9 from utils import random_string, timestr, print_log
14 def __init__(self, config):
15 self.lock = threading.Lock()
20 print_log("Stopping Stratum")
29 class Processor(threading.Thread):
32 threading.Thread.__init__(self)
34 self.dispatcher = None
35 self.queue = queue.Queue()
37 def process(self, session, request):
40 def add_request(self, session, request):
41 self.queue.put((session, request))
43 def push_response(self, session, response):
44 #print "response", response
45 self.dispatcher.request_dispatcher.push_response(session, response)
48 while not self.shared.stopped():
49 request, session = self.queue.get(10000000000)
51 self.process(request, session)
53 traceback.print_exc(file=sys.stdout)
55 print_log("processor terminating")
60 def __init__(self, config):
61 self.shared = Shared(config)
62 self.request_dispatcher = RequestDispatcher(self.shared)
63 self.request_dispatcher.start()
64 self.response_dispatcher = \
65 ResponseDispatcher(self.shared, self.request_dispatcher)
66 self.response_dispatcher.start()
68 def register(self, prefix, processor):
69 processor.dispatcher = self
70 processor.shared = self.shared
72 self.request_dispatcher.processors[prefix] = processor
75 class RequestDispatcher(threading.Thread):
77 def __init__(self, shared):
79 threading.Thread.__init__(self)
81 self.request_queue = queue.Queue()
82 self.response_queue = queue.Queue()
83 self.internal_ids = {}
85 self.lock = threading.Lock()
86 self.idlock = threading.Lock()
90 def push_response(self, session, item):
91 self.response_queue.put((session, item))
93 def pop_response(self):
94 return self.response_queue.get()
96 def push_request(self, session, item):
97 self.request_queue.put((session, item))
99 def pop_request(self):
100 return self.request_queue.get()
102 def get_session_by_address(self, address):
103 for x in self.sessions:
104 if x.address == address:
107 def get_session_id(self, internal_id):
109 return self.internal_ids.pop(internal_id)
111 def store_session_id(self, session, msgid):
113 self.internal_ids[self.internal_id] = session, msgid
115 self.internal_id += 1
119 if self.shared is None:
120 raise TypeError("self.shared not set in Processor")
121 while not self.shared.stopped():
122 session, request = self.pop_request()
124 self.do_dispatch(session, request)
126 traceback.print_exc(file=sys.stdout)
133 def do_dispatch(self, session, request):
134 """ dispatch request to the relevant processor """
136 method = request['method']
137 params = request.get('params', [])
138 suffix = method.split('.')[-1]
140 if session is not None:
141 if suffix == 'subscribe':
142 session.subscribe_to_service(method, params)
144 prefix = request['method'].split('.')[0]
146 p = self.processors[prefix]
148 print_log("error: no processor for", prefix)
151 p.add_request(session, request)
153 if method in ['server.version']:
154 session.version = params[0]
156 session.protocol_version = float(params[1])
161 def get_sessions(self):
166 def add_session(self, session):
168 self.sessions.append(session)
170 def collect_garbage(self):
171 # Deep copy entire sessions list and blank it
172 # This is done to minimize lock contention
174 sessions = self.sessions[:]
179 for session in sessions:
180 if (now - session.time) > 1000:
183 bp = self.processors['blockchain']
185 for session in sessions:
186 if not session.stopped():
187 # If session is still alive then re-add it back
188 # to our internal register
189 active_sessions.append(session)
191 session.stop_subscriptions(bp)
194 self.sessions = active_sessions[:]
201 self._stopped = False
202 self.lock = threading.Lock()
203 self.subscriptions = []
206 self.version = 'unknown'
207 self.protocol_version = 0.
208 self.time = time.time()
209 threading.Timer(2, self.info).start()
212 # Debugging method. Doesn't need to be threadsafe.
214 for sub in self.subscriptions:
217 if method == 'blockchain.address.subscribe':
223 if self.subscriptions:
224 print_log("%4s" % self.name,
225 "%15s" % self.address,
227 "%3d" % len(self.subscriptions),
235 def subscribe_to_service(self, method, params):
237 if (method, params) not in self.subscriptions:
238 self.subscriptions.append((method,params))
241 def stop_subscriptions(self, bp):
243 s = self.subscriptions[:]
245 for method, params in s:
247 if method == 'blockchain.numblocks.subscribe':
248 if self in bp.watch_blocks:
249 bp.watch_blocks.remove(self)
250 elif method == 'blockchain.headers.subscribe':
251 if self in bp.watch_headers:
252 bp.watch_headers.remove(self)
253 elif method == "blockchain.address.subscribe":
255 l = bp.watched_addresses.get(addr)
261 bp.watched_addresses.pop(addr)
264 self.subscriptions = []
267 class ResponseDispatcher(threading.Thread):
269 def __init__(self, shared, request_dispatcher):
271 self.request_dispatcher = request_dispatcher
272 threading.Thread.__init__(self)
276 while not self.shared.stopped():
277 session, response = self.request_dispatcher.pop_response()
278 session.send_response(response)