def new_message(client_id,message,channel_name,system):
"""
publish a new message into the channel message queue
client_id - the publishing client id
message - a string or object to publish,if it is a object it is sent as a json string
channel_name - the name of the channel to publish this message
system - true for system messages(like unsubscribe because of GC)
"""
if not (type(message) is str or type(message) is unicode):
message = dumps(message)
get_channel(channel_name).new_message(client_id,message,system)
return 1
def new_message(client_id,message,channel_name,system):
"""
publish a new message into the channel message queue
client_id - the publishing client id
message - a string or object to publish,if it is a object it is sent as a json string
channel_name - the name of the channel to publish this message
system - true for system messages(like unsubscribe because of GC)
"""
if not (type(message) is str or type(message) is unicode):
message = dumps(message)
get_channel(channel_name).new_message(client_id,message,system)
return 1
def get_channel_clients(channel_name): """ get all the clients subscribed to the channel channel_name - name of the channel """ return get_channel(channel_name).get_active_clients()
def get_channel_clients(channel_name): """ get all the clients subscribed to the channel channel_name - name of the channel """ return get_channel(channel_name).get_active_clients()
def get_updates(clients):
"""
get all updates from the channels and waits until one channel have new information
"""
#channel name -> messages
updates = {}
#events to wait for
events = []
#cursors for each channel
cursors = []
for client in clients:
client.touch()
for channel_name,cursor in client.channels.iteritems():
if channel_exist(channel_name):
cursors.append(ChannelCursor(get_channel(channel_name),cursor))
#check for available messages
for cc in cursors:
update = cc.channel.get_updates(cc.cursor)
if type(update) is Event:
events.append(update)
else:
updates[cc.channel.name] = update
#found messages,so just return them
if len(updates) > 0:
return updates
#no messages,so wait for any event
elif len(events) > 0:
fired = False
try:
#mark the client as waiting so the GC doesn't collect them
for client in clients:
client.mark_waiting()
#wait for any event to get fired up to COMET_TIMEOUT seconds
with Timeout(COMET_TIMEOUT,False) as timeout:
waitany(events + [client.channels_event for client in clients])
fired = True
finally:
#clear the marking
for client in clients:
client.touch()
client.clear_waiting()
if fired:
return get_updates(clients)
else:#timeout
return {}
#no channels
else:
return {}
