1 /* GMODULE - GLIB wrapper code for dynamic module loading
2 * Copyright (C) 1998, 2000 Tim Janik
4 * Win32 GMODULE implementation
5 * Copyright (C) 1998 Tor Lillqvist
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 * Boston, MA 02111-1307, USA.
24 * Modified by the GLib Team and others 1997-2000. See the AUTHORS
25 * file for a list of people on the GLib Team. See the ChangeLog
26 * files for a list of changes. These files are distributed with
27 * GLib at ftp://ftp.gtk.org/pub/gtk/.
41 #include <sys/cygwin.h>
45 set_error (const gchar
*format
,
53 error
= g_win32_error_message (GetLastError ());
55 va_start (args
, format
);
56 detail
= g_strdup_vprintf (format
, args
);
59 message
= g_strconcat (detail
, error
, NULL
);
61 g_module_set_error (message
);
67 /* --- functions --- */
69 _g_module_open (const gchar
*file_name
,
78 cygwin_conv_to_win32_path(file_name
, tmp
);
81 wfilename
= g_utf8_to_utf16 (file_name
, -1, NULL
, NULL
, NULL
);
83 handle
= LoadLibraryW (wfilename
);
87 set_error ("`%s': ", file_name
);
93 static gpointer null_module_handle
= &dummy
;
98 return null_module_handle
;
102 _g_module_close (gpointer handle
,
105 if (handle
!= null_module_handle
)
106 if (!FreeLibrary (handle
))
111 find_in_any_module_using_toolhelp (const gchar
*symbol_name
)
118 if ((snapshot
= CreateToolhelp32Snapshot (TH32CS_SNAPMODULE
, 0)) == (HANDLE
) -1)
121 me32
.dwSize
= sizeof (me32
);
123 if (Module32First (snapshot
, &me32
))
126 if ((p
= GetProcAddress (me32
.hModule
, symbol_name
)) != NULL
)
128 } while (Module32Next (snapshot
, &me32
));
131 CloseHandle (snapshot
);
137 find_in_any_module (const gchar
*symbol_name
)
141 if ((result
= find_in_any_module_using_toolhelp (symbol_name
)) == NULL
)
148 _g_module_symbol (gpointer handle
,
149 const gchar
*symbol_name
)
153 if (handle
== null_module_handle
)
155 if ((p
= GetProcAddress (GetModuleHandle (NULL
), symbol_name
)) == NULL
)
156 p
= find_in_any_module (symbol_name
);
159 p
= GetProcAddress (handle
, symbol_name
);
168 _g_module_build_path (const gchar
*directory
,
169 const gchar
*module_name
)
173 k
= strlen (module_name
);
175 if (directory
&& *directory
)
176 if (k
> 4 && g_ascii_strcasecmp (module_name
+ k
- 4, ".dll") == 0)
177 return g_strconcat (directory
, G_DIR_SEPARATOR_S
, module_name
, NULL
);
179 else if (strncmp (module_name
, "lib", 3) == 0 || strncmp (module_name
, "cyg", 3) == 0)
180 return g_strconcat (directory
, G_DIR_SEPARATOR_S
, module_name
, ".dll", NULL
);
182 return g_strconcat (directory
, G_DIR_SEPARATOR_S
, "cyg", module_name
, ".dll", NULL
);
184 else if (strncmp (module_name
, "lib", 3) == 0)
185 return g_strconcat (directory
, G_DIR_SEPARATOR_S
, module_name
, ".dll", NULL
);
187 return g_strconcat (directory
, G_DIR_SEPARATOR_S
, "lib", module_name
, ".dll", NULL
);
189 else if (k
> 4 && g_ascii_strcasecmp (module_name
+ k
- 4, ".dll") == 0)
190 return g_strdup (module_name
);
192 else if (strncmp (module_name
, "lib", 3) == 0 || strncmp (module_name
, "cyg", 3) == 0)
193 return g_strconcat (module_name
, ".dll", NULL
);
195 return g_strconcat ("cyg", module_name
, ".dll", NULL
);
197 else if (strncmp (module_name
, "lib", 3) == 0)
198 return g_strconcat (module_name
, ".dll", NULL
);
200 return g_strconcat ("lib", module_name
, ".dll", NULL
);