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
|
/*
* Generic base exception hierarchy
*
* Copyright (C) 2003,2004,2005,2006 Enrico Zini <enrico@debian.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <wibble/exception.h>
#include <string.h> // strerror_r
#include <errno.h>
#include <cstdlib>
#include <typeinfo>
#include <sstream>
#include <iostream>
#include <execinfo.h>
using namespace std;
namespace wibble {
namespace exception {
std::vector< std::string > AddContext::s_context;
void DefaultUnexpected()
{
try {
const int trace_size = 50;
void *addrs[trace_size];
size_t size = backtrace (addrs, trace_size);
char **strings = backtrace_symbols (addrs, size);
cerr << "Caught unexpected exception, " << size << " stack frames unwound:" << endl;
for (size_t i = 0; i < size; i++)
cerr << " " << strings[i] << endl;
free (strings);
throw;
} catch (Generic& e) {
cerr << "Exception was: " << e.type() << ": " << e.fullInfo() << endl;
throw;
} catch (std::exception& e) {
cerr << "Exception was: " << typeid(e).name() << ": " << e.what() << endl;
throw;
} catch (...) {
cerr << "Exception was an unknown object" << endl;
throw;
}
}
InstallUnexpected::InstallUnexpected(void (*func)())
{
old = set_unexpected(func);
}
InstallUnexpected::~InstallUnexpected()
{
set_unexpected(old);
}
///// SystemException
System::System(const std::string& context) throw ()
: Generic(context), m_errno(errno) {}
System::System(int code, const std::string& context) throw ()
: Generic(context), m_errno(code) {}
string System::desc() const throw ()
{
const int buf_size = 500;
char buf[buf_size];
#if (_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && ! _GNU_SOURCE
if (strerror_r(m_errno, buf, buf_size))
{
buf[buf_size - 1] = 0;
return string(buf);
} else {
return "Unable to get a description for errno value";
}
#else
return string(strerror_r(m_errno, buf, buf_size));
#endif
}
}
}
// vim:set ts=4 sw=4:
|
