mirror of https://github.com/aria2/aria2
118 lines
3.6 KiB
C++
118 lines
3.6 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) 2006 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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#ifndef _D_ABSTRACT_COMMAND_H_
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#define _D_ABSTRACT_COMMAND_H_
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#include "Command.h"
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#include "SharedHandle.h"
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#include "TimeA2.h"
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#include "RequestGroupAware.h"
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namespace aria2 {
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class Request;
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class DownloadEngine;
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class RequestGroup;
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class Segment;
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class Exception;
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class SocketCore;
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#ifdef ENABLE_ASYNC_DNS
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class AsyncNameResolver;
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#endif // ENABLE_ASYNC_DNS
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class AbstractCommand : public Command, public RequestGroupAware {
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private:
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Time checkPoint;
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time_t timeout;
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protected:
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SharedHandle<Request> req;
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DownloadEngine* e;
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SharedHandle<SocketCore> socket;
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std::deque<SharedHandle<Segment> > _segments;
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#ifdef ENABLE_ASYNC_DNS
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SharedHandle<AsyncNameResolver> _asyncNameResolver;
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bool isAsyncNameResolverInitialized() const;
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void initAsyncNameResolver(const std::string& hostname);
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bool asyncResolveHostname();
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const std::deque<std::string>& getResolvedAddresses();
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#endif // ENABLE_ASYNC_DNS
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void tryReserved();
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virtual bool prepareForRetry(time_t wait);
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virtual void onAbort();
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virtual bool executeInternal() = 0;
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void setReadCheckSocket(const SharedHandle<SocketCore>& socket);
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void setWriteCheckSocket(const SharedHandle<SocketCore>& socket);
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void disableReadCheckSocket();
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void disableWriteCheckSocket();
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void setTimeout(time_t timeout) { this->timeout = timeout; }
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void prepareForNextAction(Command* nextCommand = 0);
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private:
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bool checkSocketIsReadable;
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bool checkSocketIsWritable;
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SharedHandle<SocketCore> readCheckTarget;
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SharedHandle<SocketCore> writeCheckTarget;
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bool nameResolverCheck;
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#ifdef ENABLE_ASYNC_DNS
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void setNameResolverCheck(const SharedHandle<AsyncNameResolver>& resolver);
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void disableNameResolverCheck(const SharedHandle<AsyncNameResolver>& resolver);
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bool nameResolveFinished() const;
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#endif // ENABLE_ASYNC_DNS
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public:
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AbstractCommand(int32_t cuid, const SharedHandle<Request>& req,
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RequestGroup* requestGroup, DownloadEngine* e,
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const SharedHandle<SocketCore>& s = SharedHandle<SocketCore>());
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virtual ~AbstractCommand();
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bool execute();
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};
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} // namespace aria2
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#endif // _D_ABSTRACT_COMMAND_H_
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