uobject: Move source files into the uobject directory.

[upkg.git] / src / uobject / module.c

diff --git a/src/uobject/module.c b/src/uobject/module.c
new file mode 100644 (file)
index 0000000..1872a8d
--- /dev/null
+++ b/src/uobject/module.c
@@ -0,0 +1,106 @@
+/*
+ *  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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <glib-object.h>
+#include <ltdl.h>
+
+#include <uobject/module.h>
+#include <uobject/package.h>
+#include "avl.h"
+
+static unsigned initialized;
+static struct avl_table *package_tree;
+
+static char *str_cpy_lower(char *dst, const char *src)
+{
+       size_t i;
+
+       for (i = 0; src[i]; i++)
+               dst[i] = tolower(src[i]);
+       dst[i] = 0;
+
+       return dst;
+}
+
+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) {
+               package_tree = avl_create(modcmp, NULL, NULL);
+               if (!package_tree) {
+                       fprintf(stderr, "%s: failed to create package tree.\n", __func__);
+                       return -1;
+               }
+
+               g_type_init();
+       }
+
+       initialized++;
+       return 0;
+}
+
+int u_object_module_exit(void)
+{
+       if (--initialized)
+               return 0;
+
+       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_by_name(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);
+}