@Override
public int read(byte[] bytes, int off, int len) throws IOException {
if (bytes == null) {
throw new NullPointerException("null destination buffer");
}
if ((len | off | (off + len) | (bytes.length - (off + len))) < 0) {
throw new IndexOutOfBoundsException();
}
if (len == 0) {
return 0;
}
try {
synchronized (stream) {
final int available = stream.bufferedInputBytesRemaining();
if (available >= len) {
return stream.copyBufferedBytes(bytes, off, len);
} else if (stream.getDescriptor().getChannel() instanceof SelectableChannel) {
SelectableChannel ch = (SelectableChannel) stream.getDescriptor().getChannel();
synchronized (ch.blockingLock()) {
boolean oldBlocking = ch.isBlocking();
try {
if (!oldBlocking) {
ch.configureBlocking(true);
}
return stream.bufferedRead(ByteBuffer.wrap(bytes, off, len), true);
} finally {
if (!oldBlocking) {
ch.configureBlocking(oldBlocking);
}
}
}
} else {
return stream.bufferedRead(ByteBuffer.wrap(bytes, off, len), true);
}
}
} catch (BadDescriptorException ex) {
throw new IOException(ex.getMessage());
} catch (EOFException ex) {
return -1;
}
}
@Override
public void write(byte[] bytes, int off, int len) throws IOException {
if (bytes == null) {
throw new NullPointerException("null source buffer");
}
if ((len | off | (off + len) | (bytes.length - (off + len))) < 0) {
throw new IndexOutOfBoundsException();
}
try {
synchronized (stream) {
if (!stream.isSync() && stream.bufferedOutputSpaceRemaining() >= len) {
stream.buffer.put(bytes, off, len);
} else if (stream.getDescriptor().getChannel() instanceof SelectableChannel) {
SelectableChannel ch = (SelectableChannel) stream.getDescriptor().getChannel();
synchronized (ch.blockingLock()) {
boolean oldBlocking = ch.isBlocking();
try {
if (!oldBlocking) {
ch.configureBlocking(true);
}
stream.bufferedWrite(ByteBuffer.wrap(bytes, off, len));
} finally {
if (!oldBlocking) {
ch.configureBlocking(oldBlocking);
}
}
}
} else {
stream.bufferedWrite(ByteBuffer.wrap(bytes, off, len));
}
}
} catch (BadDescriptorException ex) {
throw new IOException(ex.getMessage());
}
}
@JRubyMethod(required = 1, visibility = Visibility.PRIVATE)
public static IRubyObject initialize(IRubyObject recv, IRubyObject io) {
try {
if (io instanceof RubyIO) {
RubyIO rubyIO = (RubyIO) io;
OpenFile of = rubyIO.getOpenFile();
Stream stream = of.getMainStreamSafe();
if (stream instanceof ChannelStream) {
ChannelStream cStream = (ChannelStream) stream;
if (cStream.getDescriptor().getChannel() instanceof SelectableChannel) {
SelectableChannel selChannel = (SelectableChannel) cStream.getDescriptor().getChannel();
((RubyObject) recv)
.extend(
new IRubyObject[] {
((RubyModule) recv.getRuntime().getModule("Net").getConstant("BufferedIO"))
.getConstant("NativeImplementation")
});
SelectableChannel sc = (SelectableChannel) (selChannel);
recv.dataWrapStruct(new NativeImpl(sc));
}
}
}
recv.getInstanceVariables().setInstanceVariable("@io", io);
recv.getInstanceVariables()
.setInstanceVariable("@read_timeout", recv.getRuntime().newFixnum(60));
recv.getInstanceVariables().setInstanceVariable("@debug_output", recv.getRuntime().getNil());
recv.getInstanceVariables()
.setInstanceVariable("@rbuf", RubyString.newEmptyString(recv.getRuntime()));
return recv;
} catch (BadDescriptorException e) {
throw recv.getRuntime().newErrnoEBADFError();
}
}
