# Copyright 2008-2015 Nokia Networks
# Copyright 2016- Robot Framework Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from signal import ITIMER_REAL, setitimer, SIG_DFL, SIGALRM, signal
from robot.errors import DataError, TimeoutExceeded
from .runner import Runner
[docs]
class PosixRunner(Runner):
_started = 0
def __init__(
self,
timeout: float,
timeout_error: TimeoutExceeded,
data_error: "DataError|None" = None,
):
super().__init__(timeout, timeout_error, data_error)
self._orig_alrm = None
def _run(self, runnable):
self._start_timer()
try:
return runnable()
finally:
self._stop_timer()
def _start_timer(self):
if not self._started:
self._orig_alrm = signal(SIGALRM, self._raise_timeout)
setitimer(ITIMER_REAL, self.timeout)
type(self)._started += 1
def _raise_timeout(self, signum, frame):
self.exceeded = True
if not self.paused:
raise self.timeout_error
def _stop_timer(self):
type(self)._started -= 1
if not self._started:
setitimer(ITIMER_REAL, 0)
signal(SIGALRM, self._orig_alrm or SIG_DFL)