Source code of Windows XP (NT5)
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/*++ BUILD Version: 0001
* * WOW v1.0 * * Copyright (c) 1991, Microsoft Corporation * * TDB.H * 16-bit Kernel Task Data Block * * History: * Created 11-Feb-1992 by Matt Felton (mattfe) - from 16 bit tdb.inc * 7-apr-1992 mattfe updated to be win 3.1 compatible *--*/
/* XLATOFF */#ifndef __TDB16_H
#define __TDB16_H
/* XLATON */
/*
* NewExeHdr struct offsets. WOW32 uses these for getting expected winversion * directly from the exehdr. * */
#define NE_LOWINVER_OFFSET 0x3e
#define NE_HIWINVER_OFFSET 0x0c
#define FLAG_NE_PROPFONT 0x2000
/*
* Task Data Block - 16 Bit Kernel Data Structure * * Contains all 16 bit task specific data. * */
#define numTaskInts 7
#define THUNKELEM 8 // (62*8) = 512-16 (low arena overhead)
#define THUNKSIZE 8
/* XLATOFF */#pragma pack(2)
/* XLATON */
typedef struct TDB { /* tdb16 */
WORD TDB_next ; // next task in dispatch queue
WORD TDB_taskSP ; // Saved SS:SP for this task
WORD TDB_taskSS ; //
WORD TDB_nEvents ; // Task event counter
BYTE TDB_priority ; // Task priority (0 is highest)
#ifdef WOWONLY
BYTE TDB_thread_ordinal ; // ordinal number of this thread
WORD TDB_thread_next ; // next thread
WORD TDB_thread_tdb ; // the real TDB for this task
WORD TDB_thread_list ; // list of allocated thread structures
#else // WOWONLY
BYTE TDB_iMonitor; // USER maintains this field for multiple monitor support
WORD TDB_Unused2; // BUGBUG - this field was only used for old looking glass (os/2 app support) stuff and should be removed
DWORD TDB_Unused3; // BUGBUG - this field was only used for old looking glass (os/2 app support) stuff and should be removed
#endif // else WOWONLY
DWORD TDB_ptrace_appentry; // used for cvw support to break at app's entry
//
// COMPATIBILITY WARNING: the above field(s) used to be
//
// WORD TDB_thread_free ; // free list of availble thread structures
// WORD TDB_thread_count ; // total count of tread structures
WORD TDB_FCW ; // Floating point control word
BYTE TDB_flags ; // Task flags
BYTE TDB_filler ; // keep word aligned
WORD TDB_ErrMode ; // Error mode for this task
WORD TDB_ExpWinVer ; // Expected Windows version for this task
WORD TDB_Module ; // Task module handle to free in killtask
WORD TDB_pModule ; // Pointer to the module database.
WORD TDB_Queue ; // Task Event Queue pointer
WORD TDB_Parent ; // TDB of the task that started this up
#ifdef WOWONLY
WORD TDB_SigAction ; // Action for app task signal
DWORD TDB_ASignalProc ; // App's Task Signal procedure address
#else // WOWONLY
WORD TDB_Unused5; // BUGBUG - this field was only used for old looking glass (os/2 app support) stuff and should be removed
DWORD TDB_Unused6; // BUGBUG - this field was only used for old looking glass (os/2 app support) stuff and should be removed
#endif // else WOWONLY
DWORD TDB_USignalProc ; // User's Task Signal procedure address
DWORD TDB_GNotifyProc ; // Task global discard notify proc.
DWORD TDB_INTVECS[numTaskInts] ; // Task specfic harare interrupts
WORD TDB_CompatFlags ; // Compatibility flags
WORD TDB_CompatFlags2 ; // Upper 16 bits
//
// SEVERE COMPATIBILITY WARNING: The following five fields were
// used by NT WOW, and stomps some MEoW fields, namely:
// TDB_selTIB, TDB_ThreadHandle, TDB_selHeap32 and TDB_Unused7.
// Those fields have been put at the end.
//
#ifdef WOW
WORD TDB_CompatHandle ; // for dBase bug
WORD TDB_WOWCompatFlagsEx ; // More WOW Compatibility flags
WORD TDB_WOWCompatFlagsEx2 ; // Upper 16 bits
BYTE TDB_Free[3] ; // Filler to keep TDB size unchanged
BYTE TDB_cLibrary ; // tracks add/del of ALL libs in system EMS
#else // WOW
WORD TDB_selTIB; // Selector to thread/task's TIB
DWORD TDB_ThreadHandle; // Win32 thread handle
WORD TDB_selHeap32; // Win32 16-bit heap, for atoms
WORD TDB_Unused7; // Filler to keep TDB size unchanged
#endif // else WOW
DWORD TDB_PHT ; // (HANDLE:OFFSET) to private handle table
WORD TDB_PDB ; // MSDOS Process Data Block (PDB)
DWORD TDB_DTA ; // MSDOS Disk Transfer Address
BYTE TDB_Drive ; // MSDOS current drive
BYTE TDB_Directory[65] ; // *** not used starting with win95
// TDB_Directory is not used anymore and is not tracked
// use TDB_LFNDirectory at end of structure.
// This field is still kept intact as OLE might be depending on this
#ifdef WOWONLY
WORD TDB_Validity ; // initial AX to be passed to a task
#else // WOWONLY
WORD TDB_Unused8; // BUGBUG - this field was only used for old looking glass (os/2 app support) stuff and should be removed
#endif // else WOWONLY
WORD TDB_Yield_to ; // DirectedYield arg stored here
WORD TDB_LibInitSeg ; // segment address of libraries to init
WORD TDB_LibInitOff ; // MakeProcInstance thunks live here.
