From: ThomasV <thomasv@gitorious>
Date: Sun, 25 Mar 2012 20:42:46 +0000 (+0400)
Subject: use shared queues
X-Git-Url: https://git.novaco.in/?p=electrum-server.git;a=commitdiff_plain;h=9bb9585ad111f0e7a44301530ca29743baa9c4e3

use shared queues
---

diff --git a/stratum.py b/stratum.py
index ba3ab22..f34bd06 100644
--- a/stratum.py
+++ b/stratum.py
@@ -12,11 +12,25 @@ class Processor(threading.Thread):
         self.sessions = []
         threading.Thread.__init__(self)
         self.daemon = True
+        self.request_queue = queue.Queue()
+        self.response_queue = queue.Queue()
 
     def add_session(self, session):
         with self.lock:
             self.sessions.append(session)
 
+    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))
+
+    def pop_request(self):
+        return self.request_queue.get()
+
     def run(self):
         if self.shared is None:
             raise TypeError("self.shared not set in Processor")
@@ -31,17 +45,21 @@ class Processor(threading.Thread):
                     # If session is still alive then re-add it back
                     # to our internal register
                     self.add_session(session)
-                    self.process(session)
+
+            session, request = self.pop_request()
+            self.process(session, request)
+
         self.stop()
 
     def stop(self):
         pass
 
-    def process(self, session):
-        request = session.pop_request()
+    def process(self, session, request):
         print "New request", request
-        # Execute and when ready, you call
-        # session.push_response(response)
+        # Do stuff...
+        # response = request
+        # When ready, you call
+        # self.push_response(session,response)
 
 class Session:
 
@@ -50,9 +68,6 @@ class Session:
         self.address = address
         self._stopped = False
         self.lock = threading.Lock()
-
-        self.request_queue = queue.Queue()
-        self.response_queue = queue.Queue()
         self.numblocks_sub = None
         self.addresses_sub = {}
 
@@ -72,18 +87,6 @@ class Session:
         else:
             return self._connection
 
-    def push_request(self, item):
-        self.request_queue.put(item)
-
-    def pop_request(self):
-        return self.request_queue.get()
-
-    def push_response(self, item):
-        self.response_queue.put(item)
-
-    def pop_response(self):
-        return self.response_queue.get()
-
     def subscribe_to_numblocks(self,message_id):
         with self.lock:
             self.numblocks_sub = message_id
@@ -93,30 +96,31 @@ class Session:
             self.addresses_sub[address] = message_id,status
 
 
-class TcpClientResponder(threading.Thread):
+class TcpResponder(threading.Thread):
 
-    def __init__(self, shared, session):
+    def __init__(self, shared, processor):
         self.shared = shared
-        self.session = session
+        self.processor = processor
         threading.Thread.__init__(self)
 
     def run(self):
-        while not self.shared.stopped() or self.session.stopped():
-            response = self.session.pop_response()
+        while not self.shared.stopped():
+            session,response = self.processor.pop_response()
             raw_response = json.dumps(response)
             # Possible race condition here by having session
             # close connection?
             # I assume Python connections are thread safe interfaces
-            connection = self.session.connection()
+            connection = session.connection()
             try:
                 connection.send(raw_response + "\n")
             except:
-                self.session.stop()
+                session.stop()
 
 class TcpClientRequestor(threading.Thread):
 
-    def __init__(self, shared, session):
+    def __init__(self, shared, processor, session):
         self.shared = shared
+        self.processor = processor
         self.message = ""
         self.session = session
         threading.Thread.__init__(self)
@@ -158,7 +162,7 @@ class TcpClientRequestor(threading.Thread):
         try:
             command = json.loads(raw_command)
         except:
-            self.session.push_response(
+            self.processor.push_response(self.session,
                 {"error": "bad JSON", "request": raw_command})
             return True
 
@@ -169,10 +173,10 @@ class TcpClientRequestor(threading.Thread):
             method = command['method']
         except KeyError:
             # Return an error JSON in response.
-            self.session.push_response(
+            self.processor.push_response(self.session,
                 {"error": "syntax error", "request": raw_command})
         else:
-            self.session.push_request(command)
+            self.processor.push_request(self.session,command)
 
         return True
 
@@ -193,12 +197,12 @@ class TcpServer(threading.Thread):
         sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
         sock.bind((self.host, self.port))
         sock.listen(1)
+        responder = TcpResponder(self.shared, self.processor)
+        responder.start()
         while not self.shared.stopped():
             session = Session(*sock.accept())
-            client_req = TcpClientRequestor(self.shared, session)
+            client_req = TcpClientRequestor(self.shared, self.processor, session)
             client_req.start()
-            client_res = TcpClientResponder(self.shared, session)
-            client_res.start()
             self.processor.add_session(session)
 
 class Shared:
@@ -224,7 +228,7 @@ class Stratum:
         processor.shared = shared
         processor.start()
         # Create various transports we need
-        transports = TcpServer(shared, processor, "176.31.24.241",50001),
+        transports = TcpServer(shared, processor, "ecdsa.org", 50002),
         for server in transports:
             server.start()
         while not shared.stopped():