From ca99b617483dd3b59fd42738e810309c4229a538 Mon Sep 17 00:00:00 2001
From: martin-s <martin-s@ffa7fe5e-494d-0410-b361-a75ebd5db220>
Date: Sun, 18 May 2008 10:01:53 +0000
Subject: Fix:Core:Renamed src to navit for cleanup of includes

git-svn-id: http://svn.code.sf.net/p/navit/code/trunk/navit@1059 ffa7fe5e-494d-0410-b361-a75ebd5db220
---
 navit/plugin.c | 200 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 200 insertions(+)
 create mode 100644 navit/plugin.c

(limited to 'navit/plugin.c')

diff --git a/navit/plugin.c b/navit/plugin.c
new file mode 100644
index 00000000..7f523016
--- /dev/null
+++ b/navit/plugin.c
@@ -0,0 +1,200 @@
+#include <glib.h>
+#include <gmodule.h>
+#include "config.h"
+#include "plugin.h"
+#include "file.h"
+#define PLUGIN_C
+#include "plugin.h"
+
+struct plugin {
+	int active;
+	int lazy;
+	char *name;
+	GModule *mod;
+	void (*init)(void);
+};
+
+struct plugins {
+	GHashTable *hash;
+	GList *list;
+};
+
+struct plugin *
+plugin_new(char *plugin)
+{
+	struct plugin *ret;
+	if (! g_module_supported()) {
+		return NULL;
+	}
+	ret=g_new0(struct plugin, 1);
+	ret->name=g_strdup(plugin);
+	return ret;
+	
+}
+
+int
+plugin_load(struct plugin *pl)
+{
+	gpointer init;
+
+	GModule *mod;
+
+	if (pl->mod) {
+		g_warning("can't load '%s', already loaded\n", pl->name);
+		return 0;
+	}
+	mod=g_module_open(pl->name, G_MODULE_BIND_LOCAL | (pl->lazy ? G_MODULE_BIND_LAZY : 0));
+	if (! mod) {
+		g_warning("can't load '%s', Error '%s'\n", pl->name, g_module_error());
+		return 0;
+	}
+	if (!g_module_symbol(mod, "plugin_init", &init)) {
+		g_warning("can't load '%s', plugin_init not found\n", pl->name);
+		g_module_close(mod);
+		return 0;
+	} else {
+		pl->mod=mod;
+		pl->init=init;
+	}
+	return 1;
+}
+
+char *
+plugin_get_name(struct plugin *pl)
+{
+	return pl->name;
+}
+
+int
+plugin_get_active(struct plugin *pl)
+{
+	return pl->active;
+}
+
+void
+plugin_set_active(struct plugin *pl, int active)
+{
+	pl->active=active;
+}
+
+void
+plugin_set_lazy(struct plugin *pl, int lazy)
+{
+	pl->lazy=lazy;
+}
+
+void
+plugin_call_init(struct plugin *pl)
+{
+	pl->init();
+}
+
+void
+plugin_unload(struct plugin *pl)
+{
+	g_module_close(pl->mod);
+	pl->mod=NULL;
+}
+
+void
+plugin_destroy(struct plugin *pl)
+{
+	g_free(pl);
+}
+
+struct plugins *
+plugins_new(void)
+{
+	struct plugins *ret=g_new0(struct plugins, 1);
+	ret->hash=g_hash_table_new(g_str_hash, g_str_equal);
+	return ret;
+}
+
+void
+plugins_add_path(struct plugins *pls, const char *path, int active, int lazy)
+{
+	struct file_wordexp *we;
+	int i, count;
+	char **array;
+	char *name;
+	struct plugin *pl;
+
+	we=file_wordexp_new(path);
+	count=file_wordexp_get_count(we);
+	array=file_wordexp_get_array(we);	
+	for (i = 0 ; i < count ; i++) {
+		name=array[i];
+		if (! (pl=g_hash_table_lookup(pls->hash, name))) {
+			pl=plugin_new(name);
+			if (! pl) {
+				g_warning("failed to create plugin '%s'\n", name);
+				continue;
+			}
+			g_hash_table_insert(pls->hash, plugin_get_name(pl), pl);
+			pls->list=g_list_append(pls->list, pl);
+		} else {
+			pls->list=g_list_remove(pls->list, pl);
+			pls->list=g_list_append(pls->list, pl);
+		}
+		plugin_set_active(pl, active);
+		plugin_set_lazy(pl, lazy);
+	}
+	file_wordexp_destroy(we);
+}
+
+void
+plugins_init(struct plugins *pls)
+{
+#ifdef USE_PLUGINS
+	struct plugin *pl;
+	GList *l;
+
+	l=pls->list;
+	while (l) {
+		pl=l->data;
+		if (plugin_get_active(pl)) 
+			if (!plugin_load(pl)) 
+				plugin_set_active(pl, 0);
+		l=g_list_next(l);
+	}
+	l=pls->list;
+	while (l) {
+		pl=l->data;
+		if (plugin_get_active(pl)) 
+			plugin_call_init(pl);
+		l=g_list_next(l);
+	}
+#endif
+}
+
+void
+plugins_destroy(struct plugins *pls)
+{
+	GList *l;
+	struct plugin *pl;
+
+	l=pls->list;
+	while (l) {
+		pl=l->data;
+		plugin_unload(pl);
+		plugin_destroy(pl);
+	}
+	g_list_free(pls->list);
+	g_hash_table_destroy(pls->hash);
+	g_free(pls);
+}
+
+void *
+plugin_get_type(enum plugin_type type, const char *name)
+{
+	GList *l;
+	struct name_val *nv;
+	l=plugin_types[type];
+	while (l) {
+		nv=l->data;
+	 	if (!g_ascii_strcasecmp(nv->name, name))
+			return nv->val;
+		l=g_list_next(l);
+	}
+	return NULL;
+}
-- 
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