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, see <http://www.gnu.org/licenses/>.
22 * Modified by the GLib Team and others 1997-2000. See the AUTHORS
23 * file for a list of people on the GLib Team. See the ChangeLog
24 * files for a list of changes. These files are distributed with
25 * GLib at ftp://ftp.gtk.org/pub/gtk/.
39 #include <sys/cygwin.h>
43 set_error (const gchar *format,
51 error = g_win32_error_message (GetLastError ());
53 va_start (args, format);
54 detail = g_strdup_vprintf (format, args);
57 message = g_strconcat (detail, error, NULL);
59 g_module_set_error (message);
65 /* --- functions --- */
67 _g_module_open (const gchar *file_name,
76 cygwin_conv_to_win32_path(file_name, tmp);
79 wfilename = g_utf8_to_utf16 (file_name, -1, NULL, NULL, NULL);
81 handle = LoadLibraryW (wfilename);
85 set_error ("'%s': ", file_name);
91 static gpointer null_module_handle = &dummy;
96 return null_module_handle;
100 _g_module_close (gpointer handle,
103 if (handle != null_module_handle)
104 if (!FreeLibrary (handle))
109 find_in_any_module_using_toolhelp (const gchar *symbol_name)
116 if ((snapshot = CreateToolhelp32Snapshot (TH32CS_SNAPMODULE, 0)) == (HANDLE) -1)
119 me32.dwSize = sizeof (me32);
121 if (Module32First (snapshot, &me32))
124 if ((p = GetProcAddress (me32.hModule, symbol_name)) != NULL)
126 } while (Module32Next (snapshot, &me32));
129 CloseHandle (snapshot);
135 find_in_any_module (const gchar *symbol_name)
139 if ((result = find_in_any_module_using_toolhelp (symbol_name)) == NULL)
146 _g_module_symbol (gpointer handle,
147 const gchar *symbol_name)
151 if (handle == null_module_handle)
153 if ((p = GetProcAddress (GetModuleHandle (NULL), symbol_name)) == NULL)
154 p = find_in_any_module (symbol_name);
157 p = GetProcAddress (handle, symbol_name);
166 _g_module_build_path (const gchar *directory,
167 const gchar *module_name)
171 k = strlen (module_name);
173 if (directory && *directory)
174 if (k > 4 && g_ascii_strcasecmp (module_name + k - 4, ".dll") == 0)
175 return g_strconcat (directory, G_DIR_SEPARATOR_S, module_name, NULL);
177 else if (strncmp (module_name, "lib", 3) == 0 || strncmp (module_name, "cyg", 3) == 0)
178 return g_strconcat (directory, G_DIR_SEPARATOR_S, module_name, ".dll", NULL);
180 return g_strconcat (directory, G_DIR_SEPARATOR_S, "cyg", module_name, ".dll", NULL);
182 else if (strncmp (module_name, "lib", 3) == 0)
183 return g_strconcat (directory, G_DIR_SEPARATOR_S, module_name, ".dll", NULL);
185 return g_strconcat (directory, G_DIR_SEPARATOR_S, "lib", module_name, ".dll", NULL);
187 else if (k > 4 && g_ascii_strcasecmp (module_name + k - 4, ".dll") == 0)
188 return g_strdup (module_name);
190 else if (strncmp (module_name, "lib", 3) == 0 || strncmp (module_name, "cyg", 3) == 0)
191 return g_strconcat (module_name, ".dll", NULL);
193 return g_strconcat ("cyg", module_name, ".dll", NULL);
195 else if (strncmp (module_name, "lib", 3) == 0)
196 return g_strconcat (module_name, ".dll", NULL);
198 return g_strconcat ("lib", module_name, ".dll", NULL);