# HG changeset patch
# User Matt Harbison <matt_harbison@yahoo.com>
# Date 1671218642 18000
# Node ID 1d1b244a91b603a266aad491b6a8a6b5d978411a
# Parent  54114bba7c7eac695f0b4de54f0704d1cfef0912
util: fix the signature of observedbufferedinputpipe._fillbuffer()

Flagged by PyCharm, since it didn't match the signature of the method being
overridden.  The default value in the superclass is also `_chunksize`, and I
suspect that the amount read from `osread` should be limited to what is passed
in.  Only one caller (`bufferedinputpipe.unbufferedread()`) passes this
argument, and it passes the max of `_chunksize` and whatever it was passed.

diff -r 54114bba7c7e -r 1d1b244a91b6 mercurial/util.py
--- a/mercurial/util.py	Fri Dec 16 14:15:09 2022 -0500
+++ b/mercurial/util.py	Fri Dec 16 14:24:02 2022 -0500
@@ -642,12 +642,12 @@
     ``read()`` and ``readline()``.
     """
 
-    def _fillbuffer(self):
-        res = super(observedbufferedinputpipe, self)._fillbuffer()
+    def _fillbuffer(self, size=_chunksize):
+        res = super(observedbufferedinputpipe, self)._fillbuffer(size=size)
 
         fn = getattr(self._input._observer, 'osread', None)
         if fn:
-            fn(res, _chunksize)
+            fn(res, size)
 
         return res