueueStateLock);
if( key < 0x100 ) {
ret = ((DWORD)(QueueKeyStateTable[key] & KS_DOWN_BIT) << 8 ) |
(QueueKeyStateTable[key] & KS_EXT_BIT) |
(QueueKeyStateTable[key] & KS_LOCK_BIT);
}
KeReleaseSpinLock(&QueueStateLock, OldIrql);
ExReleaseFastMutex(&QueueStateLock);
return ret;
}
@ -310,10 +310,9 @@ int STDCALL ToUnicodeEx( UINT wVirtKey,
int cchBuff,
UINT wFlags,
HKL dwhkl ) {
KIRQL OldIrql;
int ToUnicodeResult = 0;
KeAcquireSpinLock(&QueueStateLock, &OldIrql);
ExAcquireFastMutex(&QueueStateLock);
ToUnicodeResult = ToUnicodeInner( wVirtKey,
wScanCode,
lpKeyState,
@ -322,7 +321,7 @@ int STDCALL ToUnicodeEx( UINT wVirtKey,
wFlags,
PsGetWin32Thread() ?
PsGetWin32Thread()->KeyboardLayout : 0 );
KeReleaseSpinLock(&QueueStateLock, OldIrql);
ExReleaseFastMutex(&QueueStateLock);
return ToUnicodeResult;
}
@ -579,7 +578,6 @@ BOOL STDCALL
NtUserTranslateMessage(LPMSG lpMsg,
HKL dwhkl) /* Used to pass the kbd layout */
{
KIRQL OldIrql;
static INT dead_char = 0;
LONG UState = 0;
WCHAR wp[2] = { 0 };
@ -603,7 +601,7 @@ NtUserTranslateMessage(LPMSG lpMsg,
ScanCode = (InMsg.lParam >> 16) & 0xff;
KeAcquireSpinLock(&QueueStateLock, &OldIrql);
ExAcquireFastMutex(&QueueStateLock);
UState = ToUnicodeInner(InMsg.wParam, HIWORD(InMsg.lParam) & 0xff,
QueueKeyStateTable, wp, 2, 0,
@ -666,7 +664,7 @@ NtUserTranslateMessage(LPMSG lpMsg,
Result = TRUE;
}
KeReleaseSpinLock(&QueueStateLock, OldIrql);
ExReleaseFastMutex(&QueueStateLock);
return Result;
}
@ -675,15 +673,14 @@ STDCALL
NtUserGetKeyboardState(
LPBYTE lpKeyState)
{
KIRQL OldIrql;
BOOL Result = TRUE;
KeAcquireSpinLock(&QueueStateLock, &OldIrql);
ExAcquireFastMutex(&QueueStateLock);
if (lpKeyState) {
if(!NT_SUCCESS(MmCopyToCaller(lpKeyState, QueueKeyStateTable, 256)))
Result = FALSE;
}
KeReleaseSpinLock(&QueueStateLock, OldIrql);
ExReleaseFastMutex(&QueueStateLock);
return Result;
}
@ -692,15 +689,14 @@ STDCALL
NtUserSetKeyboardState(
LPBYTE lpKeyState)
{
KIRQL OldIrql;
BOOL Result = TRUE;
KeAcquireSpinLock(&QueueStateLock, &OldIrql);
ExAcquireFastMutex(&QueueStateLock);
if (lpKeyState) {
if(! NT_SUCCESS(MmCopyFromCaller(QueueKeyStateTable, lpKeyState, 256)))
Result = FALSE;
}
KeReleaseSpinLock(&QueueStateLock, OldIrql);
ExReleaseFastMutex(&QueueStateLock);
return Result;
}
@ -939,7 +935,6 @@ static DWORD FASTCALL GetShiftBit( PKBDTABLES pkKT ) {
*/
VOID FASTCALL W32kKeyProcessMessage(LPMSG Msg, PKBDTABLES KeyboardLayout) {
KIRQL OldIrql;
DWORD ScanCode = 0, ModifierBits = 0;
DWORD i = 0;
DWORD BaseMapping = 0;
@ -965,7 +960,7 @@ VOID FASTCALL W32kKeyProcessMessage(LPMSG Msg, PKBDTABLES KeyboardLayout) {
return;
}
KeAcquireSpinLock(&QueueStateLock, &OldIrql);
ExAcquireFastMutex(&QueueStateLock);
/* arty -- handle numpad -- On real windows, the actual key produced
* by the messaging layer is different based on the state of numlock. */
@ -1009,6 +1004,6 @@ VOID FASTCALL W32kKeyProcessMessage(LPMSG Msg, PKBDTABLES KeyboardLayout) {
FALSE ); /* Release key */
}
KeReleaseSpinLock(&QueueStateLock, OldIrql);
ExReleaseFastMutex(&QueueStateLock);
}
/* EOF */