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Diffstat (limited to 'indra/newview/llpathfindingmanager.cpp')
| -rw-r--r-- | indra/newview/llpathfindingmanager.cpp | 552 |
1 files changed, 552 insertions, 0 deletions
diff --git a/indra/newview/llpathfindingmanager.cpp b/indra/newview/llpathfindingmanager.cpp new file mode 100644 index 0000000000..5c9293a28a --- /dev/null +++ b/indra/newview/llpathfindingmanager.cpp @@ -0,0 +1,552 @@ +/**
+ * @file llpathfindingmanager.cpp
+ * @author William Todd Stinson
+ * @brief A state manager for the various pathfinding states.
+ *
+ * $LicenseInfo:firstyear=2002&license=viewerlgpl$
+ * 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 <string>
+
+#include "llviewerprecompiledheaders.h"
+#include "llpathfindingmanager.h"
+#include "llsingleton.h"
+#include "llhttpclient.h"
+#include "llagent.h"
+#include "llviewerregion.h"
+#include "llpathfindinglinkset.h"
+#include "llpathfindinglinksetlist.h"
+
+#include <boost/function.hpp>
+#include <boost/signals2.hpp>
+
+#define CAP_SERVICE_RETRIEVE_NAVMESH "RetrieveNavMeshSrc"
+
+#define CAP_SERVICE_AGENT_STATE "AgentPreferences"
+#define ALTER_PERMANENT_OBJECTS_FIELD "alter_permanent_objects"
+
+#define CAP_SERVICE_OBJECT_LINKSETS "ObjectNavMeshProperties"
+#define CAP_SERVICE_TERRAIN_LINKSETS "TerrainNavMeshProperties"
+
+//---------------------------------------------------------------------------
+// AgentStateResponder
+//---------------------------------------------------------------------------
+
+class AgentStateResponder : public LLHTTPClient::Responder
+{
+public:
+ AgentStateResponder(const std::string &pCapabilityURL, LLPathfindingManager::EAgentState pRequestedAgentState = LLPathfindingManager::kAgentStateUnknown);
+ virtual ~AgentStateResponder();
+
+ virtual void result(const LLSD &pContent);
+ virtual void error(U32 pStatus, const std::string& pReason);
+
+protected:
+
+private:
+ std::string mCapabilityURL;
+ LLPathfindingManager::EAgentState mRequestedAgentState;
+};
+
+//---------------------------------------------------------------------------
+// LinksetsResponder
+//---------------------------------------------------------------------------
+
+class LinksetsResponder
+{
+public:
+ LinksetsResponder(LLPathfindingManager::linksets_callback_t pLinksetsCallback, bool pIsObjectRequested, bool pIsTerrainRequested);
+ virtual ~LinksetsResponder();
+
+ void handleObjectLinksetsResult(const LLSD &pContent);
+ void handleObjectLinksetsError(U32 pStatus, const std::string &pReason, const std::string &pURL);
+ void handleTerrainLinksetsResult(const LLSD &pContent);
+ void handleTerrainLinksetsError(U32 pStatus, const std::string &pReason, const std::string &pURL);
+
+protected:
+
+private:
+ void sendCallback();
+
+ typedef enum
+ {
+ kNotRequested,
+ kWaiting,
+ kReceivedGood,
+ kReceivedError
+ } EMessagingState;
+
+ LLPathfindingManager::linksets_callback_t mLinksetsCallback;
+
+ EMessagingState mObjectMessagingState;
+ EMessagingState mTerrainMessagingState;
+
+ LLPathfindingLinksetListPtr mObjectLinksetListPtr;
+ LLPathfindingLinksetPtr mTerrainLinksetPtr;
+};
+
+typedef boost::shared_ptr<LinksetsResponder> LinksetsResponderPtr;
+
+//---------------------------------------------------------------------------
+// ObjectLinksetsResponder
+//---------------------------------------------------------------------------
+
+class ObjectLinksetsResponder : public LLHTTPClient::Responder
+{
+public:
