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108 lines
2.4 KiB
C++
108 lines
2.4 KiB
C++
//
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// ClassLibrary.h
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//
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// Library: Foundation
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// Package: SharedLibrary
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// Module: ClassLoader
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//
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// Definitions for class libraries.
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//
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// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#ifndef Foundation_ClassLibrary_INCLUDED
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#define Foundation_ClassLibrary_INCLUDED
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#include "Poco/Foundation.h"
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#include "Poco/Manifest.h"
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#include <typeinfo>
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#if defined(_WIN32)
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#define POCO_LIBRARY_API __declspec(dllexport)
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#elif defined(__GNUC__) && (__GNUC__ >= 4)
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#define POCO_LIBRARY_API __attribute__ ((visibility ("default")))
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#else
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#define POCO_LIBRARY_API
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#endif
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//
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// the entry points for every class library
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//
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extern "C"
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{
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bool POCO_LIBRARY_API pocoBuildManifest(Poco::ManifestBase* pManifest);
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void POCO_LIBRARY_API pocoInitializeLibrary();
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void POCO_LIBRARY_API pocoUninitializeLibrary();
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}
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//
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// additional support for named manifests
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//
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#define POCO_DECLARE_NAMED_MANIFEST(name) \
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extern "C" \
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{ \
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bool POCO_LIBRARY_API POCO_JOIN(pocoBuildManifest, name)(Poco::ManifestBase* pManifest); \
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}
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//
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// Macros to automatically implement pocoBuildManifest
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//
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// usage:
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//
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// POCO_BEGIN_MANIFEST(MyBaseClass)
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// POCO_EXPORT_CLASS(MyFirstClass)
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// POCO_EXPORT_CLASS(MySecondClass)
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// ...
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// POCO_END_MANIFEST
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//
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#define POCO_BEGIN_MANIFEST_IMPL(fnName, base) \
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bool fnName(Poco::ManifestBase* pManifest_) \
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{ \
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typedef base _Base; \
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typedef Poco::Manifest<_Base> _Manifest; \
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std::string requiredType(typeid(_Manifest).name()); \
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std::string actualType(pManifest_->className()); \
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if (requiredType == actualType) \
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{ \
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Poco::Manifest<_Base>* pManifest = static_cast<_Manifest*>(pManifest_);
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#define POCO_BEGIN_MANIFEST(base) \
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POCO_BEGIN_MANIFEST_IMPL(pocoBuildManifest, base)
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#define POCO_BEGIN_NAMED_MANIFEST(name, base) \
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POCO_DECLARE_NAMED_MANIFEST(name) \
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POCO_BEGIN_MANIFEST_IMPL(POCO_JOIN(pocoBuildManifest, name), base)
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#define POCO_END_MANIFEST \
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return true; \
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} \
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else return false; \
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}
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#define POCO_EXPORT_CLASS(cls) \
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pManifest->insert(new Poco::MetaObject<cls, _Base>(#cls));
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#define POCO_EXPORT_INTERFACE(cls, itf) \
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pManifest->insert(new Poco::MetaObject<cls, _Base>(itf));
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#define POCO_EXPORT_SINGLETON(cls) \
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pManifest->insert(new Poco::MetaSingleton<cls, _Base>(#cls));
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#endif // Foundation_ClassLibrary_INCLUDED
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