Mercurial > hg
view mercurial/httprangereader.py @ 1799:b942f5cfd326
Replaced fixed window size for walkchangerevs with an increasing one. Window
sizes starts at 8 (for good interactiveness) and doubles with each window
until it is 512, which seems to be the maximum efficient value.
author | Thomas Arendsen Hein <thomas@intevation.de> |
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date | Thu, 23 Feb 2006 22:37:29 +0100 |
parents | 59b3639df0a9 |
children | f5046cab9e2e |
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# httprangereader.py - just what it says # # Copyright 2005 Matt Mackall <mpm@selenic.com> # # This software may be used and distributed according to the terms # of the GNU General Public License, incorporated herein by reference. import byterange, urllib2 class httprangereader(object): def __init__(self, url): self.url = url self.pos = 0 def seek(self, pos): self.pos = pos def read(self, bytes=None): opener = urllib2.build_opener(byterange.HTTPRangeHandler()) urllib2.install_opener(opener) req = urllib2.Request(self.url) end = '' if bytes: end = self.pos + bytes req.add_header('Range', 'bytes=%d-%s' % (self.pos, end)) f = urllib2.urlopen(req) return f.read()