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/**
* @file lllandmarklist.cpp
* @brief Landmark asset list class
*
* $LicenseInfo:firstyear=2002&license=viewergpl$
*
* Copyright (c) 2002-2009, 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 "llviewerprecompiledheaders.h"
#include "lllandmarklist.h"
#include "message.h"
#include "llassetstorage.h"
#include "llappviewer.h"
#include "llagent.h"
#include "llvfile.h"
#include "llviewerstats.h"
// Globals
LLLandmarkList gLandmarkList;
////////////////////////////////////////////////////////////////////////////
// LLLandmarkList
LLLandmarkList::~LLLandmarkList()
{
std::for_each(mList.begin(), mList.end(), DeletePairedPointer());
}
LLLandmark* LLLandmarkList::getAsset(const LLUUID& asset_uuid, loaded_callback_t cb)
{
LLLandmark* landmark = get_ptr_in_map(mList, asset_uuid);
if(landmark)
{
LLVector3d dummy;
if(cb && !landmark->getGlobalPos(dummy))
{
// landmark is not completely loaded yet
loaded_callback_map_t::value_type vt(asset_uuid, cb);
mLoadedCallbackMap.insert(vt);
}
return landmark;
}
else
{
if ( mBadList.find(asset_uuid) != mBadList.end() )
{
return NULL;
}
landmark_requested_list_t::iterator iter = mRequestedList.find(asset_uuid);
if (iter != mRequestedList.end())
{
const F32 rerequest_time = 30.f; // 30 seconds between requests
if (gFrameTimeSeconds - iter->second < rerequest_time)
{
return NULL;
}
}
if (cb)
{
loaded_callback_map_t::value_type vt(asset_uuid, cb);
mLoadedCallbackMap.insert(vt);
}
gAssetStorage->getAssetData(asset_uuid,
LLAssetType::AT_LANDMARK,
LLLandmarkList::processGetAssetReply,
NULL);
mRequestedList[asset_uuid] = gFrameTimeSeconds;
}
return NULL;
}
// static
void LLLandmarkList::processGetAssetReply(
LLVFS *vfs,
const LLUUID& uuid,
LLAssetType::EType type,
void* user_data,
S32 status,
LLExtStat ext_status )
{
if( status == 0 )
{
LLVFile file(vfs, uuid, type);
S32 file_length = file.getSize();
std::vector<char> buffer(file_length + 1);
file.read( (U8*)&buffer[0], file_length);
buffer[ file_length ] = 0;
LLLandmark* landmark = LLLandmark::constructFromString(&buffer[0]);
if (landmark)
{
gLandmarkList.mList[ uuid ] = landmark;
gLandmarkList.mRequestedList.erase(uuid);
LLVector3d pos;
if(!landmark->getGlobalPos(pos))
{
LLUUID region_id;
if(landmark->getRegionID(region_id))
{
LLLandmark::requestRegionHandle(
gMessageSystem,
gAgent.getRegionHost(),
region_id,
boost::bind(&LLLandmarkList::onRegionHandle, &gLandmarkList, uuid));
}
// the callback will be called when we get the region handle.
}
else
{
gLandmarkList.makeCallbacks(uuid);
}
}
}
else
{
LLViewerStats::getInstance()->incStat( LLViewerStats::ST_DOWNLOAD_FAILED );
// SJB: No use case for a notification here. Use lldebugs instead
if( LL_ERR_ASSET_REQUEST_NOT_IN_DATABASE == status )
{
LL_WARNS("Landmarks") << "Missing Landmark" << LL_ENDL;
//LLNotificationsUtil::add("LandmarkMissing");
}
else
{
LL_WARNS("Landmarks") << "Unable to load Landmark" << LL_ENDL;
//LLNotificationsUtil::add("UnableToLoadLandmark");
}
gLandmarkList.mBadList.insert(uuid);
}
}
BOOL LLLandmarkList::assetExists(const LLUUID& asset_uuid)
{
return mList.count(asset_uuid) != 0 || mBadList.count(asset_uuid) != 0;
}
void LLLandmarkList::onRegionHandle(const LLUUID& landmark_id)
{
LLLandmark* landmark = getAsset(landmark_id);
if (!landmark)
{
llwarns << "Got region handle but the landmark not found." << llendl;
return;
}
// Calculate landmark global position.
// This should succeed since the region handle is available.
LLVector3d pos;
if (!landmark->getGlobalPos(pos))
{
llwarns << "Got region handle but the landmark global position is still unknown." << llendl;
return;
}
makeCallbacks(landmark_id);
}
void LLLandmarkList::makeCallbacks(const LLUUID& landmark_id)
{
LLLandmark* landmark = getAsset(landmark_id);
if (!landmark)
{
llwarns << "Landmark to make callbacks for not found." << llendl;
}
// make all the callbacks here.
loaded_callback_map_t::iterator it;
while((it = mLoadedCallbackMap.find(landmark_id)) != mLoadedCallbackMap.end())
{
if (landmark)
(*it).second(landmark);
mLoadedCallbackMap.erase(it);
}
}
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