import json
+import Queue as queue
import socket
import threading
import time
-import Queue as queue
+import traceback
+import sys
+
+from utils import random_string, timestr, print_log
+
class Shared:
- def __init__(self):
+ def __init__(self, config):
self.lock = threading.Lock()
self._stopped = False
+ self.config = config
def stop(self):
- print "Stopping Stratum"
+ print_log("Stopping Stratum")
with self.lock:
self._stopped = True
class Processor(threading.Thread):
def __init__(self):
- self.shared = None
+ threading.Thread.__init__(self)
+ self.daemon = True
+ self.dispatcher = None
+ self.queue = queue.Queue()
+
+ def process(self, session, request):
+ pass
+
+ def add_request(self, session, request):
+ self.queue.put((session, request))
+
+ def push_response(self, session, response):
+ #print "response", response
+ self.dispatcher.request_dispatcher.push_response(session, response)
+
+ def run(self):
+ while not self.shared.stopped():
+ request, session = self.queue.get(10000000000)
+ try:
+ self.process(request, session)
+ except:
+ traceback.print_exc(file=sys.stdout)
+
+ print_log("processor terminating")
+
+
+class Dispatcher:
+
+ def __init__(self, config):
+ self.shared = Shared(config)
+ self.request_dispatcher = RequestDispatcher(self.shared)
+ self.request_dispatcher.start()
+ self.response_dispatcher = \
+ ResponseDispatcher(self.shared, self.request_dispatcher)
+ self.response_dispatcher.start()
+
+ def register(self, prefix, processor):
+ processor.dispatcher = self
+ processor.shared = self.shared
+ processor.start()
+ self.request_dispatcher.processors[prefix] = processor
+
+
+class RequestDispatcher(threading.Thread):
+
+ def __init__(self, shared):
+ self.shared = shared
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()
- self.sessions = []
+ self.idlock = threading.Lock()
+ 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()
def push_request(self, session, item):
- self.request_queue.put((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 get_session_by_address(self, address):
+ for x in self.sessions.values():
+ if x.address == address:
+ return x
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',[])
+ lastgc = 0
- if method in [ 'numblocks.subscribe', 'address.subscribe', 'server.peers']:
- session.subscribe_to_service(method, params)
+ while not self.shared.stopped():
+ session, request = self.pop_request()
+ try:
+ self.do_dispatch(session, request)
+ except:
+ traceback.print_exc(file=sys.stdout)
- # store session and id locally
- request['id'] = self.store_session_id(session, request['id'])
- self.process(request)
+ if time.time() - lastgc > 60.0:
+ self.collect_garbage()
+ lastgc = time.time()
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)
+ def do_dispatch(self, session, request):
+ """ dispatch request to the relevant processor """
+
+ method = request['method']
+ params = request.get('params', [])
+ suffix = method.split('.')[-1]
+
+ if session is not None:
+ if suffix == 'subscribe':
+ session.subscribe_to_service(method, params)
+
+ prefix = request['method'].split('.')[0]
+ try:
+ p = self.processors[prefix]
+ except:
+ print_log("error: no processor for", prefix)
+ return
+
+ p.add_request(session, request)
+
+ if method in ['server.version']:
+ session.version = params[0]
+ try:
+ session.protocol_version = float(params[1])
+ except:
+ pass
+
+
+ def get_sessions(self):
+ with self.lock:
+ 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 minimise lock contention
+ def remove_session(self, session):
+ key = session.key()
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.sessions.pop(key)
+
+ 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.address = ''
+ self.name = ''
+ self.version = 'unknown'
+ self.protocol_version = 0.
+ 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:
+ #print sub
+ method = sub[0]
+ if method == 'blockchain.address.subscribe':
+ addr = sub[1]
+ break
+ else:
+ addr = None
+
+ if self.subscriptions:
+ print_log("%4s" % self.name,
+ "%15s" % self.address,
+ "%35s" % addr,
+ "%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):
with self.lock:
- self.subscriptions.append((method, params))
-
+ if self._stopped:
+ return
+ if (method, params) not in self.subscriptions:
+ self.subscriptions.append((method,params))
+ self.bp.do_subscribe(method, params, self)
+
+
+ def stop_subscriptions(self):
+ with self.lock:
+ s = self.subscriptions[:]
+ for method, params in s:
+ self.bp.do_unsubscribe(method, params, self)
+ with self.lock:
+ self.subscriptions = []
+
-class Dispatcher(threading.Thread):
+class ResponseDispatcher(threading.Thread):
- def __init__(self, shared, processor):
+ def __init__(self, shared, request_dispatcher):
self.shared = shared
- self.processor = processor
+ self.request_dispatcher = request_dispatcher
threading.Thread.__init__(self)
+ self.daemon = True
def run(self):
while not self.shared.stopped():
- response = self.processor.pop_response()
- #print "pop response", 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
- session.send_response(response)
-
- else:
- for session in self.processor.sessions:
- if not session.stopped():
- if (method,params) in session.subscriptions:
- session.send_response(response)
-
+ session, response = self.request_dispatcher.pop_response()
+ session.send_response(response)
git://git.novaco.in / electrum-server.git / blobdiff