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/*
* Sun Public License Notice
*
* The contents of this file are subject to the Sun Public License Version
* 1.0 (the "License"). You may not use this file except in compliance
* with the License. A copy of the License is available at
* http://www.sun.com/
*
* The Original Code is Terminal Emulator.
* The Initial Developer of the Original Code is Sun Microsystems, Inc..
* Portions created by Sun Microsystems, Inc. are Copyright (C) 2001.
* All Rights Reserved.
*
* Contributor(s): Ivan Soleimanipour.
*/
/*
* "TermStream.java"
* TermStream.java 1.7 01/07/10
*/
package org.netbeans.lib.terminalemulator;
/**
* TermStream is analogous to unix STREAMS.
*
* It is a full duplex processing and data transfer path between a raw
* Term (The Data Terminal Equipment, DTE) and a client of the Term, usually
* a process (The Data Communication Equipment, DCE).
*
* TermStream's can be chained together. This is performed using
* @see org.netbeans.lib.terminalemulator.Term#pushStream
*
* Streams are usually used (in the context of terminals) to do echoing,
* line buffering, CR/NL translation and so on. See
* @see org.netbeans.lib.terminalemulator.LineDiscipline .
* They can also be used for logging and debugging.
*/
public abstract class TermStream {
protected TermStream toDTE; // delegate putChar's to toDTE
protected TermStream toDCE; // delegate sendChar to from_keyboard
void setToDCE(TermStream toDCE) {
this.toDCE = toDCE;
}
void setToDTE(TermStream toDTE) {
this.toDTE = toDTE;
}
void setTerm(Term term) {
this.term = term;
}
protected Term getTerm() {
return term;
}
private Term term;
// From world (DCE) to terminal (DTE) screen
public abstract void flush();
public abstract void putChar(char c);
public abstract void putChars(char buf[], int offset, int count);
// From terminal *keyboard) (DTE) to world (DCE).
public abstract void sendChar(char c);
public abstract void sendChars(char c[], int offset, int count);
}
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