constant Socket::MCAST_JOIN_SOURCE_GROUP

MCAST_JOIN_SOURCE_GROUP -> Integer[permalink][rdoc][edit]

Join a multicast source group

BasicSocket#getsockopt, BasicSocket#setsockopt の第2引数(optname)に使用します。

[SEE_ALSO] Socket::Constants::IPPROTO_IP, Socket::Constants::IPPROTO_IPV6, [RFC3678]