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Diffstat (limited to 'backends/plugins/elf/elf-provider.h')
-rw-r--r-- | backends/plugins/elf/elf-provider.h | 85 |
1 files changed, 84 insertions, 1 deletions
diff --git a/backends/plugins/elf/elf-provider.h b/backends/plugins/elf/elf-provider.h index 5692c8a07b..0309ffcece 100644 --- a/backends/plugins/elf/elf-provider.h +++ b/backends/plugins/elf/elf-provider.h @@ -1 +1,84 @@ -dummy +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * $URL$ + * $Id$ + * + */ + +#ifndef BACKENDS_PLUGINS_ELF_PROVIDER_H +#define BACKENDS_PLUGINS_ELF_PROVIDER_H + +#include "common/scummsys.h" + +#if defined(DYNAMIC_MODULES) && defined(USE_ELF_LOADER) + +#include "backends/plugins/elf/elf-loader.h" + +#include "common/fs.h" + +/** + * ELFPlugin + * + * Objects of this class are returned when the PluginManager calls + * getPlugins() on an ELFPluginProvider. An intermediary class for + * dealing with plugin files, ELFPlugin is responsible for creating/destroying + * a DLObject that handles the opening/loading/unloading of the plugin file whose + * path in the target backend's file system is "_filename". + */ +class ELFPlugin : public DynamicPlugin { +protected: + typedef const char *(*CharFunc)(); + + DLObject *_dlHandle; + Common::String _filename; + void *_dso_handle; + + virtual VoidFunc findSymbol(const char *symbol); + +public: + ELFPlugin(const Common::String &filename) : + _dlHandle(0), + _filename(filename), + _dso_handle(0) { + } + + virtual ~ELFPlugin() { + if (_dlHandle) + unloadPlugin(); + } + + virtual DLObject *makeDLObject() = 0; + + bool loadPlugin(); + void unloadPlugin(); +}; + +class ELFPluginProvider : public FilePluginProvider { +protected: + virtual Plugin *createPlugin(const Common::FSNode &node) const = 0; + + bool isPluginFilename(const Common::FSNode &node) const; +}; + +#endif // defined(DYNAMIC_MODULES) && defined(USE_ELF_LOADER) + +#endif /* BACKENDS_PLUGINS_ELF_PROVIDER_H */ + |