/* $Id: task.h,v 1.3 2000-02-05 02:42:19 sandervl Exp $ */ /* * Task definitions * * Copyright 1995 Alexandre Julliard */ #ifndef __WINE_TASK_H #define __WINE_TASK_H #include "windef.h" #include "pshpack1.h" /* Process database (i.e. a normal DOS PSP) */ typedef struct { WORD int20; /* 00 int 20h instruction */ WORD nextParagraph; /* 02 Segment of next paragraph */ BYTE reserved1; BYTE dispatcher[5]; /* 05 Long call to DOS */ FARPROC16 savedint22 WINE_PACKED; /* 0a Saved int 22h handler */ FARPROC16 savedint23 WINE_PACKED; /* 0e Saved int 23h handler */ FARPROC16 savedint24 WINE_PACKED; /* 12 Saved int 24h handler */ WORD parentPSP; /* 16 Selector of parent PSP */ BYTE fileHandles[20]; /* 18 Open file handles */ HANDLE16 environment; /* 2c Selector of environment */ WORD reserved2[2]; WORD nbFiles; /* 32 Number of file handles */ SEGPTR fileHandlesPtr; /* 34 Pointer to file handle table */ HANDLE16 hFileHandles; /* 38 Handle to fileHandlesPtr */ WORD reserved3[17]; BYTE fcb1[16]; /* 5c First FCB */ BYTE fcb2[20]; /* 6c Second FCB */ BYTE cmdLine[128]; /* 80 Command-line (first byte is len)*/ BYTE padding[16]; /* Some apps access beyond the end of the cmd line */ } PDB16; /* Segment containing MakeProcInstance() thunks */ typedef struct { WORD next; /* Selector of next segment */ WORD magic; /* Thunks signature */ WORD unused; WORD free; /* Head of the free list */ WORD thunks[4]; /* Each thunk is 4 words long */ } THUNKS; #define THUNK_MAGIC ('P' | ('T' << 8)) struct _TEB; struct _WSINFO; struct _NE_MODULE; /* signal proc typedef */ typedef void (* CALLBACK USERSIGNALPROC)(HANDLE16, UINT16, UINT16, HINSTANCE16, HQUEUE16); /* Task database. See 'Windows Internals' p. 226. * Note that 16-bit OLE 2 libs like to read it directly * so we have to keep entry offsets as they are. */ typedef struct _TDB { HTASK16 hNext; /* 00 Selector of next TDB */ DWORD ss_sp WINE_PACKED; /* 02 Stack pointer of task */ WORD nEvents; /* 06 Events for this task */ INT16 priority; /* 08 Task priority, -32..15 */ WORD unused1; /* 0a */ HTASK16 hSelf; /* 0c Selector of this TDB */ HANDLE16 hPrevInstance; /* 0e Previous instance of module */ DWORD unused2; /* 10 */ WORD ctrlword8087; /* 14 80x87 control word */ WORD flags; /* 16 Task flags */ UINT16 error_mode; /* 18 Error mode (see SetErrorMode)*/ WORD version; /* 1a Expected Windows version */ HANDLE16 hInstance; /* 1c Instance handle for task */ HMODULE16 hModule; /* 1e Module handle */ HQUEUE16 hQueue; /* 20 Selector of task queue */ HTASK16 hParent; /* 22 Selector of TDB of parent */ WORD signal_flags; /* 24 Flags for signal handler */ FARPROC16 sighandler WINE_PACKED; /* 26 Signal handler */ FARPROC16 userhandler WINE_PACKED; /* 2a USER signal handler */ FARPROC16 discardhandler WINE_PACKED; /* 2e Handler for GlobalNotify() */ DWORD int0 