[tkreuzer] 32865: cleanup gdiobj.c: - use small header - reorder code - replace some #if GDI_DEBUG code with macros - remove old GdiHdrXxx macros - replace some pointless inline functions with the real code - NtGdiExtGetObjectW: NTAPI -> W32KAPI APIENTRY
4 Apr
2008
4 Apr
'08
11:35 p.m.
Author: tkreuzer
Date: Fri Apr 4 18:35:43 2008
New Revision: 32865
URL: http://svn.reactos.org/svn/reactos?rev=32865&view=rev
Log:
cleanup gdiobj.c:
- use small header
- reorder code
- replace some #if GDI_DEBUG code with macros
- remove old GdiHdrXxx macros
- replace some pointless inline functions with the real code
- NtGdiExtGetObjectW: NTAPI -> W32KAPI APIENTRY
Modified:
trunk/reactos/subsystems/win32/win32k/objects/gdiobj.c
Modified: trunk/reactos/subsystems/win32/win32k/objects/gdiobj.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/ob…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/objects/gdiobj.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/objects/gdiobj.c [iso-8859-1] Fri Apr 4
18:35:43 2008
@@ -1,26 +1,12 @@
/*
- * ReactOS W32 Subsystem
- * Copyright (C) 1998 - 2004 ReactOS Team
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * PROJECT: ReactOS win32 kernel mode subsystem
+ * LICENSE: GPL - See COPYING in the top level directory
+ * FILE: subsystems/win32/win32k/objects/gdiobj.c
+ * PURPOSE: General GDI object manipulation routines
+ * PROGRAMMERS: ...
*/
-/*
- * GDIOBJ.C - GDI object manipulation routines
- *
- * $Id$
- */
+
+/** INCLUDES ******************************************************************/
#include <w32k.h>
@@ -42,22 +28,16 @@
#define GDI_HANDLE_GET_ENTRY(HandleTable, h) \
(&(HandleTable)->Entries[GDI_HANDLE_GET_INDEX((h))])
-#define GDIBdyToHdr(body) \
- ((PGDIOBJHDR)(body) - 1)
-#define GDIHdrToBdy(hdr) \
- (PGDIOBJ)((PGDIOBJHDR)(hdr) + 1)
-
/* apparently the first 10 entries are never used in windows as they are empty */
#define RESERVE_ENTRIES_COUNT 10
-/*
- * Dummy GDI Cleanup Callback
- */
-static BOOL INTERNAL_CALL
-GDI_CleanupDummy(PVOID ObjectBody)
-{
- return TRUE;
-}
+#define DelayExecution() \
+ DPRINT("%s:%i: Delay\n", __FILE__, __LINE__); \
+ KeDelayExecutionThread(KernelMode, FALSE, &ShortDelay)
+
+static BOOL INTERNAL_CALL GDI_CleanupDummy(PVOID ObjectBody);
+
+/** GLOBALS *******************************************************************/
typedef struct
{
@@ -107,101 +87,7 @@
static LARGE_INTEGER ShortDelay;
-#define DelayExecution() \
- DPRINT("%s:%i: Delay\n", __FILE__, __LINE__); \
- KeDelayExecutionThread(KernelMode, FALSE, &ShortDelay)
-
-/*!
- * Allocate GDI object table.
- * \param Size - number of entries in the object table.
