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1 | /******************************************************************************* |
2 | * Copyright (c) 2014 École Polytechnique de Montréal | |
3 | * | |
4 | * All rights reserved. This program and the accompanying materials are | |
5 | * made 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: | |
10 | * Geneviève Bastien - Initial API and implementation | |
11 | *******************************************************************************/ | |
12 | ||
a6145763 | 13 | package org.eclipse.tracecompass.analysis.os.linux.core.model; |
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14 | |
15 | import org.eclipse.jdt.annotation.Nullable; | |
16 | import org.eclipse.tracecompass.common.core.NonNullUtils; | |
17 | ||
18 | import com.google.common.hash.HashFunction; | |
19 | import com.google.common.hash.Hashing; | |
20 | ||
21 | /** | |
22 | * This class represents a thread from a specific host. Many machines in an | |
23 | * experiment can have the same thread IDs. This class differentiates the | |
24 | * threads by adding the host ID it belongs to. | |
25 | * | |
26 | * @author Geneviève Bastien | |
dbc7991d | 27 | * @since 1.0 |
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28 | */ |
29 | public class HostThread { | |
30 | ||
31 | private static final HashFunction HF = NonNullUtils.checkNotNull(Hashing.goodFastHash(32)); | |
32 | ||
33 | private final String fHost; | |
34 | private final Integer fTid; | |
35 | ||
36 | /** | |
37 | * Constructor | |
38 | * | |
39 | * @param host | |
40 | * The host this thread belongs to | |
41 | * @param tid | |
42 | * The thread ID of this thread | |
43 | */ | |
44 | public HostThread(String host, Integer tid) { | |
45 | fHost = host; | |
46 | fTid = tid; | |
47 | } | |
48 | ||
49 | @Override | |
50 | public int hashCode() { | |
51 | return HF.newHasher() | |
52 | .putUnencodedChars(fHost) | |
53 | .putInt(fTid).hash().asInt(); | |
54 | } | |
55 | ||
56 | @Override | |
57 | public boolean equals(@Nullable Object o) { | |
58 | if (o instanceof HostThread) { | |
59 | HostThread hostTid = (HostThread) o; | |
60 | if (fTid.equals(hostTid.fTid) && | |
61 | fHost.equals(hostTid.fHost)) { | |
62 | return true; | |
63 | } | |
64 | } | |
65 | return false; | |
66 | } | |
67 | ||
68 | @Override | |
69 | public String toString() { | |
70 | return "HostTid: [" + fHost + ',' + fTid + ']'; //$NON-NLS-1$ | |
71 | } | |
72 | ||
73 | /** | |
74 | * Get the thread ID of this thread | |
75 | * | |
76 | * @return The thread ID of this thread | |
77 | */ | |
78 | public Integer getTid() { | |
79 | return fTid; | |
80 | } | |
81 | ||
82 | /** | |
83 | * Get the host ID of the machine this thread belongs to | |
84 | * | |
85 | * @return The host ID this thread belongs to | |
86 | */ | |
87 | public String getHost() { | |
88 | return fHost; | |
89 | } | |
90 | ||
91 | } |