WORD TDB_MPI_Sel ; // Code selector for thunks
WORD TDB_MPI_Thunks[((THUNKELEM*THUNKSIZE)/2)]; //
BYTE TDB_ModName[8] ; // Name of Module.
WORD TDB_sig ; // Signature word to detect bogus code
#ifndef WOW
DWORD TDB_LastError; // Last error
#endif // ndef WOW
#ifdef WOW
DWORD TDB_ThreadID ; // 32-Bit Thread ID for this Task (use TDB_Filler Above)
DWORD TDB_hThread ; // 32-bit Thread Handle for this task
WORD TDB_WOWCompatFlags; // WOW Compatibility flags
WORD TDB_WOWCompatFlags2; // WOW Compatibility flags
#ifdef FE_SB
WORD TDB_WOWCompatFlagsJPN; // WOW Compatibility flags for JAPAN
WORD TDB_WOWCompatFlagsJPN2; // WOW Compatibility flags for JAPAN
#endif // FE_SB
DWORD TDB_vpfnAbortProc; // printer AbortProc
#endif // def WOW
BYTE TDB_LFNDirectory[260]; // Long directory name
#ifdef WOW
#ifndef WOWONLY
WORD TDB_selTIB; // Selector to thread/task's TIB
DWORD TDB_ThreadHandle; // Win32 thread handle
WORD TDB_selHeap32; // Win32 16-bit heap, for atoms
WORD TDB_Unused7; // Filler to keep TDB size unchanged
#endif // ndef WOWONLY
#endif // def WOW
} TDB16;typedef TDB16 UNALIGNED *PTDB16;typedef TDB16 *LPTDB16;
#ifndef __KERNEL32_H
/*ASM
TDBsize = SIZE TDB*/#endif // ndef__KERNEL32_H
/* XLATOFF */
#ifndef __KERNEL32_H
#ifndef WOW32_EXTENSIONS
typedef TDB16 TDB;typedef TDB UNALIGNED *PTDB;
#endif // ndef WOW32_EXTENSIONS
#endif // ndef__KERNEL32_H
// NEW_EXE1 struc from core\inc\newexe.inc
typedef struct tagNEW_EXE1 { WORD ne_blah1; WORD ne_usage; WORD ne_blah2; WORD ne_pnextexe; WORD ne_pautodata; WORD ne_pfileinfo; // OFSTRUCTEX offset in TDB_pModule
} NEW_EXE1;
// PDB16 comes from core\inc\pdb.inc
typedef struct tagPDB16 { WORD PDB16_Exit_Call; WORD PDB16_block_len; BYTE PDB16_pad1; BYTE PDB16_CPM_Call[5]; DWORD PDB16_Exit; DWORD PDB16_Ctrl_C; DWORD PDB16_Fatal_Abort; WORD PDB16_Parent_PID; BYTE PDB16_JFN_Table[20]; WORD PDB16_environ; DWORD PDB16_User_stack; WORD PDB16_JFN_Length; DWORD PDB16_JFN_Pointer; DWORD PDB16_Next_PDB; BYTE PDB16_InterCon; BYTE PDB16_Append; BYTE PDB16_Novell_Used[2]; WORD PDB16_Version; WORD PDB16_Chain; WORD PDB16_Partition; WORD PDB16_NextPDB; DWORD PDB16_GlobalHeap; DWORD PDB16_Entry_stack; BYTE PDB16_Call_system[5]; BYTE PDB16_PAD2[5]; WORD PDB16_DupRefCount; BYTE PDB16_5C_FCB[0x10]; BYTE PDB16_6C_FCB[0x14]; BYTE PDB16_DEF_DTA[0x80];} PDB16;
/* XLATON */
// signature word used to check validity of a TDB
#define TDB_SIGNATURE 'DT'
// TDB flags
// GDI will clear the TDBF_HOOKINT2F bit when enabling/disabling the
// DISPLAY driver, *dont* change or remove this bit without changing
// GDI. Toddla
//
#define TDBF_WINOLDAP 01 /* This app is WinOldAp. */
#define TDBF_EMSSHARE 02 /* This app shares EMS banks with MSDOS EXEC. */
#define TDBF_CACHECHECK 04 /* Used in CacheCompact to prevent revisitation. */
#ifdef WOWONLY
#define TDBF_OS2APP 0x08 // This is an OS/2 app.
#define TDBF_WIN32S 0x10 // This is Win32S app.
#else ; WOWONLY
#define TDBF_NEWTASK 0x08 // This task has not yet been scheduled
#endif ; WOWONLY
#define TDBF_KERNEL32 0x10 /* This is a Kernel32 thread */
#define TDBF_HGCLEANUP 0x20 /* Win32 app has ganged handles to clean up */
#define TDBF_HOOKINT21 0x40 // app hooks int 21H
#define TDBF_HOOKINT2F 0x80 // app hooks int 2FH
// This bit is defined for the TDB_Drive field
#define TDB_DIR_VALID 0x80
// NOTE TDB_ThreadID MUST be DWORD aligned or else it will fail on MIPS
/* XLATOFF */#pragma pack()
/* XLATON */
/* XLATOFF */#endif // ndef __TDB16_H
/* XLATON */
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