lltransfertargetvfile.cpp
上传用户:king477883
上传日期:2021-03-01
资源大小:9553k
文件大小:6k
源码类别:
游戏引擎
开发平台:
C++ Builder
- /**
- * @file lltransfertargetvfile.cpp
- * @brief Transfer system for receiving a vfile.
- *
- * $LicenseInfo:firstyear=2006&license=viewergpl$
- *
- * Copyright (c) 2006-2010, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
- *
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
- #include "linden_common.h"
- #include "lltransfertargetvfile.h"
- #include "lldatapacker.h"
- #include "llerror.h"
- #include "llvfile.h"
- //static
- void LLTransferTargetVFile::updateQueue(bool shutdown)
- {
- }
- LLTransferTargetParamsVFile::LLTransferTargetParamsVFile() :
- LLTransferTargetParams(LLTTT_VFILE),
- mAssetType(LLAssetType::AT_NONE),
- mCompleteCallback(NULL),
- mUserDatap(NULL),
- mErrCode(0)
- {
- }
- void LLTransferTargetParamsVFile::setAsset(
- const LLUUID& asset_id,
- LLAssetType::EType asset_type)
- {
- mAssetID = asset_id;
- mAssetType = asset_type;
- }
- void LLTransferTargetParamsVFile::setCallback(LLTTVFCompleteCallback cb, void *user_data)
- {
- mCompleteCallback = cb;
- mUserDatap = user_data;
- }
- bool LLTransferTargetParamsVFile::unpackParams(LLDataPacker& dp)
- {
- // if the source provided a new key, assign that to the asset id.
- if(dp.hasNext())
- {
- LLUUID dummy_id;
- dp.unpackUUID(dummy_id, "AgentID");
- dp.unpackUUID(dummy_id, "SessionID");
- dp.unpackUUID(dummy_id, "OwnerID");
- dp.unpackUUID(dummy_id, "TaskID");
- dp.unpackUUID(dummy_id, "ItemID");
- dp.unpackUUID(mAssetID, "AssetID");
- S32 dummy_type;
- dp.unpackS32(dummy_type, "AssetType");
- }
- // if we never got an asset id, this will always fail.
- if(mAssetID.isNull())
- {
- return false;
- }
- return true;
- }
- LLTransferTargetVFile::LLTransferTargetVFile(
- const LLUUID& uuid,
- LLTransferSourceType src_type) :
- LLTransferTarget(LLTTT_VFILE, uuid, src_type),
- mNeedsCreate(TRUE)
- {
- mTempID.generate();
- }
- LLTransferTargetVFile::~LLTransferTargetVFile()
- {
- }
- // virtual
- bool LLTransferTargetVFile::unpackParams(LLDataPacker& dp)
- {
- if(LLTST_SIM_INV_ITEM == mSourceType)
- {
- return mParams.unpackParams(dp);
- }
- return true;
- }
- void LLTransferTargetVFile::applyParams(const LLTransferTargetParams ¶ms)
- {
- if (params.getType() != mType)
- {
- llwarns << "Target parameter type doesn't match!" << llendl;
- return;
- }
- mParams = (LLTransferTargetParamsVFile &)params;
- }
- LLTSCode LLTransferTargetVFile::dataCallback(const S32 packet_id, U8 *in_datap, const S32 in_size)
- {
- //llinfos << "LLTransferTargetFile::dataCallback" << llendl;
- //llinfos << "Packet: " << packet_id << llendl;
- LLVFile vf(gAssetStorage->mVFS, mTempID, mParams.getAssetType(), LLVFile::APPEND);
- if (mNeedsCreate)
- {
- vf.setMaxSize(mSize);
- mNeedsCreate = FALSE;
- }
- if (!in_size)
- {
- return LLTS_OK;
- }
- if (!vf.write(in_datap, in_size))
- {
- llwarns << "Failure in LLTransferTargetVFile::dataCallback!" << llendl;
- return LLTS_ERROR;
- }
- return LLTS_OK;
- }
- void LLTransferTargetVFile::completionCallback(const LLTSCode status)
- {
- //llinfos << "LLTransferTargetVFile::completionCallback" << llendl;
- if (!gAssetStorage)
- {
- llwarns << "Aborting vfile transfer after asset storage shut down!" << llendl;
- return;
- }
- // Still need to gracefully handle error conditions.
- S32 err_code = 0;
- switch (status)
- {
- case LLTS_DONE:
- if (!mNeedsCreate)
- {
- LLVFile file(gAssetStorage->mVFS, mTempID, mParams.getAssetType(), LLVFile::WRITE);
- if (!file.rename(mParams.getAssetID(), mParams.getAssetType()))
- {
- llerrs << "LLTransferTargetVFile: rename failed" << llendl;
- }
- }
- err_code = LL_ERR_NOERR;
- lldebugs << "LLTransferTargetVFile::completionCallback for "
- << mParams.getAssetID() << ","
- << LLAssetType::lookup(mParams.getAssetType())
- << " with temp id " << mTempID << llendl;
- break;
- case LLTS_ERROR:
- case LLTS_ABORT:
- case LLTS_UNKNOWN_SOURCE:
- default:
- {
- // We're aborting this transfer, we don't want to keep this file.
- llwarns << "Aborting vfile transfer for " << mParams.getAssetID() << llendl;
- LLVFile vf(gAssetStorage->mVFS, mTempID, mParams.getAssetType(), LLVFile::APPEND);
- vf.remove();
- }
- break;
- }
- switch (status)
- {
- case LLTS_DONE:
- err_code = LL_ERR_NOERR;
- break;
- case LLTS_UNKNOWN_SOURCE:
- err_code = LL_ERR_ASSET_REQUEST_NOT_IN_DATABASE;
- break;
- case LLTS_INSUFFICIENT_PERMISSIONS:
- err_code = LL_ERR_INSUFFICIENT_PERMISSIONS;
- break;
- case LLTS_ERROR:
- case LLTS_ABORT:
- default:
- err_code = LL_ERR_ASSET_REQUEST_FAILED;
- break;
- }
- if (mParams.mCompleteCallback)
- {
- mParams.mCompleteCallback(err_code,
- mParams.getAssetID(),
- mParams.getAssetType(),
- mParams.mUserDatap,
- LL_EXSTAT_NONE);
- }
- }