mirror of
https://github.com/FairRootGroup/FairMQ.git
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- FairMQ: add possibility to poll on multiple channels. - FairMQ: include command channel when polling on blocking calls (for unblocking without termination). - FairMQ: move signal handler inside of FairMQDevice class (call FairMQDevice::CatchSignals() in the main function). - FairMQ: add 'bool CheckCurrentState(statename)' (instead of 'GetCurrentState() == statename' that cannot be thread safe). - FairMQDevice: add 'InteractiveStateLoop()' method that can be used to change states from the command line. - FairMQDevice: add automatic transition to IDLE state if Run() exits without an external event. - FairMQDevice: implement device reset. - FairMQDevice: use unordered_map for device channels. - FairMQChannel: improve address validation for channels. - FairMQChannel: add ExpectsAnotherPart() method to check if another msg part is expected (old approach still works). - FairMQ: remove invalid transition from the run files. - FairMQFileSink: disable ROOT termination signal handler. - Tutorial3: spawn xterm windows from start scripts without overlapping for better visibility. - FairMQ Examples: update protobuf test and move its files to a common directory. - FairMQStateMachine: improve feedback on invalid transitions (more readable).
97 lines
3.0 KiB
C++
97 lines
3.0 KiB
C++
/********************************************************************************
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* Copyright (C) 2014 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH *
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* *
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* This software is distributed under the terms of the *
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* GNU Lesser General Public Licence version 3 (LGPL) version 3, *
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* copied verbatim in the file "LICENSE" *
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********************************************************************************/
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/**
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* FairMQChannel.h
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*
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* @since 2015-06-02
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* @author A. Rybalchenko
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*/
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#ifndef FAIRMQCHANNEL_H_
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#define FAIRMQCHANNEL_H_
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#include <string>
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#include <boost/thread/mutex.hpp>
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#include "FairMQTransportFactory.h"
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#include "FairMQSocket.h"
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#include "FairMQPoller.h"
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class FairMQPoller;
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class FairMQTransportFactory;
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class FairMQChannel
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{
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friend class FairMQDevice;
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public:
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FairMQChannel();
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FairMQChannel(const std::string& type, const std::string& method, const std::string& address);
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virtual ~FairMQChannel();
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std::string GetType() const;
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std::string GetMethod() const;
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std::string GetAddress() const;
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int GetSndBufSize() const;
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int GetRcvBufSize() const;
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int GetRateLogging() const;
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void UpdateType(const std::string& type);
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void UpdateMethod(const std::string& method);
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void UpdateAddress(const std::string& address);
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void UpdateSndBufSize(const int sndBufSize);
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void UpdateRcvBufSize(const int rcvBufSize);
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void UpdateRateLogging(const int rateLogging);
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bool IsValid() const;
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bool ValidateChannel();
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bool InitCommandInterface(FairMQTransportFactory* factory);
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void ResetChannel();
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FairMQSocket* fSocket;
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// Wrappers for the socket methods to simplify the usage of channels
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int Send(FairMQMessage* msg, const std::string& flag = "") const;
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int Send(FairMQMessage* msg, const int flags) const;
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int Receive(FairMQMessage* msg, const std::string& flag = "") const;
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int Receive(FairMQMessage* msg, const int flags) const;
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/// Checks if the socket is expecting to receive another part of a multipart message.
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/// \return Return true if the socket expects another part of a multipart message and false otherwise.
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bool ExpectsAnotherPart() const;
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private:
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std::string fType;
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std::string fMethod;
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std::string fAddress;
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int fSndBufSize;
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int fRcvBufSize;
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int fRateLogging;
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std::string fChannelName;
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bool fIsValid;
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FairMQPoller* fPoller;
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FairMQSocket* fCmdSocket;
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FairMQTransportFactory* fTransportFactory;
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bool HandleCommand() const;
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// use static mutex to make the class easily copyable
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// implication: same mutex is used for all instances of the class
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// this does not hurt much, because mutex is used only during initialization with very low contention
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// possible TODO: improve this
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static boost::mutex channelMutex;
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};
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#endif /* FAIRMQCHANNEL_H_ */
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