view tests/lockdelay.py @ 37061:884a0c1604ad

wireproto: define attr-based classes for representing frames

When frames only had 3 attributes, it was reasonable to
represent them as a tuple. With them growing more attributes,
it will be easier to pass them around as a more formal type.
So let's define attr-based classes to represent frame headers and
full frames.

Differential Revision: https://phab.mercurial-scm.org/D2899

# 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