build: Add uobject/package.h to Makefile.am

[upkg.git] / src / module.c

diff --git a/src/module.c b/src/module.c
index 5edc5e2b891262c005331ea4d853ed6f2313d45a..2eeffc07e30857944e5efe81d08ebbe6b947d10f 100644 (file)
--- a/src/module.c
+++ b/src/module.c
@@ -1,25 +1,61 @@
+/*
+ *  upkg: tool for manipulating Unreal Tournament packages.
+ *  Copyright (C) 2009 Nick Bowler
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
 #include <glib-object.h>
 #include <ltdl.h>
 
-#include "module.h"
+#include <uobject/module.h>
+#include <uobject/package.h>
+#include "avl.h"
 
 static unsigned initialized;
+static struct avl_table *package_tree;
 
-static void dl_print_errors(const char *prefix)
+static char *str_cpy_lower(char *dst, const char *src)
 {
-       const char *err;
-       while (err = lt_dlerror()) {
-               if (prefix) fprintf(stderr, "%s: ", prefix);
-               puts(lt_dlerror());
-       }
+       size_t i;
+
+       for (i = 0; src[i]; i++)
+               dst[i] = tolower(src[i]);
+       dst[i] = 0;
+
+       return dst;
 }
 
-int module_init(void)
+static int modcmp(const void *a, const void *b, void *_data)
+{
+       const GTypeModule *ma = a;
+       const GTypeModule *mb = b;
+
+       return strcmp(ma->name, mb->name);
+}
+
+int u_object_module_init(void)
 {
        if (!initialized) {
-               if (lt_dlinit() != 0) {
-                       dl_print_errors(__func__);
+               package_tree = avl_create(modcmp, NULL, NULL);
+               if (!package_tree) {
+                       fprintf(stderr, "%s: failed to create package tree.\n", __func__);
                        return -1;
                }
 
@@ -30,13 +66,42 @@ int module_init(void)
        return 0;
 }
 
-int module_exit(void)
+int u_object_module_exit(void)
 {
        if (--initialized)
                return 0;
 
-       if (lt_dlexit() != 0) {
-               dl_print_errors(__func__);
-               return -1;
+       avl_destroy(package_tree, NULL);
+
+       return 0;
+}
+
+GType u_object_module_get_class(const char *package, const char *class)
+{
+       char buf[strlen(package) + strlen(class) + 1];
+       GTypeModule search = { .name = str_cpy_lower(buf, package) };
+
+       GTypeModule *mod = avl_find(package_tree, &search);
+       if (!mod) {
+               void **p;
+
+               mod = u_pkg_new(package);
+               if (!mod) {
+                       return 0;
+               }
+
+               p = avl_probe(package_tree, mod);
+               if (!p) {
+                       g_object_unref(mod);
+                       return 0;
+               }
        }
+
+       if (!g_type_module_use(mod))
+               return 0;
+
+       str_cpy_lower(buf+strlen(package), class);
+       buf[0] = toupper(buf[0]);
+       buf[strlen(package)] = toupper(buf[strlen(package)]);
+       return g_type_from_name(buf);
 }