@JRubyMethod(
name = {"new_out", "alloc_out", "__alloc_out"},
meta = true)
public static Buffer allocateOutput(
ThreadContext context,
IRubyObject recv,
IRubyObject sizeArg,
IRubyObject countArg,
IRubyObject clearArg) {
return allocate(context, recv, sizeArg, RubyFixnum.fix2int(countArg), OUT);
}
@JRubyMethod(name = "truncate", required = 1)
public IRubyObject truncate(IRubyObject len) {
checkWritable();
int l = RubyFixnum.fix2int(len);
int plen = ptr.string.size();
if (l < 0) {
throw getRuntime().newErrnoEINVALError("negative legnth");
}
ptr.string.resize(l);
ByteList buf = ptr.string.getByteList();
if (plen < l) {
// zero the gap
Arrays.fill(buf.getUnsafeBytes(), buf.getBegin() + plen, buf.getBegin() + l, (byte) 0);
}
return len;
}
@JRubyMethod()
public IRubyObject bind(ThreadContext context, IRubyObject addr, IRubyObject backlog) {
final InetSocketAddress iaddr;
if (addr instanceof Addrinfo) {
Addrinfo addrInfo = (Addrinfo) addr;
if (!addrInfo.ip_p(context).isTrue()) {
throw context.runtime.newTypeError("not an INET or INET6 address: " + addrInfo);
}
iaddr = new InetSocketAddress(addrInfo.getInetAddress().getHostAddress(), addrInfo.getPort());
} else {
iaddr = Sockaddr.addressFromSockaddr_in(context, addr);
}
doBind(context, getChannel(), iaddr, RubyFixnum.fix2int(backlog));
return RubyFixnum.zero(context.runtime);
}
@JRubyMethod(name = "truncate", required = 1)
@Override
public IRubyObject truncate(IRubyObject arg) {
checkWritable();
int len = RubyFixnum.fix2int(arg);
if (len < 0) {
throw getRuntime().newErrnoEINVALError("negative legnth");
}
data.internal.modify();
ByteList buf = data.internal.getByteList();
if (len < buf.length()) {
Arrays.fill(buf.getUnsafeBytes(), len, buf.length(), (byte) 0);
}
buf.length(len);
return arg;
}
private void strioInit(ThreadContext context, IRubyObject[] args) {
Ruby runtime = context.runtime;
RubyString string;
IRubyObject mode;
boolean trunc = false;
switch (args.length) {
case 2:
mode = args[1];
if (mode instanceof RubyFixnum) {
int flags = RubyFixnum.fix2int(mode);
ptr.flags = ModeFlags.getOpenFileFlagsFor(flags);
trunc = (flags & ModeFlags.TRUNC) != 0;
} else {
String m = args[1].convertToString().toString();
ptr.flags = OpenFile.ioModestrFmode(runtime, m);
trunc = m.charAt(0) == 'w';
}
string = args[0].convertToString();
if ((ptr.flags & OpenFile.WRITABLE) != 0 && string.isFrozen()) {
throw runtime.newErrnoEACCESError("Permission denied");
}
if (trunc) {
string.resize(0);
}
break;
case 1:
string = args[0].convertToString();
ptr.flags = string.isFrozen() ? OpenFile.READABLE : OpenFile.READWRITE;
break;
case 0:
string = RubyString.newEmptyString(runtime, runtime.getDefaultExternalEncoding());
ptr.flags = OpenFile.READWRITE;
break;
default:
throw runtime.newArgumentError(args.length, 2);
}
ptr.string = string;
ptr.pos = 0;
ptr.lineno = 0;
// funky way of shifting readwrite flags into object flags
flags |= (ptr.flags & OpenFile.READWRITE) * (STRIO_READABLE / OpenFile.READABLE);
}
public static Integer integerOrNull(IRubyObject obj) {
return (!obj.isNil()) ? RubyFixnum.fix2int(obj) : null;
}
public static int intOrMinusOne(IRubyObject obj) {
return (!obj.isNil()) ? RubyFixnum.fix2int(obj) : -1;
}
private static final int getCount(IRubyObject countArg) {
return countArg instanceof RubyFixnum ? RubyFixnum.fix2int(countArg) : 1;
}
public static void buildAddrinfoList(
ThreadContext context, IRubyObject[] args, AddrinfoCallback callback) {
Ruby runtime = context.runtime;
IRubyObject host = args[0];
IRubyObject port = args[1];
boolean emptyHost = host.isNil() || host.convertToString().isEmpty();
try {
if (port instanceof RubyString) {
port = getservbyname(context, new IRubyObject[] {port});
}
IRubyObject family = args.length > 2 ? args[2] : context.nil;
IRubyObject socktype = args.length > 3 ? args[3] : context.nil;
// IRubyObject protocol = args[4];
IRubyObject flags = args.length > 5 ? args[5] : context.nil;
IRubyObject reverseArg = args.length > 6 ? args[6] : context.nil;
// The Ruby Socket.getaddrinfo function supports boolean/nil/Symbol values for the
// reverse_lookup parameter. We need to massage all valid inputs to true/false/null.
Boolean reverseLookup = null;
if (reverseArg instanceof RubyBoolean) {
reverseLookup = reverseArg.isTrue();
} else if (reverseArg instanceof RubySymbol) {
String reverseString = reverseArg.toString();
if ("hostname".equals(reverseString)) {
reverseLookup = true;
} else if ("numeric".equals(reverseString)) {
reverseLookup = false;
} else {
throw runtime.newArgumentError("invalid reverse_lookup flag: :" + reverseString);
}
}
AddressFamily addressFamily = AF_INET;
if (!family.isNil()) {
addressFamily = addressFamilyFromArg(family);
}
boolean is_ipv6 = addressFamily == AddressFamily.AF_INET6;
boolean sock_stream = true;
boolean sock_dgram = true;
Sock sock = SOCK_STREAM;
if (!socktype.isNil()) {
sockFromArg(socktype);
if (sock == SOCK_STREAM) {
sock_dgram = false;
} else if (sock == SOCK_DGRAM) {
sock_stream = false;
}
}
// When Socket::AI_PASSIVE and host is nil, return 'any' address.
InetAddress[] addrs = null;
if (!flags.isNil() && RubyFixnum.fix2int(flags) > 0) {
// The value of 1 is for Socket::AI_PASSIVE.
int flag = RubyNumeric.fix2int(flags);
if ((flag == 1) && emptyHost) {
// use RFC 2732 style string to ensure that we get Inet6Address
addrs = InetAddress.getAllByName(is_ipv6 ? "[::]" : "0.0.0.0");
}
}
if (addrs == null) {
addrs =
InetAddress.getAllByName(
emptyHost ? (is_ipv6 ? "[::1]" : null) : host.convertToString().toString());
}
for (int i = 0; i < addrs.length; i++) {
int p = port.isNil() ? 0 : (int) port.convertToInteger().getLongValue();
callback.addrinfo(addrs[i], p, sock, reverseLookup);
}
} catch (UnknownHostException e) {
throw sockerr(runtime, "getaddrinfo: name or service not known");
}
}