[ion] 25461: - Fix handle close bug. The ExDestroyHandleEntry API was only killing entries unless the table wasn't being destoyed, which it actually is during process termination, and through failing, was actually not closing the handle at all. This means any killed process leaked all its handles and they were never closed. These handles are now closed, reducing memory load/leaks and opening the door for new bugs :) - Fix LPC process closing bug. - Rewrite executive timer support to make it thre
15 Jan
2007
15 Jan
'07
7:33 a.m.
Author: ion
Date: Mon Jan 15 10:33:42 2007
New Revision: 25461
URL: http://svn.reactos.org/svn/reactos?rev=25461&view=rev
Log:
- Fix handle close bug. The ExDestroyHandleEntry API was only killing entries unless the
table wasn't being destoyed, which it actually is during process termination, and
through failing, was actually not closing the handle at all. This means any killed process
leaked all its handles and they were never closed. These handles are now closed, reducing
memory load/leaks and opening the door for new bugs :)
- Fix LPC process closing bug.
- Rewrite executive timer support to make it thread-safe and use proper locking order and
semantics as well as safe referencing. Also implement Windows 2003 feature of flushing
DPCs when a timer is deleted, to avoid the timer from being fired after deletion.
Modified:
trunk/reactos/base/system/smss/smapi.c
trunk/reactos/include/ndk/kefuncs.h
trunk/reactos/ntoskrnl/KrnlFun.c
trunk/reactos/ntoskrnl/ex/handle.c
trunk/reactos/ntoskrnl/ex/timer.c
trunk/reactos/ntoskrnl/ex/work.c
trunk/reactos/ntoskrnl/include/internal/ex.h
trunk/reactos/ntoskrnl/lpc/close.c
trunk/reactos/ntoskrnl/ob/obhandle.c
trunk/reactos/subsystems/win32/csrss/api/wapi.c
Modified: trunk/reactos/base/system/smss/smapi.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/base/system/smss/smapi.c?r…
==============================================================================
--- trunk/reactos/base/system/smss/smapi.c (original)
+++ trunk/reactos/base/system/smss/smapi.c Mon Jan 15 10:33:42 2007
@@ -144,7 +144,7 @@
break;
case LPC_PORT_CLOSED:
Reply = NULL;
- break;
+ continue;
default:
if ((Request.SmHeader.ApiIndex) &&
(Request.SmHeader.ApiIndex < (sizeof SmApi / sizeof SmApi[0])))
Modified: trunk/reactos/include/ndk/kefuncs.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/include/ndk/kefuncs.h?rev=…
==============================================================================
--- trunk/reactos/include/ndk/kefuncs.h (original)
+++ trunk/reactos/include/ndk/kefuncs.h Mon Jan 15 10:33:42 2007
@@ -195,6 +195,12 @@
VOID
);
+VOID
+NTAPI
+KeFlushQueuedDpcs(
+ VOID
+);
+
BOOLEAN
NTAPI
KiIpiServiceRoutine(
Modified: trunk/reactos/ntoskrnl/KrnlFun.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/KrnlFun.c?rev=254…
==============================================================================
--- trunk/reactos/ntoskrnl/KrnlFun.c (original)
+++ trunk/reactos/ntoskrnl/KrnlFun.c Mon Jan 15 10:33:42 2007
@@ -9,23 +9,19 @@
// Failure to respect this will *ACHIEVE NOTHING*.
//
// Ex:
-// - Fixup existing code that talks to Ke.
// - Implement Generic Callback mechanism.
// - Use pushlocks for handle implementation.
-//
-// Lpc:
-// - Figure out why NTLPC-processes won't die anymore.
//
// Ke1:
// - Implement KiInitMachineDependent.
// - Implement Privileged Instruction Handler in Umode GPF.
//
-// Fstub:
-// - Implement IoAssignDriveLetters using mount manager support.
-//
// Hal:
// - Use APC and DPC Interrupt Dispatchers.
// - CMOS Initialization and CMOS Spinlock.
+//
+// Fstub:
+// - Implement IoAssignDriveLetters using mount manager support.
//
// Ke2:
// - New optimized table-based tick-hashed timer implementation.
