ReadWritePolicy.hh

Go to the documentation of this file.

//
// Copyright (c) 2020 Fraunhofer Institute for Applied Information Technology (FIT)
//                    Network Research Group (NET)
//                    Schloss Birlinghoven, 53754 Sankt Augustin, GERMANY
//                    Contact: support@wiback.org
//
// This file is part of the SENF code tree.
// It is licensed under the 3-clause BSD License (aka New BSD License).
// See LICENSE.txt in the top level directory for details or visit
// https://opensource.org/licenses/BSD-3-Clause
//


#ifndef HH_SENF_Socket_ReadWritePolicy_
#define HH_SENF_Socket_ReadWritePolicy_ 1

// Custom includes
#include <sys/socket.h>
#include "SocketPolicy.hh"
#include "ClientSocketHandle.hh"
#include "CommunicationPolicy.hh"

//#include "ReadWritePolicy.mpp"
//-/////////////////////////////////////////////////////////////////////////////////////////////////


struct sockaddr;

namespace senf {

    //\{

    struct ReadablePolicy : public ReadPolicyBase
    {
        static unsigned read(FileHandle & handle, char * buffer, unsigned size);

#       ifndef DOXYGEN
        template <class SPolicy>
        static unsigned readfrom(ClientSocketHandle<SPolicy> & handle, char * buffer, unsigned size,
                                 typename SPolicy::AddressingPolicy::Address & address,
                                 typename IfCommunicationPolicyIs<
                                     SPolicy,UnconnectedCommunicationPolicy>::type * = 0);
#       else
        template <class SPolicy>
        static unsigned readfrom(ClientSocketHandle<SPolicy> & handle, char * buffer, unsigned size,
                                 typename Policy::AddressingPolicy::Address & address);

#       endif

    private:
        static unsigned do_readfrom(FileHandle & handle, char * buffer, unsigned size,
                                    struct ::sockaddr * addr, socklen_t * len);
    };

    struct NotReadablePolicy : public ReadPolicyBase
    {};

    struct WriteablePolicy : public WritePolicyBase
    {
#       ifndef DOXYGEN
        template <class SPolicy>
        static unsigned write(ClientSocketHandle<SPolicy> & handle, char const * buffer, unsigned size,
                              typename IfCommunicationPolicyIs<
                                  SPolicy,ConnectedCommunicationPolicy>::type * = 0);
#       else
        template <class SPolicy>
        static unsigned write(ClientSocketHandle<SPolicy> & handle, char const * buffer,
                              unsigned size);

#       endif
#       ifndef DOXYGEN
        template <class SPolicy>
        static unsigned writeto(ClientSocketHandle<SPolicy> & handle,
                                typename boost::call_traits<
                                    typename SPolicy::AddressingPolicy::Address>::param_type addr,
                                char const * buffer, unsigned size,
                                typename IfCommunicationPolicyIs<
                                    SPolicy,UnconnectedCommunicationPolicy>::type * = 0);
#       else
        template <class SPolicy>
        static unsigned writeto(ClientSocketHandle<SPolicy> & handle,
                                typename Policy::AddressingPolicy::Address const & addr,
                                char const * buffer, unsigned size);

#       endif

    private:
        static unsigned do_write(FileHandle & handle, char const * buffer, unsigned size);
        static unsigned do_writeto(FileHandle & handle, char const * buffer, unsigned size,
                                   struct sockaddr const * addr, socklen_t len);
    };

    struct NotWriteablePolicy : public WritePolicyBase
    {};

    //\}

}


//-/////////////////////////////////////////////////////////////////////////////////////////////////
//#include "ReadWritePolicy.cci"
//#include "ReadWritePolicy.ct"
#include "ReadWritePolicy.cti"
#endif


// Local Variables:
// mode: c++
// fill-column: 100
// c-file-style: "senf"
// indent-tabs-mode: nil
// ispell-local-dictionary: "american"
// compile-command: "scons -u test"
// comment-column: 40
// End: