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/*-------------------------------------------------------------------------
*
* exc.h--
* POSTGRES exception handling definitions.
*
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: exc.h,v 1.11 1998/01/24 22:50:41 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef EXC_H
#define EXC_H
#include <setjmp.h>
#include "config.h"
extern char *ExcFileName;
extern Index ExcLineNumber;
/*
* ExcMessage and Exception are now defined in c.h
*/
#if defined(JMP_BUF)
typedef jmp_buf ExcContext;
#else
typedef sigjmp_buf ExcContext;
#endif
typedef Exception *ExcId;
typedef long ExcDetail;
typedef char *ExcData;
typedef struct ExcFrame
{
struct ExcFrame *link;
ExcContext context;
ExcId id;
ExcDetail detail;
ExcData data;
ExcMessage message;
} ExcFrame;
extern ExcFrame *ExcCurFrameP;
#define ExcBegin() \
{ \
ExcFrame exception; \
\
exception.link = ExcCurFrameP; \
if (sigsetjmp(exception.context, 1) == 0) { \
ExcCurFrameP = &exception; \
{
#define ExcExcept() \
} \
ExcCurFrameP = exception.link; \
} else { \
{
#define ExcEnd() \
} \
} \
}
#define raise4(x, t, d, message) \
ExcRaise(&(x), (ExcDetail)(t), (ExcData)(d), (ExcMessage)(message))
#define reraise() \
raise4(*exception.id,exception.detail,exception.data,exception.message)
typedef void ExcProc (Exception *, ExcDetail, ExcData, ExcMessage);
/*
* prototypes for functions in exc.c
*/
extern void EnableExceptionHandling(bool on);
extern void ExcRaise(Exception *excP,
ExcDetail detail,
ExcData data,
ExcMessage message);
/*
* prototypes for functions in excabort.c
*/
extern void ExcAbort(const Exception *excP, ExcDetail detail, ExcData data,
ExcMessage message);
#endif /* EXC_H */
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