- fixed helm web page url and copyright notice

[helm.git] / helm / http_getter / http_getter_map.ml

diff --git a/helm/http_getter/http_getter_map.ml b/helm/http_getter/http_getter_map.ml
index 07c2c10b4a0db1c667bfa4eef2edabb985cd3ce3..06699f1781a237153c489d950fc89e8ee6a8464c 100644 (file)
--- a/helm/http_getter/http_getter_map.ml
+++ b/helm/http_getter/http_getter_map.ml
@@ -1,5 +1,7 @@
 (*
- *  Copyright (C) 2000, HELM Team.
+ * Copyright (C) 2003:
+ *    Stefano Zacchiroli <zack@cs.unibo.it>
+ *    for the HELM Team http://helm.cs.unibo.it/
  *
  *  This file is part of HELM, an Hypertextual, Electronic
  *  Library of Mathematics, developed at the Computer Science
@@ -21,12 +23,9 @@
  *  MA  02111-1307, USA.
  *
  *  For details, see the HELM World-Wide-Web page,
- *  http://cs.unibo.it/helm/.
+ *  http://helm.cs.unibo.it/
  *)
 
-let debug = true;;
-let debug_print s = if debug then prerr_endline s;;
-
 exception Key_already_in of string;;
 exception Key_not_found of string;;
 
@@ -40,7 +39,7 @@ class map dbname =
 
     val mutable db = open_dbm ()
 
-    initializer Gc.finalise Dbm.close db  (* close db on GC *)
+    (*initializer Gc.finalise Dbm.close db  (* close db on GC *)*)
 
     method add key value =
       self#doWriter (lazy (
@@ -66,13 +65,27 @@ class map dbname =
         Dbm.iter f db
       ))
 
+    method sync =
+      self#doWriter (lazy (
+        Dbm.close db;
+        db <- open_dbm ()
+      ))
+
     method clear =
       self#doWriter (lazy (
         Dbm.close db;
-        Sys.remove (dbname ^ ".dir");
-        Sys.remove (dbname ^ ".pag");
+        List.iter
+          (fun ext ->
+            let file = dbname ^ ext in
+            if Sys.file_exists file then Sys.remove file)
+          [".dir"; ".pag"; ".db"];
         db <- open_dbm ()
       ))
 
+    method close =
+      self#doWriter (lazy (
+        Dbm.close db
+      ))
+
   end