tool/DataTypeHandler.h
author Knud Baastrup <kba@deif.com>
Tue, 14 Apr 2015 13:12:24 -0400
changeset 2629 a2701af27fde
parent 1868 489ea0becd74
permissions -rw-r--r--
Internal SDO requests now synchronized with external requests.
Internal SDO requests are managed by master FSM and can conflict with
external requests managed by slave FSM. The internal SDO requests
includes SDO requests created by an application and external request are
typical created by EtherCAT Tool for SDO upload/download or a directory
fetch initiated with ethercat sdos command. The conflict will cause a
FPWR from an external request to be overwritten by a FPWR from an
internal SDO request (or oppersite) in the same "train" of datagrams.
/*****************************************************************************
 *
 *  $Id$
 *
 *  Copyright (C) 2006-2009  Florian Pose, Ingenieurgemeinschaft IgH
 *
 *  This file is part of the IgH EtherCAT Master.
 *
 *  The IgH EtherCAT Master is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License version 2, as
 *  published by the Free Software Foundation.
 *
 *  The IgH EtherCAT Master 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 General
 *  Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with the IgH EtherCAT Master; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 *  ---
 *
 *  The license mentioned above concerns the source code only. Using the
 *  EtherCAT technology and brand is only permitted in compliance with the
 *  industrial property and similar rights of Beckhoff Automation GmbH.
 *
 ****************************************************************************/

#ifndef __DATATYPEHANDLER_H__
#define __DATATYPEHANDLER_H__

/****************************************************************************/

#include <stdint.h>
#include <string>
#include <stdexcept>
#include <ostream>

/****************************************************************************/

class DataTypeHandler
{
    public:
        DataTypeHandler();

    protected:
        struct DataType {
            const char *name;
            uint16_t code;
            size_t byteSize;
        };

		static std::string typeInfo();

        static const DataType *findDataType(const std::string &);
        static const DataType *findDataType(uint16_t);
        static size_t interpretAsType(const DataType *, const std::string &,
                void *, size_t);

        class SizeException:
            public std::runtime_error
        {
            public:
                SizeException(const std::string &msg):
                    runtime_error(msg) {}
        };

        static void outputData(std::ostream &, const DataType *,
                void *, size_t);
        static void printRawData(ostream &, const uint8_t *, size_t);

    private:
        static const DataType dataTypes[];
};

/****************************************************************************/

#endif