+ ObjectLinksetsResponder(const std::string &pCapabilityURL, LinksetsResponderPtr pLinksetsResponsderPtr);
+ virtual ~ObjectLinksetsResponder();
+
+ virtual void result(const LLSD &pContent);
+ virtual void error(U32 pStatus, const std::string &pReason);
+
+protected:
+
+private:
+ std::string mCapabilityURL;
+ LinksetsResponderPtr mLinksetsResponsderPtr;
+};
+
+//---------------------------------------------------------------------------
+// TerrainLinksetsResponder
+//---------------------------------------------------------------------------
+
+class TerrainLinksetsResponder : public LLHTTPClient::Responder
+{
+public:
+ TerrainLinksetsResponder(const std::string &pCapabilityURL, LinksetsResponderPtr pLinksetsResponsderPtr);
+ virtual ~TerrainLinksetsResponder();
+
+ virtual void result(const LLSD &pContent);
+ virtual void error(U32 pStatus, const std::string &pReason);
+
+protected:
+
+private:
+ std::string mCapabilityURL;
+ LinksetsResponderPtr mLinksetsResponsderPtr;
+};
+
+//---------------------------------------------------------------------------
+// LLPathfindingManager
+//---------------------------------------------------------------------------
+
+LLPathfindingManager::LLPathfindingManager()
+ : LLSingleton<LLPathfindingManager>(),
+ mAgentStateSignal(),
+ mAgentState(kAgentStateUnknown),
+ mLastKnownNonErrorAgentState(kAgentStateUnknown)
+{
+}
+
+LLPathfindingManager::~LLPathfindingManager()
+{
+}
+
+bool LLPathfindingManager::isPathfindingEnabledForCurrentRegion() const
+{
+ std::string retrieveNavMeshURL = getRetrieveNavMeshURLForCurrentRegion();
+ return !retrieveNavMeshURL.empty();
+}
+
+bool LLPathfindingManager::isAllowAlterPermanent()
+{
+ return (!isPathfindingEnabledForCurrentRegion() || (getAgentState() == kAgentStateUnfrozen));
+}
+
+bool LLPathfindingManager::isAllowViewTerrainProperties() const
+{
+ LLViewerRegion* region = getCurrentRegion();
+ return (gAgent.isGodlike() || ((region != NULL) && region->canManageEstate()));
+}
+
+LLPathfindingManager::agent_state_slot_t LLPathfindingManager::registerAgentStateSignal(agent_state_callback_t pAgentStateCallback)
+{
+ return mAgentStateSignal.connect(pAgentStateCallback);
+}
+
+LLPathfindingManager::EAgentState LLPathfindingManager::getAgentState()
+{
+ if (!isPathfindingEnabledForCurrentRegion())
+ {
+ setAgentState(kAgentStateNotEnabled);
+ }
+ else
+ {
+ if (!isValidAgentState(mAgentState))
+ {
+ requestGetAgentState();
+ }
+ }
+
+ return mAgentState;
+}
+
+LLPathfindingManager::EAgentState LLPathfindingManager::getLastKnownNonErrorAgentState() const
+{
+ return mLastKnownNonErrorAgentState;
+}
+
+void LLPathfindingManager::requestSetAgentState(EAgentState pRequestedAgentState)
+{
+ llassert(isValidAgentState(pRequestedAgentState));
+ std::string agentStateURL = getAgentStateURLForCurrentRegion();
+
+ if (agentStateURL.empty())
+ {
+ setAgentState(kAgentStateNotEnabled);
+ }
+ else
+ {
+ LLSD request;
+ request[ALTER_PERMANENT_OBJECTS_FIELD] = static_cast<LLSD::Boolean>(pRequestedAgentState == kAgentStateUnfrozen);
+
+ LLHTTPClient::ResponderPtr responder = new AgentStateResponder(agentStateURL, pRequestedAgentState);
+ LLHTTPClient::post(agentStateURL, request, responder);
+ }
+}
+
+LLPathfindingManager::ELinksetsRequestStatus LLPathfindingManager::requestGetLinksets(linksets_callback_t pLinksetsCallback) const
+{
+ ELinksetsRequestStatus status;
+
+ std::string objectLinksetsURL = getObjectLinksetsURLForCurrentRegion();
+ std::string terrainLinksetsURL = getTerrainLinksetsURLForCurrentRegion();
