tests/lockdelay.py
author Matt Harbison <matt_harbison@yahoo.com>
Fri, 27 Dec 2019 13:13:33 -0500
changeset 43970 3194cc8c8de0
parent 43076 2372284d9457
child 45444 f6c67bb4ca03
permissions -rw-r--r--
bugzilla: drop an unused variable assignment Caught by PyCharm. Differential Revision: https://phab.mercurial-scm.org/D7738

# 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


def reposetup(ui, repo):
    class delayedlockrepo(repo.__class__):
        def lock(self):
            delay = float(os.environ.get('HGPRELOCKDELAY', '0.0'))
            if delay:
                time.sleep(delay)
            res = super(delayedlockrepo, self).lock()
            delay = float(os.environ.get('HGPOSTLOCKDELAY', '0.0'))
            if delay:
                time.sleep(delay)
            return res

    repo.__class__ = delayedlockrepo