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 void WINAPI (*LoadDosExe)( LPCSTR filename, HANDLE hFile );
37 void WINAPI (*CallRMInt)( CONTEXT86 *context );
38 void WINAPI (*CallRMProc)( CONTEXT86 *context, int iret );
39 void WINAPI (*AllocRMCB)( CONTEXT86 *context );
40 void WINAPI (*FreeRMCB)( CONTEXT86 *context );
43 void WINAPI (*SetTimer)( unsigned ticks );
44 unsigned WINAPI (*GetTimer)( void );
45 BOOL WINAPI (*inport)( int port, int size, DWORD *res );
46 BOOL WINAPI (*outport)( int port, int size, DWORD val );
47 void WINAPI (*ASPIHandler)( CONTEXT86 *context );
50 extern DOSVM_TABLE Dosvm;
55 typedef struct tagTHUNK
57 BYTE popl_eax; /* 0x58 popl %eax (return address)*/
58 BYTE pushl_func; /* 0x68 pushl $proc */
59 FARPROC16 proc WINE_PACKED;
60 BYTE pushl_eax; /* 0x50 pushl %eax */
61 BYTE jmp; /* 0xe9 jmp relay (relative jump)*/
62 RELAY relay WINE_PACKED;
63 struct tagTHUNK *next WINE_PACKED;
69 #define CALLTO16_THUNK_MAGIC 0x54484e4b /* "THNK" */
71 #define DECL_THUNK(aname,aproc,arelay) \
73 aname.popl_eax = 0x58; \
74 aname.pushl_func = 0x68; \
75 aname.proc = (FARPROC16) (aproc); \
76 aname.pushl_eax = 0x50; \
78 aname.relay = (RELAY)((char *)(arelay) - (char *)(&(aname).next)); \
80 aname.magic = CALLTO16_THUNK_MAGIC;
82 #endif /* __WINE_CALLBACK_H */