view tests/lockdelay.py @ 39234:3682b49e0213

repository: remove candelta() from ifileindex

candelta() was previously called by changegroup code. With delta
generation moved to the storage API, there are no more external
consumers of this method and it can be removed from the storage
interface.

Differential Revision: https://phab.mercurial-scm.org/D4236

# 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