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-rw-r--r--indra/newview/llinventoryobserver.cpp798
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diff --git a/indra/newview/llinventoryobserver.cpp b/indra/newview/llinventoryobserver.cpp
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+/**
+ * @file llinventoryobserver.cpp
+ * @brief Implementation of the inventory observers used to track agent inventory.
+ *
+ * $LicenseInfo:firstyear=2002&license=viewerlgpl$
+ * 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
+ * $/LicenseInfo$
+ */
+
+#include "llviewerprecompiledheaders.h"
+
+#include "llinventoryobserver.h"
+
+#include "llassetstorage.h"
+#include "llcrc.h"
+#include "lldir.h"
+#include "llsys.h"
+#include "llxfermanager.h"
+#include "message.h"
+
+#include "llagent.h"
+#include "llagentwearables.h"
+#include "llfloater.h"
+#include "llfocusmgr.h"
+#include "llinventorybridge.h"
+#include "llinventoryfunctions.h"
+#include "llinventorymodel.h"
+#include "llviewermessage.h"
+#include "llviewerwindow.h"
+#include "llviewerregion.h"
+#include "llappviewer.h"
+#include "lldbstrings.h"
+#include "llviewerstats.h"
+#include "llnotificationsutil.h"
+#include "llcallbacklist.h"
+#include "llpreview.h"
+#include "llviewercontrol.h"
+#include "llvoavatarself.h"
+#include "llsdutil.h"
+#include <deque>
+
+const F32 LLInventoryFetchItemsObserver::FETCH_TIMER_EXPIRY = 60.0f;
+
+
+LLInventoryObserver::LLInventoryObserver()
+{
+}
+
+// virtual
+LLInventoryObserver::~LLInventoryObserver()
+{
+}
+
+LLInventoryFetchObserver::LLInventoryFetchObserver(const LLUUID& id)
+{
+ mIDs.clear();
+ if (id != LLUUID::null)
+ {
+ setFetchID(id);
+ }
+}
+
+LLInventoryFetchObserver::LLInventoryFetchObserver(const uuid_vec_t& ids)
+{
+ setFetchIDs(ids);
+}
+
+BOOL LLInventoryFetchObserver::isFinished() const
+{
+ return mIncomplete.empty();
+}
+
+void LLInventoryFetchObserver::setFetchIDs(const uuid_vec_t& ids)
+{
+ mIDs = ids;
+}
+void LLInventoryFetchObserver::setFetchID(const LLUUID& id)
+{
+ mIDs.clear();
+ mIDs.push_back(id);
+}
+
+
+void LLInventoryCompletionObserver::changed(U32 mask)
+{
+ // scan through the incomplete items and move or erase them as
+ // appropriate.
+ if (!mIncomplete.empty())
+ {
+ for (uuid_vec_t::iterator it = mIncomplete.begin(); it < mIncomplete.end(); )
+ {
+ const LLViewerInventoryItem* item = gInventory.getItem(*it);
+ if (!item)
+ {
+ it = mIncomplete.erase(it);
+ continue;
+ }
+ if (item->isFinished())
+ {
+ mComplete.push_back(*it);
+ it = mIncomplete.erase(it);
+ continue;
+ }
+ ++it;
+ }
+ if (mIncomplete.empty())
+ {
+ done();
+ }
+ }
+}
+
+void LLInventoryCompletionObserver::watchItem(const LLUUID& id)
+{
+ if (id.notNull())
+ {
+ mIncomplete.push_back(id);
+ }
+}
+
+LLInventoryFetchItemsObserver::LLInventoryFetchItemsObserver(const LLUUID& item_id) :
+ LLInventoryFetchObserver(item_id)
+{
+ mIDs.clear();
+ mIDs.push_back(item_id);
+}
+
+LLInventoryFetchItemsObserver::LLInventoryFetchItemsObserver(const uuid_vec_t& item_ids) :
+ LLInventoryFetchObserver(item_ids)
+{
+}
+
+void LLInventoryFetchItemsObserver::changed(U32 mask)
+{
+ lldebugs << this << " remaining incomplete " << mIncomplete.size()
+ << " complete " << mComplete.size()
+ << " wait period " << mFetchingPeriod.getRemainingTimeF32()
+ << llendl;
+
+ // scan through the incomplete items and move or erase them as
+ // appropriate.
+ if (!mIncomplete.empty())
+ {
+
+ // Have we exceeded max wait time?
