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- // -*- c++ -*-
- // Generated by gtkmmproc -- DO NOT MODIFY!
- #ifndef _GLIBMM_MODULE_H
- #define _GLIBMM_MODULE_H
-
-
- /* $Id: module.hg,v 1.5 2004/04/09 14:49:44 murrayc Exp $ */
-
- /* Copyright (C) 2002 The gtkmm Development Team
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-
- #include <glibmmconfig.h>
- #include <string>
-
- GLIBMM_USING_STD(string)
-
- #ifndef DOXYGEN_SHOULD_SKIP_THIS
- extern "C" { typedef struct _GModule GModule; }
- #endif
-
-
- namespace Glib
- {
-
- /** @addtogroup glibmmEnums Enums and Flags */
-
- /**
- * @ingroup glibmmEnums
- * @par Bitwise operators:
- * <tt>%ModuleFlags operator|(ModuleFlags, ModuleFlags)</tt><br>
- * <tt>%ModuleFlags operator&(ModuleFlags, ModuleFlags)</tt><br>
- * <tt>%ModuleFlags operator^(ModuleFlags, ModuleFlags)</tt><br>
- * <tt>%ModuleFlags operator~(ModuleFlags)</tt><br>
- * <tt>%ModuleFlags& operator|=(ModuleFlags&, ModuleFlags)</tt><br>
- * <tt>%ModuleFlags& operator&=(ModuleFlags&, ModuleFlags)</tt><br>
- * <tt>%ModuleFlags& operator^=(ModuleFlags&, ModuleFlags)</tt><br>
- */
- enum ModuleFlags
- {
- MODULE_BIND_LAZY = 1 << 0,
- MODULE_BIND_LOCAL = 1 << 1,
- MODULE_BIND_MASK = 0x03
- };
-
- /** @ingroup glibmmEnums */
- inline ModuleFlags operator|(ModuleFlags lhs, ModuleFlags rhs)
- { return static_cast<ModuleFlags>(static_cast<unsigned>(lhs) | static_cast<unsigned>(rhs)); }
-
- /** @ingroup glibmmEnums */
- inline ModuleFlags operator&(ModuleFlags lhs, ModuleFlags rhs)
- { return static_cast<ModuleFlags>(static_cast<unsigned>(lhs) & static_cast<unsigned>(rhs)); }
-
- /** @ingroup glibmmEnums */
- inline ModuleFlags operator^(ModuleFlags lhs, ModuleFlags rhs)
- { return static_cast<ModuleFlags>(static_cast<unsigned>(lhs) ^ static_cast<unsigned>(rhs)); }
-
- /** @ingroup glibmmEnums */
- inline ModuleFlags operator~(ModuleFlags flags)
- { return static_cast<ModuleFlags>(~static_cast<unsigned>(flags)); }
-
- /** @ingroup glibmmEnums */
- inline ModuleFlags& operator|=(ModuleFlags& lhs, ModuleFlags rhs)
- { return (lhs = static_cast<ModuleFlags>(static_cast<unsigned>(lhs) | static_cast<unsigned>(rhs))); }
-
- /** @ingroup glibmmEnums */
- inline ModuleFlags& operator&=(ModuleFlags& lhs, ModuleFlags rhs)
- { return (lhs = static_cast<ModuleFlags>(static_cast<unsigned>(lhs) & static_cast<unsigned>(rhs))); }
-
- /** @ingroup glibmmEnums */
- inline ModuleFlags& operator^=(ModuleFlags& lhs, ModuleFlags rhs)
- { return (lhs = static_cast<ModuleFlags>(static_cast<unsigned>(lhs) ^ static_cast<unsigned>(rhs))); }
-
-
- //TODO: Replace get_last_error() with exceptions?
- //Provide operator()?
-
- /** Dynamic Loading of Modules
- * These functions provide a portable way to dynamically load object
- * files (commonly known as 'plug-ins'). The current implementation
- * supports all systems that provide an implementation of dlopen()
- * (e.g. Linux/Sun), as well as HP-UX via its shl_load() mechanism,
- * and Windows platforms via DLLs.
- */
- class Module
- {
- public:
- #ifndef DOXYGEN_SHOULD_SKIP_THIS
- typedef Module CppObjectType;
- typedef GModule BaseObjectType;
- #endif /* DOXYGEN_SHOULD_SKIP_THIS */
-
- private:
-
-
- public:
-
- /** Opens a module.
- *
- * First of all it tries to open file_name as a module. If that
- * fails and file_name has the ".la"-suffix (and is a libtool
- * archive) it tries to open the corresponding module. If that fails
- * and it doesn't have the proper module suffix for the platform
- * (G_MODULE_SUFFIX), this suffix will be appended and the
- * corresponding module will be opended. If that fails and file_name
- * doesn't have the ".la"-suffix, this suffix is appended and
- * it tries to open the corresponding module.
- *
- * Use operator bool() to see whether the operation succeeded. For instance,
- * @code
- * Glib::Module module("plugins/helloworld");
- * if(module)
- * {
- * void* func = 0;
- * bool found = get_symbol("some_function", func);
- * }
- * @endcode
- *
- * @param file_name The library filename to open
- * @param flags Flags to configure the load process
- */
- explicit Module(const std::string& file_name, ModuleFlags flags = ModuleFlags(0));
-
- /** Close a module. The module will be removed from memory, unless
- * <tt>make_resident</tt> has been called.
- */
- virtual ~Module();
-
- /** Check whether the module was found.
- */
- operator bool() const;
-
- /** Checks if modules are supported on the current platform.
- * @returns true if available, false otherwise
- */
-
- static bool get_supported();
-
- /** Ensures that a module will never be unloaded. Any calls to the
- * Glib::Module destructor will not unload the module.
- */
-
- void make_resident();
-
- /** Gets a string describing the last module error.
- * @returns The error string
- */
-
- static std::string get_last_error();
-
- /** Gets a symbol pointer from the module.
- * @param symbol_name The name of the symbol to lookup
- * @param symbol A pointer to set to the symbol
- * @returns True if the symbol was found, false otherwise.
- */
-
- bool get_symbol(const std::string& symbol_name, void*& symbol) const;
-
- /** Get the name of the module.
- * @returns The name of the module
- */
-
- std::string get_name() const;
-
- /** A portable way to build the filename of a module. The
- * platform-specific prefix and suffix are added to the filename, if
- * needed, and the result is added to the directory, using the
- * correct separator character.
- *
- * The directory should specify the directory where the module can
- * be found. It can be an empty string to indicate that the
- * module is in a standard platform-specific directory, though this
- * is not recommended since the wrong module may be found.
- *
- * For example, calling <tt>g_module_build_path()</tt> on a Linux
- * system with a directory of <tt>/lib</tt> and a module_name of
- * "mylibrary" will return <tt>/lib/libmylibrary.so</tt>. On a
- * Windows system, using <tt>\\Windows</tt> as the directory it will
- * return <tt>\\Windows\\mylibrary.dll</tt>.
- *
- * @param directory The directory the module is in
- * @param module_name The name of the module
- * @returns The system-specific filename of the module
- */
- // TODO: add an override which doesn't take a directory
- // TODO: check what happens when directory is ""
-
- static std::string build_path(const std::string& directory, const std::string& module_name);
-
- GModule* gobj() { return gobject_; }
- const GModule* gobj() const { return gobject_; }
-
- protected:
- GModule* gobject_;
-
- private:
- // noncopyable
- Module(const Module&);
- Module& operator=(const Module&);
-
-
- };
-
- } // namespace Glib
-
-
- #endif /* _GLIBMM_MODULE_H */
-
-