Fixed the bug that aria2 may send duplicate data to BitTorrent
peer if
whole message data is not sent in one send() call.
* src/BtPieceMessage.cc
* src/BtPieceMessage.h
* src/PeerConnection.cc
* src/PeerConnection.h
* src/SimpleBtMessage.cc
* src/SimpleBtMessage.h
Calculate piece hash when data is arrived if the data is arrived
in
order. This removes additional read operation for hash
calculation.
If the data is arrived in out of order, the hash is calucated
when the
piece is completed. This is the same behavior as the old
implementation.
* src/BtPieceMessage.cc
* src/DefaultBtProgressInfoFile.cc
* src/DefaultPieceStorage.cc
* src/DownloadCommand.cc
* src/DownloadCommand.h
* src/DownloadEngine.cc
* src/GrowSegment.cc
* src/GrowSegment.h
* src/Piece.cc
* src/Piece.h
* src/PiecedSegment.cc
* src/PiecedSegment.h
* src/Segment.h
* test/PieceTest.cc
Rewritten Exception class. Throw exception object, not its pointer and
catch by reference, so that remove problematic delete operator for
catched exception.
* src/Exception.cc
* src/Exception.h
* test/ExceptionTest.cc
* src/*: All files throwing/catching exception.
* test/*: All files throwing/catching exception.
Rewritten SharedHandle. Now copy constructor taking raw pointer
has
keyword explicit and SharedHandle's default constructor
initializes
its internal obj to null, old implementation initializes it
using
obj's default constructor.
To assign null, write SharedHandle<T> x(...); x.reset();
TODO: test/SharedHandleTest.cc needs more tests.
* src/SharedHandle.h
Type clarification
* src/PeerSessionResource.{h, cc}
* src/DefaultPieceStorage.{h, cc}
* src/Peer.{h, cc}
* test/PeerSessionResourceTest.cc
Use div function
* src/BtPieceMessage.cc (erasePieceOnDisk)
Create MessageDigestHelper::staticSHA1DigestInit() which uses
statically declared sha1 MessageDigestContext.
* src/BtPieceMessage.cc: Use staticSHA1DigestInit() to avoid
initialization of short-lived MessageDigestContext.
* src/MessageDigestHelper.{h, cc}
* src/main.cc
Now DownloadCommand has a reference to MessageDigestContext to avoid
the initialization of MessageDigestContext every time in validating
chunk checksum.
* src/DownloadCommand.{h, cc}
Extract the Peer class's member variables, which are only needed
after
PeerInteractionCommand, into PeerSessionResource class.
This class is instantiated in PeerInteractionCommand class's
ctor and
released in its dtor.
This will make Peer class lightweight and uses less memory for
peers
which are not connected and wait in the queue.
* src/PeerChokeCommand.cc
* src/PeerSessionResource.{h, cc}
* src/PeerInteractionCommand.cc
* src/PeerAbstractCommand.cc: Note: 0 is given to onAbort()
function.
* src/DefaultBtInteractive.cc
* src/BtPieceMessage.cc
* src/BtInterestedMessage.cc
* src/BtUnchokeMessage.cc
* src/DefaultPeerStorage.{h, cc}
* src/PeerInitiateConnectionCommand.cc
* src/ActivePeerConnectionCommand.cc
* src/BtNotInterestedMessage.cc
* src/DefaultBtMessageDispatcher.cc
* src/BtChokeMessage.cc
* src/BtRequestMessage.cc
* src/Peer.{h, cc}
* src/BtRegistry.h
* src/TrackerWatcherCommand.cc
* src/PeerReceiveHandshakeCommand.cc
* test/BtExtendedMessageTest.cc
* test/BtAllowedFastMessageTest.cc
* test/BtCancelMessageTest.cc
* test/DefaultPieceStorageTest.cc
* test/BtBitfieldMessageTest.cc
* test/BtHaveMessageTest.cc
* test/BtNotInterestedMessageTest.cc
* test/BtRequestMessageTest.cc
* test/PeerSessionResourceTest.cc
* test/DefaultBtMessageDispatcherTest.cc
* test/PeerTest.cc
* test/BtInterestedMessageTest.cc
* test/BtRejectMessageTest.cc
* test/BtChokeMessageTest.cc
* test/DefaultPeerStorageTest.cc
* test/BtHaveNoneMessageTest.cc
* test/BtHaveAllMessageTest.cc
* test/DefaultExtensionMessageFactoryTest.cc
* test/BtUnchokeMessageTest.cc
* test/DefaultBtMessageFactoryTest.cc
* test/HandshakeExtensionMessageTest.cc
* test/UTPexExtensionMessageTest.cc
* test/DefaultBtRequestFactoryTest.cc
* test/BtPieceMessageTest.cc
Removed typedef PeerStats.
