Mercurial > hg
view tests/lockdelay.py @ 30017:973cf6c3de30
perf: add --reverse to perfrevlog
It can be useful to know how fast we can read revisions from a revlog
in reverse. This operation tends to occur in `hg log` commands,
for example.
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Sat, 24 Sep 2016 10:44:37 -0700 |
parents | d493d64757eb |
children | a76d5ba7ac43 |
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# Dummy extension that adds a delay after acquiring a lock. # # This extension can be used to test race conditions between lock acquisition. from __future__ import absolute_import import os import time from mercurial import ( lock as lockmod, ) class delaylock(lockmod.lock): def lock(self): delay = float(os.environ.get('HGPRELOCKDELAY', '0.0')) if delay: time.sleep(delay) res = super(delaylock, self).lock() delay = float(os.environ.get('HGPOSTLOCKDELAY', '0.0')) if delay: time.sleep(delay) return res def extsetup(ui): lockmod.lock = delaylock