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225 lines
7.5 KiB
225 lines
7.5 KiB
/*==LICENSE==* |
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CyanWorlds.com Engine - MMOG client, server and tools |
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Copyright (C) 2011 Cyan Worlds, Inc. |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. |
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Additional permissions under GNU GPL version 3 section 7 |
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If you modify this Program, or any covered work, by linking or |
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combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK, |
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NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent |
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JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK |
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(or a modified version of those libraries), |
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containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA, |
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PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG |
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JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the |
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licensors of this Program grant you additional |
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permission to convey the resulting work. Corresponding Source for a |
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non-source form of such a combination shall include the source code for |
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the parts of OpenSSL and IJG JPEG Library used as well as that of the covered |
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work. |
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You can contact Cyan Worlds, Inc. by email legal@cyan.com |
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or by snail mail at: |
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Cyan Worlds, Inc. |
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14617 N Newport Hwy |
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Mead, WA 99021 |
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*==LICENSE==*/ |
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#include "plMsgForwarder.h" |
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#include "hsResMgr.h" |
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#include "HeadSpin.h" |
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#include "pnMessage/plMessage.h" |
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#include "pnKeyedObject/plKey.h" |
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#include "pnNetCommon/plNetApp.h" |
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#include "pnNetCommon/plSynchedObject.h" |
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#include "pnMessage/plSelfDestructMsg.h" |
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#include "pnMessage/plMessageWithCallbacks.h" |
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class plForwardCallback |
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{ |
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public: |
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hsTArray<plKey> fOrigReceivers; |
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int fNumCallbacks; |
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hsBool fNetPropogate; |
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}; |
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plMsgForwarder::plMsgForwarder() |
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{ |
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} |
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plMsgForwarder::~plMsgForwarder() |
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{ |
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CallbackMap::iterator i = fCallbacks.begin(); |
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for (; i != fCallbacks.end(); i++) |
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delete (*i).second; |
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} |
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void plMsgForwarder::Read(hsStream* s, hsResMgr* mgr) |
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{ |
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hsKeyedObject::Read(s, mgr); |
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int numKeys = s->ReadLE32(); |
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fForwardKeys.Reset(); |
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fForwardKeys.Expand(numKeys); |
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fForwardKeys.SetCount(numKeys); |
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for (int i = 0; i < numKeys; i++) |
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{ |
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plKey key = mgr->ReadKey(s); |
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fForwardKeys[i] = key; |
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} |
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} |
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void plMsgForwarder::Write(hsStream* s, hsResMgr* mgr) |
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{ |
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hsKeyedObject::Write(s, mgr); |
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int numKeys = fForwardKeys.Count(); |
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s->WriteLE32(numKeys); |
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for (int i = 0; i < numKeys; i++) |
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mgr->WriteKey(s, fForwardKeys[i]); |
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} |
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hsBool plMsgForwarder::MsgReceive(plMessage* msg) |
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{ |
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// Self destruct messages are for us only |
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plSelfDestructMsg *selfMsg = plSelfDestructMsg::ConvertNoRef(msg); |
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if (selfMsg) |
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return hsKeyedObject::MsgReceive(msg); |
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// If this is a callback message, it needs to be handled differently |
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if (IForwardCallbackMsg(msg)) |
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return true; |
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// All other messages are forwarded |
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IForwardMsg(msg); |
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return true; |
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} |
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hsBool plMsgForwarder::IForwardCallbackMsg(plMessage *msg) |
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{ |
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// Only process as a callback message if it is one, AND it has callbacks |
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plMessageWithCallbacks *callbackMsg = plMessageWithCallbacks::ConvertNoRef(msg); |
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if (callbackMsg && callbackMsg->GetNumCallbacks() > 0) |
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{ |
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for (int i = 0; i < callbackMsg->GetNumCallbacks(); i++) |
