tests/lockdelay.py
author Mateusz Kwapich <mitrandir@fb.com>
Tue, 22 Mar 2016 17:05:11 -0700
branchstable
changeset 28661 b732e7f2aba4
parent 28289 d493d64757eb
child 30068 a76d5ba7ac43
permissions -rw-r--r--
convert: dead code removal - old git calling functions (SEC) CVE-2016-3069 (3/5)

# 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