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* [SCM] master: gui changes for writer in CLI
@ 2008-02-28 11:43 moore
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From: moore @ 2008-02-28 11:43 UTC (permalink / raw)
To: frysk-cvs
The branch, master has been updated
via bbf65a2f723cbba04b745ee99ab0adb8ab8f82cb (commit)
via 6596e0483077d423d3998600d49d2f9f5928ff65 (commit)
from e5a45290eaa2d95ae971591d15f2cb79a10b6cc7 (commit)
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- Log -----------------------------------------------------------------
commit bbf65a2f723cbba04b745ee99ab0adb8ab8f82cb
Author: Tim Moore <timoore@redhat.com>
Date: Wed Feb 27 11:29:33 2008 +0100
gui changes for writer in CLI
commit 6596e0483077d423d3998600d49d2f9f5928ff65
Author: Tim Moore <moore@blackbox.bricoworks.com>
Date: Wed Feb 20 18:37:42 2008 +0100
FlowControlWriter for buffering asynch output during user input
frysk-core/frysk/bindir/ChangeLog:
2008-02-20 Tim Moore <timoore@redhat.com>
* fhpd.java (TerminalObserver): New class
(CommandLine()): Use TerminalObserver and FlowControlWriter.
frysk-core/frysk/hpd/ChangeLog:
2008-02-20 Tim Moore <timoore@redhat.com>
* CLI.java (constructors): Take a Writer argument instead of a
PrintStream.
frysk-core/frysk/util/ChangeLog:
2008-02-20 Tim Moore <timoore@redhat.com>
* FlowControlWriter.java: New class.
* ObservingTerminal.java: Rename ObservingTerminalObserver to
Observable.
(afterReadLine, getObse
-----------------------------------------------------------------------
Summary of changes:
frysk-core/frysk/bindir/ChangeLog | 5 +
frysk-core/frysk/bindir/fhpd.java | 34 ++++-
frysk-core/frysk/hpd/CLI.java | 14 +-
frysk-core/frysk/hpd/ChangeLog | 5 +
frysk-core/frysk/util/ChangeLog | 7 +
.../frysk/util/FlowControlWriter.java | 143 ++++++++++++++------
frysk-core/frysk/util/ObservingTerminal.java | 35 ++++--
frysk-gui/frysk/gui/monitor/ConsoleWidget.java | 2 +-
frysk-gui/frysk/vtecli/ConsoleWindow.java | 2 +-
9 files changed, 180 insertions(+), 67 deletions(-)
copy frysk-sys/frysk/testbed/TearDownExpect.java => frysk-core/frysk/util/FlowControlWriter.java (54%)
First 500 lines of diff:
diff --git a/frysk-core/frysk/bindir/ChangeLog b/frysk-core/frysk/bindir/ChangeLog
index f570d19..8a4cbe8 100644
--- a/frysk-core/frysk/bindir/ChangeLog
+++ b/frysk-core/frysk/bindir/ChangeLog
@@ -1,3 +1,8 @@
+2008-02-28 Tim Moore <timoore@redhat.com>
+
+ * fhpd.java (TerminalObserver): New class
+ (CommandLine()): Use TerminalObserver and FlowControlWriter.
+
2008-02-27 Sami Wagiaalla <swagiaal@redhat.com>
* fstack.java(stackCore): Use PrintStackOptions instead of boolean
diff --git a/frysk-core/frysk/bindir/fhpd.java b/frysk-core/frysk/bindir/fhpd.java
index 3a5f285..ed2dc6c 100644
--- a/frysk-core/frysk/bindir/fhpd.java
+++ b/frysk-core/frysk/bindir/fhpd.java
@@ -47,9 +47,13 @@ import java.io.FileInputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
+import java.util.Observable;
+import java.util.Observer;
+
import frysk.hpd.CLI;
import jline.Completor;
import jline.ConsoleReader;
+import frysk.util.FlowControlWriter;
import frysk.proc.Manager;
import frysk.util.CommandlineParser;
import frysk.util.ObservingTerminal;
@@ -74,6 +78,21 @@ public class fhpd {
return cli.complete (buffer, cursor, candidates);
}
}
+ static class TerminalObserver implements Observer {
+ private FlowControlWriter writer;
+
+ public TerminalObserver(FlowControlWriter writer) {
+ this.writer = writer;
+ }
+ public void update(Observable observable, Object arg) {
+ ObservingTerminal.Observable obs = (ObservingTerminal.Observable)observable;
+ if (obs.getTerminal().getInputEntered()) {
+ writer.pause();
+ } else {
+ writer.unpause();
+ }
+ }
+ }
// Start the command line in its own thread; but from within
// the event-loop. This ensures that the event-loop is up and
@@ -84,14 +103,18 @@ public class fhpd {
private ConsoleReader reader;
CommandLine() {
// Construct the HPD.