* src/PeerStat.h
* src/SegmentMan.cc
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.
Fixed the bug that prevents cookies from being sent to the
server
if the domain of cookie is FQDN and starts with ".".
* src/Cookie.cc (match)
To add the ability to change peer id.
* src/DefaultBtContext.h
(_peerIdPrefix): New variable
(setPeerIdPrefix): New function.
* src/torrentRequestInfo.cc
(execute): Set the option value of PREF_PEER_ID_PREFIX to
DefaultBtContext.
* src/main.cc (main): Added peer-id-prefix command-line option.
The usage message is not added yet.
* src/DefaultBtContext.cc
(generatePeerId): Use _peerIdPrefix.
* src/prefs.h (PREF_PEER_ID_PREFIX): New definition.
To add chunk checksum validation:
* src/MetalinkEntry.h
(MetalinkChunkChecksum.h): New include.
(chunkChecksum): New variable.
* src/Request.h
(method): New variable.
(setMethod): New function.
(getMethod): New function.
(METHOD_GET): New static constant.
(METHOD_HEAD): New static constant.
* src/Xml2MetalinkProcessor.h
(getPieceHash): New function.
* src/PieceStorage.h
(markAllPiecesDone): New function.
(checkIntegrity): New function.
* src/FileAllocator.h
(NullFileAllocationMonitor.h): New include.
(FileAllocator): Initialize fileAllocationMonitor with new
NullFileAllocationMonitor().
* src/MultiDiskAdaptor.h
(messageDigest.h): Remove include.
(ctx): Removed.
(hashUpdate): Added ctx.
(MultiDiskAdaptor): Removed ctx.
(sha1Sum): Renamed as messageDigest.
(messageDigest): New function.
* src/UrlRequestInfo.h
(HeadResult): New class.
(digestAlgo): New variable.
(chunkChecksumLength): New variable.
(chunkChecksums): New variable.
(getHeadResult): New function.
(UrlRequestInfo): Added digestAlgo, chunkChecksumLength.
(setDigestAlgo): New function.
(setChunkChecksumLength): New function.
(setChunkChecksums): New function.
* src/DefaultPieceStorage.cc
(DiskAdaptorWriter.h): New include.
(ChunkChecksumValidator.h): New include.
(markAllPiecesDone): New function.
(checkIntegrity): New function.
* src/DefaultBtContext.h
(getPieceHashes): New function.
* src/TorrentRequestInfo.cc
(execute): Try to validate chunk checksum if file already exists
and
.aria2 file doesn't there and user allows aria2 to overwrite it.
* src/messageDigest.h
(~MessageDigestContext): Added digestFree().
* src/MetalinkRequestInfo.cc
(execute): Set digestAlgo, chunkChecksum, chunkChecksums to
reqInfo.
* src/DiskAdaptor.h
(messageDigest.h): New include.
(sha1Sum): Renamed as messageDigest.
(messageDigest): New function.
* src/DownloadCommand.h
(PeerStat.h): New include.
(maxDownloadSpeedLimit): New variable.
(startupIdleTime): New variable.
(lowestDownloadSpeedLimit): New variable.
(peerStat): New variable.
(setMaxDownloadSpeedLimit): New function.
(setStartupIdleTime): New function.
(setLowestDownloadSPeedLimit): New function.
* src/BtContext.h
(getPieceHashes): New function.
* src/main.cc
(main): Set PREF_REALTIME_CHUNK_CHECKSUM and
PREF_CHECK_INTEGRITY
option to true for testing purpose.
