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Arduino/app/MessageSiphon.java
2005-08-25 21:06:28 +00:00

87 lines
2.8 KiB
Java

/* -*- mode: jde; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
Part of the Processing project - http://processing.org
Copyright (c) 2004-05 Ben Fry and Casey Reas
Copyright (c) 2001-04 Massachusetts Institute of Technology
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package processing.app;
import java.io.*;
/**
* Slurps up messages from compiler.
*/
class MessageSiphon implements Runnable {
BufferedReader streamReader;
Thread thread;
MessageConsumer consumer;
public MessageSiphon(InputStream stream, MessageConsumer consumer) {
this.streamReader = new BufferedReader(new InputStreamReader(stream));
this.consumer = consumer;
thread = new Thread(this);
// don't set priority too low, otherwise exceptions won't
// bubble up in time (i.e. compile errors have a weird delay)
//thread.setPriority(Thread.MIN_PRIORITY);
thread.start();
}
public void run() {
try {
// process data until we hit EOF; this will happily block
// (effectively sleeping the thread) until new data comes in.
// when the program is finally done, null will come through.
//
String currentLine;
while ((currentLine = streamReader.readLine()) != null) {
// \n is added again because readLine() strips it out
//EditorConsole.systemOut.println("messaging in");
consumer.message(currentLine + "\n");
//EditorConsole.systemOut.println("messaging out");
}
//EditorConsole.systemOut.println("messaging thread done");
thread = null;
} catch (NullPointerException npe) {
// Fairly common exception during shutdown
thread = null;
} catch (Exception e) {
// On Linux and sometimes on Mac OS X, a "bad file descriptor"
// message comes up when closing an applet that's run externally.
// That message just gets supressed here..
String mess = e.getMessage();
if ((mess != null) &&
(mess.indexOf("Bad file descriptor") != -1)) {
//if (e.getMessage().indexOf("Bad file descriptor") == -1) {
//System.err.println("MessageSiphon err " + e);
//e.printStackTrace();
} else {
e.printStackTrace();
}
thread = null;
}
}
}