- cli = new CLI("(fhpd) ", System.out);
-
try {
+ ObservingTerminal terminal = new ObservingTerminal(FileDescriptor.in);
+ PrintWriter printWriter = new PrintWriter(System.out);
+ FlowControlWriter writer = new FlowControlWriter(printWriter);
+ terminal.getObservable()
+ .addObserver(new TerminalObserver(writer));
+ cli = new CLI("(fhpd) ", writer);
reader = new ConsoleReader
- (new FileInputStream(java.io.FileDescriptor.in),
- new PrintWriter(System.out),
+ (new FileInputStream(java.io.FileDescriptor.in),
+ printWriter,
null,
- new ObservingTerminal(FileDescriptor.in));
+ terminal);
} catch (IOException ioe) {
System.out.println("ERROR: Could not create a command line");
System.out.print(ioe.getMessage());
@@ -164,7 +187,6 @@ public class fhpd {
parser.setHeader("Usage: fhpd <PID> || fhpd <EXEFILE> || fhpd <COREFILE> [<EXEFILE>]");
parser.parse(args);
-
Manager.eventLoop.add(new CommandLine());
// Run the event loop then exit when it exits (or crashes).
diff --git a/frysk-core/frysk/hpd/CLI.java b/frysk-core/frysk/hpd/CLI.java
index fc770bc..35bc9e5 100644
--- a/frysk-core/frysk/hpd/CLI.java
+++ b/frysk-core/frysk/hpd/CLI.java
@@ -40,8 +40,8 @@
package frysk.hpd;
import frysk.debuginfo.ObjectDeclarationSearchEngine;
-import java.io.PrintStream;
import java.io.PrintWriter;
+import java.io.Writer;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
@@ -218,12 +218,12 @@ public class CLI {
/**
* Constructor
* @param prompt String initially to be used as the prompt
- * @param out Stream for output. This really should be a PrintWriter
+ * @param out PrintWriter for output
* @param steppingEngine existing SteppingEngine
*/
- public CLI(String prompt, PrintStream out, SteppingEngine steppingEngine) {
+ public CLI(String prompt, Writer outWriter, SteppingEngine steppingEngine) {
this.prompt = prompt;
- outWriter = new PrintWriter(out, true);
+ this.outWriter = new PrintWriter(outWriter);
this.steppingEngine = steppingEngine;
idManager = ProcTaskIDManager.getSingleton();
@@ -254,10 +254,10 @@ public class CLI {
/**
* Constructor that creates a new steppingEngine
* @param prompt String initially to be used as the prompt
- * @param out Stream for output. This really should be a PrintWriter
+ * @param out PrintWriter for output.
*/
- public CLI(String prompt, PrintStream out) {
- this(prompt, out, new SteppingEngine());
+ public CLI(String prompt, Writer outWriter) {
+ this(prompt, outWriter, new SteppingEngine());
}
public String getPrompt() {
diff --git a/frysk-core/frysk/hpd/ChangeLog b/frysk-core/frysk/hpd/ChangeLog
index 28d1f25..917fd09 100644
--- a/frysk-core/frysk/hpd/ChangeLog
+++ b/frysk-core/frysk/hpd/ChangeLog
@@ -1,3 +1,8 @@
+2008-02-28 Tim Moore <timoore@redhat.com>
+
+ * CLI.java (constructors): Take a Writer argument instead of a
+ PrintStream.
