X-Git-Url: http://dolda2000.com/gitweb/?a=blobdiff_plain;f=manga%2Flib.py;h=8ec9c2eb9f7666eb1383caa57e579fb956b81a3a;hb=af7300680e36fb1280cf248b897069ae5af18b08;hp=52f75ea9f5e3e60630be362f2519c1d4921e91fd;hpb=46b3b90eef4007f3f4e871afd4854f7a06c8bfc8;p=automanga.git

diff --git a/manga/lib.py b/manga/lib.py
index 52f75ea..8ec9c2e 100644
--- a/manga/lib.py
+++ b/manga/lib.py
@@ -123,6 +123,12 @@ class imgstream(object):
     def __exit__(self, *exc_info):
         self.close()
 
+    def fileno(self):
+        """If reading the imgstream may block, fileno() should return
+        a file descriptor that can be polled. If fileno() returns
+        None, that should mean that reading will not block."""
+        return None
+
     def close(self):
         """Close this stream."""
         raise NotImplementedError()
@@ -134,7 +140,10 @@ class imgstream(object):
 
 class cursor(object):
     def __init__(self, ob):
-        self.cur = self.descend(ob)
+        if isinstance(ob, cursor):
+            self.cur = ob.cur
+        else:
+            self.cur = self.descend(ob)
 
     def descend(self, ob):
         while isinstance(ob, pagelist):