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2237fe8a | 1 | /********************************************************************** |
ed48dc75 | 2 | * Copyright (c) 2014, 2016 Ericsson, École Polytechnique de Montréal |
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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 | * Matthew Khouzam - Initial API and implementation | |
11 | * Geneviève Bastien - Memory is per thread and only total is kept | |
12 | **********************************************************************/ | |
13 | ||
116738ad | 14 | package org.eclipse.tracecompass.internal.lttng2.ust.core.analysis.memory; |
2237fe8a | 15 | |
d0c7e4ba AM |
16 | import static org.eclipse.tracecompass.common.core.NonNullUtils.checkNotNull; |
17 | ||
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18 | import java.util.HashMap; |
19 | import java.util.Map; | |
20 | ||
d0c7e4ba | 21 | import org.eclipse.jdt.annotation.NonNull; |
9bc60be7 | 22 | import org.eclipse.tracecompass.lttng2.ust.core.trace.LttngUstTrace; |
7e452c97 | 23 | import org.eclipse.tracecompass.lttng2.ust.core.trace.layout.ILttngUstEventLayout; |
d0c7e4ba | 24 | import org.eclipse.tracecompass.statesystem.core.ITmfStateSystemBuilder; |
e894a508 AM |
25 | import org.eclipse.tracecompass.statesystem.core.exceptions.StateValueTypeException; |
26 | import org.eclipse.tracecompass.statesystem.core.exceptions.TimeRangeException; | |
27 | import org.eclipse.tracecompass.statesystem.core.statevalue.ITmfStateValue; | |
28 | import org.eclipse.tracecompass.statesystem.core.statevalue.TmfStateValue; | |
2bdf0193 AM |
29 | import org.eclipse.tracecompass.tmf.core.event.ITmfEvent; |
30 | import org.eclipse.tracecompass.tmf.core.event.ITmfEventField; | |
31 | import org.eclipse.tracecompass.tmf.core.statesystem.AbstractTmfStateProvider; | |
32 | import org.eclipse.tracecompass.tmf.core.statesystem.ITmfStateProvider; | |
2237fe8a | 33 | |
7e452c97 AM |
34 | import com.google.common.collect.ImmutableMap; |
35 | ||
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36 | /** |
37 | * State provider to track the memory of the threads using the UST libc wrapper | |
38 | * memory events. | |
39 | * | |
40 | * @author Matthew Khouzam | |
41 | * @author Geneviève Bastien | |
42 | */ | |
116738ad | 43 | public class UstMemoryStateProvider extends AbstractTmfStateProvider { |
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44 | |
45 | /* Version of this state provider */ | |
46 | private static final int VERSION = 1; | |
47 | ||
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48 | private static final Long MINUS_ONE = Long.valueOf(-1); |
49 | private static final Long ZERO = Long.valueOf(0); | |
50 | private static final String EMPTY_STRING = ""; //$NON-NLS-1$ | |
51 | ||
7e452c97 AM |
52 | private static final int MALLOC_INDEX = 1; |
53 | private static final int FREE_INDEX = 2; | |
54 | private static final int CALLOC_INDEX = 3; | |
55 | private static final int REALLOC_INDEX = 4; | |
56 | private static final int MEMALIGN_INDEX = 5; | |
57 | private static final int POSIX_MEMALIGN_INDEX = 6; | |
58 | ||
59 | /** Map of a pointer to a memory zone to the size of the memory */ | |
60 | private final Map<Long, Long> fMemory = new HashMap<>(); | |
61 | ||
62 | private final @NonNull ILttngUstEventLayout fLayout; | |
63 | private final @NonNull Map<String, Integer> fEventNames; | |
64 | ||
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65 | /** |
66 | * Constructor | |
67 | * | |
68 | * @param trace | |
69 | * trace | |
70 | */ | |
116738ad | 71 | public UstMemoryStateProvider(@NonNull LttngUstTrace trace) { |
