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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 1991-2010 OpenCFD Ltd.
     \\/     M anipulation  |
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.

    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.

    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.

Class
    Foam::prefixOSstream

Description
    Version of OSstream which prints a prefix on each line.

    This is useful for running in parallel as it allows the processor number
    to be automatically prepended to each message line.

SourceFiles
    prefixOSstream.C

\*---------------------------------------------------------------------------*/

#ifndef prefixOSstream_H
#define prefixOSstream_H

#include <OpenFOAM/OSstream.H>

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{

/*---------------------------------------------------------------------------*\
                           Class prefixOSstream Declaration
\*---------------------------------------------------------------------------*/

class prefixOSstream
:
    public OSstream
{
    // Private data

        bool printPrefix_;
        string prefix_;


    // Private member functions

        inline void checkWritePrefix();


public:

    // Constructors

        //- Set stream status
        prefixOSstream
        (
            ostream& os,
            const string& name,
            streamFormat format=ASCII,
            versionNumber version=currentVersion,
            compressionType compression=UNCOMPRESSED
        );


    // Member functions

        // Enquiry

            //- Return the prefix of the stream
            const string& prefix() const
            {
                return prefix_;
            }

            //- Return non-const access to the prefix of the stream
            string& prefix()
            {
                return prefix_;
            }


        // Write functions

            //- Write next token to stream
            virtual Ostream& write(const token&);

            //- Write character
            virtual Ostream& write(const char);

            //- Write character string
            virtual Ostream& write(const char*);

            //- Write word
            virtual Ostream& write(const word&);

            //- Write string
            virtual Ostream& write(const string&);

            //- Write std::string surrounded by quotes.
            //  Optional write without quotes.
            virtual Ostream& writeQuoted
            (
                const std::string&,
                const bool quoted=true
            );

            //- Write label
            virtual Ostream& write(const label);

            //- Write floatScalar
            virtual Ostream& write(const floatScalar);

            //- Write doubleScalar
            virtual Ostream& write(const doubleScalar);

            //- Write binary block
            virtual Ostream& write(const char*, std::streamsize);

            //- Add indentation characters
            virtual void indent();


        // Print

            //- Print description of IOstream to Ostream
            virtual void print(Ostream&) const;
};


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace Foam

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

// ************************ vim: set sw=4 sts=4 et: ************************ //