Modified: trunk/reactos/ntoskrnl/ex/handle.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ex/handle.c?rev=2…
==============================================================================
--- trunk/reactos/ntoskrnl/ex/handle.c (original)
+++ trunk/reactos/ntoskrnl/ex/handle.c Mon Jan 15 10:33:42 2007
@@ -866,8 +866,6 @@
DPRINT("DestroyHandleByEntry HT:0x%p Entry:0x%p\n", HandleTable, Entry);
- if (!(HandleTable->Flags & EX_HANDLE_TABLE_CLOSING))
- {
KeEnterCriticalRegion();
ExAcquireHandleLockExclusive(HandleTable);
@@ -879,7 +877,6 @@
ExReleaseHandleLock(HandleTable);
KeLeaveCriticalRegion();
- }
}
PHANDLE_TABLE_ENTRY
Modified: trunk/reactos/ntoskrnl/ex/timer.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ex/timer.c?rev=25…
==============================================================================
--- trunk/reactos/ntoskrnl/ex/timer.c (original)
+++ trunk/reactos/ntoskrnl/ex/timer.c Mon Jan 15 10:33:42 2007
@@ -1,40 +1,18 @@
/*
- * COPYRIGHT: See COPYING in the top level directory
- * PROJECT: ReactOS kernel
+ * PROJECT: ReactOS Kernel
+ * LICENSE: GPL - See COPYING in the top level directory
* FILE: ntoskrnl/ex/timer.c
* PURPOSE: Executive Timer Implementation
- *
- * PROGRAMMERS: Alex Ionescu (alex(a)relsoft.net)
- * David Welch (welch(a)mcmail.com)
+ * PROGRAMMERS: Alex Ionescu (alex.ionescu(a)reactos.org)
*/
-/* INCLUDES *****************************************************************/
+/* INCLUDES ******************************************************************/
#include <ntoskrnl.h>
#define NDEBUG
-#include <internal/debug.h>
-
-#if defined (ALLOC_PRAGMA)
-#pragma alloc_text(INIT, ExpInitializeTimerImplementation)
-#endif
-
-
-/* TYPES ********************************************************************/
-
-/* Executive Timer Object */
-typedef struct _ETIMER
-{
- KTIMER KeTimer;
- KAPC TimerApc;
- KDPC TimerDpc;
- LIST_ENTRY ActiveTimerListEntry;
- KSPIN_LOCK Lock;
- BOOLEAN ApcAssociated;
- BOOLEAN WakeTimer;
- LIST_ENTRY WakeTimerListEntry;
-} ETIMER, *PETIMER;
-
-/* GLOBALS ******************************************************************/
+#include <debug.h>
+
+/* GLOBALS *******************************************************************/
/* Timer Object Type */
POBJECT_TYPE ExTimerType = NULL;
@@ -55,56 +33,70 @@
static const INFORMATION_CLASS_INFO ExTimerInfoClass[] =
{
/* TimerBasicInformation */
- ICI_SQ_SAME( sizeof(TIMER_BASIC_INFORMATION), sizeof(ULONG), ICIF_QUERY ),
+ ICI_SQ_SAME(sizeof(TIMER_BASIC_INFORMATION), sizeof(ULONG), ICIF_QUERY),
};
-/* FUNCTIONS *****************************************************************/
+/* PRIVATE FUNCTIONS *********************************************************/
VOID
-STDCALL
+NTAPI
ExTimerRundown(VOID)
{
PETHREAD Thread = PsGetCurrentThread();
KIRQL OldIrql;
PLIST_ENTRY CurrentEntry;
PETIMER Timer;
-
- /* Lock the Thread's Active Timer List*/
+ ULONG DerefsToDo;
+
+ /* Lock the Thread's Active Timer List and loop it */
KeAcquireSpinLock(&Thread->ActiveTimerListLock, &OldIrql);
-
- while (!IsListEmpty(&Thread->ActiveTimerListHead))
- {
- /* Remove a Timer */
- CurrentEntry = RemoveTailList(&Thread->ActiveTimerListHead);
-
- /* Get the Timer */
+ CurrentEntry = Thread->ActiveTimerListHead.Flink;
+ while (CurrentEntry != &Thread->ActiveTimerListHead)
+ {
+ /* Get the timer */
Timer = CONTAINING_RECORD(CurrentEntry, ETIMER, ActiveTimerListEntry);
- DPRINT("Timer, ThreadList: 0x%p, 0x%p\n", Timer, Thread);
-
- /* Mark it as deassociated */
- ASSERT (Timer->ApcAssociated);
- Timer->ApcAssociated = FALSE;
+
+ /* Reference it */
+ ObReferenceObject(Timer);
+ DerefsToDo = 1;
+
+ /* Unlock the list */
+ KeReleaseSpinLock(&Thread->ActiveTimerListLock, OldIrql);
+
+ /* Lock the Timer */
+ KeAcquireSpinLock(&Timer->Lock, &OldIrql);
+
+ /* Lock the list again */
+ KeAcquireSpinLockAtDpcLevel(&Thread->ActiveTimerListLock);
+
+ /* Make sure that the timer is valid */
+ if ((Timer->ApcAssociated) && (&Thread->Tcb ==
Timer->TimerApc.Thread))
+ {
+ /* Remove it from the list */
+ RemoveEntryList(&Timer->ActiveTimerListEntry);
+ Timer->ApcAssociated = FALSE;
+
+ /* Cancel the timer and remove its DPC and APC */
+ KeCancelTimer(&Timer->KeTimer);
+ KeRemoveQueueDpc(&Timer->TimerDpc);
+ if (KeRemoveQueueApc(&Timer->TimerApc)) DerefsToDo = 2;
+
+ /* Add another dereference to do */
+ DerefsToDo++;
+ }
/* Unlock the list */
KeReleaseSpinLockFromDpcLevel(&Thread->ActiveTimerListLock);
- /* Lock the Timer */
- KeAcquireSpinLockAtDpcLevel(&Timer->Lock);
-
- /* Cancel the timer and remove its DPC and APC */
- ASSERT(&Thread->Tcb == Timer->TimerApc.Thread);
- KeCancelTimer(&Timer->KeTimer);
- KeRemoveQueueDpc(&Timer->TimerDpc);
- KeRemoveQueueApc(&Timer->TimerApc);
-
/* Unlock the Timer */
KeReleaseSpinLock(&Timer->Lock, OldIrql);
/* Dereference it */
- ObDereferenceObject(Timer);
+ ObDereferenceObjectEx(Timer, DerefsToDo);
/* Loop again */
KeAcquireSpinLock(&Thread->ActiveTimerListLock, &OldIrql);
+ CurrentEntry = Thread->ActiveTimerListHead.Flink;
}
/* Release lock and return */
@@ -113,133 +105,127 @@
}
VOID
-STDCALL
-ExpDeleteTimer(PVOID ObjectBody)
+NTAPI
+ExpDeleteTimer(IN PVOID ObjectBody)
{
KIRQL OldIrql;
PETIMER Timer = ObjectBody;
- DPRINT("ExpDeleteTimer(Timer: 0x%p)\n", Timer);
/* Check if it has a Wait List */
- if (Timer->WakeTimer)
+ if (Timer->WakeTimerListEntry.Flink)
{
/* Lock the Wake List */
KeAcquireSpinLock(&ExpWakeListLock, &OldIrql);
/* Check again, since it might've changed before we locked */
- if (Timer->WakeTimer)
+ if (Timer->WakeTimerListEntry.Flink)
{
/* Remove it from the Wait List */
- DPRINT("Removing wake list\n");
RemoveEntryList(&Timer->WakeTimerListEntry);
- Timer->WakeTimer = FALSE;
+ Timer->WakeTimerListEntry.Flink = NULL;
}
/* Release the Wake List */
KeReleaseSpinLock(&ExpWakeListLock, OldIrql);
}
- /* Tell the Kernel to cancel the Timer */
- DPRINT("Cancelling Timer\n");
+ /* Tell the Kernel to cancel the Timer and flush all queued DPCs */
KeCancelTimer(&Timer->KeTimer);
+ KeFlushQueuedDpcs();
}
VOID
-STDCALL
-ExpTimerDpcRoutine(PKDPC Dpc,
- PVOID DeferredContext,
- PVOID SystemArgument1,
- PVOID SystemArgument2)
+NTAPI
+ExpTimerDpcRoutine(IN PKDPC Dpc,
+ IN PVOID DeferredContext,
+ IN PVOID SystemArgument1,
+ IN PVOID SystemArgument2)
+{
+ PETIMER Timer = DeferredContext;
+ BOOLEAN Inserted = FALSE;
+
+ /* Reference the timer */
+ if (!ObReferenceObjectSafe(Timer)) return;
+
+ /* Lock the Timer */
+ KeAcquireSpinLockAtDpcLevel(&Timer->Lock);
+
+ /* Check if the timer is associated */
+ if (Timer->ApcAssociated)
+ {
+ /* Queue the APC */
+ Inserted = KeInsertQueueApc(&Timer->TimerApc,
+ SystemArgument1,
+ SystemArgument2,
+ IO_NO_INCREMENT);
+ }
+
+ /* Release the Timer */
+ KeReleaseSpinLockFromDpcLevel(&Timer->Lock);
+
+ /* Dereference it if we couldn't queue the APC */
+ if (!Inserted) ObDereferenceObject(Timer);
+}
+
+VOID
+NTAPI
+ExpTimerApcKernelRoutine(IN PKAPC Apc,
+ IN OUT PKNORMAL_ROUTINE* NormalRoutine,
+ IN OUT PVOID* NormalContext,
+ IN OUT PVOID* SystemArgument1,
+ IN OUT PVOID* SystemArguemnt2)
{
PETIMER Timer;
KIRQL OldIrql;
-
- DPRINT("ExpTimerDpcRoutine(Dpc: 0x%p)\n", Dpc);
-
- /* Get the Timer Object */
- Timer = (PETIMER)DeferredContext;
+ ULONG DerefsToDo = 1;
+ PETHREAD Thread = PsGetCurrentThread();
+
+ /* We need to find out which Timer we are */
+ Timer = CONTAINING_RECORD(Apc, ETIMER, TimerApc);
/* Lock the Timer */
KeAcquireSpinLock(&Timer->Lock, &OldIrql);
- /* Queue the APC */
- if(Timer->ApcAssociated)
- {
- DPRINT("Queuing APC\n");
- KeInsertQueueApc(&Timer->TimerApc,
- SystemArgument1,
- SystemArgument2,
- IO_NO_INCREMENT);
- }
-
- /* Release the Timer */
+ /* Lock the Thread's Active Timer List*/
+ KeAcquireSpinLockAtDpcLevel(&Thread->ActiveTimerListLock);
+
+ /* Make sure that the Timer is valid, and that it belongs to this thread */
+ if ((Timer->ApcAssociated) && (&Thread->Tcb ==
Timer->TimerApc.Thread))
+ {
+ /* Check if it's not periodic */
+ if (!Timer->Period)
+ {
+ /* Remove it from the Active Timers List */
+ RemoveEntryList(&Timer->ActiveTimerListEntry);
+
+ /* Disable it */
+ Timer->ApcAssociated = FALSE;
+ DerefsToDo = 2;
+ }
+ }
+ else
+ {
+ /* Clear the normal routine */
+ *NormalRoutine = NULL;
+ }
+
+ /* Release locks */
+ KeReleaseSpinLockFromDpcLevel(&Thread->ActiveTimerListLock);
KeReleaseSpinLock(&Timer->Lock, OldIrql);
- return;
-}
-
-
-VOID
-STDCALL
-ExpTimerApcKernelRoutine(PKAPC Apc,
- PKNORMAL_ROUTINE* NormalRoutine,
- PVOID* NormalContext,
- PVOID* SystemArgument1,
- PVOID* SystemArguemnt2)
-{
- PETIMER Timer;
- KIRQL OldIrql;
- PETHREAD CurrentThread = PsGetCurrentThread();
-
- /* We need to find out which Timer we are */
- Timer = CONTAINING_RECORD(Apc, ETIMER, TimerApc);
- DPRINT("ExpTimerApcKernelRoutine(Apc: 0x%p. Timer: 0x%p)\n", Apc, Timer);
-
- /* Lock the Timer */
- KeAcquireSpinLock(&Timer->Lock, &OldIrql);
-
- /* Lock the Thread's Active Timer List*/
- KeAcquireSpinLockAtDpcLevel(&CurrentThread->ActiveTimerListLock);
-
- /*
- * Make sure that the Timer is still valid, and that it belongs to this thread
- * Remove it if it's not periodic
- */
- if ((Timer->ApcAssociated) &&
- (&CurrentThread->Tcb == Timer->TimerApc.Thread) &&
- (!Timer->KeTimer.Period))
- {
- /* Remove it from the Active Timers List */
- DPRINT("Removing Timer\n");
- RemoveEntryList(&Timer->ActiveTimerListEntry);
-
- /* Disable it */
- Timer->ApcAssociated = FALSE;
-
- /* Release spinlocks */
- KeReleaseSpinLockFromDpcLevel(&CurrentThread->ActiveTimerListLock);
- KeReleaseSpinLock(&Timer->Lock, OldIrql);
-
- /* Dereference the Timer Object */
- ObDereferenceObject(Timer);
- return;
- }
-
- /* Release spinlocks */
- KeReleaseSpinLockFromDpcLevel(&CurrentThread->ActiveTimerListLock);
- KeReleaseSpinLock(&Timer->Lock, OldIrql);
+
+ /* Dereference as needed */
+ ObDereferenceObjectEx(Timer, DerefsToDo);
}
VOID
INIT_FUNCTION
-STDCALL
+NTAPI
ExpInitializeTimerImplementation(VOID)
{
OBJECT_TYPE_INITIALIZER ObjectTypeInitializer;
UNICODE_STRING Name;
- DPRINT("Creating Timer Object Type\n");
-
- /* Create the Event Pair Object Type */
+ /* Create the Timer Object Type */
RtlZeroMemory(&ObjectTypeInitializer, sizeof(ObjectTypeInitializer));
RtlInitUnicodeString(&Name, L"Timer");
ObjectTypeInitializer.Length = sizeof(ObjectTypeInitializer);
@@ -256,8 +242,10 @@
InitializeListHead(&ExpWakeList);
}
+/* PUBLIC FUNCTIONS **********************************************************/
+
NTSTATUS
-STDCALL
+NTAPI
NtCancelTimer(IN HANDLE TimerHandle,
OUT PBOOLEAN CurrentState OPTIONAL)
{
@@ -266,13 +254,12 @@
BOOLEAN State;
KIRQL OldIrql;
PETHREAD TimerThread;
- BOOLEAN KillTimer = FALSE;
+ ULONG DerefsToDo = 1;
NTSTATUS Status = STATUS_SUCCESS;
PAGED_CODE();
- DPRINT("NtCancelTimer(0x%p, 0x%x)\n", TimerHandle, CurrentState);
/* Check Parameter Validity */
- if(CurrentState && PreviousMode != KernelMode)
+ if ((CurrentState) && (PreviousMode != KernelMode))
{
_SEH_TRY
{
@@ -283,7 +270,6 @@
Status = _SEH_GetExceptionCode();
}
_SEH_END;
-
if(!NT_SUCCESS(Status)) return Status;
}
@@ -294,30 +280,23 @@
PreviousMode,
(PVOID*)&Timer,
NULL);
-
- /* Check for success */
if(NT_SUCCESS(Status))
{
- DPRINT("Timer Referenced: 0x%p\n", Timer);
-
/* Lock the Timer */
KeAcquireSpinLock(&Timer->Lock, &OldIrql);
/* Check if it's enabled */
if (Timer->ApcAssociated)
{
- /*
- * First, remove it from the Thread's Active List
- * Get the Thread.
