xref: /minix3/external/bsd/kyua-cli/dist/utils/signals/exceptions.hpp (revision 11be35a165022172ed3cea20f2b5df0307540b0e)
1*11be35a1SLionel Sambuc // Copyright 2010 Google Inc.
2*11be35a1SLionel Sambuc // All rights reserved.
3*11be35a1SLionel Sambuc //
4*11be35a1SLionel Sambuc // Redistribution and use in source and binary forms, with or without
5*11be35a1SLionel Sambuc // modification, are permitted provided that the following conditions are
6*11be35a1SLionel Sambuc // met:
7*11be35a1SLionel Sambuc //
8*11be35a1SLionel Sambuc // * Redistributions of source code must retain the above copyright
9*11be35a1SLionel Sambuc //   notice, this list of conditions and the following disclaimer.
10*11be35a1SLionel Sambuc // * Redistributions in binary form must reproduce the above copyright
11*11be35a1SLionel Sambuc //   notice, this list of conditions and the following disclaimer in the
12*11be35a1SLionel Sambuc //   documentation and/or other materials provided with the distribution.
13*11be35a1SLionel Sambuc // * Neither the name of Google Inc. nor the names of its contributors
14*11be35a1SLionel Sambuc //   may be used to endorse or promote products derived from this software
15*11be35a1SLionel Sambuc //   without specific prior written permission.
16*11be35a1SLionel Sambuc //
17*11be35a1SLionel Sambuc // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18*11be35a1SLionel Sambuc // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19*11be35a1SLionel Sambuc // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20*11be35a1SLionel Sambuc // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21*11be35a1SLionel Sambuc // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22*11be35a1SLionel Sambuc // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23*11be35a1SLionel Sambuc // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24*11be35a1SLionel Sambuc // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25*11be35a1SLionel Sambuc // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26*11be35a1SLionel Sambuc // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27*11be35a1SLionel Sambuc // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28*11be35a1SLionel Sambuc 
29*11be35a1SLionel Sambuc /// \file utils/signals/exceptions.hpp
30*11be35a1SLionel Sambuc /// Exception types raised by the signals module.
31*11be35a1SLionel Sambuc 
32*11be35a1SLionel Sambuc #if !defined(UTILS_SIGNALS_EXCEPTIONS_HPP)
33*11be35a1SLionel Sambuc #define UTILS_SIGNALS_EXCEPTIONS_HPP
34*11be35a1SLionel Sambuc 
35*11be35a1SLionel Sambuc #include <stdexcept>
36*11be35a1SLionel Sambuc 
37*11be35a1SLionel Sambuc namespace utils {
38*11be35a1SLionel Sambuc namespace signals {
39*11be35a1SLionel Sambuc 
40*11be35a1SLionel Sambuc 
41*11be35a1SLionel Sambuc /// Base exceptions for signals errors.
42*11be35a1SLionel Sambuc class error : public std::runtime_error {
43*11be35a1SLionel Sambuc public:
44*11be35a1SLionel Sambuc     explicit error(const std::string&);
45*11be35a1SLionel Sambuc     ~error(void) throw();
46*11be35a1SLionel Sambuc };
47*11be35a1SLionel Sambuc 
48*11be35a1SLionel Sambuc 
49*11be35a1SLionel Sambuc /// Denotes the reception of a signal to controlledly terminate execution.
50*11be35a1SLionel Sambuc class interrupted_error : public error {
51*11be35a1SLionel Sambuc     /// Signal that caused the interrupt.
52*11be35a1SLionel Sambuc     int _signo;
53*11be35a1SLionel Sambuc 
54*11be35a1SLionel Sambuc public:
55*11be35a1SLionel Sambuc     explicit interrupted_error(const int signo_);
56*11be35a1SLionel Sambuc     ~interrupted_error(void) throw();
57*11be35a1SLionel Sambuc 
58*11be35a1SLionel Sambuc     int signo(void) const;
59*11be35a1SLionel Sambuc };
60*11be35a1SLionel Sambuc 
61*11be35a1SLionel Sambuc 
62*11be35a1SLionel Sambuc /// Exceptions for errno-based errors.
63*11be35a1SLionel Sambuc ///
64*11be35a1SLionel Sambuc /// TODO(jmmv): This code is duplicated in, at least, utils::fs.  Figure
65*11be35a1SLionel Sambuc /// out a way to reuse this exception while maintaining the correct inheritance
66*11be35a1SLionel Sambuc /// (i.e. be able to keep it as a child of signals::error).
67*11be35a1SLionel Sambuc class system_error : public error {
68*11be35a1SLionel Sambuc     /// Error number describing this libc error condition.
69*11be35a1SLionel Sambuc     int _original_errno;
70*11be35a1SLionel Sambuc 
71*11be35a1SLionel Sambuc public:
72*11be35a1SLionel Sambuc     explicit system_error(const std::string&, const int);
73*11be35a1SLionel Sambuc     ~system_error(void) throw();
74*11be35a1SLionel Sambuc 
75*11be35a1SLionel Sambuc     int original_errno(void) const throw();
76*11be35a1SLionel Sambuc };
77*11be35a1SLionel Sambuc 
78*11be35a1SLionel Sambuc 
79*11be35a1SLionel Sambuc }  // namespace signals
80*11be35a1SLionel Sambuc }  // namespace utils
81*11be35a1SLionel Sambuc 
82*11be35a1SLionel Sambuc 
83*11be35a1SLionel Sambuc #endif  // !defined(UTILS_SIGNALS_EXCEPTIONS_HPP)
84