def __command(self, channel, token, name, data):
try:
if name == "redirect":
peer_id = fromJSONSequence(data)[0]
_peer = self.peers.get(peer_id)
if _peer is None:
error = self.__makeErrorReport(errors.TCF_ERROR_UNKNOWN_PEER, "Unknown peer ID")
channel.sendResult(token, toJSONSequence((error,)))
return
channel.sendResult(token, toJSONSequence((None,)))
if isinstance(_peer, peer.LocalPeer):
channel.sendEvent(protocol.getLocator(), "Hello", toJSONSequence((channel.getLocalServices(),)))
return
ChannelProxy(channel, _peer.openChannel())
elif name == "sync":
channel.sendResult(token, None)
elif name == "getPeers":
arr = []
for p in self.peers.values():
arr.append(p.getAttributes())
channel.sendResult(token, toJSONSequence((None, arr)))
else:
channel.rejectCommand(token)
except Exception as x:
channel.terminate(x)
def __init__(self, service, name, data):
self.service = service
self.name = name
try:
self.args = channel.fromJSONSequence(data)
except Exception as x:
protocol.log("Error decoding event data", x)
def event(self, name, data):
try:
args = channel.fromJSONSequence(data)
if name == "contextSuspended":
assert len(args) == 4
self.listener.contextSuspended(args[0], args[1], args[2], args[3])
elif name == "contextResumed":
assert len(args) == 1
self.listener.contextResumed(args[0])
elif name == "contextAdded":
assert len(args) == 1
self.listener.contextAdded(_toContextArray(self.service,args[0]))
elif name == "contextChanged":
assert len(args) == 1
self.listener.contextChanged(_toContextArray(self.service,args[0]))
elif name == "contextRemoved":
assert len(args) == 1
self.listener.contextRemoved(args[0])
elif name == "contextException":
assert len(args) == 2
self.listener.contextException(args[0], args[1])
elif name == "containerSuspended":
assert len(args) == 5
self.listener.containerSuspended(args[0], args[1], args[2], args[3], args[4])
elif name == "containerResumed":
assert len(args) == 1
self.listener.containerResumed(args[0])
else:
raise IOError("RunControl service: unknown event: " + name);
except Exception as x:
self.service.channel.terminate(x)
def event(self, name, data):
try:
args = channel.fromJSONSequence(data)
if name == "changed":
assert len(args) == 1
self.listener.changed(args[0])
else:
raise IOError("MemoryMap service: unknown event: " + name);
except Exception as x:
self.service.channel.terminate(x)
def event(self, name, data):
try:
args = channel.fromJSONSequence(data)
if name == "exited":
assert len(args) == 2
self.listener.exited(args[0], args[1])
else:
raise IOError("Processes service: unknown event: " + name);
except Exception as x:
self.service.channel.terminate(x)
def result(self, token, data):
assert self.token is token
error = None
args = None
try:
args = fromJSONSequence(data)
except Exception as e:
error = e
assert not self.__done
self.__done = True
self.done(error, args)
def event(self, name, data):
try:
args = channel.fromJSONSequence(data)
if name == "peerAdded":
assert len(args) == 1
_peer = Peer(self.channel.getRemotePeer(), args[0])
if self.proxy.peers.get(_peer.getID()):
protocol.log("Invalid peerAdded event", Exception())
return
self.proxy.peers[_peer.getID()] = _peer
for l in self.proxy.listeners:
try:
l.peerAdded(_peer)
except Exception as x:
protocol.log("Unhandled exception in Locator listener", x)
elif name == "peerChanged":
assert len(args) == 1
m = args[0]
if not m: raise Exception("Locator service: invalid peerChanged event - no peer ID")
_peer = self.proxy.peers.get(m.get(peer.ATTR_ID))
if not _peer: return
self.proxy.peers[_peer.getID()] = _peer
for l in self.proxy.listeners:
try:
l.peerChanged(_peer)
except Exception as x:
protocol.log("Unhandled exception in Locator listener", x)
elif name == "peerRemoved":
assert len(args) == 1
id = args[0]
_peer = self.proxy.peers.get(id)
if not _peer: return
del self.proxy.peers[id]
for l in self.proxy.listeners:
try:
l.peerRemoved(id)
except Exception as x:
protocol.log("Unhandled exception in Locator listener", x)
elif name == "peerHeartBeat":
assert len(args) == 1
id = args[0]
_peer = self.proxy.peers.get(id)
if not _peer: return
for l in self.proxy.listeners:
try:
l.peerHeartBeat(id)
except Exception as x:
protocol.log("Unhandled exception in Locator listener", x)
else:
raise IOError("Locator service: unknown event: " + name)
except Exception as x:
self.channel.terminate(x)
def handleEOS(self):
if not self.channel.out_tokens and not self.eos_err_report:
self.channel.close()
else:
x = IOError("Communication channel is closed by remote peer")
if self.eos_err_report:
