Enumerate log entries using delegates and lambdas
[gregoa/zavai.git] / src / log.vala
index 84b0d2056922e5db9ae4bf0393367d29758409b8..2f10dbc8b5766b69ffe60e728e0cc2870e86cced 100644 (file)
@@ -367,34 +367,27 @@ public class Logger : Resource, Object
         return parser.result;
     }
 
-    protected size_t list_dir(string dir, ref List<string> res)
+    public delegate bool EntriesVisitor(string dir, string name);
+
+
+    protected void list_dir(string dir, EntriesVisitor visitor)
     {
-        size_t count = 0;
         var d = File.new_for_path(dir);
         var enumerator = d.enumerate_children(FILE_ATTRIBUTE_STANDARD_NAME, 0, null);
         FileInfo file_info;
         while ((file_info = enumerator.next_file(null)) != null)
         {
             if (!file_info.get_name().has_suffix(".gpx")) continue;
-            res.append(file_info.get_name());
-            ++count;
+            if (!visitor(dir, file_info.get_name()))
+                break;
         }
-        return count;
     }
 
-    public string[] list_entries(bool only_unacked=true)
+    public void list_entries(EntriesVisitor visitor, bool only_unacked=true)
     {
-        size_t count = 0;
-        List<string> entries = new List<string>();
         if (!only_unacked)
-            count += list_dir(config.homedir + "/archive", ref entries);
-        count += list_dir(config.homedir + "/log", ref entries);
-        string[] res = new string[count+1];
-        size_t cur = 0;
-        for (weak List<string> i = entries; i != null; i = i.next)
-            res[cur++] = i.data;
-        res[cur] = null;
-        return res;
+            list_dir(config.homedir + "/archive", visitor);
+        list_dir(config.homedir + "/log", visitor);
     }
 
     public void instant(string tag, string msg)