@JRubyMethod(required = 1, optional = 1)
public IRubyObject seek(ThreadContext context, IRubyObject[] args) {
Ruby runtime = context.runtime;
checkFrozen();
checkFinalized();
int offset = RubyNumeric.num2int(args[0]);
IRubyObject whence = context.nil;
if (args.length > 1 && !args[0].isNil()) whence = args[1];
checkOpen();
switch (whence.isNil() ? 0 : RubyNumeric.num2int(whence)) {
case 0:
break;
case 1:
offset += ptr.pos;
break;
case 2:
offset += ptr.string.size();
break;
default:
throw runtime.newErrnoEINVALError("invalid whence");
}
if (offset < 0) throw runtime.newErrnoEINVALError("invalid seek value");
ptr.pos = offset;
return RubyFixnum.zero(runtime);
}
protected void initSocket(Ruby runtime, ChannelDescriptor descriptor) {
// continue with normal initialization
openFile = new OpenFile();
try {
openFile.setMainStream(
ChannelStream.fdopen(runtime, descriptor, new ModeFlags(ModeFlags.RDONLY)));
openFile.setPipeStream(
ChannelStream.fdopen(runtime, descriptor, new ModeFlags(ModeFlags.WRONLY)));
openFile.getPipeStream().setSync(true);
} catch (org.jruby.util.io.InvalidValueException ex) {
throw runtime.newErrnoEINVALError();
}
openFile.setMode(OpenFile.READWRITE | OpenFile.SYNC);
}
protected void initSocket(Ruby runtime, ChannelDescriptor descriptor) {
// continue with normal initialization
MakeOpenFile();
try {
openFile.setMainStream(
ChannelStream.fdopen(runtime, descriptor, newModeFlags(runtime, ModeFlags.RDONLY)));
openFile.setPipeStream(
ChannelStream.fdopen(runtime, descriptor, newModeFlags(runtime, ModeFlags.WRONLY)));
openFile.getPipeStream().setSync(true);
} catch (org.jruby.util.io.InvalidValueException ex) {
throw runtime.newErrnoEINVALError();
}
openFile.setMode(OpenFile.READWRITE | OpenFile.SYNC);
// see rsock_init_sock in MRI; sockets are initialized to binary
setAscii8bitBinmode();
}