* src/BtPieceMessage.cc
(checkPieceHash): Use messageDigest
* src/DownloadEngine.cc
(SetDescriptor): Removed.
(AccumulateActiveCommand): Removed.
(waitData): Rewritten.
(updateFdSet): Rewritten.
* src/MultiDiskAdaptor.cc
(hashUpdate): Added ctx.
(sha1Sum): Renamed as messageDigest.
(messageDigest): New function.
* src/BitfieldMan.h
(isBitRangeSet): New function.
(unsetBitRange): New function.
* src/ByteArrayDiskWriter.h
(sha1Sum): Renamed as messageDigest.
(messageDigest): New function.
* src/ConsoleDownloadEngine.cc
(calculateStatistics): If nspeed < 0 then set nspeed to 0.
* src/DiskWriter.h
(messageDigest.h): New include.
(sha1Sum): Renamed as messageDigest.
(messageDigest): New function.
* src/ChunkChecksumValidator.h: New class.
* src/DiskAdaptorWriter.h: New class.
* src/prefs.h
(PREF_REALTIME_CHUNK_CHECKSUM): New definition.
(PREF_CHECK_INTEGRITY): New definition.
* src/HttpResponseCommand.cc
(handleDefaultEncoding): Added method "HEAD" handling.
Removed the call to
e->segmentMan->shouldCancelDownloadForSafety().
(handleOtherEncoding):
Added the call to
e->segmentMan->shouldCancelDownloadForSafety().
(createHttpDownloadCommand): Set maxDownloadSpeedLimit,
startupIdleTime, lowestDownloadSpeedLimit to command.
* src/SegmentMan.h
(getSegmentEntryByIndex): New function.
(getSegmentEntryByCuid): New function.
(getSegmentEntryIteratorByCuid): New function.
(diskWriter): DiskWriter -> DiskWriterHandle
(pieceHashes): New variable.
(chunkHashLength): New variable.
(digestAlgo): New variable.
(FindPeerStat): Removed.
(getPeerStat): Rewritten.
(markAllPiecesDone): New function.
(checkIntegrity): New function.
(tryChunkChecksumValidation): New function.
(isChunkChecksumValidationReady): New function.
* src/BitfieldMan.cc
(BitfieldMan): Initialized bitfieldLength, blocks to 0.
(BitfieldMan): Initialized blockLength, totalLength,
bitfieldLength,
blocks to 0.
(isBitRangeSet): New function.
(unsetBitRange): New function.
* src/FtpNegotiateCommand.cc
(executeInternal): Set maxDownloadSpeedLimit,
startupIdleTime, lowestDownloadSpeedLimit to command.
(recvSize): Added method "HEAD" handling.
Removed the call to
e->segmentMan->shouldCancelDownloadForSafety().
* src/AbstractSingleDiskAdaptor.cc
(sha1Sum): Renamed as messageDigest.
(messageDigest): New function.
* src/AbstractSingleDiskAdaptor.h
(sha1Sum): Renamed as messageDigest.
(messageDigest): New function.
* src/Util.h
(indexRange): New function.
* src/MetalinkEntry.cc
(MetalinkEntry): Initialized chunkChecksum to 0.
* src/ShaVisitor.cc
(~ShaVisitor): Removed the call to ctx.digestFree().
* src/SegmentMan.cc
(ChunkChecksumValidator.h): New include.
(SegmentMan): Initialized chunkHashLength to 0. Initialized
digestAlgo
to DIGEST_ALGO_SHA1.
(~SegmentMan): Removed diskWriter.
(FindSegmentEntryByIndex): Removed.
(FindSegmentEntryByCuid): Removed.
(checkoutSegment): Rewritten.
(findSlowerSegmentEntry): Rewritten.
(getSegment): Rewritten.
(updateSegment): Rewritten.
(completeSegment): Rewritten.
(markAllPiecesDone): New function.
(checkIntegrity): New function.
(isChunkChecksumValidationReady): New function.
(tryChunkChecksumValidation): New function.
* src/Xml2MetalinkProcessor.cc
(getEntry): Get size and set it to entry.
Get chunk checksum and set it to entry.
(getPieceHash): New function.
* src/Util.cc
(sha1Sum): Removed ctx.digestFree()
(fileChecksum): Removed ctx.digestFree()
(indexRange): New function.