+ bool timeout_expired = mFetchingPeriod.hasExpired();
+
+ for (uuid_vec_t::iterator it = mIncomplete.begin(); it < mIncomplete.end(); )
+ {
+ const LLUUID& item_id = (*it);
+ LLViewerInventoryItem* item = gInventory.getItem(item_id);
+ if (item && item->isFinished())
+ {
+ mComplete.push_back(item_id);
+ it = mIncomplete.erase(it);
+ }
+ else
+ {
+ if (timeout_expired)
+ {
+ // Just concede that this item hasn't arrived in reasonable time and continue on.
+ llwarns << "Fetcher timed out when fetching inventory item UUID: " << item_id << LL_ENDL;
+ it = mIncomplete.erase(it);
+ }
+ else
+ {
+ // Keep trying.
+ ++it;
+ }
+ }
+ }
+
+ }
+
+ if (mIncomplete.empty())
+ {
+ lldebugs << this << " done at remaining incomplete "
+ << mIncomplete.size() << " complete " << mComplete.size() << llendl;
+ done();
+ }
+ //llinfos << "LLInventoryFetchItemsObserver::changed() mComplete size " << mComplete.size() << llendl;
+ //llinfos << "LLInventoryFetchItemsObserver::changed() mIncomplete size " << mIncomplete.size() << llendl;
+}
+
+void fetch_items_from_llsd(const LLSD& items_llsd)
+{
+ if (!items_llsd.size() || gDisconnected) return;
+ LLSD body;
+ body[0]["cap_name"] = "FetchInventory";
+ body[1]["cap_name"] = "FetchLib";
+ for (S32 i=0; i<items_llsd.size();i++)
+ {
+ if (items_llsd[i]["owner_id"].asString() == gAgent.getID().asString())
+ {
+ body[0]["items"].append(items_llsd[i]);
+ continue;
+ }
+ if (items_llsd[i]["owner_id"].asString() == ALEXANDRIA_LINDEN_ID.asString())
+ {
+ body[1]["items"].append(items_llsd[i]);
+ continue;
+ }
+ }
+
+ for (S32 i=0; i<body.size(); i++)
+ {
+ if(!gAgent.getRegion())
+ {
+ llwarns<<"Agent's region is null"<<llendl;
+ break;
+ }
+ if (0 >= body[i].size()) continue;
+ std::string url = gAgent.getRegion()->getCapability(body[i]["cap_name"].asString());
+
+ if (!url.empty())
+ {
+ body[i]["agent_id"] = gAgent.getID();
+ LLHTTPClient::post(url, body[i], new LLInventoryModel::fetchInventoryResponder(body[i]));
+ break;
+ }
+
+ LLMessageSystem* msg = gMessageSystem;
+ BOOL start_new_message = TRUE;
+ for (S32 j=0; j<body[i]["items"].size(); j++)
+ {
+ LLSD item_entry = body[i]["items"][j];
+ if (start_new_message)
+ {
+ start_new_message = FALSE;
+ msg->newMessageFast(_PREHASH_FetchInventory);
+ msg->nextBlockFast(_PREHASH_AgentData);
+ msg->addUUIDFast(_PREHASH_AgentID, gAgent.getID());
+ msg->addUUIDFast(_PREHASH_SessionID, gAgent.getSessionID());
+ }
+ msg->nextBlockFast(_PREHASH_InventoryData);
+ msg->addUUIDFast(_PREHASH_OwnerID, item_entry["owner_id"].asUUID());
+ msg->addUUIDFast(_PREHASH_ItemID, item_entry["item_id"].asUUID());
+ if (msg->isSendFull(NULL))
+ {
+ start_new_message = TRUE;
+ gAgent.sendReliableMessage();
+ }
+ }
+ if (!start_new_message)
+ {
+ gAgent.sendReliableMessage();
+ }
+ }
+}
+
+void LLInventoryFetchItemsObserver::startFetch()
+{
+ LLUUID owner_id;
+ LLSD items_llsd;
+ for (uuid_vec_t::const_iterator it = mIDs.begin(); it < mIDs.end(); ++it)
+ {
+ LLViewerInventoryItem* item = gInventory.getItem(*it);
+ if (item)
+ {
+ if (item->isFinished())
+ {
+ // It's complete, so put it on the complete container.
+ mComplete.push_back(*it);
+ continue;
+ }
+ else
+ {
+ owner_id = item->getPermissions().getOwner();
+ }
+ }
+ else
+ {
+ // assume it's agent inventory.
