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* Remove PeerStorage::getActivePeers() and add getUsedPeers() insteadTatsuhiro Tsujikawa2013-01-261-2/+6
| | | | | PeerStorage::getUsedPeers() returns non-active peers, so caller must call Peer::isActive() to get active peers.
* Refactor peer list management in DefaultPeerStorageTatsuhiro Tsujikawa2013-01-261-13/+10
| | | | | | | | Peer list is now divided into 2: unusedPeers_ and usedPeers_. Duplicate check is done using std::set by comparing pair of IP address and port. For this, only IP address and port given to the Peer constructor are used. In other words, TCP port received from extended message is not used for this purpose.
* Reworked download/upload statistics calculationTatsuhiro Tsujikawa2012-10-251-9/+0
| | | | | | | | | | | | | | The old implementation calculates download/upload statistics for a RequestGroup by summing up all PeerStat objects. For global statistics, those are summed together. This clearly incurs runtime penalty and we introduced some kind of caching which updates statistics every 250ms but it did not work right. This change removes all these aggregation code, and instead makes RequestGroup and RequestGroupMan objects hold NetStat object and download/upload bytes are directly calculated by thier own NetStat. This is far more simplar than the old way and less runtime penalty and brings more accuracy.
* Removed *Handle typedefTatsuhiro Tsujikawa2012-09-281-3/+1
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* Ignore peer which possibly sent bad data in next few minuts.Tatsuhiro Tsujikawa2011-12-031-0/+11
| | | | | | | | In aria2, one piece is downloaded from several peers, so when hash check failed for that piece, it cannot determine which peer(s) sent bad data. So, we ignore peer who sent last block of data in random minutes. We use randomized timeout because all peers get waken up at the almost same time.
* Retry DHT get_peers task if the number of peers in PeerStorage is lessTatsuhiro Tsujikawa2011-07-291-0/+6
| | | | | | than max peers. Added virtual size_t countPeer() const to PeerStorage.
* 2010-10-31 Tatsuhiro Tsujikawa <t-tujikawa@users.sourceforge.net>Tatsuhiro Tsujikawa2010-10-311-3/+3
| | | | | | Made #include guard consistent for c++ header files.
* 2010-08-04 Tatsuhiro Tsujikawa <t-tujikawa@users.sourceforge.net>Tatsuhiro Tsujikawa2010-08-041-0/+5
| | | | | | | | | | | | | | Rewritten ut_pex peer selection. * src/DefaultBtInteractive.cc * src/DefaultPeerStorage.cc * src/DefaultPeerStorage.h * src/PeerStorage.h * src/UTPexExtensionMessage.h * test/DefaultPeerStorageTest.cc * test/MockPeerStorage.h * test/UTPexExtensionMessageTest.cc
* 2010-02-28 Tatsuhiro Tsujikawa <t-tujikawa@users.sourceforge.net>Tatsuhiro Tsujikawa2010-02-281-3/+6
| | | | | | | Use vector instead of deque for containers which is used for mostly read-only purpose.
