/* * Copyright (c) 2000-2001,2003-2004 Apple Computer, Inc. All Rights Reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ // // modloader.h - CSSM module loader interface // // This is a thin abstraction of plugin module loading/handling for CSSM. // The resulting module ("Plugin") notion is specific to CSSM plugin modules. // This implementation uses MacOS X bundles. // #ifndef _H_MODLOADER #define _H_MODLOADER #include <exception> #include <security_utilities/osxcode.h> #include "cssmint.h" #include <map> #include <string> namespace Security { // // A collection of canonical plugin entry points (aka CSSM module SPI) // struct PluginFunctions { CSSM_SPI_ModuleLoadFunction *load; CSSM_SPI_ModuleUnloadFunction *unload; CSSM_SPI_ModuleAttachFunction *attach; CSSM_SPI_ModuleDetachFunction *detach; }; // // An abstract representation of a loadable plugin. // Note that "loadable" doesn't mean that actual code loading // is necessarily happening, but let's just assume it might. // class Plugin { NOCOPY(Plugin) public: Plugin() { } virtual ~Plugin() { } virtual void load() = 0; virtual void unload() = 0; virtual bool isLoaded() const = 0; virtual CSSM_SPI_ModuleLoadFunction load = 0; virtual CSSM_SPI_ModuleUnloadFunction unload = 0; virtual CSSM_SPI_ModuleAttachFunction attach = 0; virtual CSSM_SPI_ModuleDetachFunction detach = 0; }; // // The supervisor class that manages searching and loading. // class ModuleLoader { NOCOPY(ModuleLoader) public: ModuleLoader(); Plugin *operator () (const string &path); private: // the table of all loaded modules typedef map<string, Plugin *> PluginTable; PluginTable mPlugins; }; } // end namespace Security #endif //_H_MODLOADER