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PyBitmessage/src/helper_threading.py

38 lines
889 B

from contextlib import contextmanager
import threading
try:
import prctl
def set_thread_name(name): prctl.set_name(name)
def _thread_name_hack(self):
set_thread_name(self.name)
threading.Thread.__bootstrap_original__(self)
threading.Thread.__bootstrap_original__ = threading.Thread._Thread__bootstrap
threading.Thread._Thread__bootstrap = _thread_name_hack
except ImportError:
def set_thread_name(name): pass
class StoppableThread(object):
def initStop(self):
self.stop = threading.Event()
self._stopped = False
def stopThread(self):
self._stopped = True
self.stop.set()
class BusyError(threading.ThreadError):
pass
@contextmanager
def nonBlocking(lock):
locked = lock.acquire(False)
if not locked:
raise BusyError
try:
yield
finally:
lock.release()