e2bcc8a5 | 72 | super(trace, "Ust:Memory"); //$NON-NLS-1$ |
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73 | fLayout = trace.getEventLayout(); |
74 | fEventNames = buildEventNames(fLayout); | |
75 | } | |
76 | ||
77 | private static @NonNull Map<String, Integer> buildEventNames(ILttngUstEventLayout layout) { | |
78 | ImmutableMap.Builder<String, Integer> builder = ImmutableMap.builder(); | |
79 | builder.put(layout.eventLibcMalloc(), MALLOC_INDEX); | |
80 | builder.put(layout.eventLibcFree(), FREE_INDEX); | |
81 | builder.put(layout.eventLibcCalloc(), CALLOC_INDEX); | |
82 | builder.put(layout.eventLibcRealloc(), REALLOC_INDEX); | |
83 | builder.put(layout.eventLibcMemalign(), MEMALIGN_INDEX); | |
84 | builder.put(layout.eventLibcPosixMemalign(), POSIX_MEMALIGN_INDEX); | |
0e4f957e | 85 | return builder.build(); |
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86 | } |
87 | ||
88 | @Override | |
89 | protected void eventHandle(ITmfEvent event) { | |
578716e6 | 90 | String name = event.getName(); |
7e452c97 AM |
91 | Integer index = fEventNames.get(name); |
92 | int intIndex = (index == null ? -1 : index.intValue()); | |
93 | ||
94 | switch (intIndex) { | |
95 | case MALLOC_INDEX: { | |
96 | Long ptr = (Long) event.getContent().getField(fLayout.fieldPtr()).getValue(); | |
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97 | if (ZERO.equals(ptr)) { |
98 | return; | |
99 | } | |
7e452c97 | 100 | Long size = (Long) event.getContent().getField(fLayout.fieldSize()).getValue(); |
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101 | setMem(event, ptr, size); |
102 | } | |
103 | break; | |
7e452c97 AM |
104 | case FREE_INDEX: { |
105 | Long ptr = (Long) event.getContent().getField(fLayout.fieldPtr()).getValue(); | |
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106 | if (ZERO.equals(ptr)) { |
107 | return; | |
108 | } | |
109 | setMem(event, ptr, ZERO); | |
110 | } | |
111 | break; | |
7e452c97 AM |
112 | case CALLOC_INDEX: { |
113 | Long ptr = (Long) event.getContent().getField(fLayout.fieldPtr()).getValue(); | |
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114 | if (ZERO.equals(ptr)) { |
115 | return; | |
116 | } | |
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117 | Long nmemb = (Long) event.getContent().getField(fLayout.fieldNmemb()).getValue(); |
118 | Long size = (Long) event.getContent().getField(fLayout.fieldSize()).getValue(); | |
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119 | setMem(event, ptr, size * nmemb); |
120 | } | |
121 | break; | |
7e452c97 AM |
122 | case REALLOC_INDEX: { |
123 | Long ptr = (Long) event.getContent().getField(fLayout.fieldPtr()).getValue(); | |
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124 | if (ZERO.equals(ptr)) { |
125 | return; | |
126 | } | |
7e452c97 AM |
127 | Long newPtr = (Long) event.getContent().getField(fLayout.fieldInPtr()).getValue(); |
128 | Long size = (Long) event.getContent().getField(fLayout.fieldSize()).getValue(); | |
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129 | setMem(event, ptr, ZERO); |
130 | setMem(event, newPtr, size); | |
131 | } | |
132 | break; | |
7e452c97 AM |
133 | case MEMALIGN_INDEX: { |
134 | Long ptr = (Long) event.getContent().getField(fLayout.fieldPtr()).getValue(); | |
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135 | if (ZERO.equals(ptr)) { |
136 | return; | |
137 | } | |
7e452c97 | 138 | Long size = (Long) event.getContent().getField(fLayout.fieldSize()).getValue(); |
2237fe8a GB |
139 | setMem(event, ptr, size); |
140 | } | |
141 | break; | |
7e452c97 AM |