+ owner_id = gAgent.getID();
+ }
+
+ // Ignore categories since they're not items. We
+ // could also just add this to mComplete but not sure what the
+ // side-effects would be, so ignoring to be safe.
+ LLViewerInventoryCategory* cat = gInventory.getCategory(*it);
+ if (cat)
+ {
+ continue;
+ }
+
+ // It's incomplete, so put it on the incomplete container, and
+ // pack this on the message.
+ mIncomplete.push_back(*it);
+
+ // Prepare the data to fetch
+ LLSD item_entry;
+ item_entry["owner_id"] = owner_id;
+ item_entry["item_id"] = (*it);
+ items_llsd.append(item_entry);
+ }
+
+ mFetchingPeriod.reset();
+ mFetchingPeriod.setTimerExpirySec(FETCH_TIMER_EXPIRY);
+
+ fetch_items_from_llsd(items_llsd);
+}
+
+LLInventoryFetchDescendentsObserver::LLInventoryFetchDescendentsObserver(const LLUUID& cat_id) :
+ LLInventoryFetchObserver(cat_id)
+{
+}
+
+LLInventoryFetchDescendentsObserver::LLInventoryFetchDescendentsObserver(const uuid_vec_t& cat_ids) :
+ LLInventoryFetchObserver(cat_ids)
+{
+}
+
+// virtual
+void LLInventoryFetchDescendentsObserver::changed(U32 mask)
+{
+ for (uuid_vec_t::iterator it = mIncomplete.begin(); it < mIncomplete.end();)
+ {
+ const LLViewerInventoryCategory* cat = gInventory.getCategory(*it);
+ if (!cat)
+ {
+ it = mIncomplete.erase(it);
+ continue;
+ }
+ if (isCategoryComplete(cat))
+ {
+ mComplete.push_back(*it);
+ it = mIncomplete.erase(it);
+ continue;
+ }
+ ++it;
+ }
+ if (mIncomplete.empty())
+ {
+ done();
+ }
+}
+
+void LLInventoryFetchDescendentsObserver::startFetch()
+{
+ for (uuid_vec_t::const_iterator it = mIDs.begin(); it != mIDs.end(); ++it)
+ {
+ LLViewerInventoryCategory* cat = gInventory.getCategory(*it);
+ if (!cat) continue;
+ if (!isCategoryComplete(cat))
+ {
+ cat->fetch(); //blindly fetch it without seeing if anything else is fetching it.
+ mIncomplete.push_back(*it); //Add to list of things being downloaded for this observer.
+ }
+ else
+ {
+ mComplete.push_back(*it);
+ }
+ }
+}
+
+BOOL LLInventoryFetchDescendentsObserver::isCategoryComplete(const LLViewerInventoryCategory* cat) const
+{
+ const S32 version = cat->getVersion();
+ const S32 expected_num_descendents = cat->getDescendentCount();
+ if ((version == LLViewerInventoryCategory::VERSION_UNKNOWN) ||
+ (expected_num_descendents == LLViewerInventoryCategory::DESCENDENT_COUNT_UNKNOWN))
+ {
+ return FALSE;
+ }
+ // it might be complete - check known descendents against
+ // currently available.
+ LLInventoryModel::cat_array_t* cats;
+ LLInventoryModel::item_array_t* items;
+ gInventory.getDirectDescendentsOf(cat->getUUID(), cats, items);
+ if (!cats || !items)
+ {
+ llwarns << "Category '" << cat->getName() << "' descendents corrupted, fetch failed." << llendl;
+ // NULL means the call failed -- cats/items map doesn't exist (note: this does NOT mean
+ // that the cat just doesn't have any items or subfolders).
+ // Unrecoverable, so just return done so that this observer can be cleared
+ // from memory.
+ return TRUE;
+ }
+ const S32 current_num_known_descendents = cats->count() + items->count();
+
+ // Got the number of descendents that we were expecting, so we're done.
+ if (current_num_known_descendents == expected_num_descendents)
+ {
+ return TRUE;
+ }
+
+ // Error condition, but recoverable. This happens if something was added to the
+ // category before it was initialized, so accountForUpdate didn't update descendent
+ // count and thus the category thinks it has fewer descendents than it actually has.
