aria2/src/StreamFileAllocationEntry.cc

95 lines
3.6 KiB
C++

/* <!-- copyright */
/*
* aria2 - The high speed download utility
*
* Copyright (C) 2006 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 "StreamFileAllocationEntry.h"
#include <algorithm>
#include "DownloadEngine.h"
#include "Option.h"
#include "prefs.h"
#include "RequestGroup.h"
#include "DownloadContext.h"
#include "Command.h"
#include "PeerStat.h"
#include "FileEntry.h"
namespace aria2 {
StreamFileAllocationEntry::StreamFileAllocationEntry(RequestGroup* requestGroup,
Command* nextCommand):
FileAllocationEntry(requestGroup, nextCommand)
{}
StreamFileAllocationEntry::~StreamFileAllocationEntry() {}
void StreamFileAllocationEntry::prepareForNextAction
(std::vector<Command*>& commands,
DownloadEngine* e)
{
// For DownloadContext::resetDownloadStartTime(), see also
// RequestGroup::createInitialCommand()
getRequestGroup()->getDownloadContext()->resetDownloadStartTime();
if(getNextCommand()) {
// Reset download start time of PeerStat because it is started
// before file allocation begins.
const SharedHandle<DownloadContext>& dctx =
getRequestGroup()->getDownloadContext();
const std::vector<SharedHandle<FileEntry> >& fileEntries =
dctx->getFileEntries();
for(std::vector<SharedHandle<FileEntry> >::const_iterator i =
fileEntries.begin(), eoi = fileEntries.end(); i != eoi; ++i) {
const std::deque<SharedHandle<Request> >& reqs =
(*i)->getInFlightRequests();
for(std::deque<SharedHandle<Request> >::const_iterator j =
reqs.begin(), eoj = reqs.end(); j != eoj; ++j) {
const SharedHandle<PeerStat>& peerStat = (*j)->getPeerStat();
if(peerStat) {
peerStat->downloadStart();
}
}
}
// give _nextCommand a chance to execute in the next execution loop.
getNextCommand()->setStatus(Command::STATUS_ONESHOT_REALTIME);
e->setNoWait(true);
commands.push_back(popNextCommand());
// try remaining uris
getRequestGroup()->createNextCommandWithAdj(commands, e, -1);
} else {
getRequestGroup()->createNextCommandWithAdj(commands, e, 0);
}
}
} // namespace aria2