219 lines
4.8 KiB
C++
219 lines
4.8 KiB
C++
/**
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* @file llxfer_mem.cpp
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* @brief implementation of LLXfer_Mem class for a single xfer
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*
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* $LicenseInfo:firstyear=2001&license=viewerlgpl$
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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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#include "linden_common.h"
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#include "llxfer_mem.h"
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#include "lluuid.h"
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#include "llerror.h"
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#include "llmath.h"
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///////////////////////////////////////////////////////////
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LLXfer_Mem::LLXfer_Mem ()
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: LLXfer(-1)
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{
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init();
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}
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///////////////////////////////////////////////////////////
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LLXfer_Mem::~LLXfer_Mem ()
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{
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cleanup();
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}
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///////////////////////////////////////////////////////////
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void LLXfer_Mem::init ()
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{
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mRemoteFilename.clear();
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mRemotePath = LL_PATH_NONE;
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mDeleteRemoteOnCompletion = FALSE;
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}
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///////////////////////////////////////////////////////////
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void LLXfer_Mem::cleanup ()
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{
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LLXfer::cleanup();
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}
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///////////////////////////////////////////////////////////
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void LLXfer_Mem::setXferSize (S32 xfer_size)
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{
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mXferSize = xfer_size;
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delete[] mBuffer;
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mBuffer = new char[xfer_size];
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mBufferLength = 0;
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mBufferStartOffset = 0;
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mBufferContainsEOF = TRUE;
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// cout << "starting transfer of size: " << xfer_size << endl;
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}
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///////////////////////////////////////////////////////////
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U64 LLXfer_Mem::registerXfer(U64 xfer_id, const void *datap, const S32 length)
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{
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mID = xfer_id;
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if (datap)
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{
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setXferSize(length);
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if (mBuffer)
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{
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memcpy(mBuffer,datap,length); /* Flawfinder : ignore */
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mBufferLength = length;
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}
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else
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{
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xfer_id = 0;
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}
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}
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mStatus = e_LL_XFER_REGISTERED;
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return (xfer_id);
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}
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S32 LLXfer_Mem::startSend (U64 xfer_id, const LLHost &remote_host)
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{
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S32 retval = LL_ERR_NOERR; // presume success
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if (mXferSize <= 0)
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{
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return LL_ERR_FILE_EMPTY;
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}
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mRemoteHost = remote_host;
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mID = xfer_id;
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mPacketNum = -1;
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// cout << "Sending file: " << getFileName() << endl;
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mStatus = e_LL_XFER_PENDING;
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return (retval);
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}
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///////////////////////////////////////////////////////////
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S32 LLXfer_Mem::processEOF()
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{
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S32 retval = 0;
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mStatus = e_LL_XFER_COMPLETE;
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llinfos << "xfer complete: " << getFileName() << llendl;
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if (mCallback)
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{
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mCallback((void *)mBuffer,mBufferLength,mCallbackDataHandle,mCallbackResult,LL_EXSTAT_NONE);
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}
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return(retval);
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}
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///////////////////////////////////////////////////////////
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S32 LLXfer_Mem::initializeRequest(U64 xfer_id,
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const std::string& remote_filename,
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ELLPath remote_path,
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const LLHost& remote_host,
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BOOL delete_remote_on_completion,
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void (*callback)(void*,S32,void**,S32,LLExtStat),
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void** user_data)
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{
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S32 retval = 0; // presume success
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mRemoteHost = remote_host;
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// create a temp filename string using a GUID
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mID = xfer_id;
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mCallback = callback;
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mCallbackDataHandle = user_data;
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mCallbackResult = LL_ERR_NOERR;
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mRemoteFilename = remote_filename;
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mRemotePath = remote_path;
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mDeleteRemoteOnCompletion = delete_remote_on_completion;
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llinfos << "Requesting file: " << remote_filename << llendl;
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delete [] mBuffer;
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mBuffer = NULL;
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mBufferLength = 0;
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mPacketNum = 0;
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mStatus = e_LL_XFER_PENDING;
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return retval;
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}
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//////////////////////////////////////////////////////////
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S32 LLXfer_Mem::startDownload()
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{
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S32 retval = 0; // presume success
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gMessageSystem->newMessageFast(_PREHASH_RequestXfer);
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gMessageSystem->nextBlockFast(_PREHASH_XferID);
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gMessageSystem->addU64Fast(_PREHASH_ID, mID);
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gMessageSystem->addStringFast(_PREHASH_Filename, mRemoteFilename);
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gMessageSystem->addU8("FilePath", (U8) mRemotePath);
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gMessageSystem->addBOOL("DeleteOnCompletion", mDeleteRemoteOnCompletion);
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gMessageSystem->addBOOL("UseBigPackets", BOOL(mChunkSize == LL_XFER_LARGE_PAYLOAD));
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gMessageSystem->addUUIDFast(_PREHASH_VFileID, LLUUID::null);
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gMessageSystem->addS16Fast(_PREHASH_VFileType, -1);
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gMessageSystem->sendReliable(mRemoteHost);
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mStatus = e_LL_XFER_IN_PROGRESS;
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return (retval);
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}
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//////////////////////////////////////////////////////////
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U32 LLXfer_Mem::getXferTypeTag()
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{
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return LLXfer::XFER_MEM;
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}
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