ComPort485F.h

#ifndef DISABLE_COMPORT_485F
/*
 * 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 COMPORT_485F_H_
#define COMPORT_485F_H_
// --------------------------------------------------------------------------
#include <queue>
#include "ComPort.h"
#include "PassiveTimer.h"
// --------------------------------------------------------------------------
namespace uniset
{
    class ComPort485F:
        public ComPort
    {
        public:
 
            ComPort485F( const std::string& comDevice, char gpio_num, bool tmit_ctrl = false );
 
            virtual void sendByte( unsigned char x ) override;
            virtual void setTimeout( timeout_t timeout ) override;
            virtual ssize_t sendBlock( unsigned char* msg, size_t len ) override;
 
            virtual void cleanupChannel() override;
            virtual void reopen() override;
 
        protected:
 
            virtual unsigned char m_receiveByte( bool wait ) override;
            void save2queue( unsigned char* msg, size_t len, size_t bnum );
            bool remove_echo( unsigned char tb[], ssize_t len );
            void m_read( timeout_t tmsec );
 
            unsigned char tbuf[ComPort::BufSize];
 
            std::queue<unsigned char> wq; 
            std::queue<unsigned char> rq; 
            char gpio_num;
            bool tmit_ctrl_on;
            PassiveTimer ptRecv;
            timeout_t tout_msec = { 2000 };
    };
    // -------------------------------------------------------------------------
} // end of uniset namespace
// --------------------------------------------------------------------------
#endif // COMPORT_485F_H_
// --------------------------------------------------------------------------
#endif // #ifndef DISABLE_COMPORT_485F