diff options
Diffstat (limited to 'indra/newview/llviewerassetstorage.cpp')
| -rw-r--r-- | indra/newview/llviewerassetstorage.cpp | 165 |
1 files changed, 144 insertions, 21 deletions
diff --git a/indra/newview/llviewerassetstorage.cpp b/indra/newview/llviewerassetstorage.cpp index c3a6b7111b..36c8b42a52 100644 --- a/indra/newview/llviewerassetstorage.cpp +++ b/indra/newview/llviewerassetstorage.cpp @@ -2,31 +2,25 @@ * @file llviewerassetstorage.cpp * @brief Subclass capable of loading asset data to/from an external source. * - * $LicenseInfo:firstyear=2003&license=viewergpl$ - * - * Copyright (c) 2003-2009, Linden Research, Inc. - * + * $LicenseInfo:firstyear=2003&license=viewerlgpl$ * 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 + * Copyright (C) 2010, Linden Research, Inc. * - * 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 + * 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. * - * 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. + * 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. * - * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO - * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, - * COMPLETENESS OR PERFORMANCE. + * 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 * $/LicenseInfo$ */ @@ -39,6 +33,61 @@ #include "message.h" #include "llagent.h" +#include "lltransfersourceasset.h" +#include "lltransfertargetvfile.h" +#include "llviewerassetstats.h" + +///---------------------------------------------------------------------------- +/// LLViewerAssetRequest +///---------------------------------------------------------------------------- + +/** + * @brief Local class to encapsulate asset fetch requests with a timestamp. + * + * Derived from the common LLAssetRequest class, this is currently used + * only for fetch/get operations and its only function is to wrap remote + * asset fetch requests so that they can be timed. + */ +class LLViewerAssetRequest : public LLAssetRequest +{ +public: + LLViewerAssetRequest(const LLUUID &uuid, const LLAssetType::EType type) + : LLAssetRequest(uuid, type), + mMetricsStartTime(0) + { + } + + LLViewerAssetRequest & operator=(const LLViewerAssetRequest &); // Not defined + // Default assignment operator valid + + // virtual + ~LLViewerAssetRequest() + { + recordMetrics(); + } + +protected: + void recordMetrics() + { + if (mMetricsStartTime) + { + // Okay, it appears this request was used for useful things. Record + // the expected dequeue and duration of request processing. + LLViewerAssetStatsFF::record_dequeue_main(mType, false, false); + LLViewerAssetStatsFF::record_response_main(mType, false, false, + (LLViewerAssetStatsFF::get_timestamp() + - mMetricsStartTime)); + mMetricsStartTime = 0; + } + } + +public: + LLViewerAssetStats::duration_t mMetricsStartTime; +}; + +///---------------------------------------------------------------------------- +/// LLViewerAssetStorage +///---------------------------------------------------------------------------- LLViewerAssetStorage::LLViewerAssetStorage(LLMessageSystem *msg, LLXferManager *xfer, LLVFS *vfs, LLVFS *static_vfs, @@ -264,3 +313,77 @@ void LLViewerAssetStorage::storeAssetData( } } } + + +/** + * @brief Allocate and queue an asset fetch request for the viewer + * + * This is a nearly-verbatim copy of the base class's implementation + * with the following changes: + * - Use a locally-derived request class + * - Start timing for metrics when request is queued + * + * This is an unfortunate implementation choice but it's forced by + * current conditions. A refactoring that might clean up the layers + * of responsibility or introduce factories or more virtualization + * of methods would enable a more attractive solution. + * + * If LLAssetStorage::_queueDataRequest changes, this must change + * as well. + */ + +// virtual +void LLViewerAssetStorage::_queueDataRequest( + const LLUUID& uuid, + LLAssetType::EType atype, + LLGetAssetCallback callback, + void *user_data, + BOOL duplicate, + BOOL is_priority) +{ + if (mUpstreamHost.isOk()) + { + // stash the callback info so we can find it after we get the response message + LLViewerAssetRequest *req = new LLViewerAssetRequest(uuid, atype); + req->mDownCallback = callback; + req->mUserData = user_data; + req->mIsPriority = is_priority; + if (!duplicate) + { + // Only collect metrics for non-duplicate requests. Others + // are piggy-backing and will artificially lower averages. + req->mMetricsStartTime = LLViewerAssetStatsFF::get_timestamp(); + } + + mPendingDownloads.push_back(req); + + if (!duplicate) + { + // send request message to our upstream data provider + // Create a new asset transfer. + LLTransferSourceParamsAsset spa; + spa.setAsset(uuid, atype); + + // Set our destination file, and the completion callback. + LLTransferTargetParamsVFile tpvf; + tpvf.setAsset(uuid, atype); + tpvf.setCallback(downloadCompleteCallback, req); + + llinfos << "Starting transfer for " << uuid << llendl; + LLTransferTargetChannel *ttcp = gTransferManager.getTargetChannel(mUpstreamHost, LLTCT_ASSET); + ttcp->requestTransfer(spa, tpvf, 100.f + (is_priority ? 1.f : 0.f)); + + LLViewerAssetStatsFF::record_enqueue_main(atype, false, false); + } + } + else + { + // uh-oh, we shouldn't have gotten here + llwarns << "Attempt to move asset data request upstream w/o valid upstream provider" << llendl; + if (callback) + { + callback(mVFS, uuid, atype, user_data, LL_ERR_CIRCUIT_GONE, LL_EXSTAT_NO_UPSTREAM); + } + } +} + |