mirror of https://github.com/aria2/aria2
81 lines
2.7 KiB
C++
81 lines
2.7 KiB
C++
/* <!-- copyright */
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/*
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* aria2 - The high speed download utility
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*
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* Copyright (C) 2012 Tatsuhiro Tsujikawa
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* In addition, as a special exception, the copyright holders give
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* permission to link the code of portions of this program with the
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* OpenSSL library under certain conditions as described in each
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* individual source file, and distribute linked combinations
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* including the two.
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* You must obey the GNU General Public License in all respects
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* for all of the code used other than OpenSSL. If you modify
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* file(s) with this exception, you may extend this exception to your
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* version of the file(s), but you are not obligated to do so. If you
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* do not wish to do so, delete this exception statement from your
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* version. If you delete this exception statement from all source
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* files in the program, then also delete it here.
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*/
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/* copyright --> */
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#include "TransferStat.h"
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#include <algorithm>
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namespace aria2 {
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TransferStat operator+(const TransferStat& a, const TransferStat& b)
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{
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TransferStat c(a);
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c += b;
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return c;
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}
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TransferStat operator-(const TransferStat& a, const TransferStat& b)
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{
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TransferStat c(a);
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c -= b;
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return c;
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}
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TransferStat& TransferStat::operator+=(const TransferStat& b)
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{
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downloadSpeed += b.downloadSpeed;
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uploadSpeed += b.uploadSpeed;
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sessionDownloadLength += b.sessionDownloadLength;
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sessionUploadLength += b.sessionUploadLength;
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return *this;
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}
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TransferStat& TransferStat::operator-=(const TransferStat& b)
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{
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downloadSpeed -= b.downloadSpeed;
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uploadSpeed -= b.uploadSpeed;
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sessionDownloadLength -= b.sessionDownloadLength;
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sessionUploadLength -= b.sessionUploadLength;
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downloadSpeed = std::max(0, downloadSpeed);
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uploadSpeed = std::max(0, uploadSpeed);
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sessionDownloadLength = std::max(static_cast<int64_t>(0),
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sessionDownloadLength);
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sessionUploadLength = std::max(static_cast<int64_t>(0),
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sessionUploadLength);
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return *this;
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}
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} // namespace aria2
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