X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=include%2Fdynamic.h;h=2aff7a29ff5a5dbdac02befd6add3c2af5a5ee28;hb=635cb9d65f6d7f6758ae8ed874da00c8d94b6e39;hp=47963b828d114ba9bd054deabd713d9afe46e51d;hpb=75e19b2ff35d6b42fe83e7200d3675d81e43ecc1;p=user%2Fhenk%2Fcode%2Finspircd.git

diff --git a/include/dynamic.h b/include/dynamic.h
index 47963b828..2aff7a29f 100644
--- a/include/dynamic.h
+++ b/include/dynamic.h
@@ -1,89 +1,88 @@
-/*       +------------------------------------+
- *       | Inspire Internet Relay Chat Daemon |
- *       +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
  *
- *  Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
- *                       E-mail:
- *                <brain@chatspike.net>
- *           	  <Craig@chatspike.net>
- *     
- * Written by Craig Edwards, Craig McLure, and others.
- * This program is free but copyrighted software; see
- *            the file COPYING for details.
+ *   Copyright (C) 2013, 2019-2020 Sadie Powell <sadie@witchery.services>
+ *   Copyright (C) 2012 Robby <robby@chatbelgie.be>
+ *   Copyright (C) 2012 ChrisTX <xpipe@hotmail.de>
+ *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ *   Copyright (C) 2007 Oliver Lupton <om@inspircd.org>
+ *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ *   Copyright (C) 2006 Craig Edwards <brain@inspircd.org>
  *
- * ---------------------------------------------------
+ * 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 <http://www.gnu.org/licenses/>.
  */
 
 
-#ifndef __DLL_H
-#define __DLL_H
-
-typedef void * (initfunc) (void);
-
-#include "inspircd_config.h"
+#pragma once
 
-class DLLManager
+/** The DLLManager class is able to load a module file by filename,
+ * and locate its init_module symbol.
+ */
+class CoreExport DLLManager : public classbase
 {
- public:
-	DLLManager( const char *fname );
-	virtual ~DLLManager();
-
+ private:
+	/** The last error string. */
+	std::string err;
 
-#ifdef STATIC_LINK
-	bool GetSymbol( initfunc* &v, const char *sym_name );
+	/** The module library handle. */
+#ifdef _WIN32
+	HMODULE lib;
 #else
-	bool GetSymbol( void **, const char *sym_name );
+	void* lib;
 #endif
 
-	const char *LastError() 
-	{
-		 return err;
-	}
-	
- protected:
-	void *h;
-	char *err;
-#ifdef STATIC_LINK
-	char staticname[1024];
-#endif
-};
-
-
-class DLLFactoryBase : public DLLManager
-{
- public:
-	DLLFactoryBase(const char *fname, const char *func_name = 0);
-	virtual ~DLLFactoryBase();
-#ifdef STATIC_LINK
-	initfunc *factory_func;
-#else
-	void * (*factory_func)(void);	
-#endif
-};
+	/** The filename of the module library. */
+	const std::string libname;
 
+	/** Sets the last error string. */
+	void RetrieveLastError();
 
-template <class T> 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()
+	/** Attempts to load the specified module.
+	 * @param name The name of the library to load.
+	 */
+	DLLManager(const std::string& name);
+
+	/** Unloads the module if one was loaded. */
+	~DLLManager();
+
+	/** Attempts to create a new module instance from this shared library.
+	 * @return Either a new instance of the Module class or NULL on error.
+	 */
+	Module* CallInit();
+
+	/** Retrieves the value of the specified symbol.
+	 * @param name The name of the symbol to retrieve.
+	 * @return Either the value of the specified symbol or or NULL if it does not exist.
+	 */
+	void* GetSymbol(const char* name) const;
+
+	/** Retrieves the value of the specified symbol and casts it to the requested type.
+	 * @param name The name of the symbol to retrieve.
+	 * @return Either the value of the specified symbol or or NULL if it does not exist.
+	 */
+	template <typename TReturn>
+	TReturn* GetSymbol(const char* name) const
 	{
-		delete factory;
+		return static_cast<TReturn*>(GetSymbol(name));
 	}
 
-	T *factory;
-};
-
-
-
+	/** Retrieves the module version from the dynamic library. */
+	const char* GetVersion() const { return GetSymbol<const char>(MODULE_STR_VERSION); }
 
+	/** Retrieves the last error which occurred or an empty string if no errors have occurred. */
+	const std::string& LastError() const { return err; }
 
-
-#endif
+	/** Retrieves the filename of the underlying shared library. */
+	const std::string& LibraryName() const { return libname; }
+};