com.goldencode.terminal

Class MasterPty

java.lang.Object

com.goldencode.terminal.NativePty

com.goldencode.terminal.MasterPty

Direct Known Subclasses:

VT100Emulator

public abstract class MasterPty
extends NativePty

This class is a simplified interface with PTY native code. It provide buffered read operations.

Author:

mag

Field Summary

Fields

Modifier and Type	Field and Description
private java.io.ByteArrayInputStream	buffer Read buffer
private static CentralLogger	LOG Logger
private static java.lang.String	TERM TERM environment variable template
private char[]	utf16 Used to convert an UTF-16 character to an UTF-8 byte array

Fields inherited from class com.goldencode.terminal.NativePty

mfd_inp, mfd_out, pid

Constructor Summary

Constructors

Constructor and Description
MasterPty(java.lang.String term, java.lang.String[] cmdLine, int overlay) Constructor.

Method Summary

Modifier and Type	Method and Description
int	await() Wait for child process to exit.
byte[]	get() Read from master PTY.
int	getPid() Get child process id.
protected byte	nextByte() Buffered read next byte from master PTY.
int	put(byte[] data) Write to master PTY.
int	put(char ch) Convert UTF-16 character to an UTF-8 byte array and write it to master PTY.
int	put(java.lang.String data) Write to master PTY.
int	sh(java.lang.String term, java.lang.String[] cmdLine, int overlay) Run shell.
void	waitFor() Wait for child process to exit.

Methods inherited from class com.goldencode.terminal.NativePty

read, shell, waitPid, write

Methods inherited from class java.lang.Object

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

Field Detail

LOG

private static final CentralLogger LOG

Logger

TERM

private static final java.lang.String TERM

TERM environment variable template

See Also:

Constant Field Values

buffer

private java.io.ByteArrayInputStream buffer

Read buffer

utf16

private char[] utf16

Used to convert an UTF-16 character to an UTF-8 byte array

Constructor Detail

MasterPty

public MasterPty(java.lang.String term,
                 java.lang.String[] cmdLine,
                 int overlay)

Constructor.

Parameters:

term - Terminal type.

cmdLine - Command line arguments.

overlay - Overlapped mode.

Method Detail

sh

public int sh(java.lang.String term,
              java.lang.String[] cmdLine,
              int overlay)

Run shell.

Parameters:

term - Terminal environment example vt100

cmdLine - Command line arguments

overlay - Overlapped mode.

await

public int await()

Wait for child process to exit.

Returns:

Process status or -1 on error.

get

public byte[] get()

Read from master PTY.

Returns:

A byte array read from master PTY or an empty array if no characters are available.

put

public int put(byte[] data)

Write to master PTY.

Parameters:

data - Array of bytes to write.

Returns:

Number of written bytes.

put

public int put(java.lang.String data)

Write to master PTY.

Parameters:

data - String to write.

Returns:

Number of written bytes.

put

public int put(char ch)

Convert UTF-16 character to an UTF-8 byte array and write it to master PTY.

Parameters:

ch - character to write.

Returns:

Number of written bytes.

nextByte

protected byte nextByte()

Buffered read next byte from master PTY.

Returns:

Next byte from master PTY 0r -1 if buffer is empty.

getPid

public int getPid()

Get child process id.

Returns:

child process id.

waitFor

public void waitFor()

Wait for child process to exit.