WINE_PACKED; /* 32 int 0 (divide by 0) handler */ DWORD int2 WINE_PACKED; /* 36 int 2 (NMI) handler */ DWORD int4 WINE_PACKED; /* 3a int 4 (INTO) handler */ DWORD int6 WINE_PACKED; /* 3e int 6 (invalid opc) handler */ DWORD int7 WINE_PACKED; /* 42 int 7 (coprocessor) handler */ DWORD int3e WINE_PACKED; /* 46 int 3e (80x87 emu) handler */ DWORD int75 WINE_PACKED; /* 4a int 75 (80x87 error) handler */ DWORD compat_flags WINE_PACKED; /* 4e Compatibility flags */ BYTE unused4[2]; /* 52 */ struct _TEB *teb; /* 54 Pointer to thread database */ BYTE unused5[8]; /* 58 */ HANDLE16 hPDB; /* 60 Selector of PDB (i.e. PSP) */ SEGPTR dta WINE_PACKED; /* 62 Current DTA */ BYTE curdrive; /* 66 Current drive */ BYTE curdir[65]; /* 67 Current directory */ WORD nCmdShow; /* a8 cmdShow parameter to WinMain */ HTASK16 hYieldTo; /* aa Next task to schedule */ DWORD dlls_to_init; /* ac Ptr to DLLs to initialize */ HANDLE16 hCSAlias; /* b0 Code segment for this TDB */ THUNKS thunks WINE_PACKED; /* b2 Make proc instance thunks */ WORD more_thunks[6*4]; /* c2 Space for 6 more thunks */ BYTE module_name[8]; /* f2 Module name for task */ WORD magic; /* fa TDB signature */ HANDLE hEvent; /* fc scheduler event handle */ PDB16 pdb; /* 100 PDB for this task */ } TDB; #define TDB_MAGIC ('T' | ('D' << 8)) /* TDB flags */ #define TDBF_WINOLDAP 0x0001 #define TDBF_OS2APP 0x0008 #define TDBF_WIN32 0x0010 /* Windows 3.1 USER signals */ #define USIG16_TERMINATION 0x0020 #define USIG16_DLL_LOAD 0x0040 #define USIG16_DLL_UNLOAD 0x0080 #define USIG16_GPF 0x0666 /* THHOOK Kernel Data Structure */ typedef struct _THHOOK { HANDLE16 hGlobalHeap; /* 00 (handle BURGERMASTER) */ WORD pGlobalHeap; /* 02 (selector BURGERMASTER) */ HMODULE16 hExeHead; /* 04 hFirstModule */ HMODULE16 hExeSweep; /* 06 (unused) */ HANDLE16 TopPDB; /* 08 (handle of KERNEL PDB) */ HANDLE16 HeadPDB; /* 0A (first PDB in list) */ HANDLE16 TopSizePDB; /* 0C (unused) */ HTASK16 HeadTDB; /* 0E hFirstTask */ HTASK16 CurTDB; /* 10 hCurrentTask */ HTASK16 LoadTDB; /* 12 (unused) */ HTASK16 LockTDB; /* 14 hLockedTask */ } THHOOK; #include "poppack.h" extern THHOOK *pThhook; extern void (*TASK_AddTaskEntryBreakpoint)( HTASK16 hTask ); extern BOOL TASK_Create( struct _NE_MODULE *pModule, UINT16 cmdShow ); extern void TASK_KillTask( HTASK16 hTask ); extern HTASK16 TASK_GetNextTask( HTASK16 hTask ); extern void TASK_Reschedule(void); extern void TASK_CallToStart(void); extern void TASK_InstallTHHook( THHOOK *pNewThook ); extern void TASK_CallTaskSignalProc( UINT16 uCode, HANDLE16 hTaskOrModule ); extern HQUEUE16 WINAPI SetThreadQueue16( DWORD thread, HQUEUE16 hQueue ); extern HQUEUE16 WINAPI GetThreadQueue16( DWORD thread ); extern VOID WINAPI SetFastQueue16( DWORD thread, HANDLE hQueue ); extern HANDLE WINAPI GetFastQueue16( void ); #endif /* __WINE_TASK_H */