WriteHelper.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_Scheduler_WriteHelper_
#define HH_SENF_Scheduler_WriteHelper_ 1

// Custom includes
#include <string>
#include <boost/intrusive_ptr.hpp>
#include <boost/function.hpp>
#include <senf/Utils/intrusive_refcount.hh>
#include "FdEvent.hh"

//#include "WriteHelper.mpp"
//-/////////////////////////////////////////////////////////////////////////////////////////////////

namespace senf {

    template <class Handle>
    class WriteHelper
        : public senf::intrusive_refcount
    {
    public:
        //-////////////////////////////////////////////////////////////////////////
        // Types

        typedef boost::intrusive_ptr<WriteHelper> ptr; 
        typedef boost::function<void (ptr)> Callback; 

        //-////////////////////////////////////////////////////////////////////////
        //\{

        static ptr dispatch(Handle handle, std::string const & data, Callback callback);

        //\}
        //-////////////////////////////////////////////////////////////////////////

        Handle handle() const;

        std::string const & data() const; 

        bool complete() const;          
        bool error() const;             
        void throw_error() const;       

        void revoke();                  

    protected:

    private:
        WriteHelper(Handle handle, std::string const & data, Callback callback);

        static void dispatchProcess(ptr helper, Handle handle,
                                    senf::scheduler::FdEvent::Events event);
        void process(Handle handle, senf::scheduler::FdEvent::Events event);
        void done();

        Handle handle_;
        scheduler::FdEvent fde_;
        mutable std::string data_;
        Callback callback_;

        mutable std::string::iterator offset_;
        int errno_;
    };


}

//-/////////////////////////////////////////////////////////////////////////////////////////////////
//#include "WriteHelper.cci"
#include "WriteHelper.ct"
#include "WriteHelper.cti"
//#include "WriteHelper.mpp"
#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: