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OgreDynLib.cpp

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00001 /*
00002 -----------------------------------------------------------------------------
00003 This source file is part of OGRE
00004     (Object-oriented Graphics Rendering Engine)
00005 For the latest info, see http://www.ogre3d.org/
00006 
00007 Copyright © 2000-2002 The OGRE Team
00008 Also see acknowledgements in Readme.html
00009 
00010 This program is free software; you can redistribute it and/or modify it under
00011 the terms of the GNU Lesser General Public License as published by the Free Software
00012 Foundation; either version 2 of the License, or (at your option) any later
00013 version.
00014 
00015 This program is distributed in the hope that it will be useful, but WITHOUT
00016 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
00017 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
00018 
00019 You should have received a copy of the GNU Lesser General Public License along with
00020 this program; if not, write to the Free Software Foundation, Inc., 59 Temple
00021 Place - Suite 330, Boston, MA 02111-1307, USA, or go to
00022 http://www.gnu.org/copyleft/lesser.txt.
00023 -----------------------------------------------------------------------------
00024 */
00025 #include "OgreStableHeaders.h"
00026 
00027 #include "OgreDynLib.h"
00028 
00029 #include "OgreException.h"
00030 #include "OgreLogManager.h"
00031 
00032 #if OGRE_PLATFORM == PLATFORM_WIN32
00033 #   define WIN32_LEAN_AND_MEAN
00034 #   include <windows.h>
00035 #endif
00036 
00037 #if OGRE_PLATFORM == PLATFORM_APPLE
00038 #   include "macPlugins.h"
00039 #endif
00040 
00041 
00042 namespace Ogre {
00043 
00044     //-----------------------------------------------------------------------
00045     DynLib::DynLib( const String& name )
00046     {
00047         OgreGuard("DynLib::DynLib");
00048 
00049         mName = name;
00050 #if OGRE_PLATFORM == PLATFORM_LINUX
00051         // dlopen() does not add .so to the filename, like windows does for .dll
00052         if (mName.substr(mName.length() - 3, 3) != ".so")
00053             mName += ".so";
00054 #endif
00055         mIsLoaded = false;
00056         m_hInst = NULL;
00057 
00058         OgreUnguard();
00059     }
00060 
00061     //-----------------------------------------------------------------------
00062     DynLib::~DynLib()
00063     {
00064         if( mIsLoaded )
00065             unload();
00066     }
00067 
00068     //-----------------------------------------------------------------------
00069     void DynLib::load()
00070     {
00071         OgreGuard("DynLib::load");
00072 
00073         // Log library load
00074         LogManager::getSingleton().logMessage("Loading library " + mName);
00075 
00076         m_hInst = (DYNLIB_HANDLE)DYNLIB_LOAD( mName.c_str() );
00077 
00078         if( !m_hInst )
00079             Except(
00080                 Exception::ERR_INTERNAL_ERROR, 
00081                 "Could not load dynamic library " + mName + 
00082                 ".  System Error: " + DYNLIB_ERROR(),
00083                 "DynLib::load" );
00084 
00085         mIsLoaded = true;
00086 
00087         OgreUnguard();
00088     }
00089 
00090     //-----------------------------------------------------------------------
00091     void DynLib::unload()
00092     {
00093         OgreGuard("DynLib::unload");
00094 
00095         // Log library unload
00096         if (mIsLoaded)
00097         {
00098             LogManager::getSingleton().logMessage("Unloading library " + mName);
00099 
00100             if( DYNLIB_UNLOAD( m_hInst ) )
00101                 Except(
00102                     Exception::ERR_INTERNAL_ERROR, 
00103                     "Could not unload dynamic library " + mName +
00104                     ".  System Error: " + DYNLIB_ERROR(),
00105                     "DynLib::unload");
00106         }
00107         mIsLoaded = false;
00108 
00109         OgreUnguard();
00110     }
00111 
00112     //-----------------------------------------------------------------------
00113     void* DynLib::getSymbol( const String& strName ) const throw()
00114     {
00115         return DYNLIB_GETSYM( m_hInst, strName.c_str() );
00116     }
00117 }

Copyright © 2002-2003 by The OGRE Team
Last modified Fri May 14 23:22:07 2004