118 lines
4.9 KiB
C++
118 lines
4.9 KiB
C++
/****************************************************************************
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Copyright (c) 2007, Radon Labs GmbH
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Copyright (c) 2011-2013,WebJet Business Division,CYOU
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http://www.genesis-3d.com.cn
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#pragma once
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//------------------------------------------------------------------------------
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/**
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@file core/win32/win32singleton.h
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Provides helper macros to implement singleton objects:
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this mean one instance in one thread
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- __DeclareThreadSingleton put this into class declaration. old£º __DeclareSingleton
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- __ImplementThreadSingleton put this into the implemention file. old: __ImplementSingleton
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- __ConstructThreadSingleton put this into the constructor old: __ConstructSingleton
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- __DestructThreadSingleton put this into the destructor old: __DestructSingleton
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this mean one instance in one image
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- __DeclareImageSingleton put this into class declaration. old: __DeclareInterfaceSingleton
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- __ImplementImageSingleton put this into the implemention file. old: __ImplementInterfaceSingleton
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- __ConstructImageInterfaceSingleton put this into the constructor old: __ConstructInterfaceSingleton
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- __DestructImageInterfaceSingleton put this into the destructor old: __DestructInterfaceSingleton
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Get a pointer to a singleton object using the static Instance() method:
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Core::Server* coreServer = Core::Server::Instance();
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*/
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#include "core/types.h"
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#include "threading/ThreadRuntimeInfo.h"
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//------------------------------------------------------------------------------
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#if 0 // old code
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// ·ÏÆú´úÂë
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//#define __DeclareThreadSingleton(type) \
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//public: \
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// ThreadLocal static type * Singleton; \
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// static type * Instance() { n_assert(0 != Singleton); return Singleton; }; \
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// static bool HasInstance() { return 0 != Singleton; }; \
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//private:
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//
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//#define __ImplementThreadSingleton(type) \
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// ThreadLocal type * type::Singleton = 0;
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//
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//#define __DestructThreadSingleton \
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// n_assert(Singleton); Singleton = 0;
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//
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//#define __ConstructThreadSingleton \
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// n_assert(0 == Singleton); Singleton = this;
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#else // new
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#define __DeclareThreadSingleton(type) \
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public: \
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static IndexT MyTlsID; \
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static type * Instance() { Threading::ThreadRunTimeInfo* pInfo = Threading::ThreadRunTimeInfo::GetMyThreadRuntime(); n_assert(pInfo); char* pRef = pInfo->GetInstance(MyTlsID); return (type*)pRef; }; \
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static bool HasInstance() { Threading::ThreadRunTimeInfo* pInfo = Threading::ThreadRunTimeInfo::GetMyThreadRuntime(); if(pInfo) { return pInfo->HasInstance(MyTlsID); } else { return false; } }; \
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private:
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#define __ImplementThreadSingleton(type) \
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IndexT type::MyTlsID = Threading::ThreadRunTimeInfo::GetThreadInstanceID();\
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#define __ConstructThreadSingleton \
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Threading::ThreadRunTimeInfo* pInfo = Threading::ThreadRunTimeInfo::GetMyThreadRuntime(); \
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n_assert(pInfo); \
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pInfo->SetInstance( MyTlsID , (char*)this );
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#define __DestructThreadSingleton \
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Threading::ThreadRunTimeInfo* pInfo = Threading::ThreadRunTimeInfo::GetMyThreadRuntime(); \
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n_assert(pInfo); \
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pInfo->SetInstance( MyTlsID , NULL );
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#endif
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//------------------------------------------------------------------------
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#define __DeclareImageSingleton(type) \
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public: \
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static type * Singleton; \
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static type * Instance() { n_assert(0 != Singleton); return Singleton; }; \
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static bool HasInstance() { return 0 != Singleton; }; \
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private:
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#define __ImplementImageSingleton(type) \
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type * type::Singleton = 0;
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#define __ConstructImageSingleton \
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n_assert(0 == Singleton); Singleton = this;
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#define __DestructImageSingleton \
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n_assert(Singleton); Singleton = 0;
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//------------------------------------------------------------------------------
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