import time
import Queue as queue
-class Processor(threading.Thread):
+from processor import Session, Dispatcher, Shared
- def __init__(self):
- self.shared = None
- threading.Thread.__init__(self)
- self.daemon = True
- self.request_queue = queue.Queue()
- self.response_queue = queue.Queue()
- self.internal_ids = {}
- self.internal_id = 1
- self.lock = threading.Lock()
-
- def push_response(self, item):
- self.response_queue.put(item)
-
- def pop_response(self):
- return self.response_queue.get()
-
- def push_request(self, session, item):
- self.request_queue.put((session,item))
-
- def pop_request(self):
- return self.request_queue.get()
-
- def get_session_id(self, internal_id):
- with self.lock:
- return self.internal_ids.pop(internal_id)
-
- def store_session_id(self, session, msgid):
- with self.lock:
- self.internal_ids[self.internal_id] = session, msgid
- r = self.internal_id
- self.internal_id += 1
- return r
-
- def run(self):
- if self.shared is None:
- raise TypeError("self.shared not set in Processor")
- while not self.shared.stopped():
- session, request = self.pop_request()
-
- method = request['method']
- params = request.get('params',[])
-
- if method in [ 'numblocks.subscribe', 'address.subscribe', 'server.peers']:
- session.subscribe_to_service(method, params)
-
- # store session and id locally
- request['id'] = self.store_session_id(session, request['id'])
- self.process(request)
-
- self.stop()
-
- def stop(self):
- pass
-
- def process(self, request):
- print "New request", request
- # Do stuff...
- # response = request
- # When ready, you call
- # self.push_response(response)
-
-
-
-class Session:
+class TcpSession(Session):
def __init__(self, connection, address):
self._connection = connection
self.address = address
- self._stopped = False
- self.lock = threading.Lock()
- self.subscriptions = []
- print "new session", address
-
- def stop(self):
- self._connection.close()
- print "Terminating connection:", self.address[0]
- with self.lock:
- self._stopped = True
-
- def stopped(self):
- with self.lock:
- return self._stopped
+ Session.__init__(self)
def connection(self):
if self.stopped():
else:
return self._connection
- def subscribe_to_service(self, method, params):
+ def stop(self):
+ self._connection.close()
+ print "Terminating connection:", self.address[0]
with self.lock:
- self.subscriptions.append((method, params))
-
-
-
-class TcpResponder(threading.Thread):
-
- def __init__(self, shared, processor, server):
- self.shared = shared
- self.processor = processor
- self.server = server
- threading.Thread.__init__(self)
-
-
- def run(self):
- while not self.shared.stopped():
- response = self.processor.pop_response()
- internal_id = response.get('id')
- params = response.get('params',[])
- try:
- method = response['method']
- except:
- print "no method", response
- continue
-
- if internal_id:
- session, message_id = self.processor.get_session_id(internal_id)
- response['id'] = message_id
- self.send_response(response, session)
-
- else:
- for session in self.server.sessions:
- if not session.stopped():
- if (method,params) in session.subscriptions:
- self.send_response(response, session)
-
-
+ self._stopped = True
- def send_response(self, response, session):
+ def send_response(self, response):
raw_response = json.dumps(response)
# Possible race condition here by having session
# close connection?
# I assume Python connections are thread safe interfaces
try:
- connection = session.connection()
+ connection = self.connection()
connection.send(raw_response + "\n")
except:
- session.stop()
+ self.stop()
+
+
class TcpClientRequestor(threading.Thread):
def __init__(self, shared, processor, host, port):
self.shared = shared
self.processor = processor
- self.sessions = []
threading.Thread.__init__(self)
self.daemon = True
self.host = host
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.bind((self.host, self.port))
sock.listen(1)
- responder = TcpResponder(self.shared, self.processor, self)
- responder.start()
while not self.shared.stopped():
- session = Session(*sock.accept())
+ session = TcpSession(*sock.accept())
client_req = TcpClientRequestor(self.shared, self.processor, session)
client_req.start()
- self.add_session(session)
- self.collect_garbage()
-
- def add_session(self, session):
- with self.lock:
- self.sessions.append(session)
-
- def collect_garbage(self):
- # Deep copy entire sessions list and blank it
- # This is done to minimise lock contention
- with self.lock:
- sessions = self.sessions[:]
- self.sessions = []
- for session in sessions:
- if not session.stopped():
- # If session is still alive then re-add it back
- # to our internal register
- self.add_session(session)
-
+ self.processor.add_session(session)
+ self.processor.collect_garbage()
-class Shared:
-
- def __init__(self):
- self.lock = threading.Lock()
- self._stopped = False
- def stop(self):
- print "Stopping Stratum"
- with self.lock:
- self._stopped = True
- def stopped(self):
- with self.lock:
- return self._stopped
class Stratum:
git://git.novaco.in / electrum-server.git / blobdiff