-*/
-PGDI_HANDLE_TABLE INTERNAL_CALL
-GDIOBJ_iAllocHandleTable(OUT PSECTION_OBJECT *SectionObject)
-{
- PGDI_HANDLE_TABLE HandleTable = NULL;
- LARGE_INTEGER htSize;
- UINT ObjType;
- ULONG ViewSize = 0;
- NTSTATUS Status;
-
- ASSERT(SectionObject != NULL);
-
- htSize.QuadPart = sizeof(GDI_HANDLE_TABLE);
-
- Status = MmCreateSection((PVOID*)SectionObject,
- SECTION_ALL_ACCESS,
- NULL,
- &htSize,
- PAGE_READWRITE,
- SEC_COMMIT,
- NULL,
- NULL);
- if (!NT_SUCCESS(Status))
- return NULL;
-
- /* FIXME - use MmMapViewInSessionSpace once available! */
- Status = MmMapViewInSystemSpace(*SectionObject,
- (PVOID*)&HandleTable,
- &ViewSize);
- if (!NT_SUCCESS(Status))
- {
- ObDereferenceObject(*SectionObject);
- *SectionObject = NULL;
- return NULL;
- }
-
- RtlZeroMemory(HandleTable, sizeof(GDI_HANDLE_TABLE));
-
- HandleTable->LookasideLists = ExAllocatePoolWithTag(NonPagedPool,
- BASE_OBJTYPE_COUNT * sizeof(PAGED_LOOKASIDE_LIST),
- TAG_GDIHNDTBLE);
- if (HandleTable->LookasideLists == NULL)
- {
- MmUnmapViewInSystemSpace(HandleTable);
- ObDereferenceObject(*SectionObject);
- *SectionObject = NULL;
- return NULL;
- }
-
- for (ObjType = 0; ObjType < BASE_OBJTYPE_COUNT; ObjType++)
- {
- if (ObjTypeInfo[ObjType].bUseLookaside)
- {
- ExInitializePagedLookasideList(HandleTable->LookasideLists + ObjType,
- NULL,
- NULL,
- 0,
- ObjTypeInfo[ObjType].ulBodySize,
- ObjTypeInfo[ObjType].Tag,
- 0);
- }
- }
-
- ShortDelay.QuadPart = -5000LL; /* FIXME - 0.5 ms? */
-
- HandleTable->FirstFree = 0;
- HandleTable->FirstUnused = RESERVE_ENTRIES_COUNT;
-
- return HandleTable;
-}
-
-static __inline PPAGED_LOOKASIDE_LIST
-FindLookasideList(ULONG TypeIndex)
-{
- return GdiHandleTable->LookasideLists + TypeIndex;
-}
-
-static __inline BOOL
-RunCleanupCallback(PGDIOBJ pObj, ULONG TypeIndex)
-{
- return ((GDICLEANUPPROC)ObjTypeInfo[TypeIndex].CleanupProc)(pObj);
-}
-
-static __inline ULONG
-GetObjectSize(ULONG TypeIndex)
-{
- return ObjTypeInfo[TypeIndex].ulBodySize;
-}
+/** DEBUGGING *****************************************************************/
#ifdef GDI_DEBUG
@@ -325,9 +211,15 @@
CaptureStackBackTace((PVOID*)GDIHandleAllocator[index], GDI_STACK_LEVELS);
#define GDIDBG_CAPTURELOCKER(index) \
CaptureStackBackTace((PVOID*)GDIHandleLocker[index], GDI_STACK_LEVELS);
-
#define GDIDBG_DUMPHANDLETABLE() \
IntDumpHandleTable(GdiHandleTable)
+#define GDIDBG_INITLOOPTRACE() \
+ ULONG Attempts = 0;
+#define GDIDBG_TRACELOOP(Handle, PrevThread, Thread) \
+ if ((++Attempts % 20) == 0) \
+ { \
+ DPRINT1("[%d] Handle 0x%p Locked by 0x%x (we're 0x%x)\n", Attempts,
Handle, PrevThread, Thread); \
+ }
#else
@@ -337,9 +229,96 @@
#define GDIDBG_CAPTUREALLOCATOR(index)
#define GDIDBG_CAPTURELOCKER(index)
#define GDIDBG_DUMPHANDLETABLE()
+#define GDIDBG_INITLOOPTRACE()
+#define GDIDBG_TRACELOOP(Handle, PrevThread, Thread)
#endif /* GDI_DEBUG */
+
+/** INTERNAL FUNCTIONS ********************************************************/
+
+/*
+ * Dummy GDI Cleanup Callback
+ */
+static BOOL INTERNAL_CALL
+GDI_CleanupDummy(PVOID ObjectBody)
+{
+ return TRUE;
+}
+
+/*!
+ * Allocate GDI object table.
+ * \param Size - number of entries in the object table.
