systemCall.H

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2011-2013 OpenFOAM Foundation
     \\/     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::systemCall
 
Group
    grpFunctionObjects
 
Description
    This function object executes system calls, entered in the form of a
    string lists.  Calls can be made at the following points in the
    calculation:
    - every time step
    - every output time
    - end of the calculation
 
    Example of function object specification:
    \verbatim
    systemCall1
    {
        type        systemCall;
        functionObjectLibs ("libsystemCall.so");
        ...
        executeCalls
        (
            "echo execute"
        );
        writeCalls
        (
            "echo \*\*\* writing data \*\*\*"
        );
        endCalls
        (
            "echo \*\*\* writing .bashrc \*\*\*"
            "cat ~/.bashrc"
            "echo \*\*\* done \*\*\*"
        );
    }
    \endverbatim
 
    \heading Function object usage
    \table
        Property     | Description             | Required    | Default value
        type         | type name: systemCall   | yes         |
        executeCalls | list of calls on execute | yes        |
        writeCalls   | list of calls on write  | yes         |
        endCalls     | list of calls on end    | yes         |
    \endtable
 
Note
    Since this function object executes system calls, there is a potential
    security risk.  In order to use the \c systemCall function object, the
    \c allowSystemOperations must be set to '1'; otherwise, system calls will
    not be allowed.
 
SeeAlso
    Foam::functionObject
    Foam::OutputFilterFunctionObject
 
SourceFiles
    systemCall.C
    IOsystemCall.H
 
\*---------------------------------------------------------------------------*/
 
#ifndef systemCall_H
#define systemCall_H
 
#include "stringList.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward declaration of classes
class objectRegistry;
class dictionary;
class polyMesh;
class mapPolyMesh;
 
/*---------------------------------------------------------------------------*\
                         Class systemCall Declaration
\*---------------------------------------------------------------------------*/
 
class systemCall
{
protected:
 
    // Private data
 
        //- Name of this set of system calls
        word name_;
 
        //- List of calls to execute - every step
        stringList executeCalls_;
 
        //- List of calls to execute when exiting the time-loop
        stringList endCalls_;
 
        //- List of calls to execute - write steps
        stringList writeCalls_;
 
 
    // Private Member Functions
 
        //- Disallow default bitwise copy construct
        systemCall(const systemCall&);
 
        //- Disallow default bitwise assignment
        void operator=(const systemCall&);
 
 
public:
 
    //- Runtime type information
    TypeName("systemCall");
 
 
    // Constructors
 
        //- Construct for given objectRegistry and dictionary.
        //  Allow the possibility to load fields from files
        systemCall
        (
            const word& name,
            const objectRegistry& unused,
            const dictionary&,
            const bool loadFromFilesUnused = false
        );
 
 
    //- Destructor
    virtual ~systemCall();
 
 
    // Member Functions
 
        //- Return name of the system call set
        virtual const word& name() const
        {
            return name_;
        }
 
        //- Read the system calls
        virtual void read(const dictionary&);
 
        //- Execute the "executeCalls" at each time-step
        virtual void execute();
 
        //- Execute the "endCalls" at the final time-loop
        virtual void end();
 
        //- Called when time was set at the end of the Time::operator++
        virtual void timeSet();
 
        //- Write, execute the "writeCalls"
        virtual void write();
 
        //- Update for changes of mesh
        virtual void updateMesh(const mapPolyMesh&)
        {}
 
        //- Update for changes of mesh
        virtual void movePoints(const polyMesh&)
        {}
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //