def countdown(left):
if left == 0:
print "Ignition sequence started!"
with cond:
cond.notify()
return
print "%d seconds to go" % left
sys.stdout.flush()
protocol.invokeLaterWithDelay(1000, countdown, left - 1)
def countdown(left):
if left == 0:
print("Ignition sequence started!")
with cond:
cond.notify()
return
print("%d seconds to go" % left)
sys.stdout.flush()
protocol.invokeLaterWithDelay(1000, countdown, left - 1)
def testTimer():
cond = threading.Condition()
def countdown(left):
if left == 0:
print "Ignition sequence started!"
with cond:
cond.notify()
return
print "%d seconds to go" % left
sys.stdout.flush()
protocol.invokeLaterWithDelay(1000, countdown, left - 1)
with cond:
protocol.invokeLaterWithDelay(0, countdown, 10)
cond.wait(15)
def testTimer():
cond = threading.Condition()
def countdown(left):
if left == 0:
print("Ignition sequence started!")
with cond:
cond.notify()
return
print("%d seconds to go" % left)
sys.stdout.flush()
protocol.invokeLaterWithDelay(1000, countdown, left - 1)
with cond:
protocol.invokeLaterWithDelay(0, countdown, 10)
cond.wait(15)
def __init__(self, target=None, *args, **kwargs):
"""
Construct a TCF task object and schedule it for execution.
"""
if target:
kwargs["done"] = self.__done
else:
target = self.run
self._target = target
self._args = args
self._kwargs = kwargs
self._lock = threading.Condition()
self.__channel = kwargs.pop("channel", None)
protocol.invokeLater(self.__doRun)
timeout = kwargs.pop("timeout", None)
if timeout:
protocol.invokeLaterWithDelay(timeout, self.cancel)
def redirect(self, peer_attrs):
"""
Redirect this channel to given peer using this channel remote peer locator service as a proxy.
@param peer_attrs - peer that will become new remote communication endpoint of this channel
"""
if isinstance(peer_attrs, str):
# support for redirect(peerId)
map = {}
map[peer.ATTR_ID] = peer_attrs
peer_attrs = map
channel = self
assert protocol.isDispatchThread()
if self.state == STATE_OPENING:
self.redirect_queue.append(peer_attrs)
else:
assert self.state == STATE_OPEN
assert self.redirect_command is None
try:
l = self.remote_service_by_class.get(locator.LocatorService)
if not l: raise IOError("Cannot redirect channel: peer " +
self.remote_peer.getID() + " has no locator service")
peer_id = peer_attrs.get(peer.ATTR_ID)
if peer_id and len(peer_attrs) == 1:
_peer = l.getPeers().get(peer_id)
if not _peer:
# Peer not found, must wait for a while until peer is discovered or time out
class Callback(object):
found = None
def __call__(self):
if self.found: return
channel.terminate(Exception("Peer " + peer_id + " not found"))
cb = Callback()
protocol.invokeLaterWithDelay(locator.DATA_RETENTION_PERIOD / 3, cb)
class Listener(locator.LocatorListener):
def peerAdded(self, new_peer):
if new_peer.getID() == peer_id:
cb.found = True
channel.state = STATE_OPEN
l.removeListener(self)
channel.redirect_id(peer_id)
l.addListener(Listener())
else:
class DoneRedirect(locator.DoneRedirect):
def doneRedirect(self, token, exc):
assert channel.redirect_command is token
channel.redirect_command = None
if channel.state != STATE_OPENING: return
if exc: channel.terminate(exc)
channel.remote_peer = _peer
channel.remote_service_by_class.clear()
channel.remote_service_by_name.clear()
channel.event_listeners.clear()
self.redirect_command = l.redirect(peer_id, DoneRedirect())
else:
class TransientPeer(peer.TransientPeer):
def __init__(self, peer_attrs, parent):
super(TransientPeer, self).__init__(peer_attrs)
self.parent = parent
def openChannel(self):
c = self.parent.openChannel()
c.redirect(peer_attrs)
class DoneRedirect(locator.DoneRedirect):
def doneRedirect(self, token, exc):
assert channel.redirect_command is token
channel.redirect_command = None
if channel.state != STATE_OPENING: return
if exc: channel.terminate(exc)
parent = channel.remote_peer
channel.remote_peer = TransientPeer(peer_attrs, parent)
channel.remote_service_by_class.clear()
channel.remote_service_by_name.clear()
channel.event_listeners.clear()
self.redirect_command = l.redirect(peer_attrs, DoneRedirect())
self.state = STATE_OPENING
except Exception as x:
self.terminate(x)
