// Copyright 2010 The Kyua Authors.
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#include "utils/signals/exceptions.hpp"

#include <cstring>

#include "utils/format/macros.hpp"

namespace signals = utils::signals;


/// Constructs a new error with a plain-text message.
///
/// \param message The plain-text error message.
signals::error::error(const std::string& message) :
    std::runtime_error(message)
{
}


/// Destructor for the error.
signals::error::~error(void) throw()
{
}


/// Constructs a new interrupted error.
///
/// \param signo_ The signal that caused the interrupt.
signals::interrupted_error::interrupted_error(const int signo_) :
    error(F("Interrupted by signal %s") % signo_),
    _signo(signo_)
{
}


/// Destructor for the error.
signals::interrupted_error::~interrupted_error(void) throw()
{
}


/// Queries the signal number of the interruption.
///
/// \return A signal number.
int
signals::interrupted_error::signo(void) const
{
    return _signo;
}


/// Constructs a new error based on an errno code.
///
/// \param message_ The message describing what caused the error.
/// \param errno_ The error code.
signals::system_error::system_error(const std::string& message_,
                                    const int errno_) :
    error(F("%s: %s") % message_ % strerror(errno_)),
    _original_errno(errno_)
{
}


/// Destructor for the error.
signals::system_error::~system_error(void) throw()
{
}


/// \return The original errno value.
int
signals::system_error::original_errno(void) const throw()
{
    return _original_errno;
}