mirror of https://github.com/aria2/aria2
112 lines
3.9 KiB
C++
112 lines
3.9 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) 2013 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_ASYNC_NAME_RESOLVER_MAN_H
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#define D_ASYNC_NAME_RESOLVER_MAN_H
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#include "common.h"
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#include <vector>
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#include <string>
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#include <memory>
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namespace aria2 {
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class AsyncNameResolver;
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class DownloadEngine;
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class Command;
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class Option;
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class AsyncNameResolverMan {
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public:
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AsyncNameResolverMan();
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// Destructor does not call disableNameResolverCheck(). Application
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// must call it before the destruction of this object.
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~AsyncNameResolverMan();
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// Enable IPv4 address lookup. default: true
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void setIPv4(bool ipv4)
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{
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ipv4_ = ipv4;
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}
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// Enable IPv6 address lookup. default: true
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void setIPv6(bool ipv6)
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{
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ipv6_ = ipv6;
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}
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// Returns true if asynchronous name resolution has been started.
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bool started() const;
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// Starts asynchronous name resolution.
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void startAsync(const std::string& hostname, DownloadEngine* e,
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Command* command);
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// Appends resolved addresses to |res|.
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void getResolvedAddress(std::vector<std::string>& res) const;
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// Adds resolvers to DownloadEngine to check event notification.
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void setNameResolverCheck(DownloadEngine* e, Command* command);
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// Removes resolvers from DownloadEngine.
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void disableNameResolverCheck(DownloadEngine* e, Command* command);
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// Returns true if any of resolvers are added in DownloadEngine.
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bool resolverChecked() const
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{
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return resolverCheck_;
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}
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// Returns status value: 0 for inprogress, 1 for success and -1 for
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// failure.
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int getStatus() const;
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// Returns last error string
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const std::string& getLastError() const;
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// Resets state. Also removes resolvers from DownloadEngine.
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void reset(DownloadEngine* e, Command* command);
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private:
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void startAsyncFamily(const std::string& hostname,
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int family,
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DownloadEngine* e, Command* command);
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void setNameResolverCheck(size_t resolverIndex, DownloadEngine* e,
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Command* command);
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void disableNameResolverCheck(size_t index, DownloadEngine* e,
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Command* command);
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std::shared_ptr<AsyncNameResolver> asyncNameResolver_[2];
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size_t numResolver_;
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int resolverCheck_;
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bool ipv4_;
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bool ipv6_;
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};
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void configureAsyncNameResolverMan(AsyncNameResolverMan* asyncNameResolverMan,
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Option* option);
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} // namespace aria2
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#endif // D_ASYNC_NAME_RESOLVER_MAN_H
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