4 * Copyright 1995 Alexandre Julliard
7 #ifndef __WINE_CALLBACK_H
8 #define __WINE_CALLBACK_H
13 #include "wine/winuser16.h"
15 extern void SYSDEPS_SwitchToThreadStack( void (*func
)(void) ) WINE_NORETURN
;
17 typedef void (*RELAY
)();
18 extern FARPROC
THUNK_Alloc( FARPROC16 func
, RELAY relay
);
19 extern void THUNK_Free( FARPROC thunk
);
20 extern BOOL
THUNK_Init(void);
21 extern void THUNK_InitCallout(void);
26 WORD
WINAPI (*UserSignalProc
)( UINT
, DWORD
, DWORD
, HMODULE16
);
27 WORD
WINAPI (*DestroyIcon32
)( HGLOBAL16
, UINT16
);
30 extern CALLOUT_TABLE Callout
;
34 struct _DOSTASK
* WINAPI (*Current
)( void );
35 struct _DOSTASK
* WINAPI (*LoadDPMI
)( void );
36 void WINAPI (*LoadDosExe
)( LPCSTR filename
, HANDLE hFile
);
37 BOOL
WINAPI (*Exec
)( CONTEXT86
*context
, LPCSTR filename
, BYTE func
, LPVOID paramblk
);
38 void WINAPI (*Exit
)( CONTEXT86
*context
, BOOL cs_psp
, WORD retval
);
39 int WINAPI (*Enter
)( CONTEXT86
*context
);
40 void WINAPI (*Wait
)( int read_pipe
, HANDLE hObject
);
41 void WINAPI (*QueueEvent
)( int irq
, int priority
, void (*relay
)(CONTEXT86
*,void*), void *data
);
42 void WINAPI (*OutPIC
)( WORD port
, BYTE val
);
43 void WINAPI (*SetTimer
)( unsigned ticks
);
44 unsigned WINAPI (*GetTimer
)( void );
47 extern DOSVM_TABLE Dosvm
;
52 typedef struct tagTHUNK
54 BYTE popl_eax
; /* 0x58 popl %eax (return address)*/
55 BYTE pushl_func
; /* 0x68 pushl $proc */
56 FARPROC16 proc WINE_PACKED
;
57 BYTE pushl_eax
; /* 0x50 pushl %eax */
58 BYTE jmp
; /* 0xe9 jmp relay (relative jump)*/
59 RELAY relay WINE_PACKED
;
60 struct tagTHUNK
*next WINE_PACKED
;
66 #define CALLTO16_THUNK_MAGIC 0x54484e4b /* "THNK" */
68 #define DECL_THUNK(aname,aproc,arelay) \
70 aname.popl_eax = 0x58; \
71 aname.pushl_func = 0x68; \
72 aname.proc = (FARPROC16) (aproc); \
73 aname.pushl_eax = 0x50; \
75 aname.relay = (RELAY)((char *)(arelay) - (char *)(&(aname).next)); \
77 aname.magic = CALLTO16_THUNK_MAGIC;
79 #endif /* __WINE_CALLBACK_H */