sigInt.C

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-------------------------------------------------------------------------------
    Copyright (C) 2011-2015 OpenFOAM Foundation
    Copyright (C) 2011 Symscape
    Copyright (C) 2018-2021 OpenCFD Ltd.
-------------------------------------------------------------------------------
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
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#include "sigInt.H"
#include "error.H"
#include "JobInfo.H"
#include "IOstreams.H"
 
// File-local functions
#include "signalMacros.C"
 
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
bool Foam::sigInt::sigActive_ = false;
 
 
// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
 
void Foam::sigInt::sigHandler(int)
{
    resetHandler("SIGINT", SIGINT);
 
    JobInfo::shutdown();        // From running -> finished
    ::raise(SIGINT);            // Throw signal (to old handler)
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::sigInt::sigInt()
{
    set(false);
}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
Foam::sigInt::~sigInt()
{
    unset(false);
}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
void Foam::sigInt::set(bool)
{
    if (sigActive_)
    {
        return;
    }
    sigActive_ = true;
 
    setHandler("SIGINT", SIGINT, sigHandler);
}
 
 
void Foam::sigInt::unset(const bool verbose)
{
    if (!sigActive_)
    {
        return;
    }
    sigActive_ = false;
 
    resetHandler("SIGINT", SIGINT);
}
 
 
// ************************************************************************* //