+ if (objectLinksetsURL.empty() || terrainLinksetsURL.empty())
+ {
+ status = kLinksetsRequestNotEnabled;
+ }
+ else
+ {
+ bool doRequestTerrain = isAllowViewTerrainProperties();
+ LinksetsResponderPtr linksetsResponderPtr(new LinksetsResponder(pLinksetsCallback, true, doRequestTerrain));
+
+ LLHTTPClient::ResponderPtr objectLinksetsResponder = new ObjectLinksetsResponder(objectLinksetsURL, linksetsResponderPtr);
+ LLHTTPClient::get(objectLinksetsURL, objectLinksetsResponder);
+
+ if (doRequestTerrain)
+ {
+ LLHTTPClient::ResponderPtr terrainLinksetsResponder = new TerrainLinksetsResponder(terrainLinksetsURL, linksetsResponderPtr);
+ LLHTTPClient::get(terrainLinksetsURL, terrainLinksetsResponder);
+ }
+
+ status = kLinksetsRequestStarted;
+ }
+
+ return status;
+}
+
+LLPathfindingManager::ELinksetsRequestStatus LLPathfindingManager::requestSetLinksets(LLPathfindingLinksetListPtr pLinksetList, LLPathfindingLinkset::ELinksetUse pLinksetUse, S32 pA, S32 pB, S32 pC, S32 pD, linksets_callback_t pLinksetsCallback) const
+{
+ ELinksetsRequestStatus status = kLinksetsRequestNotEnabled;
+
+ std::string objectLinksetsURL = getObjectLinksetsURLForCurrentRegion();
+ std::string terrainLinksetsURL = getTerrainLinksetsURLForCurrentRegion();
+ if (objectLinksetsURL.empty() || terrainLinksetsURL.empty())
+ {
+ status = kLinksetsRequestNotEnabled;
+ }
+ else
+ {
+ LLSD objectPostData = pLinksetList->encodeObjectFields(pLinksetUse, pA, pB, pC, pD);
+ LLSD terrainPostData;
+ if (isAllowViewTerrainProperties())
+ {
+ terrainPostData = pLinksetList->encodeTerrainFields(pLinksetUse, pA, pB, pC, pD);
+ }
+
+ if (objectPostData.isUndefined() && terrainPostData.isUndefined())
+ {
+ status = kLinksetsRequestCompleted;
+ }
+ else
+ {
+ LinksetsResponderPtr linksetsResponderPtr(new LinksetsResponder(pLinksetsCallback, !objectPostData.isUndefined(), !terrainPostData.isUndefined()));
+
+ if (!objectPostData.isUndefined())
+ {
+ LLHTTPClient::ResponderPtr objectLinksetsResponder = new ObjectLinksetsResponder(objectLinksetsURL, linksetsResponderPtr);
+ LLHTTPClient::put(objectLinksetsURL, objectPostData, objectLinksetsResponder);
+ }
+
+ if (!terrainPostData.isUndefined())
+ {
+ LLHTTPClient::ResponderPtr terrainLinksetsResponder = new TerrainLinksetsResponder(terrainLinksetsURL, linksetsResponderPtr);
+ LLHTTPClient::put(terrainLinksetsURL, terrainPostData, terrainLinksetsResponder);
+ }
+
+ status = kLinksetsRequestStarted;
+ }
+ }
+
+ return status;
+}
+
+bool LLPathfindingManager::isValidAgentState(EAgentState pAgentState)
+{
+ return ((pAgentState == kAgentStateFrozen) || (pAgentState == kAgentStateUnfrozen));
+}
+
+void LLPathfindingManager::requestGetAgentState()
+{
+ std::string agentStateURL = getAgentStateURLForCurrentRegion();
+
+ if (agentStateURL.empty())
+ {
+ setAgentState(kAgentStateNotEnabled);
+ }
+ else
+ {
+ LLHTTPClient::ResponderPtr responder = new AgentStateResponder(agentStateURL);
+ LLHTTPClient::get(agentStateURL, responder);
+ }
+}
+
+void LLPathfindingManager::setAgentState(EAgentState pAgentState)
+{
+ mAgentState = pAgentState;
+
+ if (mAgentState != kAgentStateError)
+ {
+ mLastKnownNonErrorAgentState = mAgentState;
+ }
+
+ mAgentStateSignal(mAgentState);
+}
+
+void LLPathfindingManager::handleAgentStateResult(const LLSD &pContent, EAgentState pRequestedAgentState)
+{
+ llassert(pContent.has(ALTER_PERMANENT_OBJECTS_FIELD));
+ llassert(pContent.get(ALTER_PERMANENT_OBJECTS_FIELD).isBoolean());