try:
args = fromJSONSequence(self.eos_err_report)
if len(args) > 0 and args[0] is not None:
x.caused_by = Exception(errors.toErrorString(args[0]))
except IOError:
pass
self.channel.terminate(x)
def event(self, name, data):
try:
args = channel.fromJSONSequence(data)
if name == "created":
if len(args) == 3:
self.listener.created(args[0], args[1], args[2])
else:
assert len(args) == 2
self.listener.created(args[0], args[1], None)
elif name == "disposed":
assert len(args) == 2
self.listener.disposed(args[0], args[1])
else:
raise IOError("Streams service: unknown event: " + name);
except Exception as x:
self.service.channel.terminate(x)
def event(self, name, data):
try:
args = channel.fromJSONSequence(data)
if name == "status":
assert len(args) == 2
self.listener.breakpointStatusChanged(args[0], args[1])
elif name == "contextAdded":
assert len(args) == 1
self.listener.contextAdded(args[0])
elif name == "contextChanged":
assert len(args) == 1
self.listener.contextChanged(args[0])
elif name == "contextRemoved":
assert len(args) == 1
self.listener.contextRemoved(args[0])
else:
raise IOError("Breakpoints service: unknown event: " + name);
except Exception as x:
self.service.channel.terminate(x)
def event(self, name, data):
try:
args = channel.fromJSONSequence(data)
if name == "contextAdded":
assert len(args) == 1
self.listener.contextAdded(_toContextArray(args[0]))
elif name == "contextChanged":
assert len(args) == 1
self.listener.contextChanged(_toContextArray(args[0]))
elif name == "contextRemoved":
assert len(args) == 1
self.listener.contextRemoved(args[0])
elif name == "memoryChanged":
assert len(args) == 2
self.listener.memoryChanged(args[0], _toAddrArray(args[1]), _toSizeArray(args[1]))
else:
raise IOError("Memory service: unknown event: " + name);
except Exception as x:
self.service.channel.terminate(x)
def event(self, name, data):
try:
args = channel.fromJSONSequence(data)
self._callable(self.svc_name, name, *args)
except Exception as x:
protocol.log("Error decoding event data", x)
def __handleInput(self, msg):
assert protocol.isDispatchThread()
if self.state == STATE_CLOSED: return
if self.trace_listeners:
self.__traceMessageReceived(msg)
try:
token = None
typeCode = msg.type
if typeCode in 'PRN':
token_id = msg.token.getID()
cmd = self.out_tokens.get(token_id)
if cmd is None: raise Exception("Invalid token received: " + token_id)
if typeCode != 'P':
del self.out_tokens[token_id]
token = cmd.token
if typeCode == 'C':
if self.state == STATE_OPENING:
raise IOError("Received command " + msg.service + "." + msg.name + " before Hello message")
if self.proxy:
self.proxy.onCommand(msg.token, msg.service, msg.name, msg.data)
else:
token = msg.token
cmds = self.command_servers.get(msg.service)
if cmds:
cmds.command(token, msg.name, msg.data)
else:
self.rejectCommand(token)
elif typeCode == 'P':
token.getListener().progress(token, msg.data)
self.__sendCongestionLevel()
elif typeCode == 'R':
token.getListener().result(token, msg.data)
self.__sendCongestionLevel()
elif typeCode == 'N':
token.getListener().terminated(token, errors.ErrorReport(
"Command is not recognized", errors.TCF_ERROR_INV_COMMAND))
elif typeCode == 'E':
hello = msg.service == locator.NAME and msg.name == "Hello"
if hello:
self.remote_service_by_name.clear()
self.remote_service_by_class.clear()
data = fromJSONSequence(msg.data)[0]
services.onChannelOpened(self, data, self.remote_service_by_name)
self.__makeServiceByClassMap(self.remote_service_by_name, self.remote_service_by_class)
self.zero_copy = "ZeroCopy" in self.remote_service_by_name
if self.proxy and self.state == STATE_OPEN:
self.proxy.onEvent(msg.service, msg.name, msg.data)
elif hello:
assert self.state == STATE_OPENING
self.state = STATE_OPEN
assert self.redirect_command is None
if self.redirect_queue:
self.redirect(self.redirect_queue.pop(0))
else:
self.notifying_channel_opened = True
if not self.registered_with_trasport:
transport.channelOpened(self)
self.registered_with_trasport = True
for l in self.channel_listeners:
if not l: break
try:
l.onChannelOpened()
except Exception as x:
protocol.log("Exception in channel listener", x)
self.notifying_channel_opened = False
else:
list = self.event_listeners.get(msg.service)
if list:
for l in list:
l.event(msg.name, msg.data)
self.__sendCongestionLevel()
elif typeCode == 'F':
len = len(msg.data)
if len > 0 and msg.data[len - 1] == '\0': len -= 1
self.remote_congestion_level = int(msg.data)
else:
assert False
except Exception as x:
x.tb = sys.exc_info()[2]
self.terminate(x)