- */
+ /* Get the Thread. */
TimerThread = CONTAINING_RECORD(Timer->TimerApc.Thread, ETHREAD, Tcb);
- DPRINT("Removing from Thread: 0x%p\n", TimerThread);
/* Lock its active list */
KeAcquireSpinLockAtDpcLevel(&TimerThread->ActiveTimerListLock);
/* Remove it */
RemoveEntryList(&TimerThread->ActiveTimerListHead);
+ Timer->ApcAssociated = FALSE;
/* Unlock the list */
KeReleaseSpinLockFromDpcLevel(&TimerThread->ActiveTimerListLock);
@@ -325,30 +304,27 @@
/* Cancel the Timer */
KeCancelTimer(&Timer->KeTimer);
KeRemoveQueueDpc(&Timer->TimerDpc);
- KeRemoveQueueApc(&Timer->TimerApc);
- Timer->ApcAssociated = FALSE;
- KillTimer = TRUE;
+ if (KeRemoveQueueApc(&Timer->TimerApc)) DerefsToDo = 2;
+ DerefsToDo++;
}
else
{
/* If timer was disabled, we still need to cancel it */
- DPRINT("APC was not Associated. Cancelling Timer\n");
KeCancelTimer(&Timer->KeTimer);
}
/* Handle a Wake Timer */
- if (Timer->WakeTimer)
+ if (Timer->WakeTimerListEntry.Flink)
{
/* Lock the Wake List */
KeAcquireSpinLockAtDpcLevel(&ExpWakeListLock);
/* Check again, since it might've changed before we locked */
- if (Timer->WakeTimer)
+ if (Timer->WakeTimerListEntry.Flink)
{
/* Remove it from the Wait List */
- DPRINT("Removing wake list\n");
RemoveEntryList(&Timer->WakeTimerListEntry);
- Timer->WakeTimer = FALSE;
+ Timer->WakeTimerListEntry.Flink = NULL;
}
/* Release the Wake List */
@@ -362,14 +338,10 @@
State = KeReadStateTimer(&Timer->KeTimer);
/* Dereference the Object */
- ObDereferenceObject(Timer);
-
- /* Dereference if it was previously enabled */
- if (KillTimer) ObDereferenceObject(Timer);
- DPRINT1("Timer disabled\n");
+ ObDereferenceObjectEx(Timer, DerefsToDo);
/* Make sure it's safe to write to the handle */
- if(CurrentState)
+ if (CurrentState)
{
_SEH_TRY
{
@@ -388,7 +360,7 @@
}
NTSTATUS
-STDCALL
+NTAPI
NtCreateTimer(OUT PHANDLE TimerHandle,
IN ACCESS_MASK DesiredAccess,
IN POBJECT_ATTRIBUTES ObjectAttributes OPTIONAL,
@@ -399,7 +371,6 @@
KPROCESSOR_MODE PreviousMode = ExGetPreviousMode();
NTSTATUS Status = STATUS_SUCCESS;
PAGED_CODE();
- DPRINT("NtCreateTimer(Handle: 0x%p, Type: %d)\n", TimerHandle, TimerType);
/* Check Parameter Validity */
if (PreviousMode != KernelMode)
@@ -413,14 +384,12 @@
Status = _SEH_GetExceptionCode();
}
_SEH_END;
-
if(!NT_SUCCESS(Status)) return Status;
}
/* Check for correct timer type */
if ((TimerType != NotificationTimer) && (TimerType != SynchronizationTimer))
{
- DPRINT1("Invalid Timer Type!\n");
return STATUS_INVALID_PARAMETER_4;
}
@@ -434,23 +403,19 @@
0,
0,
(PVOID*)&Timer);
-
- /* Check for Success */
if(NT_SUCCESS(Status))
{
- /* Initialize the Kernel Timer */
- DPRINT("Initializing Timer: 0x%p\n", Timer);
- KeInitializeTimerEx(&Timer->KeTimer, TimerType);
-
- /* Initialize the Timer Lock */
- KeInitializeSpinLock(&Timer->Lock);
-
/* Initialize the DPC */
KeInitializeDpc(&Timer->TimerDpc, ExpTimerDpcRoutine, Timer);
- /* Set Initial State */
+ /* Initialize the Kernel Timer */
+ KeInitializeTimerEx(&Timer->KeTimer, TimerType);
+
+ /* Initialize the timer fields */
+ KeInitializeSpinLock(&Timer->Lock);
Timer->ApcAssociated = FALSE;
Timer->WakeTimer = FALSE;
+ Timer->WakeTimerListEntry.Flink = NULL;
/* Insert the Timer */
Status = ObInsertObject((PVOID)Timer,
@@ -459,7 +424,6 @@
0,
NULL,
&hTimer);
- DPRINT("Timer Inserted\n");
/* Make sure it's safe to write to the handle */
_SEH_TRY
@@ -478,7 +442,7 @@
}
NTSTATUS
-STDCALL
+NTAPI
NtOpenTimer(OUT PHANDLE TimerHandle,
IN ACCESS_MASK DesiredAccess,
IN POBJECT_ATTRIBUTES ObjectAttributes)
@@ -487,7 +451,6 @@
KPROCESSOR_MODE PreviousMode = ExGetPreviousMode();