+ EAgentState agentState = (pContent.get(ALTER_PERMANENT_OBJECTS_FIELD).asBoolean() ? kAgentStateUnfrozen : kAgentStateFrozen);
+
+ if (isValidAgentState(pRequestedAgentState) && (agentState != pRequestedAgentState))
+ {
+ agentState = kAgentStateError;
+ llassert(0);
+ }
+
+ setAgentState(agentState);
+}
+
+void LLPathfindingManager::handleAgentStateError(U32 pStatus, const std::string &pReason, const std::string &pURL)
+{
+ llwarns << "error with request to URL '" << pURL << "' because " << pReason << " (statusCode:" << pStatus << ")" << llendl;
+ setAgentState(kAgentStateError);
+}
+
+std::string LLPathfindingManager::getRetrieveNavMeshURLForCurrentRegion() const
+{
+ return getCapabilityURLForCurrentRegion(CAP_SERVICE_RETRIEVE_NAVMESH);
+}
+
+std::string LLPathfindingManager::getAgentStateURLForCurrentRegion() const
+{
+ return getCapabilityURLForCurrentRegion(CAP_SERVICE_AGENT_STATE);
+}
+
+std::string LLPathfindingManager::getObjectLinksetsURLForCurrentRegion() const
+{
+ return getCapabilityURLForCurrentRegion(CAP_SERVICE_OBJECT_LINKSETS);
+}
+
+std::string LLPathfindingManager::getTerrainLinksetsURLForCurrentRegion() const
+{
+ return getCapabilityURLForCurrentRegion(CAP_SERVICE_TERRAIN_LINKSETS);
+}
+
+std::string LLPathfindingManager::getCapabilityURLForCurrentRegion(const std::string &pCapabilityName) const
+{
+ std::string capabilityURL("");
+
+ LLViewerRegion* region = getCurrentRegion();
+ if (region != NULL)
+ {
+ capabilityURL = region->getCapability(pCapabilityName);
+ }
+
+ if (capabilityURL.empty())
+ {
+ llwarns << "cannot find capability '" << pCapabilityName << "' for current region '"
+ << ((region != NULL) ? region->getName() : "<null>") << "'" << llendl;
+ }
+
+ return capabilityURL;
+}
+
+LLViewerRegion *LLPathfindingManager::getCurrentRegion() const
+{
+ return gAgent.getRegion();
+}
+
+//---------------------------------------------------------------------------
+// AgentStateResponder
+//---------------------------------------------------------------------------
+
+AgentStateResponder::AgentStateResponder(const std::string &pCapabilityURL, LLPathfindingManager::EAgentState pRequestedAgentState)
+ : LLHTTPClient::Responder(),
+ mCapabilityURL(pCapabilityURL),
+ mRequestedAgentState(pRequestedAgentState)
+{
+}
+
+AgentStateResponder::~AgentStateResponder()
+{
+}
+
+void AgentStateResponder::result(const LLSD &pContent)
+{
+ LLPathfindingManager::getInstance()->handleAgentStateResult(pContent, mRequestedAgentState);
+}
+
+void AgentStateResponder::error(U32 pStatus, const std::string &pReason)
+{
+ LLPathfindingManager::getInstance()->handleAgentStateError(pStatus, pReason, mCapabilityURL);
+}
+
+//---------------------------------------------------------------------------
+// LinksetsResponder
+//---------------------------------------------------------------------------
+
+LinksetsResponder::LinksetsResponder(LLPathfindingManager::linksets_callback_t pLinksetsCallback, bool pIsObjectRequested, bool pIsTerrainRequested)
+ : mLinksetsCallback(pLinksetsCallback),
+ mObjectMessagingState(pIsObjectRequested ? kWaiting : kNotRequested),
+ mTerrainMessagingState(pIsTerrainRequested ? kWaiting : kNotRequested),
+ mObjectLinksetListPtr(),
+ mTerrainLinksetPtr()
+{
+}
+
+LinksetsResponder::~LinksetsResponder()
+{
+}
+
+void LinksetsResponder::handleObjectLinksetsResult(const LLSD &pContent)
+{
+ mObjectLinksetListPtr = LLPathfindingLinksetListPtr(new LLPathfindingLinksetList(pContent));
+