* 2010-01-06 Tatsuhiro Tsujikawa <t-tujikawa@users.sourceforge.net>Tatsuhiro Tsujikawa2010-01-051-1/+1
| | | | | | | | | Untabify. Fixed one line in copyright which is longer than 80 columns. * src * test
* 2009-05-13 Tatsuhiro Tsujikawa <t-tujikawa@users.sourceforge.net>Tatsuhiro Tsujikawa2009-05-121-0/+2
| | | | | | | | | | | Added "downloadSpeed" and uploadSpeed" key in getPeers response. * src/DefaultPeerStorage.cc * src/DefaultPeerStorage.h * src/PeerStorage.h * src/XmlRpcMethodImpl.cc * test/MockPeerStorage.h
* 2009-03-19 Tatsuhiro Tsujikawa <t-tujikawa@users.sourceforge.net>Tatsuhiro Tsujikawa2009-03-191-0/+2
| | | | | | | | | | | | | | | | | | Reduced the number of calls to PeerStorage::calculateStat() and SegmentMan::calculateDownloadSpeed() to lower CPU usage on higher transfer rate. * src/DefaultBtInteractive.cc * src/DefaultBtMessageDispatcher.cc * src/DefaultPeerStorage.cc * src/DefaultPeerStorage.h * src/DownloadCommand.cc * src/DownloadEngine.cc * src/PeerStorage.h * src/SegmentMan.cc * src/SegmentMan.h * test/MockPeerStorage.h
* 2008-05-11 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com>Tatsuhiro Tsujikawa2008-05-111-1/+1
| | | | | | | | | | | | | Changed method signature: PeerStorage::getActivePeers * src/DHTPeerAnnounceEntry.cc * src/DefaultPeerStorage.cc * src/DefaultPeerStorage.h * src/PeerStorage.h * test/DefaultPeerStorageTest.cc * test/MockPeerStorage.h
* 2008-04-13 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com>Tatsuhiro Tsujikawa2008-04-131-0/+4
| | | | | | | | | | | | | | | | | | | | Rewritten choking algorithm. * src/PeerChokeCommand.{cc, h} * src/BtInterestedMessage.cc * src/PeerSessionResource.{cc, h} * src/DefaultPeerStorage.{cc, h} * src/BtNotInterestedMessage.cc * src/DefaultBtMessageDispatcher.{cc, h} * src/BtMessageDispatcher.h * src/Peer.{cc, h} * src/BtLeecherStateChoke.{cc, h} * src/BtSetup.cc * src/BtSeederStateChoke.{cc, h} * src/PeerStorage.h * test/MockPeerStorage.h * test/MockBtMessageDispatcher.h
* 2008-02-08 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com>Tatsuhiro Tsujikawa2008-02-081-7/+14
| | | | | | | | | Removed "using namespace std;" from all sources. Appended std:: prefix to c++ standard classes. Included string.h where mem* function are used.
* 2007-12-25 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com>Tatsuhiro Tsujikawa2007-12-251-6/+0
| | | | | | | | | | | | | | | Removed incomingPeer. Set 0 to peer's port if it is not a listening port. * src/DefaultPeerStorage.{h, cc} * test/DefaultPeerStorageTest.cc * src/HandshakeExtensionMessage.cc * test/HandshakeExtensionMessageTest.cc * src/Peer.{h, cc}: Added ipaddr and port to identity comparison. * src/PeerStorage.h * test/MockPeerStorage.h * src/PeerListenCommand.cc
* 2007-10-12 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com>Tatsuhiro Tsujikawa2007-10-111-64/+1
| | | | | | | | | | Implemented BitTorrent/http/ftp integrated download. I've rewritten lots of files and now some headers have forward class declarations to reduce compile time. The implementation is extremely alpha stage, I recommend to use this for testing purpose only.
* 2007-04-06 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com>Tatsuhiro Tsujikawa2007-04-051-1/+33
| | | | | | | | | | | | | | | | | | | | | | | | * src/PeerAbstractCommand.cc (onAbort): Call PeerStorage::returnPeer() * src/DefaultPeerStorage.h, src/DefaultPeerStorage.cc (incomingPeers): New variable. (addIncomingPeer): New function. (returnPeer): New function. (onErasingPeer): New function. (addPeer): push_back -> push_front (getActivePeers): Rewritten. (calculateStat): Rewritten. * src/PeerStorage.h (TransferStat::copy): New function. (TransferStat::TransferStat): New function. (TransferStat::operator=): New function. (addIncomingPeer): New function. (returnPeer): New function. * src/PeerListenCommand.cc (execute): Use PeerStorage::addIncomingPeer() instead of Peer::addPeer().