+ if (current_num_known_descendents >= expected_num_descendents)
+ {
+ llwarns << "Category '" << cat->getName() << "' expected descendentcount:" << expected_num_descendents << " descendents but got descendentcount:" << current_num_known_descendents << llendl;
+ const_cast<LLViewerInventoryCategory *>(cat)->setDescendentCount(current_num_known_descendents);
+ return TRUE;
+ }
+ return FALSE;
+}
+
+LLInventoryFetchComboObserver::LLInventoryFetchComboObserver(const uuid_vec_t& folder_ids,
+ const uuid_vec_t& item_ids)
+{
+ mFetchDescendents = new LLInventoryFetchDescendentsObserver(folder_ids);
+
+ uuid_vec_t pruned_item_ids;
+ for (uuid_vec_t::const_iterator item_iter = item_ids.begin();
+ item_iter != item_ids.end();
+ ++item_iter)
+ {
+ const LLUUID& item_id = (*item_iter);
+ const LLViewerInventoryItem* item = gInventory.getItem(item_id);
+ if (item && std::find(folder_ids.begin(), folder_ids.end(), item->getParentUUID()) == folder_ids.end())
+ {
+ continue;
+ }
+ pruned_item_ids.push_back(item_id);
+ }
+
+ mFetchItems = new LLInventoryFetchItemsObserver(pruned_item_ids);
+ mFetchDescendents = new LLInventoryFetchDescendentsObserver(folder_ids);
+}
+
+LLInventoryFetchComboObserver::~LLInventoryFetchComboObserver()
+{
+ mFetchItems->done();
+ mFetchDescendents->done();
+ delete mFetchItems;
+ delete mFetchDescendents;
+}
+
+void LLInventoryFetchComboObserver::changed(U32 mask)
+{
+ mFetchItems->changed(mask);
+ mFetchDescendents->changed(mask);
+ if (mFetchItems->isFinished() && mFetchDescendents->isFinished())
+ {
+ done();
+ }
+}
+
+void LLInventoryFetchComboObserver::startFetch()
+{
+ mFetchItems->startFetch();
+ mFetchDescendents->startFetch();
+}
+
+void LLInventoryExistenceObserver::watchItem(const LLUUID& id)
+{
+ if (id.notNull())
+ {
+ mMIA.push_back(id);
+ }
+}
+
+void LLInventoryExistenceObserver::changed(U32 mask)
+{
+ // scan through the incomplete items and move or erase them as
+ // appropriate.
+ if (!mMIA.empty())
+ {
+ for (uuid_vec_t::iterator it = mMIA.begin(); it < mMIA.end(); )
+ {
+ LLViewerInventoryItem* item = gInventory.getItem(*it);
+ if (!item)
+ {
+ ++it;
+ continue;
+ }
+ mExist.push_back(*it);
+ it = mMIA.erase(it);
+ }
+ if (mMIA.empty())
+ {
+ done();
+ }
+ }
+}
+
+void LLInventoryAddItemByAssetObserver::changed(U32 mask)
+{
+ if(!(mask & LLInventoryObserver::ADD))
+ {
+ return;
+ }
+
+ // nothing is watched
+ if (mWatchedAssets.size() == 0)
+ {
+ return;
+ }
+
+ LLMessageSystem* msg = gMessageSystem;
+ if (!(msg->getMessageName() && (0 == strcmp(msg->getMessageName(), "UpdateCreateInventoryItem"))))
+ {
+ // this is not our message
+ return; // to prevent a crash. EXT-7921;
+ }
+
+ LLPointer<LLViewerInventoryItem> item = new LLViewerInventoryItem;
+ S32 num_blocks = msg->getNumberOfBlocksFast(_PREHASH_InventoryData);
+ for(S32 i = 0; i < num_blocks; ++i)
+ {
+ item->unpackMessage(msg, _PREHASH_InventoryData, i);
+ const LLUUID& asset_uuid = item->getAssetUUID();
+ if (item->getUUID().notNull() && asset_uuid.notNull())
+ {
+ if (isAssetWatched(asset_uuid))
+ {
+ LL_DEBUGS("Inventory_Move") << "Found asset UUID: " << asset_uuid << LL_ENDL;
+ mAddedItems.push_back(item->getUUID());
+ }
+ }
+ }
+
+ if (mAddedItems.size() == mWatchedAssets.size())
+ {
+ done();
+ LL_DEBUGS("Inventory_Move") << "All watched items are added & processed." << LL_ENDL;
+ mAddedItems.clear();
+
+ // Unable to clean watched items here due to somebody can require to check them in current frame.
+ // set dirty state to clean them while next watch cycle.
