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126 lines
3.1 KiB
C
126 lines
3.1 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) 2010-2010 OpenCFD Ltd.
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\\/ M anipulation |
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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 "memInfo.H"
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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Foam::memInfo::memInfo()
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:
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peak_(-1),
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size_(-1),
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rss_(-1)
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{
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update();
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}
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// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
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Foam::memInfo::~memInfo()
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{}
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// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
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const Foam::memInfo& Foam::memInfo::update()
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{
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// reset to invalid values first
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peak_ = size_ = rss_ = -1;
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IFstream is("/proc/" + name(pid()) + "/status");
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while (is.good())
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{
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string line;
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is.getLine(line);
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char tag[32];
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int value;
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if (sscanf(line.c_str(), "%30s %d", tag, &value) == 2)
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{
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if (!strcmp(tag, "VmPeak:"))
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{
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peak_ = value;
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}
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else if (!strcmp(tag, "VmSize:"))
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{
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size_ = value;
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}
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else if (!strcmp(tag, "VmRSS:"))
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{
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rss_ = value;
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}
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}
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}
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return *this;
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}
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bool Foam::memInfo::valid() const
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{
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return peak_ != -1;
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}
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// * * * * * * * * * * * * * * * IOstream Operators * * * * * * * * * * * * //
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Foam::Istream& Foam::operator>>(Istream& is, memInfo& m)
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{
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is.readBegin("memInfo");
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is >> m.peak_ >> m.size_ >> m.rss_;
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is.readEnd("memInfo");
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// Check state of Istream
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is.check
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(
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"Foam::Istream& Foam::operator>>(Foam::Istream&, Foam::memInfo&)"
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);
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return is;
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}
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Foam::Ostream& Foam::operator<<(Ostream& os, const memInfo& m)
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{
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os << token::BEGIN_LIST
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<< m.peak_ << token::SPACE << m.size_ << token::SPACE << m.rss_
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<< token::END_LIST;
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// Check state of Ostream
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os.check
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(
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"Foam::Ostream& Foam::operator<<(Foam::Ostream&, "
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"const Foam::memInfo&)"
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);
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return os;
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}
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// ************************************************************************* //
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