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
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
/*
* Copyright (C) 2000-2002 The Exult Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef EXCEPTIONS_H
#define EXCEPTIONS_H
#ifndef ALPHA_LINUX_CXX
# include <cerrno>
#endif
#include <stdexcept>
#include <string>
/*
* Base class of all our exceptions, providing a storage for the error message
*/
class exult_exception : public std::exception {
std::string what_;
int errno_;
public:
exult_exception (const char *what_arg): what_ (what_arg), errno_(errno) { }
exult_exception (const std::string& what_arg): what_ (what_arg), errno_(errno) { }
const char *what() const throw () { return what_.c_str(); }
int get_errno(void) const { return errno_; }
virtual ~exult_exception () throw() {}
};
/*
* A quit exception can be thrown to quit the program
*/
class quit_exception : public exult_exception
{
int result_;
public:
quit_exception (int result = 0): exult_exception ("Quit"), result_(result) { }
int get_result(void) const { return result_; }
};
/*
* Classes which should not be replicatable throw an replication_exception
*/
class replication_exception : public exult_exception
{
public:
replication_exception (const char *what_arg): exult_exception (what_arg) { }
replication_exception (const std::string& what_arg): exult_exception (what_arg) { }
};
// Some handy macros which you can use to make a class non-replicable
#define UNREPLICATABLE_CLASS(NAME) NAME(const NAME &) { throw replication_exception( #NAME " cannot be replicated"); }; \
NAME &operator=(const NAME &) { throw replication_exception( #NAME " cannot be replicated"); return *this; }
#define UNREPLICATABLE_CLASS_I(NAME,INIT) NAME(const NAME &) : INIT { throw replication_exception( #NAME " cannot be replicated"); }; \
NAME &operator=(const NAME &) { throw replication_exception( #NAME " cannot be replicated"); return *this; }
/*
* File errors
*/
class file_exception : public exult_exception
{
public:
file_exception (const char *what_arg): exult_exception (what_arg) { }
file_exception (const std::string& what_arg): exult_exception (what_arg) { }
};
class file_open_exception : public file_exception {
static const std::string prefix_;
public:
file_open_exception (const std::string& file): file_exception("Error opening file "+file) { }
};
class file_write_exception : public file_exception {
static const std::string prefix_;
public:
file_write_exception(const std::string& file): file_exception("Error writing to file "+file) { }
};
class file_read_exception : public file_exception {
static const std::string prefix_;
public:
file_read_exception(const std::string& file): file_exception("Error reading from file "+file) { }
};
class wrong_file_type_exception : public file_exception {
public:
wrong_file_type_exception (const std::string& file, const std::string& type): file_exception("File "+file+" is not of type "+type) { }
};
/*
* Exception that gets fired when the user aborts something
*/
class UserBreakException
{
};
#endif
|
