Package org.sentrysoftware.jawk.jrt

Class DataPump

java.lang.Object

org.sentrysoftware.jawk.jrt.DataPump

All Implemented Interfaces:

Runnable

public class DataPump
extends Object
implements Runnable

Relay data from an input stream to an output stream. A thread is created to do the work.

Jawk uses data pumps to relay stdin, stdout, and stderr of a spawned process (by, for example, system() or "cmd" | getline) to the stdin, stdout, and/or stderr of the calling process (the interpreter itself).

Author:

Danny Daglas

Constructor Summary

Constructors

Constructor	Description
DataPump(InputStream in, PrintStream out)	Represents a data pump.

Method Summary

Modifier and Type	Method	Description
static void	dump(String desc, InputStream in, PrintStream out)	Allocate the data pump and start the thread.
final void	run()	VM entry point for the thread.

Methods inherited from class java.lang.Object

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

Constructor Details

DataPump

public DataPump(InputStream in,
 PrintStream out)

Represents a data pump.

Parameters:

in - The input stream.

out - The output stream.

Method Details

dump

public static void dump(String desc,
 InputStream in,
 PrintStream out)

Allocate the data pump and start the thread.

Parameters:

desc - A human-readable description of this data pump. It is part of the thread name, and, therefore, visible upon a VM thread dump.

in - The input stream.

out - The output stream.

run

public final void run()

VM entry point for the thread. It performs the data relay.

Specified by:

run in interface Runnable