mirror of https://github.com/aria2/aria2
143 lines
4.3 KiB
C++
143 lines
4.3 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_ANNOUNCE_LIST_H
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#define D_ANNOUNCE_LIST_H
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#include "common.h"
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#include <memory>
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#include <deque>
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#include <vector>
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#include <string>
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#include "AnnounceTier.h"
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#include "ValueBase.h"
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namespace aria2 {
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class AnnounceList {
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public:
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private:
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std::deque<std::shared_ptr<AnnounceTier>> tiers_;
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std::deque<std::shared_ptr<AnnounceTier>>::iterator currentTier_;
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std::deque<std::string>::iterator currentTracker_;
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bool currentTrackerInitialized_;
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void resetIterator();
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void setCurrentTier(std::deque<std::shared_ptr<AnnounceTier>>::iterator itr);
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public:
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AnnounceList();
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AnnounceList(const std::vector<std::vector<std::string>>& announceList);
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AnnounceList(const std::deque<std::shared_ptr<AnnounceTier>>& tiers);
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~AnnounceList();
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// Don't allow copying
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AnnounceList(const AnnounceList&) = delete;
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AnnounceList& operator=(const AnnounceList&) = delete;
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void reconfigure(const std::vector<std::vector<std::string>>& announceList);
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void reconfigure(const std::string& url);
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size_t countTier() const;
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/**
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* Shuffles all the URLs in each group.
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*/
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void shuffle();
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/**
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* Returns announce URL.
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*/
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std::string getAnnounce() const;
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/**
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* Returns announce event, such as started, stopped, completed, etc.
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*/
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const char* getEventString() const;
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AnnounceTier::AnnounceEvent getEvent() const;
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void setEvent(AnnounceTier::AnnounceEvent event);
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/**
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* Removes current announce URL from its group and inserts it before the
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* first element of the group.
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* The internal announce group pointer points to the first element of the
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* first group after this call.
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*/
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void announceSuccess();
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/**
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* The internal announce URL pointer points to next URL.
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* If the current URL is the last element of its group, then the first
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* element of the next group is pointed.
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*/
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void announceFailure();
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/**
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* Counts the number of tiers to which the "stopped" event can be sent.
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*/
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size_t countStoppedAllowedTier() const;
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/**
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* Counts the number of tiers to which the "completed" event can be sent.
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*/
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size_t countCompletedAllowedTier() const;
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/**
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* Moves current tier pointer to the tier to which the "stopped" event can
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* be sent.
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* 2-stage search operation is made.
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* The first search operation is performed from current pointer position
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* to the end. If no such tier is found, the second search is performed from
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* the first to the current pointer position.
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*/
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void moveToStoppedAllowedTier();
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void moveToCompletedAllowedTier();
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bool allTiersFailed() const;
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void resetTier();
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bool currentTierAcceptsStoppedEvent() const;
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bool currentTierAcceptsCompletedEvent() const;
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};
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} // namespace aria2
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#endif // D_ANNOUNCE_LIST_H
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