Python AsynchronousLock.async_unlock方法代码示例

# 需要导入模块: from _emerge.AsynchronousLock import AsynchronousLock [as 别名]
# 或者: from _emerge.AsynchronousLock.AsynchronousLock import async_unlock [as 别名]
	def _testAsynchronousLock(self):
		scheduler = global_event_loop()
		tempdir = tempfile.mkdtemp()
		try:
			path = os.path.join(tempdir, 'lock_me')
			for force_async, async_unlock in itertools.product(
				(True, False), repeat=2):
				for force_dummy in (True, False):
					async_lock = AsynchronousLock(path=path,
						scheduler=scheduler, _force_async=force_async,
						_force_thread=True,
						_force_dummy=force_dummy)
					async_lock.start()
					self.assertEqual(async_lock.wait(), os.EX_OK)
					self.assertEqual(async_lock.returncode, os.EX_OK)
					if async_unlock:
						scheduler.run_until_complete(async_lock.async_unlock())
					else:
						async_lock.unlock()

				async_lock = AsynchronousLock(path=path,
					scheduler=scheduler, _force_async=force_async,
					_force_process=True)
				async_lock.start()
				self.assertEqual(async_lock.wait(), os.EX_OK)
				self.assertEqual(async_lock.returncode, os.EX_OK)
				if async_unlock:
					scheduler.run_until_complete(async_lock.async_unlock())
				else:
					async_lock.unlock()
		finally:
			shutil.rmtree(tempdir)

# 需要导入模块: from _emerge.AsynchronousLock import AsynchronousLock [as 别名]
# 或者: from _emerge.AsynchronousLock.AsynchronousLock import async_unlock [as 别名]

#.........这里部分代码省略.........
	def _start_ebuild(self):
		if self.phase == "package":
			self._start_task(PackagePhase(actionmap=self.actionmap,
				background=self.background, fd_pipes=self.fd_pipes,
				logfile=self._get_log_path(), scheduler=self.scheduler,
				settings=self.settings), self._ebuild_exit)
			return

		if self.phase == "unpack":
			alist = self.settings.configdict["pkg"].get("A", "").split()
			_prepare_fake_distdir(self.settings, alist)
			_prepare_fake_filesdir(self.settings)

		fd_pipes = self.fd_pipes
		if fd_pipes is None:
			if not self.background and self.phase == 'nofetch':
				# All the pkg_nofetch output goes to stderr since
				# it's considered to be an error message.
				fd_pipes = {1 : sys.__stderr__.fileno()}

		ebuild_process = EbuildProcess(actionmap=self.actionmap,
			background=self.background, fd_pipes=fd_pipes,
			logfile=self._get_log_path(), phase=self.phase,
			scheduler=self.scheduler, settings=self.settings)

		self._start_task(ebuild_process, self._ebuild_exit)

	def _ebuild_exit(self, ebuild_process):
		self._assert_current(ebuild_process)
		if self._ebuild_lock is None:
			self._ebuild_exit_unlocked(ebuild_process)
		else:
			self._start_task(
				AsyncTaskFuture(future=self._ebuild_lock.async_unlock()),
				functools.partial(self._ebuild_exit_unlocked, ebuild_process))

	def _ebuild_exit_unlocked(self, ebuild_process, unlock_task=None):
		if unlock_task is not None:
			self._assert_current(unlock_task)
			if unlock_task.cancelled:
				self._default_final_exit(unlock_task)
				return

			# Normally, async_unlock should not raise an exception here.
			unlock_task.future.result()

		fail = False
		if ebuild_process.returncode != os.EX_OK:
			self.returncode = ebuild_process.returncode
			if self.phase == "test" and \
				"test-fail-continue" in self.settings.features:
				# mark test phase as complete (bug #452030)
				try:
					open(_unicode_encode(os.path.join(
						self.settings["PORTAGE_BUILDDIR"], ".tested"),
						encoding=_encodings['fs'], errors='strict'),
						'wb').close()
				except OSError:
					pass
			else:
				fail = True

		if not fail:
			self.returncode = None

		logfile = self._get_log_path()

# 需要导入模块: from _emerge.AsynchronousLock import AsynchronousLock [as 别名]
# 或者: from _emerge.AsynchronousLock.AsynchronousLock import async_unlock [as 别名]

#.........这里部分代码省略.........
				fcmd_vars[k] = v

		fetch_env = dict(settings.items())
		fetch_args = [portage.util.varexpand(x, mydict=fcmd_vars) \
			for x in portage.util.shlex_split(fcmd)]

		if self.fd_pipes is None:
			self.fd_pipes = {}
		fd_pipes = self.fd_pipes

		# Redirect all output to stdout since some fetchers like
		# wget pollute stderr (if portage detects a problem then it
		# can send it's own message to stderr).
		fd_pipes.setdefault(0, portage._get_stdin().fileno())
		fd_pipes.setdefault(1, sys.__stdout__.fileno())
		fd_pipes.setdefault(2, sys.__stdout__.fileno())

		self.args = fetch_args
		self.env = fetch_env
		if settings.selinux_enabled():
			self._selinux_type = settings["PORTAGE_FETCH_T"]
		SpawnProcess._start(self)

	def _pipe(self, fd_pipes):
		"""When appropriate, use a pty so that fetcher progress bars,
		like wget has, will work properly."""
		if self.background or not sys.__stdout__.isatty():
			# When the output only goes to a log file,
			# there's no point in creating a pty.
			return os.pipe()
		stdout_pipe = None
		if not self.background:
			stdout_pipe = fd_pipes.get(1)
		got_pty, master_fd, slave_fd = \
			_create_pty_or_pipe(copy_term_size=stdout_pipe)
		return (master_fd, slave_fd)

	def sync_timestamp(self):
			# If possible, update the mtime to match the remote package if
			# the fetcher didn't already do it automatically.
			bintree = self.pkg.root_config.trees["bintree"]
			if bintree._remote_has_index:
				remote_mtime = bintree._remotepkgs[
					bintree.dbapi._instance_key(
					self.pkg.cpv)].get("_mtime_")
				if remote_mtime is not None:
					try:
						remote_mtime = long(remote_mtime)
					except ValueError:
						pass
					else:
						try:
							local_mtime = os.stat(self.pkg_path)[stat.ST_MTIME]
						except OSError:
							pass
						else:
							if remote_mtime != local_mtime:
								try:
									os.utime(self.pkg_path,
										(remote_mtime, remote_mtime))
								except OSError:
									pass

	def async_lock(self):
		"""
		This raises an AlreadyLocked exception if lock() is called
		while a lock is already held. In order to avoid this, call
		unlock() or check whether the "locked" attribute is True
		or False before calling lock().
		"""
		if self._lock_obj is not None:
			raise self.AlreadyLocked((self._lock_obj,))

		result = self.scheduler.create_future()

		def acquired_lock(async_lock):
			if async_lock.wait() == os.EX_OK:
				self.locked = True
				result.set_result(None)
			else:
				result.set_exception(AssertionError(
					"AsynchronousLock failed with returncode %s"
					% (async_lock.returncode,)))

		self._lock_obj = AsynchronousLock(path=self.pkg_path,
			scheduler=self.scheduler)
		self._lock_obj.addExitListener(acquired_lock)
		self._lock_obj.start()
		return result

	class AlreadyLocked(portage.exception.PortageException):
		pass

	def async_unlock(self):
		if self._lock_obj is None:
			raise AssertionError('already unlocked')
		result = self._lock_obj.async_unlock()
		self._lock_obj = None
		self.locked = False
		return result