text: //
  // SharedLibrary_WIN32.cpp
  //
  // $Id$
  //
  // Library: Foundation
  // Package: SharedLibrary
  // Module:  SharedLibrary
  //
  // 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.
  //
  
  
  #include "Poco/SharedLibrary_WIN32.h"
  #include "Poco/UnWindows.h"
  
  
  namespace Poco {
  
  
  FastMutex SharedLibraryImpl::_mutex;
  
  
  SharedLibraryImpl::SharedLibraryImpl()
  {
  	_handle = 0;
  }
  
  
  SharedLibraryImpl::~SharedLibraryImpl()
  {
  }
  
  
  void SharedLibraryImpl::loadImpl(const std::string& path)
  {
  	FastMutex::ScopedLock lock(_mutex);
  
  	if (_handle) throw LibraryAlreadyLoadedException(_path);
  	_handle = LoadLibraryA(path.c_str());
  	if (!_handle) throw LibraryLoadException(path);
  	_path = path;
  }
  
  
  void SharedLibraryImpl::unloadImpl()
  {
  	FastMutex::ScopedLock lock(_mutex);
  
  	if (_handle)
  	{
  		FreeLibrary((HMODULE) _handle);
  		_handle = 0;
  	}
  	_path.clear();
  }
  
  
  bool SharedLibraryImpl::isLoadedImpl() const
  {
  	return _handle != 0; 
  }
  
  
  void* SharedLibraryImpl::findSymbolImpl(const std::string& name)
  {
  	FastMutex::ScopedLock lock(_mutex);
  
  	if (_handle)
  	{
  		return (void*) GetProcAddress((HMODULE) _handle, name.c_str());
  	}
  	else return 0;
  }
  
  
  const std::string& SharedLibraryImpl::getPathImpl() const
  {
  	return _path;
  }
  
  
  std::string SharedLibraryImpl::suffixImpl()
  {
  #if defined(_DEBUG)
  	return "d.dll";
  #else
  	return ".dll";
  #endif
  }
  
  
  } // namespace Poco
  