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/*******************************************************************************
* Copyright (c) 2008, 2010 Ericsson and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Ericsson - Initial API and implementation
* Wind River Systems - refactored to match pattern in package
* John Dallaway - GDB 7.x getOsId() pattern match too restrictive (Bug 325552)
*******************************************************************************/
package org.eclipse.cdt.dsf.mi.service.command.output;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.eclipse.cdt.dsf.concurrent.Immutable;
/**
* GDB/MI Thread tuple parsing.
*
* @since 1.1
*/
@Immutable
public class MIThread {
/** @since 4.1 */
public final static String MI_THREAD_STATE_RUNNING = "running"; //$NON-NLS-1$
/** @since 4.1 */
public final static String MI_THREAD_STATE_STOPPED = "stopped"; //$NON-NLS-1$
final private String fThreadId;
final private String fTargetId;
final private String fOsId;
final private String fParentId;
final private MIFrame fTopFrame;
final private String fDetails;
final private String fState;
final private String fCore;
private MIThread(String threadId, String targetId, String osId, String parentId,
MIFrame topFrame, String details, String state, String core) {
fThreadId = threadId;
fTargetId = targetId;
fOsId = osId;
fParentId = parentId;
fTopFrame = topFrame;
fDetails = details;
fState = state;
fCore = core;
}
public String getThreadId() { return fThreadId; }
public String getTargetId() { return fTargetId; }
public String getOsId() { return fOsId; }
public String getParentId() { return fParentId; }
public MIFrame getTopFrame() { return fTopFrame; }
public String getDetails() { return fDetails; }
public String getState() { return fState; }
/**
* Available since GDB 7.1
* @since 4.0
*/
public String getCore() { return fCore; }
public static MIThread parse(MITuple tuple) {
MIResult[] results = tuple.getMIResults();
String threadId = null;
String targetId = null;
String osId = null;
String parentId = null;
MIFrame topFrame = null;
String state = null;
String details = null;
String core = null;
for (int j = 0; j < results.length; j++) {
MIResult result = results[j];
String var = result.getVariable();
if (var.equals("id")) { //$NON-NLS-1$
MIValue val = results[j].getMIValue();
if (val instanceof MIConst) {
threadId = ((MIConst) val).getCString().trim();
}
}
else if (var.equals("target-id")) { //$NON-NLS-1$
MIValue val = results[j].getMIValue();
if (val instanceof MIConst) {
targetId = ((MIConst) val).getCString().trim();
osId = parseOsId(targetId);
parentId = parseParentId(targetId);
}
}
else if (var.equals("frame")) { //$NON-NLS-1$
MITuple val = (MITuple)results[j].getMIValue();
topFrame = new MIFrame(val);
}
else if (var.equals("state")) { //$NON-NLS-1$
MIValue val = results[j].getMIValue();
if (val instanceof MIConst) {
state = ((MIConst) val).getCString().trim();
}
}
else if (var.equals("details")) { //$NON-NLS-1$
MIValue val = results[j].getMIValue();
if (val instanceof MIConst) {
details = ((MIConst) val).getCString().trim();
}
}
else if (var.equals("core")) { //$NON-NLS-1$
MIValue val = results[j].getMIValue();
if (val instanceof MIConst) {
core = ((MIConst) val).getCString().trim();
}
}
}
return new MIThread(threadId, targetId, osId, parentId, topFrame, details, state, core);
}
// Note that windows gdbs returns lower case "thread" , so the matcher needs to be case-insensitive.
private static Pattern fgOsIdPattern1 = Pattern.compile("([Tt][Hh][Rr][Ee][Aa][Dd]\\s*)(0x[0-9a-fA-F]+|-?\\d+)(\\s*\\([Ll][Ww][Pp]\\s*)(\\d*)", 0); //$NON-NLS-1$
private static Pattern fgOsIdPattern2 = Pattern.compile("[Tt][Hh][Rr][Ee][Aa][Dd]\\s*\\d+\\.(\\d+)", 0); //$NON-NLS-1$
private static Pattern fgOsIdPattern3 = Pattern.compile("[Tt][Hh][Rr][Ee][Aa][Dd]\\s*(\\S+)", 0); //$NON-NLS-1$
static String parseOsId(String str) {
// General format:
// "Thread 0xb7c8ab90 (LWP 7010)"
// ^^^^
// "Thread 162.32942"
// ^^^^^
// "thread abc123"
// ^^^^^^
// PLEASE UPDATE MIThreadTests.java IF YOU TWEAK THIS CODE
Matcher matcher = fgOsIdPattern1.matcher(str);
if (matcher.find()) {
return matcher.group(4);
}
matcher = fgOsIdPattern2.matcher(str);
if (matcher.find()) {
return matcher.group(1);
}
matcher = fgOsIdPattern3.matcher(str);
if (matcher.find()) {
return matcher.group(1);
}
return null;
}
private static Pattern fgIdPattern = Pattern.compile("[Tt][Hh][Rr][Ee][Aa][Dd]\\s*(\\d+)\\.\\d+", 0); //$NON-NLS-1$
/**
* This is used to parse the same ID fed to {@link #parseOsId(String)}. The
* difference is that we return the first portion when the ID is in format
* "Thread pppp.tttt". If the ID is not in that format, we return null.
*/
static String parseParentId(String str) {
// General format:
// "Thread 162.32942"
// ^^^
// PLEASE UPDATE MIThreadTests.java IF YOU TWEAK THIS CODE
Matcher matcher = fgIdPattern.matcher(str);
if (matcher.find()) {
return matcher.group(1);
}
return null;
}
}
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