* 2007-01-26 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com>Tatsuhiro Tsujikawa2007-01-251-12/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | * src/message.h: Added EX_INVALID_PAYLOAD_SIZE and EX_INVALID_BT_MESSAGE_ID. Following source files affected. * src/BtAllowedFastMessage.cc: * src/BtBitfieldMessage.cc * src/BtCancelMessage.cc * src/BtChokeMessage.cc * src/BtHaveAllMessage.cc * src/BtHaveMessage.cc * src/BtHaveNoneMessage.cc * src/BtInterestedMessage.cc * src/BtNotInterestedMessage.cc * src/BtPieceMessage.cc * src/BtPortMessage.cc * src/BtRejectMessage.cc * src/BtRequestMessage.cc * src/BtSuggestPieceMessage.cc * src/BtUnchokeMessage.cc * src/message.h: Added EX_INVALID_CHUNK_CHECKSUM. Following source files are affected. * src/ChunkChecksumValidator.cc * src/SegmentMan.cc
* 2007-01-16 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com>Tatsuhiro Tsujikawa2007-01-161-12/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To decrease CPU usage in bittorrent download, calculation results in BitfieldMan were cached and realtime fetching PeerObject was removed with WeakHandle introduced. Option values are set to the objects by setter before download begins. * src/DefaultBtRequestFactory.cc: Use messageFactory member. * src/DefaultBtRequestFactory.h (dispatcher): BtMessageDispatcherHandle -> BtMessageDispatcherWeakHandle. (messageFactory): New variable. (setBtMessageDispatcher): BtMessageDispatcherHandle -> BtMessageDispatcherWeakHandle. (setBtMessageFactory): New function. * src/DefaultBtMessageDispatcher.cc: (sendMessages): Use maxUploadSpeedLimit instead of fetching the value from Option. (checkRequestSlotAndDoNecessaryThing): Use requestTimeout instead of feating the value from Option. Use messageFactory member. * src/PeerInteractionCommand.cc (PeerInteractionCommand): Added maxDownloadSpeedLimit. Add reverse dependencies to factory object. Set maxUploadSpeedLimit and requestTimeout and messageFactory to dispatcher. Set messageFactory to receiver. Set keepAliveInterval and maxDownloadSpeedLimit and messageFactory to btInteractive. Set receiver to peerObject. Set maxDownloadSpeedLimit to this. (executeInternal): Use maxDownloadSpeedLimit member. * src/BtChokeMessage.cc (doReceivedAction): Use dispatcher, requestFactory member. (onSendComplete): Use dispatcher member. * src/PeerInteractionCommand.h (maxDownloadSpeedLimit): New variable. * src/DefaultBtMessageReceiver.h (peerConnection): PeerConnectionHandle -> PeerConnectionWeakHandle (dispatcher): BtMessageDispatcherHandle -> BtMessageDispatcherWeakHandle (messageFactory): New variable. (setPeerConnection): PeerConnectionHandle -> PeerConnectionWeakHandle (getPeerConnection): PeerConnectionHandle -> PeerConnectionWeakHandle (setDispatcher): BtMessageDispatcherHandle -> BtMessageDispatcherWeakHandle (setBtMessageFactory): New function. * src/DefaultBtInteractive.cc (initiateHandshake): Use messageFactory member. (addBitfieldMessageToQueue): Use messageFactory member. (addAllowedFastMessageToQueue): Use messageFactory member. (decideChoking): Use messageFactory member. (checkHave): Use messageFactory member. (sendKeepAlive): Use keepAliveInterval, messageFactory member. (receiveMessages): Use maxDownloadSpeedLimit member. (decideInterest): Use messageFactory member. * src/BtRequestMessage.cc (doReceivedAction): Use messageFactory, dispatcher member. (onQueued): Use dispatcher member. * src/BtPieceMessage.cc (doReceivedAction): Use dispatcher member. (send): Use peerConnection member. (onWrongPiece): Use requestFactory member. (handleChokingEvent): Use messageFactory, dispatcher member. (handleCancelSendingPieceEvent): Use messageFactory, dispatcher member. * src/BtMessageDispatcher.h (BtMessageDispatcherWeakHandle): New type definition. * src/SimpleBtMessage.cc (send): Use peerConnection member. * src/BtRejectMessage.cc (doReceivedAction): Use dispatcher