142 | case POSIX_MEMALIGN_INDEX: { |
143 | Long ptr = (Long) event.getContent().getField(fLayout.fieldOutPtr()).getValue(); | |
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144 | if (ZERO.equals(ptr)) { |
145 | return; | |
146 | } | |
7e452c97 | 147 | Long size = (Long) event.getContent().getField(fLayout.fieldSize()).getValue(); |
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148 | setMem(event, ptr, size); |
149 | } | |
150 | break; | |
151 | default: | |
7e452c97 | 152 | /* Ignore other event types */ |
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153 | break; |
154 | } | |
155 | ||
156 | } | |
157 | ||
158 | @Override | |
159 | public ITmfStateProvider getNewInstance() { | |
116738ad | 160 | return new UstMemoryStateProvider(getTrace()); |
2237fe8a GB |
161 | } |
162 | ||
163 | @Override | |
164 | public LttngUstTrace getTrace() { | |
165 | return (LttngUstTrace) super.getTrace(); | |
166 | } | |
167 | ||
168 | @Override | |
169 | public int getVersion() { | |
170 | return VERSION; | |
171 | } | |
172 | ||
7e452c97 AM |
173 | private Long getVtid(ITmfEvent event) { |
174 | ITmfEventField field = event.getContent().getField(fLayout.contextVtid()); | |
2237fe8a GB |
175 | if (field == null) { |
176 | return MINUS_ONE; | |
177 | } | |
178 | return (Long) field.getValue(); | |
179 | } | |
180 | ||
7e452c97 AM |
181 | private String getProcname(ITmfEvent event) { |
182 | ITmfEventField field = event.getContent().getField(fLayout.contextProcname()); | |
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183 | if (field == null) { |
184 | return EMPTY_STRING; | |
185 | } | |
186 | return (String) field.getValue(); | |
187 | } | |
188 | ||
189 | private void setMem(ITmfEvent event, Long ptr, Long size) { | |
d0c7e4ba | 190 | ITmfStateSystemBuilder ss = checkNotNull(getStateSystemBuilder()); |
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191 | long ts = event.getTimestamp().getValue(); |
192 | Long tid = getVtid(event); | |
193 | ||
194 | Long memoryDiff = size; | |
195 | /* Size is 0, it means it was deleted */ | |
196 | if (ZERO.equals(size)) { | |
197 | Long memSize = fMemory.remove(ptr); | |
198 | if (memSize == null) { | |
199 | return; | |
200 | } | |
201 | memoryDiff = -memSize; | |
202 | } else { | |
203 | fMemory.put(ptr, size); | |
204 | } | |
205 | try { | |
206 | int tidQuark = ss.getQuarkAbsoluteAndAdd(tid.toString()); | |
207 | int tidMemQuark = ss.getQuarkRelativeAndAdd(tidQuark, UstMemoryStrings.UST_MEMORY_MEMORY_ATTRIBUTE); | |
208 | ||
209 | ITmfStateValue prevMem = ss.queryOngoingState(tidMemQuark); | |
210 | /* First time we set this value */ | |
211 | if (prevMem.isNull()) { | |
212 | int procNameQuark = ss.getQuarkRelativeAndAdd(tidQuark, UstMemoryStrings.UST_MEMORY_PROCNAME_ATTRIBUTE); | |
213 | String procName = getProcname(event); | |
214 | /* | |
215 | * No tid/procname for the event for the event, added to a | |
216 | * 'others' thread | |
217 | */ | |
218 | if (tid.equals(MINUS_ONE)) { | |
219 | procName = UstMemoryStrings.OTHERS; | |
220 | } | |
221 | ss.modifyAttribute(ts, TmfStateValue.newValueString(procName), procNameQuark); | |
222 | prevMem = TmfStateValue.newValueLong(0); | |
223 | } | |
224 | ||
225 | long prevMemValue = prevMem.unboxLong(); | |
226 | prevMemValue += memoryDiff.longValue(); | |
227 | ss.modifyAttribute(ts, TmfStateValue.newValueLong(prevMemValue), tidMemQuark); | |
ed48dc75 | 228 | } catch (TimeRangeException | StateValueTypeException e) { |
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229 | throw new IllegalStateException(e); |
230 | } | |
231 | } | |
232 | ||
233 | } |