NTSTATUS Status = STATUS_SUCCESS;
PAGED_CODE();
- DPRINT("NtOpenTimer(TimerHandle: 0x%p)\n", TimerHandle);
/* Check Parameter Validity */
if (PreviousMode != KernelMode)
@@ -501,7 +464,6 @@
Status = _SEH_GetExceptionCode();
}
_SEH_END;
-
if(!NT_SUCCESS(Status)) return Status;
}
@@ -513,8 +475,6 @@
DesiredAccess,
NULL,
&hTimer);
-
- /* Check for success */
if(NT_SUCCESS(Status))
{
/* Make sure it's safe to write to the handle */
@@ -533,35 +493,30 @@
return Status;
}
-
NTSTATUS
-STDCALL
+NTAPI
NtQueryTimer(IN HANDLE TimerHandle,
IN TIMER_INFORMATION_CLASS TimerInformationClass,
OUT PVOID TimerInformation,
IN ULONG TimerInformationLength,
- OUT PULONG ReturnLength OPTIONAL)
+ OUT PULONG ReturnLength OPTIONAL)
{
PETIMER Timer;
KPROCESSOR_MODE PreviousMode = ExGetPreviousMode();
- NTSTATUS Status = STATUS_SUCCESS;
- PTIMER_BASIC_INFORMATION BasicInfo = (PTIMER_BASIC_INFORMATION)TimerInformation;
+ NTSTATUS Status;
+ PTIMER_BASIC_INFORMATION BasicInfo = TimerInformation;
PAGED_CODE();
- DPRINT("NtQueryTimer(TimerHandle: 0x%p, Class: %d)\n", TimerHandle,
TimerInformationClass);
/* Check Validity */
Status = DefaultQueryInfoBufferCheck(TimerInformationClass,
ExTimerInfoClass,
- sizeof(ExTimerInfoClass) /
sizeof(ExTimerInfoClass[0]),
+ sizeof(ExTimerInfoClass) /
+ sizeof(ExTimerInfoClass[0]),
TimerInformation,
TimerInformationLength,
ReturnLength,
PreviousMode);
- if(!NT_SUCCESS(Status))
- {
- DPRINT1("NtQueryTimer() failed, Status: 0x%x\n", Status);
- return Status;
- }
+ if(!NT_SUCCESS(Status)) return Status;
/* Get the Timer Object */
Status = ObReferenceObjectByHandle(TimerHandle,
@@ -570,8 +525,6 @@
PreviousMode,
(PVOID*)&Timer,
NULL);
-
- /* Check for Success */
if(NT_SUCCESS(Status))
{
/* Return the Basic Information */
@@ -585,10 +538,7 @@
BasicInfo->SignalState = KeReadStateTimer(&Timer->KeTimer);
/* Return the buffer length if requested */
- if(ReturnLength != NULL) *ReturnLength = sizeof(TIMER_BASIC_INFORMATION);
-
- DPRINT("Returning Information for Timer: 0x%p. Time Remaining:
%I64x\n",
- Timer, BasicInfo->TimeRemaining.QuadPart);
+ if(ReturnLength) *ReturnLength = sizeof(TIMER_BASIC_INFORMATION);
}
_SEH_EXCEPT(_SEH_ExSystemExceptionFilter)
{
@@ -605,7 +555,7 @@
}
NTSTATUS
-STDCALL
+NTAPI
NtSetTimer(IN HANDLE TimerHandle,
IN PLARGE_INTEGER DueTime,
IN PTIMER_APC_ROUTINE TimerApcRoutine OPTIONAL,
@@ -618,14 +568,12 @@
KIRQL OldIrql;
BOOLEAN State;
KPROCESSOR_MODE PreviousMode = ExGetPreviousMode();
- PETHREAD CurrentThread = PsGetCurrentThread();
+ PETHREAD Thread = PsGetCurrentThread();
LARGE_INTEGER TimerDueTime;
PETHREAD TimerThread;
- BOOLEAN KillTimer = FALSE;
+ ULONG DerefsToDo = 1;
NTSTATUS Status = STATUS_SUCCESS;
PAGED_CODE();
- DPRINT("NtSetTimer(TimerHandle: 0x%p, DueTime: %I64x, Apc: 0x%p, Period:
%d)\n",
- TimerHandle, DueTime->QuadPart, TimerApcRoutine, Period);
/* Check Parameter Validity */
if (PreviousMode != KernelMode)
@@ -633,27 +581,18 @@
_SEH_TRY
{
TimerDueTime = ProbeForReadLargeInteger(DueTime);
-
- if(PreviousState)
- {
- ProbeForWriteBoolean(PreviousState);
- }
+ if(PreviousState) ProbeForWriteBoolean(PreviousState);
}
_SEH_EXCEPT(_SEH_ExSystemExceptionFilter)
{
Status = _SEH_GetExceptionCode();
}
_SEH_END;
-
if(!NT_SUCCESS(Status)) return Status;
}
/* Check for a valid Period */
- if (Period < 0)
- {
- DPRINT1("Invalid Period for timer\n");
- return STATUS_INVALID_PARAMETER_6;
- }
+ if (Period < 0) return STATUS_INVALID_PARAMETER_6;
/* Get the Timer Object */
Status = ObReferenceObjectByHandle(TimerHandle,
@@ -666,7 +605,7 @@
/*
* Tell the user we don't support Wake Timers...
