Mercurial > hg
view contrib/memory.py @ 30891:b1b36c6499c2
commandserver: handle backlog before exiting
Previously, when a chg server is exiting, it does not handle connected
clients so clients may get ECONNRESET and crash:
1. client connect() # success
2. server shouldexit = True and exit
3. client recv() # ECONNRESET
d7875bfbfccb makes this race condition easier to reproduce if a lot of short
chg commands are started in parallel.
This patch fixes the above issue by unlinking the socket path to stop
queuing new connections and processing all pending connections before exit.
author | Jun Wu <quark@fb.com> |
---|---|
date | Wed, 08 Feb 2017 14:45:30 -0800 |
parents | ff896733c66a |
children | de5c9d0e02ea |
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# memory.py - track memory usage # # Copyright 2009 Matt Mackall <mpm@selenic.com> and others # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. '''helper extension to measure memory usage Reads current and peak memory usage from ``/proc/self/status`` and prints it to ``stderr`` on exit. ''' from __future__ import absolute_import import atexit def memusage(ui): """Report memory usage of the current process.""" result = {'peak': 0, 'rss': 0} with open('/proc/self/status', 'r') as status: # This will only work on systems with a /proc file system # (like Linux). for line in status: parts = line.split() key = parts[0][2:-1].lower() if key in result: result[key] = int(parts[1]) ui.write_err(", ".join(["%s: %.1f MiB" % (k, v / 1024.0) for k, v in result.iteritems()]) + "\n") def extsetup(ui): atexit.register(memusage, ui)