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123 lines
3.9 KiB
C++
123 lines
3.9 KiB
C++
//
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// SharedLibrary.h
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//
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// $Id: //poco/Main/Foundation/include/Poco/SharedLibrary.h#3 $
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//
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// Library: Foundation
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// Package: SharedLibrary
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// Module: SharedLibrary
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//
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// Definition of the SharedLibrary class.
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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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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
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// execute, and transmit the Software, and to prepare derivative works of the
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
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//
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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//
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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, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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#ifndef Foundation_SharedLibrary_INCLUDED
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#define Foundation_SharedLibrary_INCLUDED
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#include "Poco/Foundation.h"
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#if defined(hpux) || defined(_hpux)
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#include "Poco/SharedLibrary_HPUX.h"
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#elif defined(POCO_OS_FAMILY_UNIX)
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#include "Poco/SharedLibrary_UNIX.h"
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#elif defined(POCO_OS_FAMILY_WINDOWS) && defined(POCO_WIN32_UTF8)
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#include "Poco/SharedLibrary_WIN32U.h"
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#elif defined(POCO_OS_FAMILY_WINDOWS)
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#include "Poco/SharedLibrary_WIN32.h"
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#elif defined(POCO_OS_FAMILY_VMS)
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#include "Poco/SharedLibrary_VMS.h"
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#endif
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namespace Poco {
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class Foundation_API SharedLibrary: private SharedLibraryImpl
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/// The SharedLibrary class dynamically
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/// loads shared libraries at run-time.
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{
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public:
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SharedLibrary();
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/// Creates a SharedLibrary object.
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SharedLibrary(const std::string& path);
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/// Creates a SharedLibrary object and loads a library
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/// from the given path.
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virtual ~SharedLibrary();
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/// Destroys the SharedLibrary. The actual library
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/// remains loaded.
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void load(const std::string& path);
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/// Loads a shared library from the given path.
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/// Throws a LibraryAlreadyLoadedException if
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/// a library has already been loaded.
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/// Throws a LibraryLoadException if the library
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/// cannot be loaded.
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void unload();
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/// Unloads a shared library.
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bool isLoaded() const;
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/// Returns true iff a library has been loaded.
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bool hasSymbol(const std::string& name);
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/// Returns true iff the loaded library contains
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/// a symbol with the given name.
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void* getSymbol(const std::string& name);
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/// Returns the address of the symbol with
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/// the given name. For functions, this
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/// is the entry point of the function.
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/// Throws a NotFoundException if the symbol
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/// does not exist.
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const std::string& getPath() const;
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/// Returns the path of the library, as
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/// specified in a call to load() or the
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/// constructor.
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static std::string suffix();
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/// Returns the platform-specific filename suffix
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/// for shared libraries (including the period).
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/// In debug mode, the suffix also includes a
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/// "d" to specify the debug version of a library.
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private:
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SharedLibrary(const SharedLibrary&);
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SharedLibrary& operator = (const SharedLibrary&);
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};
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} // namespace Poco
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#endif // Foundation_SharedLibrary_INCLUDED
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