tmcast: Cosmetics

namespace_demo/tmcast.py

@@ -30,7 +30,7 @@ def _udpsockfor(ipaddr): # -> (sk, isipv6)
     return (sk, ip6)
 
 
-# mjoin_tx returns socket prepated to send/receive to/from multicast group:port.
+# mjoin_tx returns socket prepated to send to multicast group:port.
 def mjoin_tx(group, port, ttl=100):
     sk, ip6 = _udpsockfor(group)
 
@@ -50,13 +50,12 @@ def mjoin_tx(group, port, ttl=100):
 
     return sk
 
-# mjoin_rx returns socket prepated to send/receive to/from multicast group:port.
+# mjoin_rx returns socket prepated to receive from multicast group:port.
 def mjoin_rx(group, port):
     sk, ip6 = _udpsockfor(group)
 
     sk.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)
     sk.bind((group, port))  # works for reception even from multiple ifaces
-    #sk.bind(('', port))     # XXX and later IP_MULTICAST_ALL=0 ?
 
     # join the group on all interfaces
     for ifidx, ifname in net.if_nameindex():
@@ -70,7 +69,6 @@ def mjoin_rx(group, port):
             mreq = inet_pton(AF_INET, group)     + \
                    inet_pton(AF_INET, '0.0.0.0') + \
                    bifidx
-            #print(repr(mreq), len(mreq))
             sk.setsockopt(IPPROTO_IP, IP_ADD_MEMBERSHIP, mreq)
 
     return sk