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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; | |
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28 | import org.eclipse.tracecompass.statesystem.core.exceptions.StateSystemDisposedException; |
29 | import org.eclipse.tracecompass.statesystem.core.interval.ITmfStateInterval; | |
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30 | import org.eclipse.tracecompass.tmf.core.signal.TmfSignalHandler; |
31 | import org.eclipse.tracecompass.tmf.core.signal.TmfTraceOpenedSignal; | |
32 | import org.eclipse.tracecompass.tmf.core.signal.TmfTraceSelectedSignal; | |
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33 | import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace; |
34 | import org.eclipse.tracecompass.tmf.core.trace.TmfTraceUtils; | |
35 | import org.eclipse.tracecompass.tmf.ui.viewers.tree.AbstractTmfTreeViewer; | |
36 | import org.eclipse.tracecompass.tmf.ui.viewers.tree.ITmfTreeColumnDataProvider; | |
37 | import org.eclipse.tracecompass.tmf.ui.viewers.tree.ITmfTreeViewerEntry; | |
38 | import org.eclipse.tracecompass.tmf.ui.viewers.tree.TmfTreeColumnData; | |
39 | import org.eclipse.tracecompass.tmf.ui.viewers.tree.TmfTreeViewerEntry; | |
40 | ||
41 | /** | |
42 | * Tree viewer to select which process to display in the kernel memory usage | |
43 | * chart. | |
44 | * | |
45 | * @author Mahdi Zolnouri | |
46 | * @author Wassim Nasrallah | |
47 | * @author Najib Arbaoui | |
48 | */ | |
49 | public class KernelMemoryUsageTreeViewer extends AbstractTmfTreeViewer { | |
50 | ||
51 | private KernelMemoryAnalysisModule fModule = null; | |
52 | private String fSelectedThread = null; | |
53 | private static final String[] COLUMN_NAMES = new String[] { | |
54 | Messages.KernelMemoryUsageComposite_ColumnTID, | |
55 | Messages.KernelMemoryUsageComposite_ColumnProcess | |
56 | }; | |
57 | ||
58 | /* A map that saves the mapping of a thread ID to its executable name */ | |
59 | private final Map<String, String> fProcessNameMap = new HashMap<>(); | |
60 | ||
61 | /** Provides label for the Kernel memory usage tree viewer cells */ | |
62 | protected static class KernelMemoryLabelProvider extends TreeLabelProvider { | |
63 | ||
64 | @Override | |
65 | public String getColumnText(Object element, int columnIndex) { | |
66 | KernelMemoryUsageEntry obj = (KernelMemoryUsageEntry) element; | |
67 | if (columnIndex == 0) { | |
68 | return obj.getTid(); | |
69 | } else if (columnIndex == 1) { | |
70 | return obj.getProcessName(); | |
71 | } | |
72 | return element.toString(); | |
73 | } | |
74 | } | |
75 | ||
76 | /** | |
77 | * Constructor | |
78 | * | |
79 | * @param parent | |
80 | * The parent composite that holds this viewer | |
81 | */ | |
82 | public KernelMemoryUsageTreeViewer(Composite parent) { | |
83 | super(parent, false); | |
84 | setLabelProvider(new KernelMemoryLabelProvider()); | |
85 | } | |
86 | ||
87 | @Override | |
88 | protected ITmfTreeColumnDataProvider getColumnDataProvider() { | |
89 | return new ITmfTreeColumnDataProvider() { | |
90 | ||
91 | @Override | |
92 | public List<TmfTreeColumnData> getColumnData() { | |
93 | /* All columns are sortable */ | |
94 | List<TmfTreeColumnData> columns = new ArrayList<>(); | |
95 | TmfTreeColumnData column = new TmfTreeColumnData(COLUMN_NAMES[0]); | |
96 | column.setComparator(new ViewerComparator() { | |
97 | @Override | |
98 | public int compare(Viewer viewer, Object e1, Object e2) { | |
99 | KernelMemoryUsageEntry n1 = (KernelMemoryUsageEntry) e1; | |
100 | KernelMemoryUsageEntry n2 = (KernelMemoryUsageEntry) e2; | |
101 | ||
102 | return n1.getTid().compareTo(n2.getTid()); | |
103 | } | |
104 | }); | |
105 | columns.add(column); | |
106 | column = new TmfTreeColumnData(COLUMN_NAMES[1]); | |
107 | column.setComparator(new ViewerComparator() { | |
108 | @Override | |
109 | public int compare(Viewer viewer, Object e1, Object e2) { | |
110 | KernelMemoryUsageEntry n1 = (KernelMemoryUsageEntry) e1; | |
111 | KernelMemoryUsageEntry n2 = (KernelMemoryUsageEntry) e2; | |
112 | ||
113 | return n1.getProcessName().compareTo(n2.getProcessName()); | |
114 | } | |
115 | }); | |
116 | columns.add(column); | |
117 | return columns; | |
118 | } | |
119 | }; | |
120 | } | |
121 | ||
122 | // ------------------------------------------------------------------------ | |
123 | // Operations | |
124 | // ------------------------------------------------------------------------ | |
125 | ||
126 | @Override | |
127 | protected void contentChanged(ITmfTreeViewerEntry rootEntry) { | |
128 | String selectedThread = fSelectedThread; | |
