DSMServerApp.h

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// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 4; tab-width: 4; -*-
// vim: set shiftwidth=4 softtabstop=4 expandtab:
/*
 ********************************************************************
 ** NIDAS: NCAR In-situ Data Acquistion Software
 **
 ** 2009, Copyright University Corporation for Atmospheric Research
 **
 ** This program is free software; you can redistribute it and/or modify
 ** it under the terms of the GNU General Public License as published by
 ** the Free Software Foundation; either version 2 of the License, or
 ** (at your option) any later version.
 **
 ** 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 General Public License for more details.
 **
 ** The LICENSE.txt file accompanying this software contains
 ** a copy of the GNU General Public License. If it is not found,
 ** write to the Free Software Foundation, Inc.,
 ** 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 **
 ********************************************************************
*/
 
#ifndef NIDAS_CORE_DSMSERVERAPP_H
#define NIDAS_CORE_DSMSERVERAPP_H
 
#include "Datasets.h"
#include "XMLException.h"
#include "NidasApp.h"
#include <nidas/util/ThreadSupport.h>
#include <nidas/util/IOException.h>
#include <nidas/util/InvalidParameterException.h>
 
#include <signal.h>
 
namespace nidas { namespace core {
 
class Project;
class DSMServer;
class DSMServerIntf;
class DSMServerStat;
 
class DSMServerApp {
public:
 
    DSMServerApp();
 
    ~DSMServerApp();
 
    static int main(int argc, char** argv) throw();
 
    static DSMServerApp* getInstance() { return _instance; }
 
    void initLogger();
 
    int initProcess();
 
    int run() throw();
 
    int parseRunstring(int argc, char** argv);
 
    int usage();
 
    void parseXMLConfigFile(const std::string& xmlFileName, Project&);
 
    void startXmlRpcThread();
 
    void killXmlRpcThread();
 
    void startStatusThread(DSMServer* svr);
 
    void killStatusThread();
 
    const std::string& getXMLFileName() { return _xmlFileName; }
 
    Dataset getDataset();
 
private:
 
    void setupSignals();
 
    void waitForSignal(int timeoutSecs);
 
    static DSMServerApp* _instance;
 
    enum runState { RUN, QUIT, RESTART, ERROR };
 
    bool _debug;
 
    std::string _xmlFileName;
 
    std::string _configsXMLName;
 
    enum runState _runState;
 
    DSMServerIntf* _xmlrpcThread;
 
    DSMServerStat* _statusThread;
 
    bool _externalControl;
 
    bool _optionalProcessing;
 
    sigset_t _signalMask;
 
    pthread_t _myThreadId;
 
    std::string _datasetName;
 
    NidasApp _app;
 
    NidasAppArg ExternalControl;
    NidasAppArg OptionalProcessing;
 
    DSMServerApp(const DSMServerApp &);
 
    DSMServerApp& operator=(const DSMServerApp &);
};
 
}}  // namespace nidas namespace core
 
#endif