aria2/src/FileAllocationCommand.cc

107 lines
3.7 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 "FileAllocationCommand.h"
#include "FileAllocationMan.h"
#include "FileAllocationEntry.h"
#include "DownloadEngine.h"
#include "RequestGroup.h"
#include "Logger.h"
#include "message.h"
#include "prefs.h"
#include "util.h"
#include "DownloadEngine.h"
#include "DownloadContext.h"
#include "a2functional.h"
#include "RecoverableException.h"
#include "wallclock.h"
#include "RequestGroupMan.h"
#include "CheckIntegrityEntry.h"
#include "ServerStatMan.h"
namespace aria2 {
FileAllocationCommand::FileAllocationCommand
(cuid_t cuid, RequestGroup* requestGroup, DownloadEngine* e,
const SharedHandle<FileAllocationEntry>& fileAllocationEntry):
RealtimeCommand(cuid, requestGroup, e),
_fileAllocationEntry(fileAllocationEntry) {}
FileAllocationCommand::~FileAllocationCommand() {}
bool FileAllocationCommand::executeInternal()
{
if(getRequestGroup()->isHaltRequested()) {
getDownloadEngine()->getFileAllocationMan()->dropPickedEntry();
return true;
}
_fileAllocationEntry->allocateChunk();
if(_fileAllocationEntry->finished()) {
if(getLogger()->debug()) {
getLogger()->debug
(MSG_ALLOCATION_COMPLETED,
_timer.difference(global::wallclock),
util::itos(getRequestGroup()->getTotalLength(), true).c_str());
}
getDownloadEngine()->getFileAllocationMan()->dropPickedEntry();
std::vector<Command*> commands;
try {
_fileAllocationEntry->prepareForNextAction(commands, getDownloadEngine());
} catch(RecoverableException& e) {
std::for_each(commands.begin(), commands.end(), Deleter());
throw;
}
getDownloadEngine()->addCommand(commands);
getDownloadEngine()->setNoWait(true);
return true;
} else {
getDownloadEngine()->addCommand(this);
return false;
}
}
bool FileAllocationCommand::handleException(Exception& e)
{
getDownloadEngine()->getFileAllocationMan()->dropPickedEntry();
getLogger()->error
(MSG_FILE_ALLOCATION_FAILURE, e, util::itos(getCuid()).c_str());
getLogger()->error
(MSG_DOWNLOAD_NOT_COMPLETE, util::itos(getCuid()).c_str(),
getRequestGroup()->getDownloadContext()->getBasePath().c_str());
return true;
}
} // namespace aria2