class Semaphore(object):
def __init__(self, count):
self._count = count
self._channel = Channel()
@property
def count(self):
return self._count
def acquire(self, blocking=True, timeout=TIMEOUT_CURRENT):
if self._count > 0:
self._count -= 1
return True
else:
if not blocking:
return False
else:
return self._channel.receive(timeout)
def release(self):
if self._channel.has_receiver():
self._channel.send(True)
else:
self._count += 1
def __enter__(self):
self.acquire()
return self
def __exit__(self, type, value, traceback):
self.release()
class Semaphore(object):
def __init__(self, count):
self._count = count
self._channel = Channel()
@property
def count(self):
return self._count
def acquire(self, blocking = True, timeout = TIMEOUT_CURRENT):
if self._count > 0:
self._count -= 1
return True
else:
if not blocking:
return False
else:
return self._channel.receive(timeout)
def release(self):
if self._channel.has_receiver():
self._channel.send(True)
else:
self._count += 1
def __enter__(self):
self.acquire()
return self
def __exit__(self, type, value, traceback):
self.release()
def __init__(self, count):
self._count = count
self._channel = Channel()
def __init__(self, count):
self._count = count
self._channel = Channel()
