upstream/mercurial-mirror Files · tests/lockdelay.py

hg: acquire wlock while updating the working directory via updatetotally...

hg: acquire wlock while updating the working directory via updatetotally updatetotally() might be invoked outside wlock scope (e.g. invocation via postincoming() at "hg unbundle" or "hg pull"). In such case, acquisition of wlock is needed for consistent view, because parallel "hg update" and/or "hg bookmarks" might change working directory status while executing updatetotally(). Strictly speaking, truly consistent updating should acquire also store lock, because active bookmark might be moved to another one outside wlock scope (e.g. pulling from other repository causes updating current active one). Acquisition of wlock in this patch ensures consistency in as same level as past "hg update".

Gregory Szorc - - Load All Authors

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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

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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