+
2008-02-27 Rick Moseley <rmoseley@redhat.com>
* ViewsetCommand.java: Fix error when duplicate executables are
diff --git a/frysk-core/frysk/util/ChangeLog b/frysk-core/frysk/util/ChangeLog
index f7a2866..0ec9ce3 100644
--- a/frysk-core/frysk/util/ChangeLog
+++ b/frysk-core/frysk/util/ChangeLog
@@ -1,3 +1,10 @@
+2008-02-28 Tim Moore <timoore@redhat.com>
+
+ * FlowControlWriter.java: New class.
+ * ObservingTerminal.java: Rename ObservingTerminalObserver to
+ Observable.
+ (afterReadLine, getObservable): New methods.
+
2008-02-27 Sami Wagiaalla <swagiaal@redhat.com>
* TestStackTraceAction.java: Use PrintStackOptions instead of boolean list.
diff --git a/frysk-sys/frysk/testbed/TearDownExpect.java b/frysk-core/frysk/util/FlowControlWriter.java
similarity index 54%
copy from frysk-sys/frysk/testbed/TearDownExpect.java
copy to frysk-core/frysk/util/FlowControlWriter.java
index 0e50faf..b0b76fd 100644
--- a/frysk-sys/frysk/testbed/TearDownExpect.java
+++ b/frysk-core/frysk/util/FlowControlWriter.java
@@ -1,6 +1,6 @@
// This file is part of the program FRYSK.
//
-// Copyright 2007, 2008, Red Hat Inc.
+// Copyright 2008 Red Hat Inc.
//
// FRYSK is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
@@ -37,60 +37,119 @@
// version and license this file solely under the GPL without
// exception.
-package frysk.testbed;
+package frysk.util;
-import java.util.Set;
-import java.util.HashSet;
-import java.util.Iterator;
-import frysk.expunit.Expect;
-import java.io.File;
-import frysk.rsl.Log;
+import java.io.FilterWriter;
+import java.io.IOException;
+import java.io.Writer;
/**
- * Framework for cleaning up temporary processes created as part of a
- * test run.
+ * Extension of Writer that allows output to be paused.
*/
+public class FlowControlWriter extends FilterWriter {
+ private Writer outStream;
+ private boolean paused = false;
-public class TearDownExpect extends Expect {
- private static final Log fine = Log.fine(TearDownExpect.class);
- public TearDownExpect(String[] args) {
- super(args);
- add(this);
+ /**
+ * @param out
+ */
+ public FlowControlWriter(Writer outStream) {
+ super(outStream);
+ this.outStream = outStream;
}
- public TearDownExpect(File program) {
- super(program);
- add(this);
+
+ public synchronized boolean isPaused() {
+ return paused;
}
- public TearDownExpect(String command) {
- super(command);
- add(this);
+
+ public synchronized void pause() {
+ paused = true;
+ }
+
+ public synchronized void unpause() {
+ paused = false;
+ notifyAll();
+ }
+
+ public synchronized void flush () {
+ while (paused) {
+ try {
+ wait();
+ }
+ catch (InterruptedException e) {
+
+ }
+ }
+ try {
+ outStream.flush();
+ }
+ catch (IOException e) {
+ }
}
- /**
- * Collection of expect classes.
- */
- private static Set expects = new HashSet();
- /**
- * Add the Expect class to the collection of things that should be
- * blown away.
- */
- private static void add (Expect expect) {
- expects.add(expect);
- fine.log("add", expect);
- TearDownProcess.add(expect.getPid());
+ public synchronized void close() throws IOException {
+ while (paused) {
+ try {
+ wait();
+ }
+ catch (InterruptedException e) {
+
+ }
+ }
+ outStream.close();
+ super.close();
}
- public static void tearDown () {
- for (Iterator i = expects.iterator(); i.hasNext(); ) {
- Expect e = (Expect)i.next();
+ public synchronized void write(char[] buf, int offset, int len) throws IOException {
+ while (paused) {
try {
- e.close();
- fine.log("tearDown", e);
- } catch (RuntimeException r) {
- fine.log("tearDown", e, "failed", r);
- // Toss; teardown.
