Pulse.h

/*
 * Copyright (c) 2015 Pavel Vainerman.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, version 2.1.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Lesser Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
// --------------------------------------------------------------------------
#ifndef Pulse_H_
#define Pulse_H_
// --------------------------------------------------------------------------
#include <iostream>
#include <algorithm>
#include "PassiveTimer.h"
// --------------------------------------------------------------------------
namespace uniset
{
    // header only
 
    class Pulse
    {
        public:
 
            // t1_msec - интервал "вкл"
            // t0_msec - интервал "откл"
            inline void run( timeout_t _t1_msec, timeout_t _t0_msec ) noexcept
            {
                setTiming(_t1_msec, _t0_msec, true);
            }
 
            inline void setTiming( timeout_t _t1_msec, timeout_t _t0_msec, bool run = false ) noexcept
            {
                t1_msec = _t1_msec;
                t0_msec = _t0_msec;
                t1.setTiming(t1_msec);
                t0.setTiming(t0_msec);
                set(run);
            }
 
            inline void reset() noexcept
            {
                set(true);
            }
 
            inline bool step() noexcept
            {
                if( !enabled )
                {
                    ostate = false;
                    return false;
                }
 
                if( ostate && t1.checkTime() )
                {
                    ostate = false;
                    t0.setTiming(t0_msec);
                }
 
                if( !ostate && t0.checkTime() )
                {
                    ostate = true;
                    t1.setTiming(t1_msec);
                }
 
                return ostate;
            }
 
            inline bool out() noexcept
            {
                return step(); // ostate;
            }
 
            inline bool out() const noexcept
            {
                return ostate;
            }
 
            inline void set( bool state ) noexcept
            {
                enabled = state;
 
                if( !enabled )
                    ostate = false;
                else
                {
                    t1.reset();
                    t0.reset();
                    ostate     = true;
                }
            }
 
            friend std::ostream& operator<<(std::ostream& os, Pulse& p )
            {
                return os << " idOn=" << p.enabled
                       << " t1=" << p.t1.getInterval()
                       << " t0=" << p.t0.getInterval()
                       << " out=" << p.out();
            }
 
            friend std::ostream& operator<<(std::ostream& os, Pulse* p )
            {
                return os << (*p);
            }
 
            inline timeout_t getT1() const noexcept
            {
                return t1_msec;
            }
            inline timeout_t getT0() const noexcept
            {
                return t0_msec;
            }
 
            bool isOn() const noexcept
            {
                return enabled;
            }
 
        protected:
            PassiveTimer t1;    // таймер "1"
            PassiveTimer t0;    // таймер "0"
            bool ostate = { false };
            bool enabled = { false };
            timeout_t t1_msec = { 0 };
            timeout_t t0_msec = { 0 };
 
    };
    // -------------------------------------------------------------------------
} // end of uniset namespace
// --------------------------------------------------------------------------
#endif
// --------------------------------------------------------------------------