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RCF - Interprocess Communication for C++

, 25 Oct 2011
A server/client IPC framework, using the C++ preprocessor as an IDL compiler.
rcf-04.zip
RCF-0.4
demo
vs2003
RCF
Client
Server
doc
html
class_r_c_f_1_1_exception.png
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class_r_c_f_1_1_filter_factory.png
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class_r_c_f_1_1_i___session_manager.png
class_r_c_f_1_1_multicast_client_transport.png
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class_r_c_f_1_1_publishing_service.png
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class_r_c_f_1_1_filter_service.eps
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class_r_c_f_1_1_identity_filter.eps
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class_r_c_f_1_1_identity_filter_factory.eps
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class_r_c_f_1_1_i___service.eps
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class_r_c_f_1_1_i___session.tex
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class_r_c_f_1_1_i___session_manager.tex
class_r_c_f_1_1_multicast_client_transport.eps
class_r_c_f_1_1_multicast_client_transport.tex
class_r_c_f_1_1_object_factory_service.eps
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class_r_c_f_1_1_open_ssl_encryption_filter.eps
class_r_c_f_1_1_open_ssl_encryption_filter.tex
class_r_c_f_1_1_open_ssl_encryption_filter_factory.eps
class_r_c_f_1_1_open_ssl_encryption_filter_factory.tex
class_r_c_f_1_1_publishing_service.eps
class_r_c_f_1_1_publishing_service.tex
class_r_c_f_1_1_rcf_server.eps
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class_r_c_f_1_1_remote_exception.eps
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class_r_c_f_1_1_subscription_service.eps
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class_r_c_f_1_1_tcp_endpoint.eps
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class_r_c_f_1_1_udp_endpoint.eps
class_r_c_f_1_1_udp_endpoint.tex
class_r_c_f_1_1_zlib_stateful_compression_filter.tex
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class_r_c_f_1_1_zlib_stateful_compression_filter_factory.tex
class_r_c_f_1_1_zlib_stateless_compression_filter.tex
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class_r_c_f_1_1_zlib_stateless_compression_filter_factory.tex
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include
RCF
Marshal.inl
Protocol
RcfServer.inl
ServerStub.inl
test
util
Platform
Machine
SPARC
x86
OS
Unix
Windows
Threads
SF
src
RCF
Protocol
SF
test
borland
Jamfile
Jamrules
Jamfile
Jamrules
vs2003
RCF
RCF
RCFTest
client.pem
server.pem
rcf-09c.zip
RCF-0.9c
demo
vs2003
RCF
Client
Server
include
RCF
Marshal.inl
Protocol
RcfServer.inl
ServerStub.inl
test
util
Platform
Machine
SPARC
x86
OS
Unix
Windows
Threads
SF
src
RCF
Protocol
util
SF
test
bcc
Jamfile
Jamrules
data
caCertA.pem
caCertB.pem
certA.pem
certB.pem
ssCert1.pem
ssCert2.pem
Jamfile
Jamrules
vc6
Jamfile
Jamrules
//*****************************************************************************
// RCF - Remote Call Framework
// Copyright (c) 2005. All rights reserved.
// Developed by Jarl Lindrud.
// Contact: jlindrud@hotmail.com .
//*****************************************************************************

#ifndef INCLUDE_RCF_TCPASIOSERVERTRANSPORT_HPP
#define INCLUDE_RCF_TCPASIOSERVERTRANSPORT_HPP

#include <set>
#include <vector>

#include <boost/enable_shared_from_this.hpp>
#include <boost/shared_ptr.hpp>
#include <boost/weak_ptr.hpp>

#include <boost/asio.hpp>

#include <RCF/IpAddress.hpp>
#include <RCF/IpServerTransport.hpp>
#include <RCF/ServerTransport.hpp>
#include <RCF/Service.hpp>
#include <RCF/ThreadLibrary.hpp>

namespace RCF {

    namespace asio = boost::asio;

    class RcfServer;
    class TcpAsioSynchronizedSocket;

    typedef asio::io_service                    Demuxer;
    typedef boost::shared_ptr<Demuxer>          DemuxerPtr;
    typedef asio::ip::tcp::acceptor             SocketAcceptor;
    typedef boost::shared_ptr<SocketAcceptor>   SocketAcceptorPtr;
    typedef asio::deadline_timer                DeadlineTimer;
    typedef boost::shared_ptr<DeadlineTimer>    DeadlineTimerPtr;

    class TcpAsioServerTransport : 
        public I_ServerTransport, 
        public I_ServerTransportEx, 
        public I_IpServerTransport,
        public I_Service
    {
    public:

        TcpAsioServerTransport(int port);
        ServerTransportPtr clone();

    private:

        typedef boost::shared_ptr<I_Session> SessionPtr;
        typedef boost::weak_ptr<I_Session> SessionWeakPtr;
        typedef TcpAsioSynchronizedSocket SynchronizedSocket;
        typedef boost::shared_ptr<SynchronizedSocket> SynchronizedSocketPtr;
        
        class TcpAsioProactor;

        class SessionState : public boost::enable_shared_from_this<SessionState>, boost::noncopyable
        {
        public:
            
