@JRubyMethod
public IRubyObject setsockopt(
ThreadContext context, IRubyObject _level, IRubyObject _opt, IRubyObject val) {
Ruby runtime = context.runtime;
SocketLevel level = levelFromArg(_level);
SocketOption opt = optionFromArg(_opt);
try {
Channel channel = getOpenChannel();
SocketType socketType = SocketType.forChannel(channel);
switch (level) {
case SOL_IP:
case SOL_SOCKET:
case SOL_TCP:
case SOL_UDP:
if (opt == SocketOption.SO_LINGER) {
if (val instanceof RubyBoolean && !val.isTrue()) {
socketType.setSoLinger(channel, false, 0);
} else {
int num = asNumber(val);
if (num == -1) {
socketType.setSoLinger(channel, false, 0);
} else {
socketType.setSoLinger(channel, true, num);
}
}
} else {
socketType.setSocketOption(channel, opt, asNumber(val));
}
break;
default:
int intLevel = (int) _level.convertToInteger().getLongValue();
int intOpt = (int) _opt.convertToInteger().getLongValue();
if (IPPROTO_TCP.intValue() == intLevel && TCP_NODELAY.intValue() == intOpt) {
socketType.setTcpNoDelay(channel, asBoolean(val));
} else if (IPPROTO_IP.intValue() == intLevel) {
if (MulticastStateManager.IP_ADD_MEMBERSHIP == intOpt) {
joinMulticastGroup(val);
}
} else {
throw runtime.newErrnoENOPROTOOPTError();
}
}
} catch (BadDescriptorException e) {
throw runtime.newErrnoEBADFError();
} catch (IOException e) {
throw runtime.newErrnoENOPROTOOPTError();
}
return runtime.newFixnum(0);
}
