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270 lines
8.9 KiB
270 lines
8.9 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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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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#ifndef PLSYNCHOBJ_inc |
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#define PLSYNCHOBJ_inc |
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#include "hsTypes.h" |
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#include "../pnKeyedObject/hsKeyedObject.h" |
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#include "../pnKeyedObject/plKey.h" |
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#include "hsStlUtils.h" |
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#include "plNetGroup.h" |
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///////////////////////////////////// |
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// plSynchedObject |
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// one per savable object |
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///////////////////////////////////// |
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class hsStream; |
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class plDirtyNotifier; |
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class plSynchedObject : public hsKeyedObject |
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{ |
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public: |
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enum LocallyOwnedAnswer |
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{ |
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kNo=false, |
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kYes=true |
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}; |
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enum Flags |
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{ |
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kDontDirty = 0x1, |
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kSendReliably = 0x2, // object wants reliable send |
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kHasConstantNetGroup = 0x4, // has a constant net group. |
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kDontSynchGameMessages = 0x8, // don't send/recv game actions |
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kExcludePersistentState = 0x10, // don't send SDL state msgs to server, check exclude list |
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kExcludeAllPersistentState=0x20, // don't send ANY type of SDL state |
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kLocalOnly = (kExcludeAllPersistentState | kDontSynchGameMessages), // localOnly in all respects |
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kHasVolatileState = 0x40, // server won't save this state on shutdown |
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kAllStateIsVolatile = 0x80 |
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}; |
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enum SDLSendFlags |
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{ |
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kBCastToClients = 0x1, |
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kForceFullSend = 0x2, |
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kSkipLocalOwnershipCheck= 0x4, |
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kSendImmediately = 0x8, |
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kDontPersistOnServer = 0x10, // for an SDL bcast msg which is used for synching only, not persisting |
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kUseRelevanceRegions = 0x20, |
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kNewState = 0x40, |
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kIsAvatarState = 0x80, |
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}; |
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struct StateDefn |
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{ |
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plKey fObjKey; |
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UInt32 fSendFlags; |
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std::string fSDLName; |
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plSynchedObject* GetObject() const { return plSynchedObject::ConvertNoRef(fObjKey->ObjectIsLoaded()); } |
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StateDefn() : fObjKey(nil),fSendFlags(0) {} |
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StateDefn(plKey k, UInt32 f, const char* sdlName) : fObjKey(k),fSendFlags(f) { fSDLName=sdlName; } |
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}; |
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private: |
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typedef std::vector<std::string> SDLStateList; |
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SDLStateList fSDLExcludeList; |
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SDLStateList fSDLVolatileList; |
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UInt32 fSynchFlags; |
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plNetGroupId fNetGroup; |
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static std::vector<hsBool> fSynchStateStack; |
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static plSynchedObject* fStaticSynchedObj; // static which temporarily holds address of each object's synchMgr |
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static std::vector<StateDefn> fDirtyStates; |
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static void IRemoveDirtyState(plKey o, const char* sdlName); |
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static void IAddDirtyState(plKey o, const char* sdlName, UInt32 sendFlags); |
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bool IOKToDirty(const char* SDLStateName) const; |
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SDLStateList::const_iterator IFindInSDLStateList(const SDLStateList& list, const char* sdlName) const; |
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protected: |
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bool IOKToNetwork(const char* sdlName, UInt32* synchFlags) const; |
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public: |
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plSynchedObject(); |
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virtual ~plSynchedObject(); |
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CLASSNAME_REGISTER( plSynchedObject ); |
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GETINTERFACE_ANY( plSynchedObject, hsKeyedObject); |
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virtual hsBool MsgReceive(plMessage* msg); |
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// getters |
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int GetSynchFlags() const { return fSynchFlags; } |
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plNetGroupId GetNetGroup() const { return fNetGroup; }; |
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plNetGroupId GetEffectiveNetGroup() const; |
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// setters |
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void SetSynchFlagsBit(UInt32 f) { fSynchFlags |= f; } |
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virtual void SetNetGroupConstant(plNetGroupId netGroup); |
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virtual void SetNetGroup(plNetGroupId netGroup) { fNetGroup = netGroup; } |
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plNetGroupId SelectNetGroup(plKey groupKey); |
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virtual hsBool DirtySynchState(const char* sdlName, UInt32 sendFlags); |
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void SendSDLStateMsg(const char* SDLStateName, UInt32 synchFlags); // don't use, only for net code |
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void ClearSynchFlagsBit(UInt32 f) { fSynchFlags &= ~f; } |
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// static |
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static hsBool GetSynchDisabled() { return fSynchStateStack.size() ? fSynchStateStack.back() : true; } |
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static void PushSynchDisabled(hsBool b) { fSynchStateStack.push_back(b); } |
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static hsBool PopSynchDisabled(); |
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static plSynchedObject* GetStaticSynchedObject() { return fStaticSynchedObj; } |
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static Int32 GetNumDirtyStates() { return fDirtyStates.size(); } |
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static plSynchedObject::StateDefn* GetDirtyState(Int32 i) { return &fDirtyStates[i]; } |
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static void ClearDirtyState(std::vector<StateDefn>& carryOver) { fDirtyStates=carryOver; } |
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// IO |
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// void SendCreationMsg(double secs); |
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// void SendDestructionMsg(double secs) ; |
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virtual void Read(hsStream* s, hsResMgr* mgr); |
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virtual void Write(hsStream* s, hsResMgr* mgr); |