            SessionState(TcpAsioServerTransport &transport, DemuxerPtr demuxerPtr, ReadWriteMutexPtr readWriteMutexPtr);
            ~SessionState();

            void            setSessionPtr(SessionPtr sessionPtr) { mSessionPtr = sessionPtr; }
            SessionPtr      getSessionPtr() { return mSessionPtr; }

            void            close();
            void            invokeAsyncAccept();

        private:

            void            filteredRead(char *buffer, std::size_t bufferLen);
            void            filteredWrite(const char *buffer, std::size_t bufferLen);
            void            filteredReadWriteCompletion(const asio::error &error, size_t bytesTransferred);
            void            unfilteredReadWriteCompletion(std::size_t bytesTransferred, int error);
            void            setTransportFilters(const std::vector<FilterPtr> &filters);
            void            invokeAsyncRead();
            void            invokeAsyncWrite();
            void            onAccept(const asio::error& error);
            void            onReadWrite(const asio::error& error, size_t bytesTransferred);
            void            onReflectedReadWrite(const asio::error& error, size_t bytesTransferred);


            // TODO: too many friends
            friend class    TcpAsioServerTransport;
            friend class    TcpAsioProactor;
            
            enum State 
            {
                Ready,
                Accepting,
                ReadingDataCount,
                ReadingData,
                WritingData
            };

            State                               mState;
            std::vector<char>                   mReadBuffer;
            std::size_t                         mReadBufferRemaining;
            std::vector<char>                   mWriteBuffer;
            std::size_t                         mWriteBufferRemaining;
            //boost::weak_ptr<I_Session>          mSessionWeakPtr;
            boost::shared_ptr<I_Session>        mSessionPtr;
            std::vector<FilterPtr>              mTransportFilters;
            SynchronizedSocketPtr               mSynchronizedSocketPtr;
            SynchronizedSocketPtr               mReflectorSocketPtr;
            volatile bool                       mReflecting;
            IpAddress                           mIpAddress;
            TcpAsioServerTransport &            mTransport;
        };

        typedef boost::shared_ptr<SessionState> SessionStatePtr;
        typedef boost::weak_ptr<SessionState> SessionStateWeakPtr;

        class TcpAsioProactor : public I_Proactor
        {
        private:
            // TODO: too many frioends
            friend class SessionState;
            friend class TcpAsioServerTransport;

            TcpAsioProactor(TcpAsioServerTransport &tcpAsioServerTransport);

            void                        postRead();
            void                        postWrite();
            void                        postClose();
            std::vector<char> &         getWriteBuffer();
            std::size_t                 getWriteOffset();
            std::vector<char> &         getReadBuffer();
            std::size_t                 getReadOffset();
            I_ServerTransport &         getServerTransport();
            const I_RemoteAddress &     getRemoteAddress();
            void                        setTransportFilters(const std::vector<FilterPtr> &filters);
        
            SessionStateWeakPtr         mSessionStateWeakPtr;
            //SessionStatePtr             mSessionStatePtr;
            TcpAsioServerTransport &    mTcpAsioServerTransport;
        };

        typedef boost::shared_ptr<TcpAsioProactor> TcpAsioProactorPtr;

        SessionStatePtr createSessionState();
        
        // I_ServerTransportEx implementation
        ClientTransportAutoPtr          createClientTransport(const I_Endpoint &endpoint);
        boost::shared_ptr<I_Session>    createServerSession(ClientTransportAutoPtr clientTransportAutoPtr);
        ClientTransportAutoPtr          createClientTransport(boost::shared_ptr<I_Session> sessionPtr);
        bool                            reflect(boost::shared_ptr<I_Session> sessionPtr1, boost::shared_ptr<I_Session> sessionPtr2);
        bool                            isConnected(boost::shared_ptr<I_Session> sessionPtr);
        
        // I_Service implementation
        void                open();
        void                close();
        bool                cycle(int timeoutMs, const volatile bool &stopFlag);
        void                stop();
        void                stopCycle(const asio::error &error);
        void                onServiceAdded(RcfServer &server);
        void                onServiceRemoved(RcfServer &server);
        void                onServerOpen(RcfServer &server);
        void                onServerClose(RcfServer &server);
        void                onServerStart(RcfServer &server);
        void                onServerStop(RcfServer &server);
        void                setServer(RcfServer &server);

        RcfServer &         getServer();
        I_SessionManager &  getSessionManager();

    private:

        friend class        SessionState;

        DemuxerPtr          mDemuxerPtr;
        ReadWriteMutexPtr   mReadWriteMutexPtr;
        int                 mPort;
        SocketAcceptorPtr   mAcceptorPtr;
        DeadlineTimerPtr    mCycleTimerPtr;
        bool                mInterrupt;
        volatile bool       mStopFlag;
        RcfServer *         pServer;

        std::set<SessionStatePtr>   mSessionStates;

    };

} // namespace RCF

#endif // ! INCLUDE_RCF_TCPASIOSERVERTRANSPORT_HPP

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About the Author

Jarl Lindrud

Australia Australia
Software developer, ex-resident of Sweden and now living in Canberra, Australia, working on distributed C++ applications. Jarl enjoys programming, but prefers skiing and playing table tennis. He derives immense satisfaction from referring to himself in third person.

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