@JRubyMethod
public static IRubyObject rbuf_fill(IRubyObject recv) {
RubyString buf = (RubyString) recv.getInstanceVariables().getInstanceVariable("@rbuf");
RubyIO io = (RubyIO) recv.getInstanceVariables().getInstanceVariable("@io");
int timeout =
RubyNumeric.fix2int(recv.getInstanceVariables().getInstanceVariable("@read_timeout"))
* 1000;
NativeImpl nim = (NativeImpl) recv.dataGetStruct();
Selector selector = null;
synchronized (nim.channel.blockingLock()) {
boolean oldBlocking = nim.channel.isBlocking();
try {
selector =
SelectorFactory.openWithRetryFrom(recv.getRuntime(), SelectorProvider.provider());
nim.channel.configureBlocking(false);
SelectionKey key = nim.channel.register(selector, SelectionKey.OP_READ);
int n = selector.select(timeout);
if (n > 0) {
IRubyObject readItems =
io.read(new IRubyObject[] {recv.getRuntime().newFixnum(1024 * 16)});
return buf.concat(readItems);
} else {
RubyClass exc =
(RubyClass) (recv.getRuntime().getModule("Timeout").getConstant("Error"));
throw new RaiseException(
RubyException.newException(recv.getRuntime(), exc, "execution expired"), false);
}
} catch (IOException exception) {
throw recv.getRuntime().newIOErrorFromException(exception);
} finally {
if (selector != null) {
try {
selector.close();
} catch (Exception e) {
}
}
try {
nim.channel.configureBlocking(oldBlocking);
} catch (IOException ioe) {
}
}
}
}
