projects / deliverable / tracecompass.git / blame
| Commit | Line | Data |
|---|---|---|
| 866e5b51 FC |
1 | /******************************************************************************* |
| 2 | * Copyright (c) 2011-2012 Ericsson, Ecole Polytechnique de Montreal and others | |
| 3 | * | |
| 4 | * All rights reserved. This program and the accompanying materials are made | |
| 5 | * available under the terms of the Eclipse Public License v1.0 which | |
| 6 | * accompanies this distribution, and is available at | |
| 7 | * http://www.eclipse.org/legal/epl-v10.html | |
| 8 | * | |
| 9 | * Contributors: Matthew Khouzam - Initial API and implementation | |
| 10 | * Contributors: Simon Marchi - Initial API and implementation | |
| 11 | *******************************************************************************/ | |
| 12 | ||
| 13 | package org.eclipse.linuxtools.ctf.core.trace; | |
| 14 | ||
| 15 | import java.io.Serializable; | |
| 16 | import java.util.Comparator; | |
| 17 | ||
| 18 | /** | |
| 19 | * <b><u>StreamInputReaderTimestampComparator</u></b> | |
| 20 | * <p> | |
| 21 | * Compares two StreamInputReader by their timestamp (smaller comes before). | |
| 22 | */ | |
| 23 | public class StreamInputReaderTimestampComparator implements | |
| 24 | Comparator<StreamInputReader>, Serializable { | |
| 25 | ||
| 26 | // ------------------------------------------------------------------------ | |
| 27 | // Constants | |
| 28 | // ------------------------------------------------------------------------ | |
| 29 | ||
| 30 | private static final long serialVersionUID = 1066434959451875045L; | |
| 31 | ||
| 32 | // ------------------------------------------------------------------------ | |
| 33 | // Operations | |
| 34 | // ------------------------------------------------------------------------ | |
| 35 | ||
| 36 | @Override | |
| 37 | public int compare(StreamInputReader a, StreamInputReader b) { | |
| 38 | // TODO: use unsigned comparison to avoid sign errors if needed | |
| 39 | if (a.getCurrentEvent() == null) { | |
| 40 | return 0; | |
| 41 | } | |
| 42 | if (b.getCurrentEvent() == null) { | |
| 43 | return 0; | |
| 44 | } | |
| 45 | long ta = a.getCurrentEvent().timestamp; | |
| 46 | long tb = b.getCurrentEvent().timestamp; | |
| 47 | ||
| 48 | if (ta < tb) { | |
| 49 | return -1; | |
| 50 | } else if (ta > tb) { | |
| 51 | return 1; | |
| 52 | } else { | |
| 53 | return 0; | |
| 54 | } | |
| 55 | } | |
| 56 | ||
| 57 | } |