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1 | /********************************************************************** |
2 | * Copyright (c) 2016 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 | package org.eclipse.tracecompass.internal.analysis.os.linux.ui.views.kernelmemoryusage; | |
10 | ||
11 | import static org.eclipse.tracecompass.common.core.NonNullUtils.checkNotNull; | |
12 | ||
13 | import java.util.ArrayList; | |
14 | import java.util.Collections; | |
15 | import java.util.HashMap; | |
16 | import java.util.List; | |
17 | import java.util.Map; | |
18 | ||
19 | import org.eclipse.jface.viewers.Viewer; | |
20 | import org.eclipse.jface.viewers.ViewerComparator; | |
21 | import org.eclipse.swt.widgets.Composite; | |
22 | import org.eclipse.tracecompass.analysis.os.linux.core.kernel.KernelAnalysisModule; | |
23 | import org.eclipse.tracecompass.analysis.os.linux.core.kernel.KernelThreadInformationProvider; | |
24 | import org.eclipse.tracecompass.analysis.os.linux.core.kernelmemoryusage.KernelMemoryAnalysisModule; | |
25 | import org.eclipse.tracecompass.analysis.os.linux.core.kernelmemoryusage.KernelMemoryStateProvider; | |
26 | import org.eclipse.tracecompass.internal.analysis.os.linux.ui.Activator; | |
27 | import org.eclipse.tracecompass.statesystem.core.ITmfStateSystem; | |
28 | import org.eclipse.tracecompass.statesystem.core.exceptions.AttributeNotFoundException; | |
29 | import org.eclipse.tracecompass.statesystem.core.exceptions.StateSystemDisposedException; | |
30 | import org.eclipse.tracecompass.statesystem.core.interval.ITmfStateInterval; | |
31 | import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace; | |
32 | import org.eclipse.tracecompass.tmf.core.trace.TmfTraceUtils; | |
33 | import org.eclipse.tracecompass.tmf.ui.viewers.tree.AbstractTmfTreeViewer; | |
34 | import org.eclipse.tracecompass.tmf.ui.viewers.tree.ITmfTreeColumnDataProvider; | |
35 | import org.eclipse.tracecompass.tmf.ui.viewers.tree.ITmfTreeViewerEntry; | |
36 | import org.eclipse.tracecompass.tmf.ui.viewers.tree.TmfTreeColumnData; | |
37 | import org.eclipse.tracecompass.tmf.ui.viewers.tree.TmfTreeViewerEntry; | |
38 | ||
39 | /** | |
40 | * Tree viewer to select which process to display in the kernel memory usage | |
41 | * chart. | |
42 | * | |
43 | * @author Mahdi Zolnouri | |
44 | * @author Wassim Nasrallah | |
45 | * @author Najib Arbaoui | |
46 | */ | |
47 | public class KernelMemoryUsageTreeViewer extends AbstractTmfTreeViewer { | |
48 | ||
49 | private KernelMemoryAnalysisModule fModule = null; | |
50 | private String fSelectedThread = null; | |
51 | private static final String[] COLUMN_NAMES = new String[] { | |
52 | Messages.KernelMemoryUsageComposite_ColumnTID, | |
53 | Messages.KernelMemoryUsageComposite_ColumnProcess | |
54 | }; | |
55 | ||
56 | /* A map that saves the mapping of a thread ID to its executable name */ | |
57 | private final Map<String, String> fProcessNameMap = new HashMap<>(); | |
58 | ||
59 | /** Provides label for the Kernel memory usage tree viewer cells */ | |
60 | protected static class KernelMemoryLabelProvider extends TreeLabelProvider { | |
61 | ||
62 | @Override | |
63 | public String getColumnText(Object element, int columnIndex) { | |
64 | KernelMemoryUsageEntry obj = (KernelMemoryUsageEntry) element; | |
65 | if (columnIndex == 0) { | |
66 | return obj.getTid(); | |
67 | } else if (columnIndex == 1) { | |
68 | return obj.getProcessName(); | |
69 | } | |
70 | return element.toString(); | |
71 | } | |
72 | } | |
73 | ||
74 | /** | |
75 | * Constructor | |
76 | * | |
77 | * @param parent | |
78 | * The parent composite that holds this viewer | |
79 | */ | |
80 | public KernelMemoryUsageTreeViewer(Composite parent) { | |
81 | super(parent, false); | |
82 | setLabelProvider(new KernelMemoryLabelProvider()); | |
83 | } | |
84 | ||
85 | @Override | |
86 | protected ITmfTreeColumnDataProvider getColumnDataProvider() { | |
87 | return new ITmfTreeColumnDataProvider() { | |
88 | ||
89 | @Override | |
90 | public List<TmfTreeColumnData> getColumnData() { | |
91 | /* All columns are sortable */ | |
92 | List<TmfTreeColumnData> columns = new ArrayList<>(); | |
93 | TmfTreeColumnData column = new TmfTreeColumnData(COLUMN_NAMES[0]); | |
94 | column.setComparator(new ViewerComparator() { | |
95 | @Override | |
96 | public int compare(Viewer viewer, Object e1, Object e2) { | |
97 | KernelMemoryUsageEntry n1 = (KernelMemoryUsageEntry) e1; | |
98 | KernelMemoryUsageEntry n2 = (KernelMemoryUsageEntry) e2; | |
99 | ||
100 | return n1.getTid().compareTo(n2.getTid()); | |
101 | } | |
102 | }); | |
103 | columns.add(column); | |
