def wait(self, timeout=None):
if self.returncode is None:
if timeout is not None:
from billiard.connection import wait
if not wait([self.sentinel], timeout):
return None
# This shouldn't block if wait() returned successfully.
return self.poll(os.WNOHANG if timeout == 0.0 else 0)
return self.returncode
def wait(self, timeout=None):
if self.returncode is None:
if timeout is not None:
from billiard.connection import wait
if not wait([self.sentinel], timeout):
return None
# This shouldn't block if wait() returned successfully.
return self.poll(os.WNOHANG if timeout == 0.0 else 0)
return self.returncode
def poll(self, flag=os.WNOHANG):
if self.returncode is None:
from billiard.connection import wait
timeout = 0 if flag == os.WNOHANG else None
if not wait([self.sentinel], timeout):
return None
try:
self.returncode = forkserver.read_unsigned(self.sentinel)
except (OSError, EOFError):
# The process ended abnormally perhaps because of a signal
self.returncode = 255
return self.returncode