+*/
+PGDI_HANDLE_TABLE INTERNAL_CALL
+GDIOBJ_iAllocHandleTable(OUT PSECTION_OBJECT *SectionObject)
+{
+ PGDI_HANDLE_TABLE HandleTable = NULL;
+ LARGE_INTEGER htSize;
+ UINT ObjType;
+ ULONG ViewSize = 0;
+ NTSTATUS Status;
+
+ ASSERT(SectionObject != NULL);
+
+ htSize.QuadPart = sizeof(GDI_HANDLE_TABLE);
+
+ Status = MmCreateSection((PVOID*)SectionObject,
+ SECTION_ALL_ACCESS,
+ NULL,
+ &htSize,
+ PAGE_READWRITE,
+ SEC_COMMIT,
+ NULL,
+ NULL);
+ if (!NT_SUCCESS(Status))
+ return NULL;
+
+ /* FIXME - use MmMapViewInSessionSpace once available! */
+ Status = MmMapViewInSystemSpace(*SectionObject,
+ (PVOID*)&HandleTable,
+ &ViewSize);
+ if (!NT_SUCCESS(Status))
+ {
+ ObDereferenceObject(*SectionObject);
+ *SectionObject = NULL;
+ return NULL;
+ }
+
+ RtlZeroMemory(HandleTable, sizeof(GDI_HANDLE_TABLE));
+
+ HandleTable->LookasideLists = ExAllocatePoolWithTag(NonPagedPool,
+ BASE_OBJTYPE_COUNT * sizeof(PAGED_LOOKASIDE_LIST),
+ TAG_GDIHNDTBLE);
+ if (HandleTable->LookasideLists == NULL)
+ {
+ MmUnmapViewInSystemSpace(HandleTable);
+ ObDereferenceObject(*SectionObject);
+ *SectionObject = NULL;
+ return NULL;
+ }
+
+ for (ObjType = 0; ObjType < BASE_OBJTYPE_COUNT; ObjType++)
+ {
+ if (ObjTypeInfo[ObjType].bUseLookaside)
+ {
+ ExInitializePagedLookasideList(HandleTable->LookasideLists + ObjType,
+ NULL,
+ NULL,
+ 0,
+ ObjTypeInfo[ObjType].ulBodySize,
+ ObjTypeInfo[ObjType].Tag,
+ 0);
+ }
+ }
+
+ ShortDelay.QuadPart = -5000LL; /* FIXME - 0.5 ms? */
+
+ HandleTable->FirstFree = 0;
+ HandleTable->FirstUnused = RESERVE_ENTRIES_COUNT;
+
+ return HandleTable;
+}
static void FASTCALL
LockErrorDebugOutput(HGDIOBJ hObj, PGDI_TABLE_ENTRY Entry, LPSTR Function)
@@ -491,9 +470,8 @@
POBJ newObject = NULL;
HANDLE CurrentProcessId, LockedProcessId;
UCHAR TypeIndex;
-#ifdef GDI_DEBUG
- ULONG Attempts = 0;
-#endif
+
+ GDIDBG_INITLOOPTRACE();
W32Process = PsGetCurrentProcessWin32Process();
/* HACK HACK HACK: simplest-possible quota implementation - don't allow a
process
@@ -519,7 +497,7 @@
CurrentProcessId = PsGetCurrentProcessId();
LockedProcessId = (HANDLE)((ULONG_PTR)CurrentProcessId | 0x1);
-// RtlZeroMemory(newObject, GetObjectSize(TypeIndex));
+// RtlZeroMemory(newObject, ObjTypeInfo[TypeIndex].ulBodySize);
/* On Windows the higher 16 bit of the type field don't contain the
full type from the handle, but the base type.
@@ -573,12 +551,7 @@
}
else
{
-#ifdef GDI_DEBUG
- if (++Attempts > 20)
- {
- DPRINT1("[%d]Waiting on handle in index 0x%x\n", Attempts,
Index);
- }
-#endif
+ GDIDBG_TRACELOOP(Index, PrevProcId, CurrentProcessId);
/* damn, someone is trying to lock the object even though it doesn't
even exist anymore, wait a little and try again!
FIXME - we shouldn't loop forever! Give up after some time! */
@@ -647,9 +620,8 @@
HANDLE ProcessId, LockedProcessId, PrevProcId;
ULONG HandleType, HandleUpper, TypeIndex;
BOOL Silent;
-#ifdef GDI_DEBUG
- ULONG Attempts = 0;
-#endif
+
+ GDIDBG_INITLOOPTRACE();
DPRINT("GDIOBJ_FreeObj: hObj: 0x%08x\n", hObj);
@@ -719,7 +691,7 @@
/* call the cleanup routine. */
TypeIndex = GDI_OBJECT_GET_TYPE_INDEX(HandleType);
- Ret = RunCleanupCallback(Object, TypeIndex);
+ Ret = ObjTypeInfo[TypeIndex].CleanupProc(Object);
/* Now it's time to free the memory */
GDIOBJ_FreeObj(Object, TypeIndex);
@@ -745,12 +717,8 @@
}
else if (PrevProcId == LockedProcessId)
{
-#ifdef GDI_DEBUG
- if (++Attempts > 20)
- {
- DPRINT1("[%d]Waiting on 0x%x\n", Attempts, hObj);
- }
-#endif
+ GDIDBG_TRACELOOP(hObj, PrevProcId, ProcessId);
+
/* the object is currently locked, wait some time and try again.
FIXME - we shouldn't loop forever! Give up after some time! */
DelayExecution();
@@ -1201,9 +1169,8 @@
HANDLE ProcessId, LockedProcessId, PrevProcId;
PW32THREAD Thread;
HGDIOBJ hObj;
-#ifdef GDI_DEBUG
- ULONG Attempts = 0;
-#endif
+
+ GDIDBG_INITLOOPTRACE();
ASSERT(phObj);
hObj = *phObj;
@@ -1287,12 +1254,8 @@
}
else
{
-#ifdef GDI_DEBUG
- if (++Attempts > 20)
- {
- DPRINT1("[%d]Locked by 0x%x (we're 0x%x)\n",
Attempts, PrevThread, Thread);
- }
-#endif
+ GDIDBG_TRACELOOP(hObj, PrevThread, Thread);
+
/* WTF?! The object is already locked by a different thread!
Release the lock, wait a bit and try again!
FIXME - we should give up after some time unless we want to wait
forever! */
@@ -1310,12 +1273,8 @@
}
else if (PrevProcId == LockedProcessId)
{
-#ifdef GDI_DEBUG
- if (++Attempts > 20)
- {
- DPRINT1("[%d]Waiting on 0x%x\n", Attempts, hObj);
- }
-#endif
+ GDIDBG_TRACELOOP(hObj, PrevProcId, ProcessId);
+
/* the object is currently locked, wait some time and try again.
FIXME - we shouldn't loop forever! Give up after some time! */
DelayExecution();
@@ -1337,9 +1296,8 @@
PGDI_TABLE_ENTRY Entry;
HANDLE ProcessId, LockedProcessId, PrevProcId;
PW32THREAD Thread;
-#ifdef GDI_DEBUG
- ULONG Attempts = 0;
-#endif
+
+ GDIDBG_INITLOOPTRACE();
DPRINT("GDIOBJ_SetOwnership: hObj: 0x%x, NewProcess: 0x%x\n", ObjectHandle,
(NewOwner ? PsGetProcessId(NewOwner) : 0));
@@ -1408,12 +1366,8 @@
}
else
{
-#ifdef GDI_DEBUG
- if (++Attempts > 20)
- {
- DPRINT1("[%d]Locked by 0x%x (we're 0x%x)\n",
Attempts, PrevThread, Thread);
- }
-#endif
+ GDIDBG_TRACELOOP(ObjectHandle, PrevThread, Thread);
+
/* WTF?! The object is already locked by a different thread!
Release the lock, wait a bit and try again! DO reset the pid lock
so we make sure we don't access invalid memory in case the
object is
@@ -1434,12 +1388,8 @@
}
else if (PrevProcId == LockedProcessId)
{
-#ifdef GDI_DEBUG
- if (++Attempts > 20)
- {
- DPRINT1("[%d]Waiting on 0x%x\n", Attempts, ObjectHandle);
- }
-#endif
+ GDIDBG_TRACELOOP(ObjectHandle, PrevProcId, ProcessId);
+
/* the object is currently locked, wait some time and try again.
FIXME - we shouldn't loop forever! Give up after some time! */
DelayExecution();
@@ -1470,9 +1420,8 @@
PGDI_TABLE_ENTRY FromEntry;
PW32THREAD Thread;
HANDLE FromProcessId, FromLockedProcessId, FromPrevProcId;
-#ifdef GDI_DEBUG
- ULONG Attempts = 0;
-#endif
+
+ GDIDBG_INITLOOPTRACE();
DPRINT("GDIOBJ_CopyOwnership: from: 0x%x, to: 0x%x\n", CopyFrom, CopyTo);
@@ -1524,12 +1473,8 @@
}
else
{
-#ifdef GDI_DEBUG
- if (++Attempts > 20)
- {
- DPRINT1("[%d]Locked by 0x%x (we're 0x%x)\n",
Attempts, PrevThread, Thread);
- }
-#endif
+ GDIDBG_TRACELOOP(CopyFrom, PrevThread, Thread);
+
/* WTF?! The object is already locked by a different thread!
Release the lock, wait a bit and try again! DO reset the pid lock
so we make sure we don't access invalid memory in case the
object is
@@ -1549,12 +1494,8 @@
}
else if (FromPrevProcId == FromLockedProcessId)
{
-#ifdef GDI_DEBUG
- if (++Attempts > 20)
- {
- DPRINT1("[%d]Waiting on 0x%x\n", Attempts, CopyFrom);
- }
-#endif
+ GDIDBG_TRACELOOP(CopyFrom, FromPrevProcId, FromProcessId);
+
/* the object is currently locked, wait some time and try again.
FIXME - we shouldn't loop forever! Give up after some time! */
DelayExecution();
@@ -1605,6 +1546,8 @@
return MappedView;
}
+
+/** PUBLIC FUNCTIONS **********************************************************/
W32KAPI
HANDLE
@@ -1716,8 +1659,9 @@
return Result;
}
+W32KAPI
INT
-NTAPI
+APIENTRY
NtGdiExtGetObjectW(IN HANDLE hGdiObj,
IN INT cbCount,
OUT LPVOID lpBuffer)
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