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/**
* \file
* \brief SignalAction class header
*
* \author Copyright (C) 2015 Kamil Szczygiel http://www.distortec.com http://www.freddiechopin.info
*
* \par License
* This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of the MPL was not
* distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#ifndef INCLUDE_DISTORTOS_SIGNALACTION_HPP_
#define INCLUDE_DISTORTOS_SIGNALACTION_HPP_
#include "distortos/SignalSet.hpp"
namespace distortos
{
class SignalInformation;
/**
* \brief SignalAction class contains information needed to handle signal that was caught
*
* Similar to \a sigaction - http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/signal.h.html
*
* \ingroup signals
*/
class SignalAction
{
public:
/// handler function
using Handler = void(const SignalInformation&);
/**
* \brief SignalAction's constructor which uses "default" signal handler.
*/
constexpr SignalAction() :
signalMask_{SignalSet::empty},
handler_{}
{
}
/**
* \brief SignalAction's constructor.
*
* \param [in] handler is a reference to handler function (similar to \a sa_sigaction member of \a sigaction)
* \param [in] signalMask is the additional set of signals to be masked during execution of signal-catching function
* (similar to \a sa_mask member of \a sigaction)
*/
constexpr SignalAction(Handler& handler, const SignalSet signalMask) :
signalMask_{signalMask},
handler_{&handler}
{
}
/**
* \return pointer to handler function (similar to \a sa_sigaction member of \a sigaction), nullptr if use of
* default handler was configured (similar to \a SIG_DFL)
*/
Handler* getHandler() const
{
return handler_;
}
/**
* \return additional set of signals to be masked during execution of signal-catching function (similar to
* \a sa_mask member of \a sigaction)
*/
SignalSet getSignalMask() const
{
return signalMask_;
}
private:
/// additional set of signals to be masked during execution of signal-catching function (similar to \a sa_mask
/// member of \a sigaction)
SignalSet signalMask_;
/// pointer to handler function (similar to \a sa_sigaction member of \a sigaction), nullptr to use default handler
/// (similar to \a SIG_DFL)
Handler* handler_;
};
} // namespace distortos
#endif // INCLUDE_DISTORTOS_SIGNALACTION_HPP_
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