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https://github.com/GoldenCheetah/GoldenCheetah.git
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113 lines
3.6 KiB
C++
113 lines
3.6 KiB
C++
/*
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* Copyright (c) 2009 Steve Gribble (gribble [at] cs.washington.edu) and
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* Mark Liversedge (liversedge@gmail.com)
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc., 51
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* Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _GC_SimpleNetworkClient_h
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#define _GC_SimpleNetworkClient_h 1
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#include <QString>
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#include <QDebug>
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#include <QQueue>
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#include <QTcpSocket>
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#include <QThread>
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#include <QMutex>
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#include <QWaitCondition>
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#include "DeviceTypes.h"
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#include "DeviceConfiguration.h"
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#include "RealtimeController.h"
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#include "RealtimeData.h"
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// This class is used by SimpleNetworkController to actually
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// connect to the remote server, and do the reads/writes and
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// marshalling/unmarshalling of data over the network.
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// The class spawns a thread to do reads, and steals the
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// caller's thread to do writes.
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class SimpleNetworkClient : public QThread
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{
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public:
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QObject *parent;
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// hostname and port are the hostname/port of the server to which
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// this SimpleNetworkClient should connect.
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SimpleNetworkClient(QObject *parent, DeviceConfiguration *dc);
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~SimpleNetworkClient();
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// Forge the connection to the remote host, and start the
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// thread running. Returns false on failure (in which case
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// the thread will not be running).
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bool start();
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// If the TCP connection is open, closes it. If the thread
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// is running, terminates it and waits for it to exit.
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void closeAndExit();
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// When called, this method will fill in rtData with the latest
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// realtime data from the remote peer.
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//
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// Returns true on success, false if the remote peer has been
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// disconnected.
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bool getRealtimeData(RealtimeData &rtData);
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// When called, this method will push the realtime data in
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// rtData to the server.
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//
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// Returns true on success, false if the remote peer has been
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// disconnected.
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bool pushRealtimeData(RealtimeData &rtData);
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private:
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// When SimpleNetworkClient.start() is called, the new thread
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// will begin executing here.
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void run();
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// The thread uses this to pull from the network.
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bool read_next_line(QMutexLocker &locker,
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QTcpSocket &server,
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RealtimeData &read_into_me,
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char *next_line);
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// The thread uses this to push into the network.
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bool write_next_line(QMutexLocker &locker,
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QTcpSocket &server,
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RealtimeData record,
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char *buffer);
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// Hostname and port number we connect to.
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QString server_hostname;
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quint16 server_port;
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// For coordinating between GUI and the thread.
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QMutex client_lock;
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QWaitCondition client_cond;
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bool running; // controlled by child thread
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bool connected; // controlled by child thread
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bool kill_signal; // controlled by caller; child thread will signal
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// The latest data read from the network.
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RealtimeData read_data_cache;
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// A Queue of data to write to the network.
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QQueue<RealtimeData> write_queue;
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};
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#endif // _GC_SimpleNetworkClient_h
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