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209 lines
4.8 KiB
209 lines
4.8 KiB
/***
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*excpt.h - defines exception values, types and routines
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*
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* Copyright (c) 1990-1993, Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* This file contains the definitions and prototypes for the compiler-
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* dependent intrinsics, support functions and keywords which implement
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* the structured exception handling extensions.
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*
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*Revision History:
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* 11-01-91 GJF Module created. Basically a synthesis of except.h
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* and excpt.h and intended as a replacement for
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* both.
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* 12-13-91 GJF Fixed build for Win32.
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* 05-05-92 SRW C8 wants C6 style names for now.
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* 07-20-92 SRW Moved from winxcpt.h to excpt.h
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* 08-06-92 GJF Function calling type and variable type macros. Also
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* revised compiler/target processor macro usage.
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* 11-09-92 GJF Fixed preprocessing conditionals for MIPS. Also,
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* fixed some compiler warning (fix from/for RichardS).
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* 01-03-93 SRW Fold in ALPHA changes
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* 01-04-93 SRW Add leave keyword for x86
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* 01-09-93 SRW Remove usage of MIPS and ALPHA to conform to ANSI
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* Use _MIPS_ and _ALPHA_ instead.
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* 01-21-93 GJF Removed support for C6-386's _cdecl.
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* 02-18-93 GJF Changed _try to __try, etc.
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* 10-04-93 SRW Fix ifdefs for MIPS and ALPHA to only check for _M_?????? defines
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*
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****/
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#ifndef _INC_EXCPT
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef _INTERNAL_IFSTRIP_
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#include <cruntime.h>
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#endif /* _INTERNAL_IFSTRIP_ */
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/*
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* Conditional macro definition for function calling type and variable type
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* qualifiers.
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*/
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#if ( (_MSC_VER >= 800) && (_M_IX86 >= 300) )
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/*
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* Definitions for MS C8-32 (386/486) compiler
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*/
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#define _CRTAPI1 __cdecl
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#define _CRTAPI2 __cdecl
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#else
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/*
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* Other compilers (e.g., MIPS)
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*/
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#define _CRTAPI1
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#define _CRTAPI2
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#endif
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/*
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* Exception disposition return values.
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*/
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typedef enum _EXCEPTION_DISPOSITION {
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ExceptionContinueExecution,
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ExceptionContinueSearch,
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ExceptionNestedException,
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ExceptionCollidedUnwind
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} EXCEPTION_DISPOSITION;
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/*
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* Prototype for SEH support function.
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*/
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#ifdef _M_IX86
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/*
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* Declarations to keep MS C 8 (386/486) compiler happy
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*/
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struct _EXCEPTION_RECORD;
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struct _CONTEXT;
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EXCEPTION_DISPOSITION _CRTAPI2 _except_handler (
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struct _EXCEPTION_RECORD *ExceptionRecord,
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void * EstablisherFrame,
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struct _CONTEXT *ContextRecord,
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void * DispatcherContext
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);
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#elif defined(_M_MRX000) || defined(_M_ALPHA) || defined(_M_PPC)
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/*
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* Declarations to keep MIPS, ALPHA, and PPC compiler happy
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*/
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typedef struct _EXCEPTION_POINTERS *Exception_info_ptr;
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struct _EXCEPTION_RECORD;
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struct _CONTEXT;
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struct _DISPATCHER_CONTEXT;
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EXCEPTION_DISPOSITION __C_specific_handler (
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struct _EXCEPTION_RECORD *ExceptionRecord,
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void *EstablisherFrame,
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struct _CONTEXT *ContextRecord,
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struct _DISPATCHER_CONTEXT *DispatcherContext
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);
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#endif
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/*
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* Keywords and intrinsics for SEH
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*/
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#ifdef _MSC_VER
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#if !defined(__cplusplus)
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#define try __try
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#define except __except
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#define finally __finally
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#define leave __leave
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#endif
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#define GetExceptionCode() (_exception_code())
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#define exception_code() (_exception_code())
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#define GetExceptionInformation() ((struct _EXCEPTION_POINTERS *)_exception_info())
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#define exception_info() ((struct _EXCEPTION_POINTERS *)_exception_info())
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#define AbnormalTermination() (_abnormal_termination())
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#define abnormal_termination() (_abnormal_termination())
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unsigned long _CRTAPI1 _exception_code(void);
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void * _CRTAPI1 _exception_info(void);
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int _CRTAPI1 _abnormal_termination(void);
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#endif
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/*
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* Legal values for expression in except().
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*/
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#define EXCEPTION_EXECUTE_HANDLER 1
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#define EXCEPTION_CONTINUE_SEARCH 0
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#define EXCEPTION_CONTINUE_EXECUTION -1
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#ifndef _INTERNAL_IFSTRIP_
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/*
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* for convenience, define a type name for a pointer to signal-handler
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*/
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typedef void (_CRTAPI1 * _PHNDLR)(int);
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/*
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* Exception-action table used by the C runtime to identify and dispose of
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* exceptions corresponding to C runtime errors or C signals.
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*/
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struct _XCPT_ACTION {
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/*
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* exception code or number. defined by the host OS.
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*/
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unsigned long XcptNum;
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/*
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* signal code or number. defined by the C runtime.
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*/
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int SigNum;
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/*
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* exception action code. either a special code or the address of
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* a handler function. always determines how the exception filter
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* should dispose of the exception.
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*/
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_PHNDLR XcptAction;
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};
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extern struct _XCPT_ACTION _CRTVAR1 _XcptActTab[];
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/*
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* number of entries in the exception-action table
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*/
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extern int _CRTVAR1 _XcptActTabCount;
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/*
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* size of exception-action table (in bytes)
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*/
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extern int _CRTVAR1 _XcptActTabSize;
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/*
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* return values and prototype for the exception filter function used in the
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* C startup
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*/
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int _CRTAPI1 _XcptFilter(unsigned long, struct _EXCEPTION_POINTERS *);
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#endif /* _INTERNAL_IFSTRIP_ */
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#ifdef __cplusplus
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}
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#endif
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#define _INC_EXCPT
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#endif /* _INC_EXCPT */
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