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156 lines
4.1 KiB
C
156 lines
4.1 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2011-2015 OpenFOAM Foundation
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\\/ M anipulation | Copyright (C) 2016 OpenCFD Ltd.
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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\*---------------------------------------------------------------------------*/
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#include "fileStat.H"
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#include "IOstreams.H"
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#include "timer.H"
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#include <signal.h>
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#include <unistd.h>
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#include <sys/sysmacros.h>
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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Foam::fileStat::fileStat()
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:
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isValid_(false)
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{}
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Foam::fileStat::fileStat
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(
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const fileName& fName,
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const bool followLink,
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const unsigned int maxTime
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)
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{
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// Work on volatile
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volatile bool locIsValid = false;
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timer myTimer(maxTime);
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if (!timedOut(myTimer))
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{
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if (followLink)
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{
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locIsValid = (::stat(fName.c_str(), &status_) == 0);
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}
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else
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{
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locIsValid = (::lstat(fName.c_str(), &status_) == 0);
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}
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}
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// Copy into (non-volatile, possible register based) member var
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isValid_ = locIsValid;
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}
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Foam::fileStat::fileStat(Istream& is)
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{
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is >> *this;
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}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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bool Foam::fileStat::sameDevice(const fileStat& stat2) const
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{
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return
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isValid_
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&& (
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major(status_.st_dev) == major(stat2.status().st_dev)
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&& minor(status_.st_dev) == minor(stat2.status().st_dev)
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);
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}
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bool Foam::fileStat::sameINode(const fileStat& stat2) const
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{
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return isValid_ && (status_.st_ino == stat2.status().st_ino);
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}
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bool Foam::fileStat::sameINode(const label iNode) const
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{
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return isValid_ && (status_.st_ino == ino_t(iNode));
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}
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// * * * * * * * * * * * * * * * Friend Operators * * * * * * * * * * * * * //
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Foam::Istream& Foam::operator>>(Istream& is, fileStat& fStat)
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{
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FixedList<label, 13> stat(is);
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fStat.isValid_ = stat[0];
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dev_t st_dev = makedev(stat[1], stat[2]);
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fStat.status_.st_dev = st_dev;
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fStat.status_.st_ino = stat[3];
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fStat.status_.st_mode = stat[4];
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fStat.status_.st_uid = stat[5];
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fStat.status_.st_gid = stat[6];
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dev_t st_rdev = makedev(stat[7], stat[8]);
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fStat.status_.st_rdev = st_rdev;
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fStat.status_.st_size = stat[9];
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fStat.status_.st_atime = stat[10];
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fStat.status_.st_mtime = stat[11];
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fStat.status_.st_ctime = stat[12];
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// Check state of Istream
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is.check("Istream& operator>>(Istream&, fileStat&)");
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return is;
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}
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Foam::Ostream& Foam::operator<<(Ostream& os, const fileStat& fStat)
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{
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FixedList<label, 13> stat;
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stat[0] = label(fStat.isValid_);
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stat[1] = label(major(fStat.status_.st_dev));
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stat[2] = label(minor(fStat.status_.st_dev));
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stat[3] = label(fStat.status_.st_ino);
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stat[4] = label(fStat.status_.st_mode);
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stat[5] = label(fStat.status_.st_uid);
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stat[6] = label(fStat.status_.st_gid);
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stat[7] = label(major(fStat.status_.st_rdev));
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stat[8] = label(minor(fStat.status_.st_rdev));
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stat[9] = label(fStat.status_.st_size);
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stat[10] = label(fStat.status_.st_atime);
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stat[11] = label(fStat.status_.st_mtime);
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stat[12] = label(fStat.status_.st_ctime);
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return os << stat;
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}
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// ************************************************************************* //
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