[ros-dev] About GDIOBJHDR header changes

[Alex Ionescu]

Wrong, it should be like this:

typedef struct _BASEOBJECT
{
      HANDLE hHmgr;
      ULONG ulShareCount;
      USHORT cExclusiveLock;
      USHORT BaseFlags;
      PW32THREAD Tid;
} BASEOBJECT, *POBJ;

typedef struct _EINFO
{
     union
     {
         POBJ pobj;
         HOBJ hFree;
     };
} EINFO, *PEINFO;

typedef struct _OBJECTOWNER_S
{
      ULONG Lock:1;
      ULONG Pid_Shifted:31;
} OBJECTOWNER_S, *POBJECTOWNER_S;

typedef struct _OBJECTOWNER
{
     union
     {
          OBJECTOWNER_S Share;
          ULONG ulObj;
     };
} OBJECTOWNER, *POBJECTOWNER;

typedef struct _ENTRY
{
      EINFO einfo;
      OBJECTOWNER ObjectOwner;
      USHORT FullUnique;
      UCHAR Objt;
      UCHAR Flags;
      PVOID pUser;
} ENTRY, DD_ENTRY, *PENTRY, *PDD_ENTRY;

Also, now you don't need to do Pid & 0xFFFFFFFC in your code, you can  
just use .Pid_Shifted directly.

On 31-Dec-07, at 8:42 AM, Magnus Olsen wrote:

> what I reading the _ENTRY should look like this as final version,  
> correct me
> if I am wrong
>
>  typedef struct _ENTRY
> {
>     union
>     {
>         PDD_BASEOBJECT pobj;
>         HANDLE hFree;
>     } einfo;
>
>     union
>     {
>          ULONG ulObj;
>          struct
>          {
>                 USHORT Count;
>                 USHORT Pid_Shifted;
>          } Share;
>     } ObjectOwner;
>     USHORT FullUnique;
>     UCHAR Objt;
>     UCHAR Flags;
>     PVOID pUser;
> } DD_ENTRY, *PDD_ENTRY;
>
> ----- Original Message -----
> From: "James Tabor" <jimtabor.rosdev at gmail.com>
> To: "ReactOS Development List" <ros-dev at reactos.org>
> Sent: Monday, December 31, 2007 7:46 AM
> Subject: Re: [ros-dev] About GDIOBJHDR header changes
>
>
>> Hi!
>>
>> On Dec 30, 2007 10:43 PM, Alex Ionescu <ionucu at videotron.ca> wrote:
>>>  Hi,
>>>
>>> lkd> dt win32k!_BASEOBJECT -r
>>>    +0x000 hHmgr            : Ptr32 Void
>>>    +0x004 ulShareCount     : Uint4B
>>>    +0x008 cExclusiveLock   : Uint2B
>>>    +0x00a BaseFlags        : Uint2B
>>>    +0x00c Tid              : Ptr32 _W32THREAD
>>>       +0x000 pEThread         : Ptr32 _ETHREAD
>>>       +0x004 RefCount         : Uint4B
>>>       +0x008 ptlW32           : Ptr32 _TL
>>>          +0x000 next             : Ptr32 _TL
>>>          +0x004 pobj             : Ptr32 Void
>>>          +0x008 pfnFree          : Ptr32           void
>>>       +0x00c pgdiDcattr       : Ptr32 Void
>>>       +0x010 pgdiBrushAttr    : Ptr32 Void
>>>       +0x014 pUMPDObjs        : Ptr32 Void
>>>       +0x018 pUMPDHeap        : Ptr32 Void
>>>       +0x01c pUMPDObj         : Ptr32 Void
>>>       +0x020 GdiTmpTgoList    : _LIST_ENTRY
>>>          +0x000 Flink            : Ptr32 _LIST_ENTRY
>>>          +0x004 Blink            : Ptr32 _LIST_ENTRY
>> I like this one:
>> lkd> dt win32k!_W32THREAD -r
>>   +0x000 pEThread         : Ptr32 _ETHREAD
>>   +0x004 RefCount         : Uint4B
>>   +0x008 ptlW32           : Ptr32 _TL
>>      +0x000 next             : Ptr32 _TL
>>         +0x000 next             : Ptr32 _TL
>>         +0x004 pobj             : Ptr32 Void
>>         +0x008 pfnFree          : Ptr32
>>      +0x004 pobj             : Ptr32 Void
>>      +0x008 pfnFree          : Ptr32
>>   +0x00c pgdiDcattr       : Ptr32 Void
>>   +0x010 pgdiBrushAttr    : Ptr32 Void
>>   +0x014 pUMPDObjs        : Ptr32 Void
>>   +0x018 pUMPDHeap        : Ptr32 Void
>>   +0x01c dwEngAcquireCount : Uint4B
>>   +0x020 pSemTable        : Ptr32 Void
>>   +0x024 pUMPDObj         : Ptr32 Void
>>
>> This sets on top of thread info above the "USER specific fields".
>> Thanks!
>> James
>>
>> Ref:
>> http://forum.sysinternals.com/forum_posts.asp?TID=901
>> _______________________________________________
>> Ros-dev mailing list
>> Ros-dev at reactos.org
>> http://www.reactos.org/mailman/listinfo/ros-dev
>
> _______________________________________________
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Best regards,
Alex Ionescu

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