1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
/*-------------------------------------------------------------------------
*
* exc.h--
* POSTGRES exception handling definitions.
*
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: exc.h,v 1.1.1.1 1996/07/09 06:22:01 scrappy Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef EXC_H
#define EXC_H
#include "c.h" /* for Exception, etc. */
#include <setjmp.h>
extern char *ExcFileName;
extern Index ExcLineNumber;
/*
* ExcMessage and Exception are now defined in c.h
*/
#if defined(PORTNAME_linux) \
|| defined(PORTNAME_hpux) \
|| defined(PORTNAME_next)\
|| defined(WIN32)
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 ExcPrint(Exception *excP, ExcDetail detail, ExcData data,
ExcMessage message);
extern ExcProc *ExcGetUnCaught();
extern ExcProc *ExcSetUnCaught(ExcProc *newP);
extern void ExcUnCaught(Exception *excP, ExcDetail detail, ExcData data,
ExcMessage message);
extern void ExcUnCaught(Exception *excP, ExcDetail detail, ExcData data,
ExcMessage message);
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 */
|
