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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2011-2020 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::fileStat
Description
Wrapper for stat() system call.
Warning
on Linux (an maybe on others) a stat() of an nfs mounted (remote)
file does never timeout and cannot be interrupted!
So e.g. Foam::ping first and hope nfs is running.
SourceFiles
fileStat.C
\*---------------------------------------------------------------------------*/
#ifndef fileStat_H
#define fileStat_H
#include <sys/stat.h>
#include <sys/types.h>
#include "label.H"
#include "fileName.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
// Forward declaration of friend functions and operators
class fileStat;
Istream& operator>>(Istream&, fileStat&);
Ostream& operator<<(Ostream&, const fileStat&);
/*---------------------------------------------------------------------------*\
Class fileStat Declaration
\*---------------------------------------------------------------------------*/
class fileStat
{
// Private Data
struct stat status_;
bool isValid_;
public:
// Public static data
//- Number of file variants
static const label nVariants_;
//- Extensions of the file variants
static const char* variantExts_[];
// Constructors
//- Empty constructor
fileStat();
//- Construct from components.
// followLink : in case of link get status of pointed-to file
// maxTime : time out
fileStat
(
const fileName& fName,
const bool checkVariants = true,
const bool followLink = true,
const unsigned int maxTime = 0
);
//- Construct from Istream
fileStat(Istream&);
// Member Functions
// Access
//- Raw status
const struct stat& status() const
{
return status_;
}
//- Did constructor fail
bool isValid() const
{
return isValid_;
}
// Check
//- Compare two fileStats for same device
bool sameDevice(const fileStat& stat2) const;
//- Compare two fileStats for same Inode
bool sameINode(const fileStat& stat2) const;
//- Compare state against inode
bool sameINode(const label iNode) const;
// IOstream Operators
friend Istream& operator>>(Istream&, fileStat&);
friend Ostream& operator<<(Ostream&, const fileStat&);
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
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