/indra/llmessage/llxfer.h
https://bitbucket.org/lindenlab/viewer-beta/ · C++ Header · 117 lines · 64 code · 28 blank · 25 comment · 0 complexity · e4d5a13084797ae64d882f6404c65f2c MD5 · raw file
- /**
- * @file llxfer.h
- * @brief definition of LLXfer class for a single xfer
- *
- * $LicenseInfo:firstyear=2001&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2010, Linden Research, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
- * $/LicenseInfo$
- */
- #ifndef LL_LLXFER_H
- #define LL_LLXFER_H
- #include "message.h"
- #include "lltimer.h"
- const S32 LL_XFER_LARGE_PAYLOAD = 7680;
- typedef enum ELLXferStatus {
- e_LL_XFER_UNINITIALIZED,
- e_LL_XFER_REGISTERED, // a buffer which has been registered as available for a request
- e_LL_XFER_PENDING, // a transfer which has been requested but is waiting for a free slot
- e_LL_XFER_IN_PROGRESS,
- e_LL_XFER_COMPLETE,
- e_LL_XFER_ABORTED,
- e_LL_XFER_NONE
- } ELLXferStatus;
- class LLXfer
- {
- private:
- protected:
- S32 mChunkSize;
-
- public:
- LLXfer *mNext;
- U64 mID;
- S32 mPacketNum;
- LLHost mRemoteHost;
- S32 mXferSize;
- char *mBuffer;
- U32 mBufferLength;
- U32 mBufferStartOffset;
- BOOL mBufferContainsEOF;
- ELLXferStatus mStatus;
- BOOL mWaitingForACK;
- void (*mCallback)(void **,S32,LLExtStat);
- void **mCallbackDataHandle;
- S32 mCallbackResult;
- LLTimer ACKTimer;
- S32 mRetries;
- static const U32 XFER_FILE;
- static const U32 XFER_VFILE;
- static const U32 XFER_MEM;
- private:
- protected:
- public:
- LLXfer (S32 chunk_size);
- virtual ~LLXfer();
- void init(S32 chunk_size);
- virtual void cleanup();
- virtual S32 startSend (U64 xfer_id, const LLHost &remote_host);
- virtual void sendPacket(S32 packet_num);
- virtual void sendNextPacket();
- virtual void resendLastPacket();
- virtual S32 processEOF();
- virtual S32 startDownload();
- virtual S32 receiveData (char *datap, S32 data_size);
- virtual void abort(S32);
- virtual S32 suck(S32 start_position);
- virtual S32 flush();
-
- virtual S32 encodePacketNum(S32 packet_num, BOOL is_eof);
- virtual void setXferSize (S32 data_size);
- virtual S32 getMaxBufferSize();
- virtual std::string getFileName();
- virtual U32 getXferTypeTag();
- friend std::ostream& operator<< (std::ostream& os, LLXfer &hh);
- };
- #endif