electrum

commit 9c919e6478a97b10352d4324d9323da0cbec3ac3
parent 1d711eeadc754024bfba9b12822635ec4a013984
Author: SomberNight <somber.night@protonmail.com>
Date:   Sun, 16 Sep 2018 09:01:53 +0200

interface: fix off-by-one in request_chunk

was harmless; usually we just downloaded an extra individual header after the chunk

Diffstat:
M
electrum/interface.py
 | 
5
++---

1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/electrum/interface.py b/electrum/interface.py
@@ -326,7 +326,7 @@ class Interface(PrintError):
         self.print_error("requesting chunk from height {}".format(height))
         size = 2016
         if tip is not None:
-            size = min(size, tip - index * 2016)
+            size = min(size, tip - index * 2016 + 1)
             size = max(size, 0)
         try:
             self._requested_chunks.add(index)
@@ -411,8 +411,7 @@ class Interface(PrintError):
                     continue
                 self.network.notify('updated')
                 height = (height // 2016 * 2016) + num_headers
-                if height > next_height:
-                    assert False, (height, self.tip)
+                assert height <= next_height+1, (height, self.tip)
                 last = 'catchup'
             else:
                 last, height = await self.step(height)