4 * Copyright 1995 Alexandre Julliard
14 /* Process database (i.e. a normal DOS PSP) */
18 WORD int20
; /* 00 int 20h instruction */
19 WORD nextParagraph
; /* 02 Segment of next paragraph */
21 BYTE dispatcher
[5]; /* 05 Long call to DOS */
22 FARPROC16 savedint22 WINE_PACKED
; /* 0a Saved int 22h handler */
23 FARPROC16 savedint23 WINE_PACKED
; /* 0e Saved int 23h handler */
24 FARPROC16 savedint24 WINE_PACKED
; /* 12 Saved int 24h handler */
25 WORD parentPSP
; /* 16 Selector of parent PSP */
26 BYTE fileHandles
[20]; /* 18 Open file handles */
27 HANDLE16 environment
; /* 2c Selector of environment */
29 WORD nbFiles
; /* 32 Number of file handles */
30 SEGPTR fileHandlesPtr
; /* 34 Pointer to file handle table */
31 HANDLE16 hFileHandles
; /* 38 Handle to fileHandlesPtr */
33 BYTE fcb1
[16]; /* 5c First FCB */
34 BYTE fcb2
[20]; /* 6c Second FCB */
35 BYTE cmdLine
[128]; /* 80 Command-line (first byte is len)*/
39 /* Segment containing MakeProcInstance() thunks */
42 WORD next
; /* Selector of next segment */
43 WORD magic
; /* Thunks signature */
45 WORD free
; /* Head of the free list */
46 WORD thunks
[4]; /* Each thunk is 4 words long */
49 #define THUNK_MAGIC ('P' | ('T' << 8))
54 /* signal proc typedef */
55 typedef void (CALLBACK
*USERSIGNALPROC
)(HANDLE16
, UINT16
, UINT16
,
56 HINSTANCE16
, HQUEUE16
);
58 /* Task database. See 'Windows Internals' p. 226.
59 * Note that 16-bit OLE 2 libs like to read it directly
60 * so we have to keep entry offsets as they are.
64 HTASK16 hNext
; /* 00 Selector of next TDB */
65 DWORD ss_sp WINE_PACKED
; /* 02 Stack pointer of task */
66 WORD nEvents
; /* 06 Events for this task */
67 INT16 priority
; /* 08 Task priority, -32..15 */
68 WORD unused1
; /* 0a */
69 HTASK16 hSelf
; /* 0c Selector of this TDB */
70 HANDLE16 hPrevInstance
; /* 0e Previous instance of module */
71 DWORD unused2
; /* 10 */
72 WORD ctrlword8087
; /* 14 80x87 control word */
73 WORD flags
; /* 16 Task flags */
74 UINT16 error_mode
; /* 18 Error mode (see SetErrorMode)*/
75 WORD version
; /* 1a Expected Windows version */
76 HANDLE16 hInstance
; /* 1c Instance handle for task */
77 HMODULE16 hModule
; /* 1e Module handle */
78 HQUEUE16 hQueue
; /* 20 Selector of task queue */
79 HTASK16 hParent
; /* 22 Selector of TDB of parent */
80 WORD signal_flags
; /* 24 Flags for signal handler */
81 FARPROC16 sighandler WINE_PACKED
; /* 26 Signal handler */
82 USERSIGNALPROC userhandler WINE_PACKED
; /* 2a USER signal handler */
83 FARPROC16 discardhandler WINE_PACKED
; /* 2e Handler for GlobalNotify() */
84 DWORD int0 WINE_PACKED
; /* 32 int 0 (divide by 0) handler */
85 DWORD int2 WINE_PACKED
; /* 36 int 2 (NMI) handler */
86 DWORD int4 WINE_PACKED
; /* 3a int 4 (INTO) handler */
87 DWORD int6 WINE_PACKED
; /* 3e int 6 (invalid opc) handler */
88 DWORD int7 WINE_PACKED
; /* 42 int 7 (coprocessor) handler */
89 DWORD int3e WINE_PACKED
; /* 46 int 3e (80x87 emu) handler */
90 DWORD int75 WINE_PACKED
; /* 4a int 75 (80x87 error) handler */
91 DWORD compat_flags WINE_PACKED
; /* 4e Compatibility flags */
92 BYTE unused4
[2]; /* 52 */
93 struct _THDB
*thdb
; /* 54 Pointer to thread database */
94 struct _WSINFO
*pwsi
; /* 58 Socket control struct */
95 BYTE unused5
[4]; /* 5B */
96 HANDLE16 hPDB
; /* 60 Selector of PDB (i.e. PSP) */
97 SEGPTR dta WINE_PACKED
; /* 62 Current DTA */
98 BYTE curdrive
; /* 66 Current drive */
99 BYTE curdir
[65]; /* 67 Current directory */
100 WORD nCmdShow
; /* a8 cmdShow parameter to WinMain */
101 HTASK16 hYieldTo
; /* aa Next task to schedule */
102 DWORD dlls_to_init
; /* ac Ptr to DLLs to initialize */
103 HANDLE16 hCSAlias
; /* b0 Code segment for this TDB */
104 THUNKS thunks WINE_PACKED
; /* b2 Make proc instance thunks */
105 WORD more_thunks
[6*4]; /* c2 Space for 6 more thunks */
106 BYTE module_name
[8]; /* f2 Module name for task */
107 WORD magic
; /* fa TDB signature */
108 DWORD unused7
; /* fc */
109 PDB pdb
; /* 100 PDB for this task */
112 #define TDB_MAGIC ('T' | ('D' << 8))
115 #define TDBF_WINOLDAP 0x0001
116 #define TDBF_OS2APP 0x0008
117 #define TDBF_WIN32 0x0010
120 #define USIG_TERMINATION 0x0020
121 #define USIG_DLL_LOAD 0x0040
122 #define USIG_DLL_UNLOAD 0x0080
123 #define USIG_GPF 0x0666
127 extern BOOL32
TASK_Init(void);
128 extern HTASK16
TASK_CreateTask( HMODULE16 hModule
, HINSTANCE16 hInstance
,
129 HINSTANCE16 hPrevInstance
,
130 HANDLE16 hEnvironment
, LPCSTR cmdLine
,
132 extern void TASK_KillCurrentTask( INT16 exitCode
);
133 extern HTASK16
TASK_GetNextTask( HTASK16 hTask
);
135 #endif /* __WINE_TASK_H */