mirror of https://github.com/aria2/aria2
112 lines
3.0 KiB
C++
112 lines
3.0 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_ASYNC_NAME_RESOLVER_H_
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#define _D_ASYNC_NAME_RESOLVER_H_
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#include "common.h"
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#include "SharedHandle.h"
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#include "a2netcompat.h"
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#include <string>
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#include <deque>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <ares.h>
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#ifdef __cplusplus
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} /* end of extern "C" */
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#endif
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namespace aria2 {
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class AsyncNameResolver {
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#ifdef HAVE_LIBCARES1_5
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friend void callback(void* arg, int status, int timeouts, struct hostent* host);
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#else
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friend void callback(void* arg, int status, struct hostent* host);
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#endif // HAVE_LIBCARES1_5
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public:
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enum STATUS {
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STATUS_READY,
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STATUS_QUERYING,
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STATUS_SUCCESS,
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STATUS_ERROR,
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};
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private:
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STATUS status;
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ares_channel channel;
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std::deque<std::string> _resolvedAddresses;
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std::string error;
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std::string _hostname;
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public:
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AsyncNameResolver();
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~AsyncNameResolver();
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void resolve(const std::string& name);
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const std::deque<std::string>& getResolvedAddresses() const;
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const std::string& getError() const;
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STATUS getStatus() const;
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int getFds(fd_set* rfdsPtr, fd_set* wfdsPtr) const;
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void process(fd_set* rfdsPtr, fd_set* wfdsPtr);
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#ifdef HAVE_LIBCARES
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int getsock(sock_t* sockets) const;
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void process(ares_socket_t readfd, ares_socket_t writefd);
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#endif // HAVE_LIBCARES
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bool operator==(const AsyncNameResolver& resolver) const;
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void setAddr(const std::string& addrString);
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void reset();
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const std::string& getHostname() const;
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};
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} // namespace aria2
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#endif // _D_ASYNC_NAME_RESOLVER_H_
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