initialisation en place, mais ça bloque pendant

lamportclient.py

@@ -26,17 +26,27 @@ class LamportClient:
         self.id = id
         self.time = 0
         
+        self.n_clients_here = 0
+        self.n_clients_total = clients
+
         self.queue = list();
         self.times = {n:0 for n in range(1,clients+1)}
 
         self.channel = pika.BlockingConnection(
             pika.ConnectionParameters(host='localhost')
             ).channel()
-        self.channel.exchange_declare(exchange="lamport", exchange_type="fanout")
+
+        self.channel.basic_qos(prefetch_count=1)
         
+        self.channel.exchange_declare(exchange="lamport", exchange_type="fanout")
+        self.channel.exchange_declare(exchange="lamport_init", exchange_type="fanout")
+
         self.reception = self.channel.queue_declare(exclusive=True).method.queue
-        self.channel.queue_bind(exchange = "lamport", queue = self.reception)
+        self.init_reception = self.channel.queue_declare(exclusive=True).method.queue
 
+        self.channel.queue_bind(exchange = "lamport", queue = self.reception)
+        self.channel.queue_bind(exchange = "lamport_init", queue = self.init_reception)
+        
         self.mustFree = False
         self.mustRequest = True
 
@@ -44,10 +54,16 @@ class LamportClient:
         print("I am {} of {} sites".format(self.id, len(list(self.times.keys()))))
         if self.channel.connection.is_open:
             print("Well connected to server")
+        
+        self.channel.basic_consume(self.initializeCycle, self.init_reception)
+
+        self.channel.basic_publish(exchange="lamport_init", body = "{} says : Hello World!".format(self.id), routing_key='')
+        print("saying hello to the world")
+        self.channel.start_consuming()
+
+        self.channel.basic_consume(self.when_receive, self.reception)
 
         while True:
-            self.channel.basic_consume(self.when_receive, self.reception)
-                
             if self.mustFree:
                 self.free()
                 self.mustFree = False
@@ -65,6 +81,16 @@ class LamportClient:
             #critical_section()
             #client.free()
 
+    def initializeCycle(self, channel, method, properties, body):
+        _,body,_ = str(body).split("'")
+        arrival_id = int(body.split(" ")[0])
+        self.n_clients_here += 1
+
+        print("{} arrived!\nWe are now {} of {}".format(arrival_id, self.n_clients_here, self.n_clients_total))
+        
+        if self.n_clients_here == self.n_clients_total:
+            self.channel.stop_consuming()
+            print ("All Ready, let's go!")
 
     def publish(self, message):
         """publish 
@@ -117,6 +143,8 @@ class LamportClient:
     def when_receive(self, channel, method, properties, body):
         
         body = str(body)
+        _,body,_ = body.split("'") 
+
         print("received {}".format(body))
 
         sender, message, time = body.split(',')
@@ -133,6 +161,8 @@ class LamportClient:
         elif message == 'V':
             self.when_validated(sender, time)
 
+        self.channel.stop_consuming()
+
     def can_acquire(self):
         priority_demand = self.queue[0]
         if(priority_demand[0]) == self: