1 files changed, 27 insertions, 0 deletions
diff --git a/src/lib/kernel/slist.h b/src/lib/kernel/slist.h
new file mode 100644
index 0000000..708105f
--- /dev/null
+++ b/src/lib/kernel/slist.h
@@ -0,0 +1,27 @@
+/* SList -- simple list for students. 
+ * This list was not originally in the pintos implementation. 
+ */
+typedef void * ListElement;
+
+#ifndef _SList_H
+#define _SList_H
+
+struct Node;
+typedef struct Node *PtrToNode;
+typedef PtrToNode SList;
+typedef PtrToNode Position;
+
+SList MakeEmpty( SList L );
+int IsEmpty( SList L );
+int IsLast( Position P,  SList L);
+Position Find( ListElement X, SList L );
+void Delete( ListElement X, SList L );
+Position FindPrevious( ListElement X, SList L );
+void Insert( ListElement X, SList L, Position P );
+void DeleteList( SList L );
+Position Header( SList L );
+Position First( SList L );
+Position Advance( Position P );
+ListElement Retrieve( Position P );
+
+#endif    /* _SList_H */