1// Copyright 2010 The Kyua Authors.
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28
29/// \file utils/signals/exceptions.hpp
30/// Exception types raised by the signals module.
31
32#if !defined(UTILS_SIGNALS_EXCEPTIONS_HPP)
33#define UTILS_SIGNALS_EXCEPTIONS_HPP
34
35#include <stdexcept>
36
37namespace utils {
38namespace signals {
39
40
41/// Base exceptions for signals errors.
42class error : public std::runtime_error {
43public:
44    explicit error(const std::string&);
45    ~error(void) throw();
46};
47
48
49/// Denotes the reception of a signal to controlledly terminate execution.
50class interrupted_error : public error {
51    /// Signal that caused the interrupt.
52    int _signo;
53
54public:
55    explicit interrupted_error(const int signo_);
56    ~interrupted_error(void) throw();
57
58    int signo(void) const;
59};
60
61
62/// Exceptions for errno-based errors.
63///
64/// TODO(jmmv): This code is duplicated in, at least, utils::fs.  Figure
65/// out a way to reuse this exception while maintaining the correct inheritance
66/// (i.e. be able to keep it as a child of signals::error).
67class system_error : public error {
68    /// Error number describing this libc error condition.
69    int _original_errno;
70
71public:
72    explicit system_error(const std::string&, const int);
73    ~system_error(void) throw();
74
75    int original_errno(void) const throw();
76};
77
78
79}  // namespace signals
80}  // namespace utils
81
82
83#endif  // !defined(UTILS_SIGNALS_EXCEPTIONS_HPP)
84