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lib-of-vs-libs-Poco-include-Poco-ClassLibrary.h / h



  //
  // ClassLibrary.h
  //
  // Id: //poco/1.3/Foundation/include/Poco/ClassLibrary.h#3 
  //
  // Library: Foundation
  // Package: SharedLibrary
  // Module:  ClassLoader
  //
  // Definitions for class libraries.
  //
  // Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
  // and Contributors.
  //
  // Permission is hereby granted, free of charge, to any person or organization
  // obtaining a copy of the software and accompanying documentation covered by
  // this license (the "Software") to use, reproduce, display, distribute,
  // execute, and transmit the Software, and to prepare derivative works of the
  // Software, and to permit third-parties to whom the Software is furnished to
  // do so, all subject to the following:
  // 
  // The copyright notices in the Software and this entire statement, including
  // the above license grant, this restriction and the following disclaimer,
  // must be included in all copies of the Software, in whole or in part, and
  // all derivative works of the Software, unless such copies or derivative
  // works are solely in the form of machine-executable object code generated by
  // a source language processor.
  // 
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
  // SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
  // FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
  // ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  // DEALINGS IN THE SOFTWARE.
  //
  
  ifndef Foundation_ClassLibrary_INCLUDED
  define Foundation_ClassLibrary_INCLUDED
  
  include "Poco/Foundation.h"
  include "Poco/Manifest.h"
  include <typeinfo>
  
  if defined(_WIN32)
          #define POCO_LIBRARY_API __declspec(dllexport)
  else
          #define POCO_LIBRARY_API
  endif
  
  //
  // the entry points for every class library
  //
  extern "C"
  {
          bool POCO_LIBRARY_API pocoBuildManifest(Poco::ManifestBase* pManifest);
          void POCO_LIBRARY_API pocoInitializeLibrary();
          void POCO_LIBRARY_API pocoUninitializeLibrary();
  } 
  
  //
  // additional support for named manifests
  //
  define POCO_DECLARE_NAMED_MANIFEST(name) \
  extern "C"        \
  {                        \
          bool POCO_LIBRARY_API POCO_JOIN(pocoBuildManifest, name)(Poco::ManifestBase* pManifest); \
  }
  
  //
  // Macros to automatically implement pocoBuildManifest
  //
  // usage:
  //
  // POCO_BEGIN_MANIFEST(MyBaseClass)
  //     POCO_EXPORT_CLASS(MyFirstClass)
  //     POCO_EXPORT_CLASS(MySecondClass)
  //     ...
  // POCO_END_MANIFEST
  //
  define POCO_BEGIN_MANIFEST_IMPL(fnName, base) \
          bool fnName(Poco::ManifestBase* pManifest_)                                                                                \
          {                                                                                                                                                                \
                  typedef base _Base;                                                                                                                        \
                  typedef Poco::Manifest<_Base> _Manifest;                                                                        \
                  std::string requiredType(typeid(_Manifest).name());                                                        \
                  std::string actualType(pManifest_->className());                                                        \
                  if (requiredType == actualType)                                                                                                \
                  {                                                                                                                                                        \
                          Poco::Manifest<_Base>* pManifest = static_cast<_Manifest*>(pManifest_);
  
  define POCO_BEGIN_MANIFEST(base) \
          POCO_BEGIN_MANIFEST_IMPL(pocoBuildManifest, base)
  
  define POCO_BEGIN_NAMED_MANIFEST(name, base)        \
          POCO_DECLARE_NAMED_MANIFEST(name)                        \
          POCO_BEGIN_MANIFEST_IMPL(POCO_JOIN(pocoBuildManifest, name), base)
  
  define POCO_END_MANIFEST \
                          return true;        \
                  }                                        \
                  else return false;        \
          }
  
  define POCO_EXPORT_CLASS(cls) \
      pManifest->insert(new Poco::MetaObject<cls, _Base>(#cls));
  
  define POCO_EXPORT_SINGLETON(cls) \
          pManifest->insert(new Poco::MetaSingleton<cls, _Base>(#cls));
  
  endif // Foundation_ClassLibrary_INCLUDED
  


(C) Æliens 04/09/2009

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