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/* <!-- copyright */
/*
* aria2 - The high speed download utility
*
* Copyright (C) 2009 Tatsuhiro Tsujikawa
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the
* OpenSSL library under certain conditions as described in each
* individual source file, and distribute linked combinations
* including the two.
* You must obey the GNU General Public License in all respects
* for all of the code used other than OpenSSL. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you
* do not wish to do so, delete this exception statement from your
* version. If you delete this exception statement from all source
* files in the program, then also delete it here.
*/
/* copyright --> */
#include "UTMetadataRequestTracker.h"
#include <algorithm>
#include "Logger.h"
#include "LogFactory.h"
#include "fmt.h"
namespace aria2 {
UTMetadataRequestTracker::UTMetadataRequestTracker() {}
void UTMetadataRequestTracker::add(size_t index)
{
trackedRequests_.push_back(RequestEntry(index));
}
bool UTMetadataRequestTracker::tracks(size_t index)
{
return std::find(trackedRequests_.begin(), trackedRequests_.end(),
RequestEntry(index)) != trackedRequests_.end();
}
void UTMetadataRequestTracker::remove(size_t index)
{
auto i = std::find(trackedRequests_.begin(), trackedRequests_.end(),
RequestEntry(index));
if(i != trackedRequests_.end()) {
trackedRequests_.erase(i);
}
}
namespace {
struct RemoveTimeoutEntry {
RemoveTimeoutEntry(std::vector<size_t>& indexes)
: indexes(indexes)
{}
bool operator()(const UTMetadataRequestTracker::RequestEntry& ent) const
{
if(ent.elapsed(TIMEOUT)) {
A2_LOG_DEBUG(fmt("ut_metadata request timeout. index=%lu",
static_cast<unsigned long>(ent.index_)));
indexes.push_back(ent.index_);
return true;
} else {
return false;
}
}
std::vector<size_t>& indexes;
static const time_t TIMEOUT = 20;
};
} // namespace
std::vector<size_t> UTMetadataRequestTracker::removeTimeoutEntry()
{
std::vector<size_t> indexes;
trackedRequests_.erase(std::remove_if(trackedRequests_.begin(),
trackedRequests_.end(),
RemoveTimeoutEntry(indexes)),
trackedRequests_.end());
return indexes;
}
size_t UTMetadataRequestTracker::avail() const
{
const size_t MAX_OUTSTANDING_REQUEST = 1;
if(MAX_OUTSTANDING_REQUEST > count()) {
return MAX_OUTSTANDING_REQUEST-count();
} else {
return 0;
}
}
std::vector<size_t> UTMetadataRequestTracker::getAllTrackedIndex() const
{
std::vector<size_t> indexes;
for(auto& e: trackedRequests_) {
indexes.push_back(e.index_);
}
return indexes;
}
} // namespace aria2
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