mirror of https://github.com/aria2/aria2
120 lines
3.7 KiB
C++
120 lines
3.7 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) 2009 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 "UTMetadataRequestTracker.h"
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#include <algorithm>
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#include "Logger.h"
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#include "LogFactory.h"
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#include "fmt.h"
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namespace aria2 {
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UTMetadataRequestTracker::UTMetadataRequestTracker() {}
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void UTMetadataRequestTracker::add(size_t index)
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{
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trackedRequests_.push_back(RequestEntry(index));
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}
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bool UTMetadataRequestTracker::tracks(size_t index)
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{
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return std::find(trackedRequests_.begin(), trackedRequests_.end(),
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RequestEntry(index)) != trackedRequests_.end();
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}
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void UTMetadataRequestTracker::remove(size_t index)
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{
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std::vector<RequestEntry>::iterator i =
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std::find(trackedRequests_.begin(), trackedRequests_.end(),
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RequestEntry(index));
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if(i != trackedRequests_.end()) {
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trackedRequests_.erase(i);
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}
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}
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namespace {
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struct RemoveTimeoutEntry {
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RemoveTimeoutEntry(std::vector<size_t>& indexes)
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: indexes(indexes)
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{}
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bool operator()(const UTMetadataRequestTracker::RequestEntry& ent) const
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{
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if(ent.elapsed(TIMEOUT)) {
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A2_LOG_DEBUG(fmt("ut_metadata request timeout. index=%lu",
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static_cast<unsigned long>(ent.index_)));
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indexes.push_back(ent.index_);
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return true;
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} else {
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return false;
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}
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}
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std::vector<size_t>& indexes;
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static const time_t TIMEOUT = 20;
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};
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} // namespace
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std::vector<size_t> UTMetadataRequestTracker::removeTimeoutEntry()
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{
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std::vector<size_t> indexes;
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trackedRequests_.erase(std::remove_if(trackedRequests_.begin(),
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trackedRequests_.end(),
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RemoveTimeoutEntry(indexes)),
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trackedRequests_.end());
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return indexes;
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}
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size_t UTMetadataRequestTracker::avail() const
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{
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const size_t MAX_OUTSTANDING_REQUEST = 1;
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if(MAX_OUTSTANDING_REQUEST > count()) {
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return MAX_OUTSTANDING_REQUEST-count();
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} else {
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return 0;
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}
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}
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std::vector<size_t> UTMetadataRequestTracker::getAllTrackedIndex() const
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{
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std::vector<size_t> indexes;
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for(std::vector<RequestEntry>::const_iterator i = trackedRequests_.begin(),
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eoi = trackedRequests_.end(); i != eoi; ++i) {
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indexes.push_back((*i).index_);
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}
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return indexes;
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}
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} // namespace aria2
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