* when we have the ability to use/detect the Power Management
- * functionatliy required to support them, make this check dependent
+ * functionality required to support them, make this check dependent
* on the actual PM capabilities
*/
if (WakeTimer) Status = STATUS_TIMER_RESUME_IGNORED;
@@ -675,24 +614,22 @@
if (NT_SUCCESS(Status))
{
/* Lock the Timer */
- DPRINT("Timer Referencced: 0x%p\n", Timer);
KeAcquireSpinLock(&Timer->Lock, &OldIrql);
/* Cancel Running Timer */
if (Timer->ApcAssociated)
{
- /*
- * First, remove it from the Thread's Active List
- * Get the Thread.
- */
- TimerThread = CONTAINING_RECORD(Timer->TimerApc.Thread, ETHREAD, Tcb);
- DPRINT("Thread already running. Removing from Thread: 0x%p\n",
TimerThread);
+ /* Get the Thread. */
+ TimerThread = CONTAINING_RECORD(Timer->TimerApc.Thread,
+ ETHREAD,
+ Tcb);
/* Lock its active list */
KeAcquireSpinLockAtDpcLevel(&TimerThread->ActiveTimerListLock);
/* Remove it */
RemoveEntryList(&TimerThread->ActiveTimerListHead);
+ Timer->ApcAssociated = FALSE;
/* Unlock the list */
KeReleaseSpinLockFromDpcLevel(&TimerThread->ActiveTimerListLock);
@@ -700,14 +637,12 @@
/* Cancel the Timer */
KeCancelTimer(&Timer->KeTimer);
KeRemoveQueueDpc(&Timer->TimerDpc);
- KeRemoveQueueApc(&Timer->TimerApc);
- Timer->ApcAssociated = FALSE;
- KillTimer = TRUE;
-
- } else {
-
+ if (KeRemoveQueueApc(&Timer->TimerApc)) DerefsToDo = 2;
+ DerefsToDo++;
+ }
+ else
+ {
/* If timer was disabled, we still need to cancel it */
- DPRINT("No APCs. Simply cancelling\n");
KeCancelTimer(&Timer->KeTimer);
}
@@ -715,29 +650,27 @@
State = KeReadStateTimer(&Timer->KeTimer);
/* Handle Wake Timers */
- DPRINT("Doing Wake Semantics\n");
KeAcquireSpinLockAtDpcLevel(&ExpWakeListLock);
- if (WakeTimer && !Timer->WakeTimer)
+ if ((WakeTimer) && !(Timer->WakeTimerListEntry.Flink))
{
/* Insert it into the list */
- Timer->WakeTimer = TRUE;
InsertTailList(&ExpWakeList, &Timer->WakeTimerListEntry);
}
- else if (!WakeTimer && Timer->WakeTimer)
+ else if (!(WakeTimer) && (Timer->WakeTimerListEntry.Flink))
{
/* Remove it from the list */
RemoveEntryList(&Timer->WakeTimerListEntry);
- Timer->WakeTimer = FALSE;
+ Timer->WakeTimerListEntry.Flink = NULL;
}
KeReleaseSpinLockFromDpcLevel(&ExpWakeListLock);
/* Set up the APC Routine if specified */
+ Timer->Period = Period;
if (TimerApcRoutine)
{
/* Initialize the APC */
- DPRINT("Initializing APC: 0x%p\n", Timer->TimerApc);
KeInitializeApc(&Timer->TimerApc,
- &CurrentThread->Tcb,
+ &Thread->Tcb,
CurrentApcEnvironment,
&ExpTimerApcKernelRoutine,
(PKRUNDOWN_ROUTINE)NULL,
@@ -746,31 +679,30 @@
TimerContext);
/* Lock the Thread's Active List and Insert */
- KeAcquireSpinLockAtDpcLevel(&CurrentThread->ActiveTimerListLock);
- InsertTailList(&CurrentThread->ActiveTimerListHead,
+ KeAcquireSpinLockAtDpcLevel(&Thread->ActiveTimerListLock);
+ InsertTailList(&Thread->ActiveTimerListHead,
&Timer->ActiveTimerListEntry);
- KeReleaseSpinLockFromDpcLevel(&CurrentThread->ActiveTimerListLock);
-
+ Timer->ApcAssociated = TRUE;
+ KeReleaseSpinLockFromDpcLevel(&Thread->ActiveTimerListLock);
+
+ /* One less dereference to do */
+ DerefsToDo--;
}
/* Enable and Set the Timer */
- DPRINT("Setting Kernel Timer\n");
KeSetTimerEx(&Timer->KeTimer,
TimerDueTime,
Period,
- TimerApcRoutine ? &Timer->TimerDpc : 0);
- Timer->ApcAssociated = TimerApcRoutine ? TRUE : FALSE;
+ TimerApcRoutine ? &Timer->TimerDpc : NULL);
/* Unlock the Timer */
KeReleaseSpinLock(&Timer->Lock, OldIrql);
/* Dereference if it was previously enabled */
- if (!TimerApcRoutine) ObDereferenceObject(Timer);
- if (KillTimer) ObDereferenceObject(Timer);
- DPRINT("Finished Setting the Timer\n");