104 | column = new TmfTreeColumnData(COLUMN_NAMES[1]); | |
105 | column.setComparator(new ViewerComparator() { | |
106 | @Override | |
107 | public int compare(Viewer viewer, Object e1, Object e2) { | |
108 | KernelMemoryUsageEntry n1 = (KernelMemoryUsageEntry) e1; | |
109 | KernelMemoryUsageEntry n2 = (KernelMemoryUsageEntry) e2; | |
110 | ||
111 | return n1.getProcessName().compareTo(n2.getProcessName()); | |
112 | } | |
113 | }); | |
114 | columns.add(column); | |
115 | return columns; | |
116 | } | |
117 | }; | |
118 | } | |
119 | ||
120 | // ------------------------------------------------------------------------ | |
121 | // Operations | |
122 | // ------------------------------------------------------------------------ | |
123 | ||
124 | @Override | |
125 | protected void contentChanged(ITmfTreeViewerEntry rootEntry) { | |
126 | String selectedThread = fSelectedThread; | |
127 | if (selectedThread != null) { | |
128 | /* Find the selected thread among the inputs */ | |
129 | for (ITmfTreeViewerEntry entry : rootEntry.getChildren()) { | |
130 | if (entry instanceof KernelMemoryUsageEntry) { | |
131 | if (selectedThread.equals(((KernelMemoryUsageEntry) entry).getTid())) { | |
132 | List<ITmfTreeViewerEntry> list = Collections.singletonList(entry); | |
133 | super.setSelection(list); | |
134 | return; | |
135 | } | |
136 | } | |
137 | } | |
138 | } | |
139 | } | |
140 | ||
141 | @Override | |
142 | public void initializeDataSource() { | |
143 | /* Should not be called while trace is still null */ | |
144 | ITmfTrace trace = checkNotNull(getTrace()); | |
145 | ||
146 | fModule = TmfTraceUtils.getAnalysisModuleOfClass(trace, KernelMemoryAnalysisModule.class, KernelMemoryAnalysisModule.ID); | |
147 | if (fModule == null) { | |
148 | return; | |
149 | } | |
150 | fModule.schedule(); | |
151 | fModule.waitForInitialization(); | |
152 | fProcessNameMap.clear(); | |
153 | } | |
154 | ||
155 | @Override | |
156 | protected ITmfTreeViewerEntry updateElements(long start, long end, boolean isSelection) { | |
157 | if (isSelection || (start == end)) { | |
158 | return null; | |
159 | } | |
160 | KernelMemoryAnalysisModule module = fModule; | |
161 | if (getTrace() == null || module == null) { | |
162 | return null; | |
163 | } | |
164 | module.waitForInitialization(); | |
165 | ITmfStateSystem ss = module.getStateSystem(); | |
166 | if (ss == null) { | |
167 | return null; | |
168 | } | |
169 | ss.waitUntilBuilt(); | |
170 | TmfTreeViewerEntry root = new TmfTreeViewerEntry(""); //$NON-NLS-1$ | |
171 | List<ITmfTreeViewerEntry> entryList = root.getChildren(); | |
172 | ||
173 | try { | |
174 | List<ITmfStateInterval> memoryStates = ss.queryFullState(start); | |
175 | List<Integer> threadQuarkList = ss.getSubAttributes(ITmfStateSystem.ROOT_ATTRIBUTE, false); | |
176 | ||
177 | for (Integer threadQuark : threadQuarkList) { | |
178 | ITmfStateInterval threadMemoryInterval = memoryStates.get(threadQuark); | |
179 | if (threadMemoryInterval.getEndTime() < end) { | |
180 | String tid = ss.getAttributeName(threadQuark); | |
181 | String procname = getProcessName(tid); | |
182 | KernelMemoryUsageEntry obj = new KernelMemoryUsageEntry(tid, procname); | |
183 | entryList.add(obj); | |
184 | } | |
185 | } | |
186 | } catch (StateSystemDisposedException | AttributeNotFoundException e) { | |
187 | Activator.getDefault().logError(e.getMessage(), e); | |
188 | } | |
189 | return root; | |
190 | } | |
191 | ||
192 | /* | |
193 | * Get the process name from its TID by using the LTTng kernel analysis | |
194 | * module | |
195 | */ | |
196 | private String getProcessName(String tid) { | |
197 | String execName = fProcessNameMap.get(tid); | |
198 | if (execName != null) { | |
199 | return execName; | |
200 | } | |
201 | if (tid.equals(KernelMemoryStateProvider.OTHER_TID)) { | |
202 | fProcessNameMap.put(tid, tid); | |
203 | return tid; | |
204 | } | |
205 | ITmfTrace trace = checkNotNull(getTrace()); | |
206 | KernelAnalysisModule kernelModule = TmfTraceUtils.getAnalysisModuleOfClass(trace, KernelAnalysisModule.class, KernelAnalysisModule.ID); | |
207 | if (kernelModule == null) { | |
208 | return tid; | |
209 | } | |
210 | execName = KernelThreadInformationProvider.getExecutableName(kernelModule, Integer.parseInt(tid)); | |
211 | if (execName == null) { | |
212 | return tid; | |
213 | } | |
214 | fProcessNameMap.put(tid, execName); | |
215 | return execName; | |
216 | } | |
217 | ||
218 | /** | |
219 | * Set the currently selected thread ID | |
220 | * | |
221 | * @param tid | |
222 | * The selected thread ID | |
223 | */ | |
224 | public void setSelectedThread(String tid) { | |
225 | fSelectedThread = tid; | |
226 | } | |
227 | } |