include/except.h

   1 /*
   2  * except.h
   3  * Copyright (c) 1996 Onno Hovers (onno@stack.urc.tue.nl)
   4  * Copyright (c) 1999 Alexandre Julliard
   5  */
   6
   7 #ifndef __WINE_EXCEPT_H
   8 #define __WINE_EXCEPT_H
   9
  10 #include <setjmp.h>
  11 #include "winnt.h"
  12 #include "thread.h"
  13
  14 /*
  15  * the function pointer to a exception handler
  16  */
  17
  18 /* forward definition */
  19 struct __EXCEPTION_FRAME;
  20
  21 typedef DWORD (CALLBACK *PEXCEPTION_HANDLER)( PEXCEPTION_RECORD pexcrec,
  22                                       struct __EXCEPTION_FRAME  *pestframe,
  23                                       PCONTEXT                   pcontext,
  24                                       struct __EXCEPTION_FRAME **pdispatcher);
  25
  26 /*
  27  * The exception frame, used for registering exception handlers
  28  * Win32 cares only about this, but compilers generally emit
  29  * larger exception frames for their own use.
  30  */
  31
  32 typedef struct __EXCEPTION_FRAME
  33 {
  34   struct __EXCEPTION_FRAME *Prev;
  35   PEXCEPTION_HANDLER       Handler;
  36 } EXCEPTION_FRAME, *PEXCEPTION_FRAME;
  37
  38
  39 void WINAPI RtlUnwind(PEXCEPTION_FRAME,LPVOID,PEXCEPTION_RECORD,DWORD);
  40
  41 static inline EXCEPTION_FRAME *EXC_push_frame( EXCEPTION_FRAME *frame )
  42 {
  43     TEB * teb = NtCurrentTeb();
  44     frame->Prev = teb->except;
  45     teb->except = frame;
  46     return frame;
  47 }
  48
  49 static inline EXCEPTION_FRAME *EXC_pop_frame( EXCEPTION_FRAME *frame )
  50 {
  51     NtCurrentTeb()->except = frame->Prev;
  52     return frame->Prev;
  53 }
  54
  55 #endif  /* __WINE_EXCEPT_H */