+ mIsDirty = true;
+ }
+}
+
+void LLInventoryAddItemByAssetObserver::watchAsset(const LLUUID& asset_id)
+{
+ if(asset_id.notNull())
+ {
+ if (mIsDirty)
+ {
+ LL_DEBUGS("Inventory_Move") << "Watched items are dirty. Clean them." << LL_ENDL;
+ mWatchedAssets.clear();
+ mIsDirty = false;
+ }
+
+ mWatchedAssets.push_back(asset_id);
+ onAssetAdded(asset_id);
+ }
+}
+
+bool LLInventoryAddItemByAssetObserver::isAssetWatched( const LLUUID& asset_id )
+{
+ return std::find(mWatchedAssets.begin(), mWatchedAssets.end(), asset_id) != mWatchedAssets.end();
+}
+
+void LLInventoryAddedObserver::changed(U32 mask)
+{
+ if (!(mask & LLInventoryObserver::ADD))
+ {
+ return;
+ }
+
+ // *HACK: If this was in response to a packet off
+ // the network, figure out which item was updated.
+ LLMessageSystem* msg = gMessageSystem;
+
+ std::string msg_name;
+ if (mMessageName.empty())
+ {
+ msg_name = msg->getMessageName();
+ }
+ else
+ {
+ msg_name = mMessageName;
+ }
+
+ if (msg_name.empty())
+ {
+ return;
+ }
+
+ // We only want newly created inventory items. JC
+ if ( msg_name != "UpdateCreateInventoryItem")
+ {
+ return;
+ }
+
+ LLPointer<LLViewerInventoryItem> titem = new LLViewerInventoryItem;
+ S32 num_blocks = msg->getNumberOfBlocksFast(_PREHASH_InventoryData);
+ for (S32 i = 0; i < num_blocks; ++i)
+ {
+ titem->unpackMessage(msg, _PREHASH_InventoryData, i);
+ if (!(titem->getUUID().isNull()))
+ {
+ //we don't do anything with null keys
+ mAdded.push_back(titem->getUUID());
+ }
+ }
+ if (!mAdded.empty())
+ {
+ done();
+ }
+}
+
+LLInventoryTransactionObserver::LLInventoryTransactionObserver(const LLTransactionID& transaction_id) :
+ mTransactionID(transaction_id)
+{
+}
+
+void LLInventoryTransactionObserver::changed(U32 mask)
+{
+ if (mask & LLInventoryObserver::ADD)
+ {
+ // This could be it - see if we are processing a bulk update
+ LLMessageSystem* msg = gMessageSystem;
+ if (msg->getMessageName()
+ && (0 == strcmp(msg->getMessageName(), "BulkUpdateInventory")))
+ {
+ // we have a match for the message - now check the
+ // transaction id.
+ LLUUID id;
+ msg->getUUIDFast(_PREHASH_AgentData, _PREHASH_TransactionID, id);
+ if (id == mTransactionID)
+ {
+ // woo hoo, we found it
+ uuid_vec_t folders;
+ uuid_vec_t items;
+ S32 count;
+ count = msg->getNumberOfBlocksFast(_PREHASH_FolderData);
+ S32 i;
+ for (i = 0; i < count; ++i)
+ {
+ msg->getUUIDFast(_PREHASH_FolderData, _PREHASH_FolderID, id, i);
+ if (id.notNull())
+ {
+ folders.push_back(id);
+ }
+ }
+ count = msg->getNumberOfBlocksFast(_PREHASH_ItemData);
+ for (i = 0; i < count; ++i)
+ {
+ msg->getUUIDFast(_PREHASH_ItemData, _PREHASH_ItemID, id, i);
+ if (id.notNull())
+ {
+ items.push_back(id);
+ }
+ }
+
+ // call the derived class the implements this method.
+ done(folders, items);
+ }
+ }
+ }
+}
+
+void LLInventoryCategoriesObserver::changed(U32 mask)
+{
+ if (!mCategoryMap.size())
+ return;
+
+ for (category_map_t::iterator iter = mCategoryMap.begin();
+ iter != mCategoryMap.end();
+ ++iter)
+ {
+ const LLUUID& cat_id = (*iter).first;
+
+ LLViewerInventoryCategory* category = gInventory.getCategory(cat_id);
+ if (!category)
+ continue;
+
+ const S32 version = category->getVersion();
+ const S32 expected_num_descendents = category->getDescendentCount();
+ if ((version == LLViewerInventoryCategory::VERSION_UNKNOWN) ||
+ (expected_num_descendents == LLViewerInventoryCategory::DESCENDENT_COUNT_UNKNOWN))
+ {
+ continue;
+ }
+
+ // Check number of known descendents to find out whether it has changed.
