self.dispatcher = None
self.queue = queue.Queue()
- def process(self, request):
+ def process(self, session, request):
pass
- def add_request(self, request):
- self.queue.put(request)
+ def add_request(self, session, request):
+ self.queue.put((session, request))
- def push_response(self, response):
+ def push_response(self, session, response):
#print "response", response
- self.dispatcher.request_dispatcher.push_response(response)
+ self.dispatcher.request_dispatcher.push_response(session, response)
def run(self):
while not self.shared.stopped():
- request = self.queue.get(10000000000)
+ request, session = self.queue.get(10000000000)
try:
- self.process(request)
+ self.process(request, session)
except:
traceback.print_exc(file=sys.stdout)
self.daemon = True
self.request_queue = queue.Queue()
self.response_queue = queue.Queue()
- self.internal_ids = {}
- self.internal_id = 1
self.lock = threading.Lock()
self.idlock = threading.Lock()
- self.sessions = []
+ self.sessions = {}
self.processors = {}
- def push_response(self, item):
- self.response_queue.put(item)
+ def push_response(self, session, item):
+ self.response_queue.put((session, item))
def pop_response(self):
return self.response_queue.get()
return self.request_queue.get()
def get_session_by_address(self, address):
- for x in self.sessions:
+ for x in self.sessions.values():
if x.address == address:
return x
- def get_session_id(self, internal_id):
- with self.idlock:
- return self.internal_ids.pop(internal_id)
-
- def store_session_id(self, session, msgid):
- with self.idlock:
- 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")
+
+ lastgc = 0
+
while not self.shared.stopped():
session, request = self.pop_request()
try:
except:
traceback.print_exc(file=sys.stdout)
+ if time.time() - lastgc > 60.0:
+ self.collect_garbage()
+ lastgc = time.time()
+
self.stop()
def stop(self):
if suffix == 'subscribe':
session.subscribe_to_service(method, params)
- # store session and id locally
- request['id'] = self.store_session_id(session, request['id'])
-
prefix = request['method'].split('.')[0]
try:
p = self.processors[prefix]
print_log("error: no processor for", prefix)
return
- p.add_request(request)
+ p.add_request(session, request)
if method in ['server.version']:
session.version = params[0]
def get_sessions(self):
with self.lock:
- r = self.sessions[:]
+ r = self.sessions.values()
return r
def add_session(self, session):
+ key = session.key()
with self.lock:
- self.sessions.append(session)
+ self.sessions[key] = session
- def collect_garbage(self):
- # Deep copy entire sessions list and blank it
- # This is done to minimize lock contention
+ def remove_session(self, session):
+ key = session.key()
with self.lock:
- sessions = self.sessions[:]
-
- active_sessions = []
- for session in sessions:
- if not session.stopped():
- # If session is still alive then re-add it back
- # to our internal register
- active_sessions.append(session)
+ self.sessions.pop(key)
- with self.lock:
- self.sessions = active_sessions[:]
+ def collect_garbage(self):
+ now = time.time()
+ for session in self.sessions.values():
+ if (now - session.time) > session.timeout:
+ session.stop()
class Session:
- def __init__(self):
+ def __init__(self, dispatcher):
+ self.dispatcher = dispatcher
+ self.bp = self.dispatcher.processors['blockchain']
self._stopped = False
self.lock = threading.Lock()
self.subscriptions = []
self.time = time.time()
threading.Timer(2, self.info).start()
+
+ def key(self):
+ return self.name + self.address
+
+
# Debugging method. Doesn't need to be threadsafe.
def info(self):
for sub in self.subscriptions:
"%3d" % len(self.subscriptions),
self.version)
+ def stop(self):
+ with self.lock:
+ if self._stopped:
+ return
+ self._stopped = True
+
+ self.shutdown()
+ self.dispatcher.remove_session(self)
+ self.stop_subscriptions()
+
+
+ def shutdown(self):
+ pass
+
+
def stopped(self):
with self.lock:
return self._stopped
+
def subscribe_to_service(self, method, params):
- subdesc = self.build_subdesc(method, params)
with self.lock:
- if subdesc is not None:
- self.subscriptions.append(subdesc)
-
- # subdesc = A subscription description
- @staticmethod
- def build_subdesc(method, params):
- if method == "blockchain.numblocks.subscribe":
- return method,
- elif method == "blockchain.headers.subscribe":
- return method,
- elif method in ["blockchain.address.subscribe"]:
- if not params:
- return None
- else:
- return method, params[0]
- else:
- return None
+ if (method, params) not in self.subscriptions:
+ self.subscriptions.append((method,params))
+
+
+ def stop_subscriptions(self):
+ bp = self.bp
- def contains_subscription(self, subdesc):
with self.lock:
- return subdesc in self.subscriptions
+ s = self.subscriptions[:]
+
+ for method, params in s:
+ with bp.watch_lock:
+ if method == 'blockchain.numblocks.subscribe':
+ if self in bp.watch_blocks:
+ bp.watch_blocks.remove(self)
+ elif method == 'blockchain.headers.subscribe':
+ if self in bp.watch_headers:
+ bp.watch_headers.remove(self)
+ elif method == "blockchain.address.subscribe":
+ addr = params[0]
+ l = bp.watched_addresses.get(addr)
+ if not l:
+ continue
+ if self in l:
+ l.remove(self)
+ if self in l:
+ print "error rc!!"
+ bp.shared.stop()
+
+ if l == []:
+ bp.watched_addresses.pop(addr)
+
+ with self.lock:
+ self.subscriptions = []
class ResponseDispatcher(threading.Thread):
def run(self):
while not self.shared.stopped():
- self.update()
-
- def update(self):
- response = self.request_dispatcher.pop_response()
- #print "pop response", response
- internal_id = response.get('id')
- method = response.get('method')
- params = response.get('params')
-
- # A notification
- if internal_id is None: # and method is not None and params is not None:
- found = self.notification(method, params, response)
- if not found and method == 'blockchain.address.subscribe':
- request = {
- 'id': None,
- 'method': method.replace('.subscribe', '.unsubscribe'),
- 'params': [self.shared.config.get('server', 'password')] + params,
- }
-
- self.request_dispatcher.push_request(None, request)
- # A response
- elif internal_id is not None:
- self.send_response(internal_id, response)
- else:
- print_log("no method", response)
-
- def notification(self, method, params, response):
- subdesc = Session.build_subdesc(method, params)
- found = False
- for session in self.request_dispatcher.sessions:
- if session.stopped():
- continue
- if session.contains_subscription(subdesc):
- session.send_response(response)
- found = True
- # if not found: print_log("no subscriber for", subdesc)
- return found
-
- def send_response(self, internal_id, response):
- session, message_id = self.request_dispatcher.get_session_id(internal_id)
- if session:
- response['id'] = message_id
+ session, response = self.request_dispatcher.pop_response()
session.send_response(response)
- #else:
- # print_log("send_response: no session", message_id, internal_id, response )
git://git.novaco.in / electrum-server.git / blobdiff