+ wait();
}
- i.remove();
+ catch (InterruptedException e) {
+
+ }
+ }
+ outStream.write(buf, offset, len);
+ try {
+ outStream.flush();
+ }
+ catch (IOException e) {
+ }
+ }
+
+ public synchronized void write(int b) throws IOException {
+ while (paused) {
+ try {
+ wait();
+ }
+ catch (InterruptedException e) {
+
+ }
+ }
+ outStream.write(b);
+ try {
+ outStream.flush();
+ }
+ catch (IOException e) {
+ }
+ }
+
+ public synchronized void write(String str, int offset, int len) throws IOException {
+ while (paused) {
+ try {
+ wait();
+ }
+ catch (InterruptedException e) {
+
+ }
+ }
+ outStream.write(str, offset, len);
+ try {
+ outStream.flush();
+ }
+ catch (IOException e) {
+
}
}
+
}
diff --git a/frysk-core/frysk/util/ObservingTerminal.java b/frysk-core/frysk/util/ObservingTerminal.java
index 3aa67e7..162be63 100644
--- a/frysk-core/frysk/util/ObservingTerminal.java
+++ b/frysk-core/frysk/util/ObservingTerminal.java
@@ -40,8 +40,6 @@
package frysk.util;
import java.io.*;
-import java.util.Observable;
-
import jline.ConsoleReader;
import frysk.sys.FileDescriptor;
@@ -49,33 +47,41 @@ import frysk.sys.FileDescriptor;
public class ObservingTerminal
extends PtyTerminal {
- public class ObservingTerminalObserver extends Observable {
- ObservingTerminal terminal;
- ObservingTerminalObserver(ObservingTerminal terminal) {
+ public class Observable extends java.util.Observable {
+ private final ObservingTerminal terminal;
+ Observable(ObservingTerminal terminal) {
this.terminal = terminal;
}
public void setChanged() {
super.setChanged();
}
+
+ public ObservingTerminal getTerminal() {
+ return terminal;
+ }
}
- final ObservingTerminalObserver observable;
+ final Observable observable;
boolean inputEntered = false;
+ public boolean getInputEntered() {
+ return inputEntered;
+ }
+
public ObservingTerminal(FileDescriptor fd) {
super(fd);
- observable = new ObservingTerminalObserver(this);
+ observable = new Observable(this);
}
public ObservingTerminal(File file) {
super(file);
- observable = new ObservingTerminalObserver(this);
+ observable = new Observable(this);
}
public ObservingTerminal(String string) {
super(string);
- observable = new ObservingTerminalObserver(this);
+ observable = new Observable(this);
}
public void beforeReadLine(ConsoleReader reader, String prompt,
@@ -95,7 +101,16 @@ public class ObservingTerminal
return result;
}
- public ObservingTerminalObserver getObservable() {
+
+ public void afterReadLine(ConsoleReader reader, String prompt,
+ Character mask) {
+ inputEntered = false;
+ observable.setChanged();
+ observable.notifyObservers();
+ super.afterReadLine(reader, prompt, mask);
+ }
+
+ public Observable getObservable() {
return observable;
}
diff --git a/frysk-gui/frysk/gui/monitor/ConsoleWidget.java b/frysk-gui/frysk/gui/monitor/ConsoleWidget.java
index 38c49af..30ab1a2 100644
--- a/frysk-gui/frysk/gui/monitor/ConsoleWidget.java
+++ b/frysk-gui/frysk/gui/monitor/ConsoleWidget.java
@@ -69,7 +69,7 @@ public class ConsoleWidget extends Bin {
try
{
- cli = new CLI("(frysk) ", new PrintStream( new FileOutputStream(new File(fname)) ) );
+ cli = new CLI("(frysk) ", new PrintWriter( new FileOutputStream(new File(fname)) ) );
}
catch (IOException ioe)
{
diff --git a/frysk-gui/frysk/vtecli/ConsoleWindow.java b/frysk-gui/frysk/vtecli/ConsoleWindow.java
index ae535cf..b2b69a7 100644
--- a/frysk-gui/frysk/vtecli/ConsoleWindow.java
+++ b/frysk-gui/frysk/vtecli/ConsoleWindow.java
@@ -74,7 +74,7 @@ public class ConsoleWindow
try
{
cli = new CLI("(frysk) ",
- new PrintStream(new FileOutputStream(new File(fname))));
+ new PrintWriter(new FileOutputStream(new File(fname))));
}
catch (IOException ioe)
{
hooks/post-receive
--
frysk system monitor/debugger
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