member. * src/DefaultBtMessageDispatcher.h (Option.h): Removed include. (messageFactory): New variable. (option): Removed. (maxUploadSpeedLimit): New variable. (requestTimeout): New variable. (DefaultBtMessageDispatcher): Removed option. Added maxUploadSpeedLimit, requestTimeout. (setOption): Removed. (getOption): Removed. (setMaxUploadSpeedLimit): New function. (setRequestTimeout): New function. (setBtMessageFactory): New function. * src/DefaultBtInteractive.h (btMessageReceiver): BtMessageReceiverHandle -> BtMessageReceiverWeakHandle (dispatcher): BtMessageDispatcherHandle -> BtMessageReceiverWeakHandle (btRequestFactory): BtRequestFactoryHandle -> BtRequestFactoryWeakHandle (peerConnection): PeerConnectionHandle -> PeerConnectionWeakHandle (messageFactory): New variable. (option): Removed. (keepAliveInterval): New variable. (maxDownloadSpeedLimit): New variable. (DefaultBtInteractive): Added keepAliveInterval, maxDownloadSpeedLimit. (setBtMessageReceiver): BtMessageReceiverHandle -> BtMessageReceiverWeakHandle (setDispatcher): BtMessageDispatcherHandle -> BtMessageReceiverWeakHandle (setBtRequestFactory): BtRequestFactoryHandle -> BtRequestFactoryWeakHandle (setPeerConnection): PeerConnectionHandle -> PeerConnectionWeakHandle (setOption): Removed. (setKeepAliveInterval): New function. (setMaxDownloadSpeedLimit): New function. (setBtMessageFactory): New function. * src/BitfieldMan.h (cachedNumMissingBlock): New variable. (cachedNumFilteredBlock): New variable. (cachedCompletedLength): New variable. (cachedFilteredComletedLength): New variable. (cachedFilteredTotalLength): New variable. (countMissingBlockNow): New function. (countFilteredBlockNow): New function. (getFilteredTotalLengthNow): New function. (getCompletedLengthNow): New function. (getFilteredCompletedLengthNow): New function. (updateCache): New function. * src/AbstractBtMessage.h (BtMessageDispatcher.h): New include. (PeerConnection.h): New include. (BtRequestFactory.h): New include (BtMessageFactory.h): New include. (dispatcher): New variable. (messageFactory): New variable. (peerConnection: New variable. (setBtMessageDispatcher): New function. (setPeerConnection): New function. (setBtMessageFactory): New function. (setBtRequestFactory): New function. * src/DefaultBtMessageFactory.cc (setCommonProperty): Set dispatcher, requestFactory, this, peerConnection to msg. * src/BtRegistry.h (BT_MESSAGE_RECEIVER): New macro. * src/PeerConnection.h (PeerConnectionWeakHandle): New type definition. * src/BtMessageFactory.h (BtMessageFactoryWeakHandle): New type definition. * src/BitfieldMan.cc (BitfieldMan): Added cachedNumMissingBlock, cachedNumFilteredBlock, cachedCompletedLength, cachedFilteredComletedLength, cachedFilteredTotalLength. Call updateCache(). (countMissingBlock): Return cachedNumMissingBlock. (countMissingBlockNow): New function. (countBlock): Return cachedNumFilteredBlock if filterEnabled is true. (countFilteredBlockNow): New function. (setBit): Call updateCache(). (unsetBit): Call updateCache(). (setBitfield): Call updateCache(). (clearAllBit): Call updateCache(). (setAllBit): Use setBitInternal instead of setBit. Call updateCache(). (addFilter): Call updateCache(). (enableFilter): Call updateCache(). (disableFilter): Call updateCache(). (clearFilter): Call updateCache(). (getFilteredTotalLength): Return cachedFilteredTotalLength. (getFilteredTotalLengthNow): New function. (getCompletedLength): Return cachedCompletedLength. (getCompletedLengthNow): New function. (getFilteredCompletedLength): Return cachedFilteredComletedLength. (getFilteredCompletedLengthNow): New function. (updateCache): New function. * src/BtMessageReceiver.h (BtMessageReceiverWeakHandle): New type definition. * src/DefaultBtMessageReceiver.cc (receiveHandshake): Use messageFactory member. (sendHandshake): Use messageFactory member. (receiveMessage): Use messageFactory member. * src/DefaultBtMessageFactory.h (dispatcher): New variable. (requestFactory): New variable. (peerConnection): New variablle. (setBtMessageDispatcher): New function. (setBtRequestFactory): New function. (setPeerConnection): New function. * src/SharedHandle.h (RefCount): New class. (WeakHandle): New class. * src/PeerObject.h (BtMessageReceiver.h): New include. (PeerObject): Added btMessageReceiver. (btMessageReceiver): New variable. * src/Util.cc (countBit): Simplified. * src/BtCancelMessage.cc (doReceivedAction): Use dispatcher member. * src/BtRequestFactory.h (BtRequestFactoryWeakHandle): New type definition. * src/PeerStorage.h (downloadSpeed): int -> uint32_t (uploadSpeed): int -> uint32_t (sessionDownloadLength): long long int -> uint64_t (sessionUploadLength): long long int -> uint64_t
* 2006-11-05 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com>Tatsuhiro Tsujikawa2006-11-051-0/+128
To divide TorrentMan into 6 classes: BtContext, BtRuntime, PeerStorage, PieceStorage, BtAnnounce and BtProgressInfoFile * src/TrackerWatcherComand.h: Made subclass of BtContextAwareCommand. * src/SeedCheckCommand.cc: Use pieceStorage, btRuntime * src/PeerAbstractCommand.h: Made subclass of BtContextAwareCommand. * src/PeerAbstractCommand.cc: Use btRuntime. * src/BtContextAwareCommand.h: New class. * src/FileEntry.h: Added accessor methods for following variables. (path): Made private. (length): Made private. (offset): Made private. (extracted): Made private. (requested): Made private. (FileEntries): New definition. (FileEntryHandle): New definition. * src/FileEntry.cc: New file. * src/HaveEraseCommand.h: Made subclass of BtContextAwareCommand. * src/HaveEraseCommand.cc: Use btRuntime, pieceStorage. * src/PeerChokeCommand.h: Made subclass of BtContextAwareCommand. * src/PeerChokeCommand.cc: Use btRuntime, peerStorage, pieceStorage. * src/PieceStorage.h: New file. * src/PeerInteractionCommand.h: Use btContext. * src/PeerInteractionCommand.cc: Use pieceStorage, peerStorage, btRuntime. * src/DefaultBtProgressInfoFile.h: New file. * src/DefaultBtProgressInfoFile.cc: New file. * src/File.cc (Util.h): New include. (mkdirs): New function. * src/MultiDiskAdaptor.h (mkdir): New function. * src/PeerListProcessor.h (Peers): Removed. * src/PeerInteraction.h (torrentMan): Removed. (btContext): New variable. (peerStorage): New variable. (pieceStorage): New variable. (btAnnounce): New variable. (getTorrentMan): Removed. (getBtContext): New function. * src/PeerInteraction.cc: Use btContext, peerStorage, pieceStorage, btAnnounce. * src/HandshakeMessage.h (TorrentMan.h): Removed. * src/HandshakeMessage.cc: Use btContext. * src/DefaultBtAnnounce.cc: New file. * src/MultiDiskWriter.cc: Use the accessor methods of FileEntry. * src/DefaultPieceStorage.cc: New file. * src/DefaultBtContext.h: New file. * src/TorrentRequestInfo.cc: Use btContext, pieceStorage. Use the accessor methods of FileEntry. * src/CookieBox.cc: Updated to use Util::slice(). * src/PieceMessage.cc: Use btContext, pieceStorage. * src/common.h (SharedHandle.h): New include. * src/PeerMessage.cc (PeerMessage): Added btContext, peerStorage, pieceStorage. * src/TorrentAutoSaveCommand.h: Made subclass of BtContextAwareCommand. * src/DiskAdaptor.h (topDir): Removed. (getFileEntryFromPath): Changed the return type to FileEntryHandle. (setTopDir): Removed. (getTopDir): Removed. * src/BtContext.h: New file. * src/DefaultPeerStorage.h: New file. * src/PieceMessage.h (TorrentMan.h): Removed. * src/RequestMessage.h (TorrentMan.h): Removed. * src/TorrentDownloadEngine.h (uploadLength): New variable. (btContext): New variable. (btRuntime): New variable. (pieceStorage): New variable. (peerStorage): New variable. (btAnnounce): New variable. (btProgressInfoFile): New variable. (torrentMan): Removed. (setBtContext): New function. * src/TorrentDownloadEngine.cc: Use BtContext, BtRuntime, pieceStorage, peerStorage, btAnnounce, btProgressInfoFile. * src/Piece.h (toString): New function. (Pieces): New type definition. * src/Peer.h (active): New variable. (Peer): Added active. (activate): Set active to true. (deactivate): Set active to false. (isActive): New function. (Peers): New type definition. * src/DirectDiskAdaptor.cc (getFilePath): Use the accessor methods of FileEntry. * src/TorrentConsoleDownloadEngine.h (afterEachIteration): New function. * src/TorrentConsoleDownloadEngine.cc (haltRequested): New variable. (sendStatistics): Use pieceStorage, btRuntime. (afterEachIteration): New function. * src/AnnounceList: AnnounceTier->AnnounceTierHandle. * src/Directry.h (Directory): New function. (DirectoryHandle): New type definition. * src/BtProgressInfoFile.h: New file. * src/RequestMessage.cc: Use pieceStorage. * src/BtRuntime.h: New file. * src/DefaultBtContext.cc: New file. * src/BitfieldMan.h (getCompletedLength): New function(private). (getCompletedLength): New function. (getFilteredCompletedLength): New function. * src/BitfieldMan.h (getCompletedLength): New function(private). (getCompletedLength): New function. (getFilteredCompletedLength): New function. * src/MultiDiskAdaptor.cc (mkdir): New function. (openFile): Call mkdir(). (initAndOpenFile): Call mkdir(). * src/CancelMessage.h (TorrentMan.h): Removed. * src/RejectMessage.h (TorrentMan.h): Removed. * src/DownloadEngineFactory.cc (DefaultPieceStorage.h): New include. (DefaultPeerStorage.h): New include. (DefaultBtAnnounce.h): New include. (DefaultBtProgressInfoFile.h): New include. (newTorrentConsoleEngine): Rewritten. * src/ShareRatioSeedCriteria.h (torrentMan): Removed. (btContext): New variable. (peerStorage): New variable. (btRuntime): New variable. (evaluate): Use btContext, btRuntime, peerStorage. * src/AnnounceTier.h: New file. * src/BtAnnounce.h: New file. * src/BtRegistry.h: New file. * src/PeerInitiateConnectionCommand.h: Added btContext. * src/PeerConnection.h (TorrentMan.h): Removed. * src/PeerMessageFactory.cc: Use btContext, pieceStorage. * src/Util.h (slice): Added an argument. * src/Util.cc (slice): Added an argument to control whether trim is made or not. * src/PeerStorage.h: New file. * src/BtRegistry.cc: New file. * src/TrackerUpdateCommand.h: Made subclass of BtContextAwareCommand. * src/CopyDiskAdaptor.cc: Use the accessor methods of FileEntry. * src/MultiDiskWriter.h: FileEntry -> FileEntryHandle * src/PeerListenCommand.cc: Use btRuntime, peerStorage, btContext. * src/TorrentRequestInfo.h (e): Removed. (showFileEntry): Added an argument. (getDownloadEngine): Return 0. * src/DefaultBtAnnounce.h: New file. * src/TorrentAutoSaveCommand.cc: Use btRuntime, btProgressInfoFile. * src/TrackerWatcherComand.cc: Use btRuntime, btAnnounce, * src/PeerMessageFactory.h (btContext): New variable. (pieceStorage): New variable. * src/TrackerUpdateCommand.cc: Use btRuntime, peerStorage, btContext, btAnnounce. * src/DiskAdaptor.cc (DiskAdaptor): Removed topDir. (~DiskAdaptor): Removed topDir. * src/PeerListenCommand.h: Made subclass of BtContextAwareCommand. * src/SeedCheckCommand.h: Made subclass of BtContextAwareCommand. * src/File.h (mkdirs): New function. * src/DefaultPeerStorage): New file. * src/DownloadEngineFactory.h (newTorrentConsoleEngine): Use btContext. * src/BtContextAwareCommand.cc: New file. * src/PeerInitiateConnectionCommand.cc: Use btRuntime, peerStorage. * src/PeerMessage.h (btContext): New variable. (peerStorage): New variable. (pieceStorage): New variable. (setBtContext): New function. * src/Directry.cc (Directory): New function. (createDir): Do nothing if name.size() == 0. * src/AnnounceList.h (AnnounceTier): Removed. (AnnounceTiers): Removed. * src/DefaultPieceStorage.h: New file. * src/Piece.cc (toString): New function. To fix typo: * src/main.cc (showVersion): Fixed typo. To fix compile warning: * src/DelegatingPeerListProcessor.cc (canHandle): Added "return false".