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{ |
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plEventCallbackMsg *event = callbackMsg->GetEventCallback(i); |
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hsAssert(event, "Message forwarder only supports event callback messages"); |
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if (event) |
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{ |
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plForwardCallback *fc = new plForwardCallback; |
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fc->fNumCallbacks = fForwardKeys.Count(); |
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// Turn off net propagate the callbacks to us will all be local. Only the |
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// callback we send will go over the net |
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fc->fNetPropogate = (event->HasBCastFlag(plMessage::kNetPropagate) != 0); |
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event->SetBCastFlag(plMessage::kNetPropagate, false); |
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for (int j = 0; j < event->GetNumReceivers(); j++) |
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fc->fOrigReceivers.Append((plKey)event->GetReceiver(j)); |
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event->ClearReceivers(); |
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event->AddReceiver(GetKey()); |
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fCallbacks[event] = fc; |
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#if 0 |
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hsStatusMessageF("Adding CBMsg, eventSender=%s, eventRemoteMsg=%d\n", |
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event->GetSender() ? event->GetSender()->GetName() : "nil", fc->fNetPropogate); |
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#endif |
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} |
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} |
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#if 0 |
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hsStatusMessageF("Fwding CBMsg, sender=%s, remoteMsg=%d", |
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msg->GetSender() ? msg->GetSender()->GetName() : "nil", msg->HasBCastFlag(plMessage::kNetNonLocal)); |
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#endif |
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IForwardMsg(callbackMsg); |
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return true; |
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} |
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// Callback from one of our forward keys. Don't send the final callback to the original |
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// requester until all forward keys have reported in. |
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plEventCallbackMsg *eventMsg = plEventCallbackMsg::ConvertNoRef(msg); |
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if (eventMsg) |
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{ |
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CallbackMap::const_iterator it = fCallbacks.find(eventMsg); |
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if (it != fCallbacks.end()) |
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{ |
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plForwardCallback *fc = it->second; |
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if (--fc->fNumCallbacks == 0) |
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{ |
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hsStatusMessageF("plEventCallbackMsg received, erasing, sender=%s, remoteMsg=%d\n", |
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msg->GetSender() ? msg->GetSender()->GetName() : "nil", msg->HasBCastFlag(plMessage::kNetNonLocal)); |
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fCallbacks.erase(eventMsg); |
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plUoid uoid = GetKey()->GetUoid(); |
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hsBool locallyOwned = (plNetClientApp::GetInstance()->IsLocallyOwned(uoid) != plSynchedObject::kNo); |
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// If the callback was originally net propagated, and we own this forwarder, net propagate the callback |
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if (fc->fNetPropogate && locallyOwned) |
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eventMsg->SetBCastFlag(plMessage::kNetPropagate); |
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eventMsg->ClearReceivers(); |
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eventMsg->AddReceivers(fc->fOrigReceivers); |
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eventMsg->SetSender(GetKey()); |
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hsRefCnt_SafeRef(eventMsg); |
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eventMsg->Send(); |
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delete fc; |
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} |
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} |
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else |
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{ |
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hsStatusMessageF("! Unknown plEventCallbackMsg received, sender=%s, remoteMsg=%d\n", |
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msg->GetSender() ? msg->GetSender()->GetName() : "nil", msg->HasBCastFlag(plMessage::kNetNonLocal)); |
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hsAssert(0, "Unknown plEventCallbackMsg received"); |
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} |
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return true; |
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} |
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return false; |
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} |
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void plMsgForwarder::IForwardMsg(plMessage *msg) |
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{ |
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// Back up the message's original receivers |
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hsTArray<plKey> oldKeys; |
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for (int i = 0; i < msg->GetNumReceivers(); i++) |
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oldKeys.Append((plKey)msg->GetReceiver(i)); |
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// Set to our receivers and send |
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hsRefCnt_SafeRef(msg); |
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msg->ClearReceivers(); |
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msg->AddReceivers(fForwardKeys); |
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msg->Send(); |
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// Reset back to the original receivers. This is so we don't screw up objects |
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// who reuse their messages |
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msg->ClearReceivers(); |
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msg->AddReceivers(oldKeys); |
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} |
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void plMsgForwarder::AddForwardKey(plKey key) |
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{ |
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if (fForwardKeys.Find(key) == fForwardKeys.kMissingIndex) |
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fForwardKeys.Append(key); |
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}
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