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.lock = threading.Lock()
84 self.idlock = threading.Lock()
88 def push_response(self, session, item):
89 self.response_queue.put((session, item))
91 def pop_response(self):
92 return self.response_queue.get()
94 def push_request(self, session, item):
95 self.request_queue.put((session, item))
97 def pop_request(self):
98 return self.request_queue.get()
101 if self.shared is None:
102 raise TypeError("self.shared not set in Processor")
103 while not self.shared.stopped():
104 session, request = self.pop_request()
106 self.do_dispatch(session, request)
108 traceback.print_exc(file=sys.stdout)
115 def do_dispatch(self, session, request):
116 """ dispatch request to the relevant processor """
118 method = request['method']
119 params = request.get('params', [])
120 suffix = method.split('.')[-1]
122 if session is not None:
123 if suffix == 'subscribe':
124 session.subscribe_to_service(method, params)
126 prefix = request['method'].split('.')[0]
128 p = self.processors[prefix]
130 print_log("error: no processor for", prefix)
133 p.add_request(session, request)
135 if method in ['server.version']:
136 session.version = params[0]
138 session.protocol_version = float(params[1])
143 def get_sessions(self):
148 def add_session(self, session):
150 self.sessions.append(session)
152 def collect_garbage(self):
153 # Deep copy entire sessions list and blank it
154 # This is done to minimize lock contention
156 sessions = self.sessions[:]
161 for session in sessions:
162 if (now - session.time) > 1000:
165 bp = self.processors['blockchain']
167 for session in sessions:
168 if not session.stopped():
169 # If session is still alive then re-add it back
170 # to our internal register
171 active_sessions.append(session)
173 session.stop_subscriptions(bp)
176 self.sessions = active_sessions[:]
183 self._stopped = False
184 self.lock = threading.Lock()
185 self.subscriptions = []
188 self.version = 'unknown'
189 self.protocol_version = 0.
190 self.time = time.time()
191 threading.Timer(2, self.info).start()
194 # Debugging method. Doesn't need to be threadsafe.
196 for sub in self.subscriptions:
199 if method == 'blockchain.address.subscribe':
205 if self.subscriptions:
206 print_log("%4s" % self.name,
207 "%15s" % self.address,
209 "%3d" % len(self.subscriptions),
217 def subscribe_to_service(self, method, params):
219 if (method, params) not in self.subscriptions:
220 self.subscriptions.append((method,params))
223 def stop_subscriptions(self, bp):
225 s = self.subscriptions[:]
227 for method, params in s:
229 if method == 'blockchain.numblocks.subscribe':
230 if self in bp.watch_blocks:
231 bp.watch_blocks.remove(self)
232 elif method == 'blockchain.headers.subscribe':
233 if self in bp.watch_headers:
234 bp.watch_headers.remove(self)
235 elif method == "blockchain.address.subscribe":
237 l = bp.watched_addresses.get(addr)
243 bp.watched_addresses.pop(addr)
246 self.subscriptions = []
249 class ResponseDispatcher(threading.Thread):
251 def __init__(self, shared, request_dispatcher):
253 self.request_dispatcher = request_dispatcher
254 threading.Thread.__init__(self)
258 while not self.shared.stopped():
259 session, response = self.request_dispatcher.pop_response()
260 session.send_response(response)