* src/Request.cc
(METHOD_GET): New variable.
(METHOD_HEAD): New variable.
(Request): Added method.
* src/UrlRequestInfo.cc
(FatalException.h): New include.
(message.h): New include.
(operator<<): Added operator<< for class HeadResult.
(getHeadResult): New function.
(execute): Get filename and size in separate download engine.
* src/ChunkChecksumValidator.cc: New class.
* src/DownloadCommand.cc:
(DownloadCommand): Added peerStat.
(executeInternal): Use maxDownloadSpeedLimit member instead of
getting
the value from Option.
The buffer size is now 16KB.
Use peerStat member instead of getting it from SegmentMan.
Use startupIdleTime member instead of gettingit from Option.
Added chunk checksum validation.
* src/AbstractDiskWriter.cc
(AbstractDiskWriter): Removed ctx.
(~AbstractDiskWriter): Removed ctx.digestFree()
(writeDataInternal): Returns the return value of write.
(readDataInternal): Returns the return value of read.
(sha1Sum): Renamed as messageDigest
(messageDigest): New function.
* src/AbstractDiwkWriter.h
(messageDigest.h): Removed include.
(ctx): Removed.
(sha1Sum): Renamed as messageDigest
(messageDigest): New function.
* src/DefaultPieceStorage.h
(markAllPiecesDone): New function.
(checkIntegrity): New function.
* src/NullFileAllocationMonitor.h: New class.
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
Rewritten a portion of bittorrent implementation:
* src/BtMessageValidator.h: New class.
* src/BtBitfieldMessageValidator.h: New class.
* src/BtHandshakeMessageValidator.h: New class.
* src/BtRequestMessageValidator.h: New class.
* src/BtSuggestPieceMessageValidator.h: New class.
* src/BtAllowedFastMessageValidator.h: New class.
* src/BtRejectMessageValidator.h: New class.
* src/BtCancelMessageValidator.h: New class.
* src/BtPieceMessageValidator.h: New class.
* src/BtHaveMessageValidator.h: New class.
* src/BtEventListener.h: New class.
* src/AbstractBtEventListener.h: New class.
* src/BtEvent.h: New class.
* src/BtChokingEvent.h: New class.
* src/BtChokedEvent.h: New class.
* src/BtCancelSendingPieceEvent.h: New class.
* src/BtAbortOutstandingRequestEvent.h: New class.
* src/Randomizer.h: New class.
* src/SimpleRandomizer.h: New class.
* src/BtMessage.h: New class.
* src/AbstractBtMessage.h: New class.
* src/SimpleBtMessage.h: New class.
* src/BtHaveMessage.h: New class.
* src/BtInterestedMessage.h: New class.
* src/BtAllowedFastMessage.h: New class.
* src/BtUnchokeMessage.h: New class.
* src/BtCancelMessage.h: New class.
* src/BtNotInterestedMessage.h: New class.
* src/BtChokeMessage.h: New class.
* src/BtHaveNoneMessage.h: New class.
* src/BtHandshakeMessage.h: New class.
* src/BtSuggestPieceMessage.h: New class.
* src/BtHaveMessage.h: New class.
* src/BtPieceMessage.h: New class.
* src/BtHaveAllMessage.h: New class.
* src/BtKeepAliveMessage.h: New class.
* src/BtPortMessage.h: New class.
* src/BtRejectMessage.h: New class.
* src/BtBitfieldMessage.h: New class.
* src/BtRequestMessage.h: New class.
* src/DefaultBtRequestFactory.h: New class.
* src/DefaultBtMessageReceiver.h: New class.
* src/BtInteractive.h: New class.
* src/BtMessageDispatcher.h: New class.
* src/DefaultBtMessageDispatcher.h: New class.
* src/DefaultBtInteractive.h: New class.
* src/BitfieldManFactory.h: New class.
* src/HandleRegistry.h: New class.
* src/BtMessageFactory.h: New class.
* src/BtMessageReceiver.h: New class.
* src/DefaultBtMessageFactory.h: New class.
* src/PeerObject.h: New class.
* src/BtRequestFactory.h: New class.
Tatsuhiro Tsujikawa