/** Unblock given source. */
void unblock(MembershipKeyImpl key, InetAddress source) {
assert key.channel() == this;
assert key.sourceAddress() == null;
synchronized (stateLock) {
if (!key.isValid()) throw new IllegalStateException("key is no longer valid");
try {
if (key instanceof MembershipKeyImpl.Type6) {
MembershipKeyImpl.Type6 key6 = (MembershipKeyImpl.Type6) key;
Net.unblock6(fd, key6.groupAddress(), key6.index(), Net.inet6AsByteArray(source));
} else {
MembershipKeyImpl.Type4 key4 = (MembershipKeyImpl.Type4) key;
Net.unblock4(fd, key4.groupAddress(), key4.interfaceAddress(), Net.inet4AsInt(source));
}
} catch (IOException ioe) {
// should not happen
throw new AssertionError(ioe);
}
}
}
