SoftwareTimerControlBlock.hpp

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#ifndef INCLUDE_DISTORTOS_INTERNAL_SCHEDULER_SOFTWARETIMERCONTROLBLOCK_HPP_
#define INCLUDE_DISTORTOS_INTERNAL_SCHEDULER_SOFTWARETIMERCONTROLBLOCK_HPP_

#include "distortos/internal/scheduler/SoftwareTimerListNode.hpp"

namespace distortos
{

class SoftwareTimer;

namespace internal
{

class SoftwareTimerSupervisor;

class SoftwareTimerControlBlock : public SoftwareTimerListNode
{
public:

    using FunctionRunner = void(SoftwareTimer&);

    constexpr SoftwareTimerControlBlock(FunctionRunner& functionRunner, SoftwareTimer& owner) :
            SoftwareTimerListNode{},
            period_{},
            functionRunner_{functionRunner},
            owner_{owner}
    {

    }

    ~SoftwareTimerControlBlock()
    {
        stop();
    }

    bool isRunning() const
    {
        asm("" ::: "memory");   // required for LTO
        return node.isLinked() != false || period_ != decltype(period_){};
    }

    void run(SoftwareTimerSupervisor& supervisor);

    void start(SoftwareTimerSupervisor& supervisor, TickClock::time_point timePoint, TickClock::duration period);

    void stop();

    SoftwareTimerControlBlock(const SoftwareTimerControlBlock&) = delete;
    SoftwareTimerControlBlock(SoftwareTimerControlBlock&&) = default;
    const SoftwareTimerControlBlock& operator=(const SoftwareTimerControlBlock&) = delete;
    SoftwareTimerControlBlock& operator=(SoftwareTimerControlBlock&&) = delete;

private:

    void startInternal(SoftwareTimerSupervisor& supervisor, TickClock::time_point timePoint);

    void stopInternal();

    TickClock::duration period_;

    FunctionRunner& functionRunner_;

    SoftwareTimer& owner_;
};

}   // namespace internal

}   // namespace distortos

#endif  // INCLUDE_DISTORTOS_INTERNAL_SCHEDULER_SOFTWARETIMERCONTROLBLOCK_HPP_