Package jmri.util

Class ImmediatePipedOutputStream

java.lang.Object

java.io.OutputStream

java.io.PipedOutputStream

jmri.util.ImmediatePipedOutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

public class ImmediatePipedOutputStream
extends PipedOutputStream

Makes a workaround for standard PipedOutputStream wait.

The PipedInputStream.read(), in case the receive buffer is empty at the time of the call, waits for up to 1000ms. PipedOutputStream.write(int) does call sink.receive, but does not notify() the sink object so that read's wait() terminates.

As a result, the read side of the pipe waits full 1000ms even though data become available during the wait.

The workaround is to simply PipedOutputStream.flush() after write, which returns from wait()s immediately.

Constructor Summary

Constructors

Constructor	Description
ImmediatePipedOutputStream()

Method Summary

Modifier and Type	Method	Description
void	write(byte[] b, int off, int len)
void	write(int b)

Methods inherited from class java.io.PipedOutputStream

close, connect, flush

Methods inherited from class java.io.OutputStream

nullOutputStream, write

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ImmediatePipedOutputStream

public ImmediatePipedOutputStream()

Method Details

write

public void write(byte[] b,
 int off,
 int len)
           throws IOException

Overrides:

write in class PipedOutputStream

Throws:

IOException

write

public void write(int b)
           throws IOException

Overrides:

write in class PipedOutputStream

Throws:

IOException