129 | if (selectedThread != null) { | |
130 | /* Find the selected thread among the inputs */ | |
131 | for (ITmfTreeViewerEntry entry : rootEntry.getChildren()) { | |
132 | if (entry instanceof KernelMemoryUsageEntry) { | |
133 | if (selectedThread.equals(((KernelMemoryUsageEntry) entry).getTid())) { | |
134 | List<ITmfTreeViewerEntry> list = Collections.singletonList(entry); | |
135 | super.setSelection(list); | |
136 | return; | |
137 | } | |
138 | } | |
139 | } | |
140 | } | |
141 | } | |
142 | ||
143 | @Override | |
144 | public void initializeDataSource() { | |
145 | /* Should not be called while trace is still null */ | |
146 | ITmfTrace trace = checkNotNull(getTrace()); | |
147 | ||
148 | fModule = TmfTraceUtils.getAnalysisModuleOfClass(trace, KernelMemoryAnalysisModule.class, KernelMemoryAnalysisModule.ID); | |
149 | if (fModule == null) { | |
150 | return; | |
151 | } | |
152 | fModule.schedule(); | |
153 | fModule.waitForInitialization(); | |
154 | fProcessNameMap.clear(); | |
155 | } | |
156 | ||
157 | @Override | |
158 | protected ITmfTreeViewerEntry updateElements(long start, long end, boolean isSelection) { | |
159 | if (isSelection || (start == end)) { | |
160 | return null; | |
161 | } | |
162 | KernelMemoryAnalysisModule module = fModule; | |
163 | if (getTrace() == null || module == null) { | |
164 | return null; | |
165 | } | |
166 | module.waitForInitialization(); | |
167 | ITmfStateSystem ss = module.getStateSystem(); | |
168 | if (ss == null) { | |
169 | return null; | |
170 | } | |
171 | ss.waitUntilBuilt(); | |
172 | TmfTreeViewerEntry root = new TmfTreeViewerEntry(""); //$NON-NLS-1$ | |
173 | List<ITmfTreeViewerEntry> entryList = root.getChildren(); | |
174 | ||
175 | try { | |
63949239 MK |
176 | long newStart = Math.max(start, ss.getStartTime()); |
177 | long newEnd = Math.min(end, ss.getCurrentEndTime()); | |
178 | if (ss.getStartTime() > newEnd || ss.getCurrentEndTime() < start) { | |
179 | return root; | |
180 | } | |
181 | List<ITmfStateInterval> memoryStates = ss.queryFullState(newStart); | |
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182 | List<Integer> threadQuarkList = ss.getSubAttributes(ITmfStateSystem.ROOT_ATTRIBUTE, false); |
183 | ||
184 | for (Integer threadQuark : threadQuarkList) { | |
185 | ITmfStateInterval threadMemoryInterval = memoryStates.get(threadQuark); | |
186 | if (threadMemoryInterval.getEndTime() < end) { | |
187 | String tid = ss.getAttributeName(threadQuark); | |
188 | String procname = getProcessName(tid); | |
189 | KernelMemoryUsageEntry obj = new KernelMemoryUsageEntry(tid, procname); | |
190 | entryList.add(obj); | |
191 | } | |
192 | } | |
ed48dc75 | 193 | } catch (StateSystemDisposedException e) { |
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194 | Activator.getDefault().logError(e.getMessage(), e); |
195 | } | |
196 | return root; | |
197 | } | |
198 | ||
199 | /* | |
200 | * Get the process name from its TID by using the LTTng kernel analysis | |
201 | * module | |
202 | */ | |
203 | private String getProcessName(String tid) { | |
204 | String execName = fProcessNameMap.get(tid); | |
205 | if (execName != null) { | |
206 | return execName; | |
207 | } | |
208 | if (tid.equals(KernelMemoryStateProvider.OTHER_TID)) { | |
209 | fProcessNameMap.put(tid, tid); | |
210 | return tid; | |
211 | } | |
212 | ITmfTrace trace = checkNotNull(getTrace()); | |
213 | KernelAnalysisModule kernelModule = TmfTraceUtils.getAnalysisModuleOfClass(trace, KernelAnalysisModule.class, KernelAnalysisModule.ID); | |
214 | if (kernelModule == null) { | |
215 | return tid; | |
216 | } | |
217 | execName = KernelThreadInformationProvider.getExecutableName(kernelModule, Integer.parseInt(tid)); | |
218 | if (execName == null) { | |
219 | return tid; | |
220 | } | |
221 | fProcessNameMap.put(tid, execName); | |
222 | return execName; | |
223 | } | |
224 | ||
225 | /** | |
226 | * Set the currently selected thread ID | |
227 | * | |
228 | * @param tid | |
229 | * The selected thread ID | |
230 | */ | |
231 | public void setSelectedThread(String tid) { | |
232 | fSelectedThread = tid; | |
233 | } | |
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234 | |
235 | @Override | |
236 | @TmfSignalHandler | |
237 | public void traceSelected(TmfTraceSelectedSignal signal) { | |
238 | setSelectedThread(null); | |
239 | super.traceSelected(signal); | |
240 | } | |
241 | ||
242 | @Override | |
243 | @TmfSignalHandler | |
244 | public void traceOpened(TmfTraceOpenedSignal signal) { | |
245 | setSelectedThread(null); | |
246 | super.traceOpened(signal); | |
247 | } | |
aa19e48b | 248 | } |