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int IsLocallyOwned() const; // returns yes/no/maybe |
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// disable net synching only |
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bool IsNetSynched() const { return (fSynchFlags & kDontSynchGameMessages)==0; } |
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void SetNetSynched(bool b) { if (!b) fSynchFlags |= kDontSynchGameMessages; else fSynchFlags &= ~kDontSynchGameMessages; } |
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// disable net synching AND persisting |
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bool IsLocalOnly() const { return (fSynchFlags & kLocalOnly)==0; } |
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void SetLocalOnly(bool b) { if (b) fSynchFlags |= kLocalOnly; else fSynchFlags &= ~kLocalOnly; } |
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// disable particular types of persistence |
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void AddToSDLExcludeList(const char*); |
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void RemoveFromSDLExcludeList(const char*); |
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bool IsInSDLExcludeList(const char*) const; |
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// make volatile particular types of state |
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void AddToSDLVolatileList(const char*); |
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void RemoveFromSDLVolatileList(const char*); |
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bool IsInSDLVolatileList(const char*) const; |
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// |
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// synched value stuff, currently unused |
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// current size is 16 + numValue bytes*2 + numFriends*4 bytes |
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// |
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#ifdef USE_SYNCHED_VALUES |
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public: |
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typedef UInt16 AddrOffsetType; |
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typedef UInt8 NumSynchedValuesType; |
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typedef UInt16 FlagsType; |
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friend class plSynchedValueBase; |
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private: |
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AddrOffsetType* fSynchedValueAddrOffsets; // represent dwords offsets |
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NumSynchedValuesType fNumSynchedValues; |
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// array of friends |
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plSynchedValueBase** fSynchedValueFriends; |
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NumSynchedValuesType fNumSynchedValueFriends; |
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// dirty callback notifiers |
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std::vector<plDirtyNotifier*> fDirtyNotifiers; |
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void IAppendSynchedValueAddrOffset(AddrOffsetType synchedValueAddrOffset); |
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void IAppendSynchedValueFriend(plSynchedValueBase* v); |
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plSynchedValueBase* IGetSynchedValue(NumSynchedValuesType i) const |
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{ return (plSynchedValueBase*)((Int32)this + (fSynchedValueAddrOffsets[i]<<2)); } |
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plSynchedValueBase* IGetSynchedValueFriend(NumSynchedValuesType i) const |
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{ return fSynchedValueFriends[i]; } |
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public: |
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Int32 GetNumSynchedValues() const { return fNumSynchedValues+fNumSynchedValueFriends; } |
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plSynchedValueBase* GetSynchedValue(int i) const; |
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UInt8 RegisterSynchedValue(plSynchedValueBase* v); |
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hsBool RemoveSynchedValue(plSynchedValueBase* v); // handles SVFriends too |
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void RegisterSynchedValueFriend(plSynchedValueBase* v); |
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#endif |
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#ifdef USE_DIRTY_NOTIFIERS |
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// dirty CB notifiers |
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void AddDirtyNotifier(plDirtyNotifier* dn); |
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void RemoveDirtyNotifier(plDirtyNotifier* dn); |
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#endif |
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void CallDirtyNotifiers(); |
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}; |
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// |
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// helper class to set dirty tracking on/off within scope |
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// |
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class plSynchEnabler |
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{ |
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public: |
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plSynchEnabler(hsBool enable) { plSynchedObject::PushSynchDisabled(!enable); } |
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~plSynchEnabler() { plSynchedObject::PopSynchDisabled(); } |
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}; |
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#ifdef USE_DIRTY_NOTIFIERS |
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/////////////////////////////////// |
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// plDirtyNotifier - When a synchedObj |
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// gets dirty, this callback will be called. |
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/////////////////////////////////// |
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class plDirtyNotifier |
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{ |
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protected: |
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plKey fSynchedObjKey; |
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void* fUserData; |
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public: |
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plDirtyNotifier() : fSynchedObjKey(nil),fUserData(nil) {} |
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virtual ~plDirtyNotifier() |
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{ |
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if (fSynchedObjKey) |
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{ |
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plSynchedObject* so = plSynchedObject::ConvertNoRef(fSynchedObjKey->ObjectIsLoaded()); |
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if (so) |
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so->RemoveDirtyNotifier(this); |
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} |
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} |
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void SetSynchedObjKey(plKey k) { fSynchedObjKey=k; } // should be set |
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void SetUserData(void* v) { fUserData=v;} // optional |
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plKey GetSynchedObjKey() { return fSynchedObjKey; } |
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void* GetUserData() { return fUserData;} |
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// override |
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virtual void Callback() = 0; |
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}; |
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#endif |
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// |
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// MACROS |
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// |
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#ifdef USE_SYNCHED_VALUES |
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#define SYNCHED_VALUE(type) plSynchedValue<type> |
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#define SYNCHED_TARRAY(type) plSynchedTArray<type> |
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#define SYNCHED_VALUE_FRIEND(type) plSynchedValueFriend<type> |
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#define SYNCHED_TARRAY_FRIEND(type) plSynchedTArrayFriend<type> |
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#else |
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#define SYNCHED_VALUE(type) type |
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#define SYNCHED_TARRAY(type) hsTArray<type> |
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#define SYNCHED_VALUE_FRIEND(type) type |
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#define SYNCHED_TARRAY_FRIEND(type) hsTArray<type> |
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#endif |
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#endif // PLSYNCHOBJ_inc
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