X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=include%2Fdynamic.h;h=905eb479e9ed02efe5eabb21f5458ea44b21d30d;hb=9aadc251e9910998fbbe5438b461958a261eae1d;hp=0382324ce435774e1cfe3eebff1666495033507e;hpb=e81bad456aa55af8b0cb31d2ffeb0672ff0c6bbf;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/include/dynamic.h b/include/dynamic.h index 0382324ce..905eb479e 100644 --- a/include/dynamic.h +++ b/include/dynamic.h @@ -1,105 +1,64 @@ -#ifndef __DLL_H -#define __DLL_H - -// -// class DLLManager is the simple ELF C++ Library manager. -// -// It tries to dynamically load the specified shared library -// when it is construted. -// -// You should call LastError() before doing anything. If it -// returns NULL there is no error. -// +/* + * InspIRCd -- Internet Relay Chat Daemon + * + * Copyright (C) 2009 Daniel De Graaf + * Copyright (C) 2007, 2009 Dennis Friis + * Copyright (C) 2007 Oliver Lupton + * Copyright (C) 2003-2004, 2007 Craig Edwards + * + * This file is part of InspIRCd. InspIRCd 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, version 2. + * + * 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, see . + */ + + +#pragma once + +/** The DLLManager class is able to load a module file by filename, + * and locate its init_module symbol. + */ +class CoreExport DLLManager : public classbase +{ + protected: + /** The last error string + */ + std::string err; + /** Sets the last error string + */ + void RetrieveLastError(); -class DLLManager -{ public: - DLLManager( const char *fname ); + /** This constructor loads the module using dlopen() + * @param fname The filename to load. This should be within + * the modules dir. + */ + DLLManager(const char *fname); virtual ~DLLManager(); - - bool GetSymbol( void **, const char *sym_name ); - - const char *LastError() + /** Get the last error from dlopen() or dlsym(). + */ + const std::string& LastError() { return err; } - - protected: - void *h; - const char *err; -}; - - -// -// class DLLFactoryBase is the base class used for the DLLFactory -// template class. -// -// It inherits from the DLLManager class and must be constructed with -// the file name of the shared library and the function name within that -// library which will create the desired C++ factory class. -// If you do not provide func_name to the constructor, it defaults to -// the undecorated "C" symbol "factory0" -// -// factory_func will be set to a pointer to the requested factory creator -// function. If there was an error linking to the shared library, -// factory_func will be 0. -// -// You can call 'LastError()' to find the error message that occurred. -// -// - -class DLLFactoryBase : public DLLManager -{ - public: - DLLFactoryBase(const char *fname, const char *func_name = 0); - virtual ~DLLFactoryBase(); - void * (*factory_func)(void); -}; + /** The module library handle. + */ + void *h; -// -// The DLLFactory template class inherits from DLLFactoryBase. -// The constructor takes the file name of the shared library -// and the undecorated "C" symbol name of the factory creator -// function. The factory creator function in your shared library -// MUST either return a pointer to an object that is a subclass -// of 'T' or it must return 0. -// -// If everything is cool, then 'factory' will point to the -// requested factory class. If not, it will be 0. -// -// Since the DLLFactory template ultimately inherits DLLManager, -// you can call LastError() to get any error code information -// -// The created factory is OWNED by the DLLFactory class. -// The created factory will get deleted when the DLLFactory class -// is deleted, because the DLL will get unloaded as well. -// - -template class DLLFactory : public DLLFactoryBase -{ - public: - DLLFactory(const char *fname, const char *func_name=0) : DLLFactoryBase(fname,func_name) - { - if (factory_func) - factory = (T*)factory_func(); - else - factory = 0; - } - - ~DLLFactory() - { - delete factory; - } + /** Return a module by calling the init function + */ + Module* CallInit(); - T *factory; + /** Get detailed version information from the module file */ + std::string GetVersion(); }; - - - - - - -#endif