+ if (DerefsToDo) ObDereferenceObjectEx(Timer, DerefsToDo);
/* Make sure it's safe to write to the handle */
- if(PreviousState != NULL)
+ if (PreviousState)
{
_SEH_TRY
{
Modified: trunk/reactos/ntoskrnl/ex/work.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ex/work.c?rev=254…
==============================================================================
--- trunk/reactos/ntoskrnl/ex/work.c (original)
+++ trunk/reactos/ntoskrnl/ex/work.c Mon Jan 15 10:33:42 2007
@@ -617,8 +617,8 @@
*--*/
VOID
NTAPI
-ExQueueWorkItem(PWORK_QUEUE_ITEM WorkItem,
- WORK_QUEUE_TYPE QueueType)
+ExQueueWorkItem(IN PWORK_QUEUE_ITEM WorkItem,
+ IN WORK_QUEUE_TYPE QueueType)
{
PEX_WORK_QUEUE WorkQueue = &ExWorkerQueue[QueueType];
ASSERT(QueueType < MaximumWorkQueue);
Modified: trunk/reactos/ntoskrnl/include/internal/ex.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/include/internal/…
==============================================================================
--- trunk/reactos/ntoskrnl/include/internal/ex.h (original)
+++ trunk/reactos/ntoskrnl/include/internal/ex.h Mon Jan 15 10:33:42 2007
@@ -21,6 +21,19 @@
ULONG ExpUnicodeCaseTableDataOffset;
PVOID ExpNlsSectionPointer;
+typedef struct _ETIMER
+{
+ KTIMER KeTimer;
+ KAPC TimerApc;
+ KDPC TimerDpc;
+ LIST_ENTRY ActiveTimerListEntry;
+ KSPIN_LOCK Lock;
+ LONG Period;
+ BOOLEAN ApcAssociated;
+ BOOLEAN WakeTimer;
+ LIST_ENTRY WakeTimerListEntry;
+} ETIMER, *PETIMER;
+
#define MAX_FAST_REFS 7
#define EX_OBJ_TO_HDR(eob) ((POBJECT_HEADER)((ULONG_PTR)(eob) & \
Modified: trunk/reactos/ntoskrnl/lpc/close.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/lpc/close.c?rev=2…
==============================================================================
--- trunk/reactos/ntoskrnl/lpc/close.c (original)
+++ trunk/reactos/ntoskrnl/lpc/close.c Mon Jan 15 10:33:42 2007
@@ -180,7 +180,7 @@
/* Loop queued messages */
ListHead = &Port->MsgQueue.ReceiveHead;
NextEntry = ListHead->Flink;
- while (ListHead != NextEntry)
+ while ((NextEntry) && (ListHead != NextEntry))
{
/* Get the message */
Message = CONTAINING_RECORD(NextEntry, LPCP_MESSAGE, Entry);
Modified: trunk/reactos/ntoskrnl/ob/obhandle.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ob/obhandle.c?rev…
==============================================================================
--- trunk/reactos/ntoskrnl/ob/obhandle.c (original)
+++ trunk/reactos/ntoskrnl/ob/obhandle.c Mon Jan 15 10:33:42 2007
@@ -1969,10 +1969,7 @@
ExSweepHandleTable(HandleTable,
ObpCloseHandleCallback,
&Context);
- if (HandleTable->HandleCount != 0)
- {
- DPRINT1("FIXME: %d handles remain!\n", HandleTable->HandleCount);
- }
+ ASSERT(HandleTable->HandleCount == 0);
/* Leave the critical region */
KeLeaveCriticalRegion();
Modified: trunk/reactos/subsystems/win32/csrss/api/wapi.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/csrss/api…
==============================================================================
--- trunk/reactos/subsystems/win32/csrss/api/wapi.c (original)
+++ trunk/reactos/subsystems/win32/csrss/api/wapi.c Mon Jan 15 10:33:42 2007
@@ -225,9 +225,12 @@
/* If the connection was closed, handle that */
if (Request->Header.u2.s2.Type == LPC_PORT_CLOSED)
{
- DPRINT1("Port died, oh well\n");
+ DPRINT("Port died, oh well\n");
CsrFreeProcessData( Request->Header.ClientId.UniqueProcess );
- break;
+ //NtClose()
+ Reply = NULL;
+ continue;
+ //break;
}
if (Request->Header.u2.s2.Type == LPC_CONNECTION_REQUEST)
@@ -239,7 +242,7 @@
if (Request->Header.u2.s2.Type == LPC_CLIENT_DIED)
{
- DPRINT1("Clietn died, oh well\n");
+ DPRINT("Clietn died, oh well\n");
Reply = NULL;
continue;
}
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