97 lines
2.7 KiB
C++
Executable File
97 lines
2.7 KiB
C++
Executable File
/**
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* @file llupdatedownloader.h
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*
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* $LicenseInfo:firstyear=2010&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2010, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; 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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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#ifndef LL_UPDATE_DOWNLOADER_H
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#define LL_UPDATE_DOWNLOADER_H
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#include <string>
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#include <boost/shared_ptr.hpp>
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#include "lluri.h"
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//
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// An asynchronous download service for fetching updates.
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//
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class LLUpdateDownloader
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{
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public:
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class Client;
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class Implementation;
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// Returns the path to the download marker file containing details of the
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// latest download.
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static std::string downloadMarkerPath(void);
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LLUpdateDownloader(Client & client);
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// Cancel any in progress download; a no op if none is in progress. The
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// client will not receive a complete or error callback.
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void cancel(void);
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// Start a new download.
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void download(LLURI const & uri,
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std::string const & hash,
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std::string const & updateChannel,
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std::string const & updateVersion,
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std::string const & info_url,
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bool required=false);
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// Returns true if a download is in progress.
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bool isDownloading(void);
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// Resume a partial download.
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void resume(void);
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// Set a limit on the dowload rate.
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void setBandwidthLimit(U64 bytesPerSecond);
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private:
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boost::shared_ptr<Implementation> mImplementation;
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};
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//
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// An interface to be implemented by clients initiating a update download.
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//
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class LLUpdateDownloader::Client {
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public:
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// The download has completed successfully.
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// data is a map containing the following items:
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// url - source (remote) location
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// hash - the md5 sum that should match the installer file.
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// path - destination (local) location
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// required - boolean indicating if this is a required update.
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// size - the size of the installer in bytes
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virtual void downloadComplete(LLSD const & data) = 0;
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// The download failed.
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virtual void downloadError(std::string const & message) = 0;
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};
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#endif
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