+ LLInventoryModel::cat_array_t* cats;
+ LLInventoryModel::item_array_t* items;
+ gInventory.getDirectDescendentsOf(cat_id, cats, items);
+ if (!cats || !items)
+ {
+ llwarns << "Category '" << category->getName() << "' descendents corrupted, fetch failed." << llendl;
+ // NULL means the call failed -- cats/items map doesn't exist (note: this does NOT mean
+ // that the cat just doesn't have any items or subfolders).
+ // Unrecoverable, so just skip this category.
+
+ llassert(cats != NULL && items != NULL);
+
+ continue;
+ }
+
+ const S32 current_num_known_descendents = cats->count() + items->count();
+
+ LLCategoryData& cat_data = (*iter).second;
+
+ bool cat_changed = false;
+
+ // If category version or descendents count has changed
+ // update category data in mCategoryMap
+ if (version != cat_data.mVersion || current_num_known_descendents != cat_data.mDescendentsCount)
+ {
+ cat_data.mVersion = version;
+ cat_data.mDescendentsCount = current_num_known_descendents;
+ cat_changed = true;
+ }
+
+ // If any item names have changed, update the name hash
+ // Only need to check if (a) name hash has not previously been
+ // computed, or (b) a name has changed.
+ if (!cat_data.mIsNameHashInitialized || (mask & LLInventoryObserver::LABEL))
+ {
+ LLMD5 item_name_hash = gInventory.hashDirectDescendentNames(cat_id);
+ if (cat_data.mItemNameHash != item_name_hash)
+ {
+ cat_data.mIsNameHashInitialized = true;
+ cat_data.mItemNameHash = item_name_hash;
+ cat_changed = true;
+ }
+ }
+
+ // If anything has changed above, fire the callback.
+ if (cat_changed)
+ cat_data.mCallback();
+ }
+}
+
+bool LLInventoryCategoriesObserver::addCategory(const LLUUID& cat_id, callback_t cb)
+{
+ S32 version = LLViewerInventoryCategory::VERSION_UNKNOWN;
+ S32 current_num_known_descendents = LLViewerInventoryCategory::DESCENDENT_COUNT_UNKNOWN;
+ bool can_be_added = true;
+
+ LLViewerInventoryCategory* category = gInventory.getCategory(cat_id);
+ // If category could not be retrieved it might mean that
+ // inventory is unusable at the moment so the category is
+ // stored with VERSION_UNKNOWN and DESCENDENT_COUNT_UNKNOWN,
+ // it may be updated later.
+ if (category)
+ {
+ // Inventory category version is used to find out if some changes
+ // to a category have been made.
+ version = category->getVersion();
+
+ LLInventoryModel::cat_array_t* cats;
+ LLInventoryModel::item_array_t* items;
+ gInventory.getDirectDescendentsOf(cat_id, cats, items);
+ if (!cats || !items)
+ {
+ llwarns << "Category '" << category->getName() << "' descendents corrupted, fetch failed." << llendl;
+ // NULL means the call failed -- cats/items map doesn't exist (note: this does NOT mean
+ // that the cat just doesn't have any items or subfolders).
+ // Unrecoverable, so just return "false" meaning that the category can't be observed.
+ can_be_added = false;
+
+ llassert(cats != NULL && items != NULL);
+ }
+ else
+ {
+ current_num_known_descendents = cats->count() + items->count();
+ }
+ }
+
+ if (can_be_added)
+ {
+ mCategoryMap.insert(category_map_value_t(
+ cat_id,LLCategoryData(cat_id, cb, version, current_num_known_descendents)));
+ }
+
+ return can_be_added;
+}
+
+void LLInventoryCategoriesObserver::removeCategory(const LLUUID& cat_id)
+{
+ mCategoryMap.erase(cat_id);
+}
+
+LLInventoryCategoriesObserver::LLCategoryData::LLCategoryData(
+ const LLUUID& cat_id, callback_t cb, S32 version, S32 num_descendents)
+
+ : mCatID(cat_id)
+ , mCallback(cb)
+ , mVersion(version)
+ , mDescendentsCount(num_descendents)
+ , mIsNameHashInitialized(false)
+{
+ mItemNameHash.finalize();
+}