[evolution-kolab] libekolabutil: added micro-implementation of a GList with constant data

[Christian Hilberg <chilberg src gnome org>]

commit 594d33e9719534b1c8b309787deee86e56930dc2
Author: Christian Hilberg <hilberg kernelconcepts de>
Date:   Mon Jul 30 16:23:00 2012 +0200

    libekolabutil: added micro-implementation of a GList with constant data

 src/libekolabutil/kolab-util-glib.c |   54 +++++++++++++++++++++++++++++++++++
 src/libekolabutil/kolab-util-glib.h |   11 +++++++
 2 files changed, 65 insertions(+), 0 deletions(-)
---
diff --git a/src/libekolabutil/kolab-util-glib.c b/src/libekolabutil/kolab-util-glib.c
index f21a41e..a43b04a 100644
--- a/src/libekolabutil/kolab-util-glib.c
+++ b/src/libekolabutil/kolab-util-glib.c
@@ -161,4 +161,58 @@ kolab_util_glib_string_gcompare (gconstpointer a,
 	return g_strcmp0 (str_a, str_b);
 }
 
+void
+kolab_util_glib_gconstlist_free (KolabGConstList *list)
+{
+	KolabGConstList *anchor = NULL;
+	KolabGConstList *ptr = NULL;
+
+	if (list == NULL)
+		return;
+
+	anchor = list;
+	ptr = list->next;
+
+	while (ptr != NULL) {
+		g_free (anchor);
+		anchor = ptr;
+		ptr = anchor->next;
+	}
+	g_free (anchor);
+}
+
+KolabGConstList*
+kolab_util_glib_gconstlist_prepend (KolabGConstList *list, gconstpointer data)
+{
+	KolabGConstList *elem = g_new0 (KolabGConstList, 1);
+
+	elem->const_data = data;
+	elem->next = list;
+	if (list != NULL)
+		list->prev = elem;
+
+	return elem;
+}
+
+KolabGConstList*
+kolab_util_glib_gconstlist_append (KolabGConstList *list, gconstpointer data)
+{
+	KolabGConstList *elem = g_new0 (KolabGConstList, 1);
+	KolabGConstList *ptr = NULL;
+
+	elem->const_data = data;
+
+	if (list == NULL)
+		return elem;
+
+	ptr = list;
+	while (ptr->next != NULL)
+		ptr = ptr->next;
+
+	ptr->next = elem;
+	elem->prev = ptr;
+
+	return list;
+}
+
 /*----------------------------------------------------------------------------*/
diff --git a/src/libekolabutil/kolab-util-glib.h b/src/libekolabutil/kolab-util-glib.h
index 2133a44..543d9da 100644
--- a/src/libekolabutil/kolab-util-glib.h
+++ b/src/libekolabutil/kolab-util-glib.h
@@ -50,6 +50,17 @@ void kolab_util_glib_glist_gdestroy (gpointer data);
 
 gint kolab_util_glib_string_gcompare (gconstpointer a, gconstpointer b);
 
+typedef struct _KolabGConstList KolabGConstList;
+struct _KolabGConstList {
+	gconstpointer const_data;
+	KolabGConstList *next;
+	KolabGConstList *prev;
+};
+
+void kolab_util_glib_gconstlist_free (KolabGConstList *list);
+KolabGConstList* kolab_util_glib_gconstlist_prepend (KolabGConstList *list, gconstpointer data);
+KolabGConstList* kolab_util_glib_gconstlist_append (KolabGConstList *list, gconstpointer data);
+
 /*----------------------------------------------------------------------------*/
 
 #endif /* _KOLAB_UTIL_GLIB_H_ */