SignalsReceiverControlBlock.hpp

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#ifndef INCLUDE_DISTORTOS_INTERNAL_SYNCHRONIZATION_SIGNALSRECEIVERCONTROLBLOCK_HPP_
#define INCLUDE_DISTORTOS_INTERNAL_SYNCHRONIZATION_SIGNALSRECEIVERCONTROLBLOCK_HPP_

#include "distortos/distortosConfiguration.h"

#if DISTORTOS_SIGNALS_ENABLE == 1

#include "distortos/SignalSet.hpp"

#include <cstdint>

union sigval;

namespace distortos
{

class SignalAction;
class SignalInformation;
class SignalInformationQueueWrapper;
class SignalsCatcher;

namespace internal
{

class SignalInformationQueue;
class SignalsCatcherControlBlock;
class ThreadControlBlock;

class SignalsReceiverControlBlock
{
public:

    explicit SignalsReceiverControlBlock(SignalInformationQueueWrapper* signalInformationQueueWrapper,
            SignalsCatcher* signalsCatcher);

    std::pair<int, SignalInformation> acceptPendingSignal(uint8_t signalNumber);

    int deliveryOfSignalsStartedHook() const;

    int generateSignal(uint8_t signalNumber, ThreadControlBlock& threadControlBlock);

    SignalSet getPendingSignalSet() const;

    std::pair<int, SignalAction> getSignalAction(uint8_t signalNumber) const;

    SignalSet getSignalMask() const;

    int queueSignal(uint8_t signalNumber, sigval value, ThreadControlBlock& threadControlBlock) const;

    std::pair<int, SignalAction> setSignalAction(uint8_t signalNumber, const SignalAction& signalAction);

    int setSignalMask(SignalSet signalMask, bool deliver);

    void setWaitingSignalSet(const SignalSet* const signalSet)
    {
        waitingSignalSet_ = signalSet;
    }

private:

    void afterGenerateQueueLocked(uint8_t signalNumber, ThreadControlBlock& threadControlBlock) const;

    void afterGenerateQueueUnlocked(uint8_t signalNumber, ThreadControlBlock& threadControlBlock) const;

    int beforeGenerateQueue(uint8_t signalNumber, ThreadControlBlock& threadControlBlock) const;

    std::pair<int, bool> isSignalIgnored(uint8_t signalNumber) const;

    SignalSet pendingSignalSet_;

    const SignalSet* waitingSignalSet_;

    SignalsCatcherControlBlock* signalsCatcherControlBlock_;

    SignalInformationQueue* signalInformationQueue_;
};

}   // namespace internal

}   // namespace distortos

#endif  // DISTORTOS_SIGNALS_ENABLE == 1

#endif  // INCLUDE_DISTORTOS_INTERNAL_SYNCHRONIZATION_SIGNALSRECEIVERCONTROLBLOCK_HPP_