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/* GMODULE - GLIB wrapper code for dynamic module loading
* Copyright (C) 1998 Tim Janik
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GLib Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GLib Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GLib at ftp://ftp.gtk.org/pub/gtk/.
*/
#ifndef __GMODULE_H__
#define __GMODULE_H__
#include <glib.h>
G_BEGIN_DECLS
/* exporting and importing functions, this is special cased
* to feature Windows dll stubs.
*/
#define G_MODULE_IMPORT extern
#ifdef G_PLATFORM_WIN32
# define G_MODULE_EXPORT __declspec(dllexport)
#else /* !G_PLATFORM_WIN32 */
# define G_MODULE_EXPORT
#endif /* !G_PLATFORM_WIN32 */
typedef enum
{
G_MODULE_BIND_LAZY = 1 << 0,
G_MODULE_BIND_LOCAL = 1 << 1,
G_MODULE_BIND_MASK = 0x03
} GModuleFlags;
typedef struct _GModule GModule;
typedef const gchar* (*GModuleCheckInit) (GModule *module);
typedef void (*GModuleUnload) (GModule *module);
/* return TRUE if dynamic module loading is supported */
gboolean g_module_supported (void) G_GNUC_CONST;
/* open a module `file_name' and return handle, which is NULL on error */
GModule* g_module_open (const gchar *file_name,
GModuleFlags flags);
/* close a previously opened module, returns TRUE on success */
gboolean g_module_close (GModule *module);
/* make a module resident so g_module_close on it will be ignored */
void g_module_make_resident (GModule *module);
/* query the last module error as a string */
G_CONST_RETURN gchar* g_module_error (void);
/* retrieve a symbol pointer from `module', returns TRUE on success */
gboolean g_module_symbol (GModule *module,
const gchar *symbol_name,
gpointer *symbol);
/* retrieve the file name from an existing module */
G_CONST_RETURN gchar* g_module_name (GModule *module);
/* Build the actual file name containing a module. `directory' is the
* directory where the module file is supposed to be, or NULL or empty
* in which case it should either be in the current directory or, on
* some operating systems, in some standard place, for instance on the
* PATH. Hence, to be absoultely sure to get the correct module,
* always pass in a directory. The file name consists of the directory,
* if supplied, and `module_name' suitably decorated accoring to
* the operating system's conventions (for instance lib*.so or *.dll).
*
* No checks are made that the file exists, or is of correct type.
*/
gchar* g_module_build_path (const gchar *directory,
const gchar *module_name);
G_END_DECLS
#endif /* __GMODULE_H__ */
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