+ mObjectMessagingState = kReceivedGood;
+ if (mTerrainMessagingState != kWaiting)
+ {
+ sendCallback();
+ }
+}
+
+void LinksetsResponder::handleObjectLinksetsError(U32 pStatus, const std::string &pReason, const std::string &pURL)
+{
+ llwarns << "error with request to URL '" << pURL << "' because " << pReason << " (statusCode:" << pStatus << ")" << llendl;
+ mObjectMessagingState = kReceivedError;
+ if (mTerrainMessagingState != kWaiting)
+ {
+ sendCallback();
+ }
+}
+
+void LinksetsResponder::handleTerrainLinksetsResult(const LLSD &pContent)
+{
+ mTerrainLinksetPtr = LLPathfindingLinksetPtr(new LLPathfindingLinkset(pContent));
+
+ mTerrainMessagingState = kReceivedGood;
+ if (mObjectMessagingState != kWaiting)
+ {
+ sendCallback();
+ }
+}
+
+void LinksetsResponder::handleTerrainLinksetsError(U32 pStatus, const std::string &pReason, const std::string &pURL)
+{
+ mTerrainMessagingState = kReceivedError;
+ if (mObjectMessagingState != kWaiting)
+ {
+ sendCallback();
+ }
+}
+
+void LinksetsResponder::sendCallback()
+{
+ llassert(mObjectMessagingState != kWaiting);
+ llassert(mTerrainMessagingState != kWaiting);
+ LLPathfindingManager::ELinksetsRequestStatus requestStatus =
+ ((((mObjectMessagingState == kReceivedGood) || (mObjectMessagingState == kNotRequested)) &&
+ ((mTerrainMessagingState == kReceivedGood) || (mTerrainMessagingState == kNotRequested))) ?
+ LLPathfindingManager::kLinksetsRequestCompleted : LLPathfindingManager::kLinksetsRequestError);
+
+ if (mObjectMessagingState != kReceivedGood)
+ {
+ mObjectLinksetListPtr = LLPathfindingLinksetListPtr(new LLPathfindingLinksetList());
+ }
+
+ if (mTerrainMessagingState == kReceivedGood)
+ {
+ mObjectLinksetListPtr->insert(std::pair<std::string, LLPathfindingLinksetPtr>(mTerrainLinksetPtr->getUUID().asString(), mTerrainLinksetPtr));
+ }
+
+ mLinksetsCallback(requestStatus, mObjectLinksetListPtr);
+}
+
+//---------------------------------------------------------------------------
+// ObjectLinksetsResponder
+//---------------------------------------------------------------------------
+
+ObjectLinksetsResponder::ObjectLinksetsResponder(const std::string &pCapabilityURL, LinksetsResponderPtr pLinksetsResponsderPtr)
+ : mCapabilityURL(pCapabilityURL),
+ mLinksetsResponsderPtr(pLinksetsResponsderPtr)
+{
+}
+
+ObjectLinksetsResponder::~ObjectLinksetsResponder()
+{
+}
+
+void ObjectLinksetsResponder::result(const LLSD &pContent)
+{
+ mLinksetsResponsderPtr->handleObjectLinksetsResult(pContent);
+}
+
+void ObjectLinksetsResponder::error(U32 pStatus, const std::string &pReason)
+{
+ mLinksetsResponsderPtr->handleObjectLinksetsError(pStatus, pReason, mCapabilityURL);
+}
+
+//---------------------------------------------------------------------------
+// TerrainLinksetsResponder
+//---------------------------------------------------------------------------
+
+TerrainLinksetsResponder::TerrainLinksetsResponder(const std::string &pCapabilityURL, LinksetsResponderPtr pLinksetsResponsderPtr)
+: mCapabilityURL(pCapabilityURL),
+mLinksetsResponsderPtr(pLinksetsResponsderPtr)
+{
+}
+
+TerrainLinksetsResponder::~TerrainLinksetsResponder()
+{
+}
+
+void TerrainLinksetsResponder::result(const LLSD &pContent)
+{
+ mLinksetsResponsderPtr->handleTerrainLinksetsResult(pContent);
+}
+
+void TerrainLinksetsResponder::error(U32 pStatus, const std::string &pReason)
+{
+ mLinksetsResponsderPtr->handleTerrainLinksetsError(pStatus, pReason, mCapabilityURL);
+}
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