mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2024-12-25 15:06:14 +01:00
83 lines
2.1 KiB
C
83 lines
2.1 KiB
C
/* 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 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., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
#include <dl.h>
|
|
|
|
|
|
/* some flags are missing on some systems, so we provide
|
|
* harmless defaults.
|
|
*/
|
|
#ifndef DYNAMIC_PATH
|
|
#define DYNAMIC_PATH 0
|
|
#endif /* DYNAMIC_PATH */
|
|
|
|
/* should we have BIND_TOGETHER here as well? */
|
|
#define CONST_BIND_FLAGS (BIND_NONFATAL | BIND_VERBOSE)
|
|
|
|
|
|
/* --- functions --- */
|
|
static gpointer
|
|
_g_module_open (const gchar *file_name,
|
|
gboolean bind_lazy)
|
|
{
|
|
gpointer handle;
|
|
|
|
handle = shl_load (file_name, CONST_BIND_FLAGS | (bind_lazy ? BIND_DEFERRED : BIND_IMMEDIATE), 0);
|
|
if (!handle)
|
|
g_module_set_error (g_strerror (errno));
|
|
|
|
return handle;
|
|
}
|
|
|
|
static gpointer
|
|
_g_module_self (void)
|
|
{
|
|
gpointer handle;
|
|
|
|
handle = PROG_HANDLE;
|
|
if (!handle)
|
|
g_module_set_error (g_strerror (errno));
|
|
|
|
return handle;
|
|
}
|
|
|
|
static void
|
|
_g_module_close (gpointer *handle_p,
|
|
gboolean is_unref)
|
|
{
|
|
if (!is_unref)
|
|
{
|
|
if (shl_unload (*handle_p) != 0)
|
|
g_module_set_error (g_strerror (errno));
|
|
}
|
|
}
|
|
|
|
static gpointer
|
|
_g_module_symbol (gpointer *handle_p,
|
|
const gchar *symbol_name)
|
|
{
|
|
gpointer p = NULL;
|
|
|
|
/* should we restrict lookups to TYPE_PROCEDURE?
|
|
*/
|
|
if (shl_findsym (handle_p, symbol_name, TYPE_UNDEFINED, &p) != 0 || p == NULL)
|
|
g_module_set_error (g_strerror (errno));
|
|
|
|
return p;
|
|
}
|