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1 | /********************************************************************** |
2 | * Copyright (c) 2014 Ericsson, 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 | * Matthew Khouzam - Initial API and implementation | |
11 | * Geneviève Bastien - Memory is per thread and only total is kept | |
12 | **********************************************************************/ | |
13 | ||
14 | package org.eclipse.linuxtools.internal.lttng2.ust.core.memoryusage; | |
15 | ||
16 | import java.util.HashMap; | |
17 | import java.util.Map; | |
18 | ||
19 | import org.eclipse.linuxtools.lttng2.ust.core.trace.LttngUstTrace; | |
2237fe8a GB |
20 | import org.eclipse.linuxtools.tmf.core.event.ITmfEvent; |
21 | import org.eclipse.linuxtools.tmf.core.event.ITmfEventField; | |
22 | import org.eclipse.linuxtools.tmf.core.exceptions.AttributeNotFoundException; | |
23 | import org.eclipse.linuxtools.tmf.core.exceptions.StateValueTypeException; | |
24 | import org.eclipse.linuxtools.tmf.core.exceptions.TimeRangeException; | |
25 | import org.eclipse.linuxtools.tmf.core.statesystem.AbstractTmfStateProvider; | |
26 | import org.eclipse.linuxtools.tmf.core.statesystem.ITmfStateProvider; | |
27 | import org.eclipse.linuxtools.tmf.core.statevalue.ITmfStateValue; | |
28 | import org.eclipse.linuxtools.tmf.core.statevalue.TmfStateValue; | |
91e7f946 | 29 | import org.eclipse.linuxtools.tmf.ctf.core.CtfTmfEvent; |
2237fe8a GB |
30 | |
31 | /** | |
32 | * State provider to track the memory of the threads using the UST libc wrapper | |
33 | * memory events. | |
34 | * | |
35 | * @author Matthew Khouzam | |
36 | * @author Geneviève Bastien | |
37 | */ | |
38 | public class MemoryUsageStateProvider extends AbstractTmfStateProvider { | |
39 | ||
40 | /* Version of this state provider */ | |
41 | private static final int VERSION = 1; | |
42 | ||
43 | /* Maps a pointer to a memory zone to the size of the memory */ | |
44 | private final Map<Long, Long> fMemory = new HashMap<>(); | |
45 | ||
46 | private static final Long MINUS_ONE = Long.valueOf(-1); | |
47 | private static final Long ZERO = Long.valueOf(0); | |
48 | private static final String EMPTY_STRING = ""; //$NON-NLS-1$ | |
49 | ||
50 | /** | |
51 | * Constructor | |
52 | * | |
53 | * @param trace | |
54 | * trace | |
55 | */ | |
56 | public MemoryUsageStateProvider(LttngUstTrace trace) { | |
57 | super(trace, CtfTmfEvent.class, "Ust:Memory"); //$NON-NLS-1$ | |
58 | } | |
59 | ||
60 | @Override | |
61 | protected void eventHandle(ITmfEvent event) { | |
62 | String name = event.getType().getName(); | |
63 | switch (name) { | |
64 | case UstMemoryStrings.MALLOC: { | |
65 | Long ptr = (Long) event.getContent().getField(UstMemoryStrings.FIELD_PTR).getValue(); | |
66 | if (ZERO.equals(ptr)) { | |
67 | return; | |
68 | } | |
69 | Long size = (Long) event.getContent().getField(UstMemoryStrings.FIELD_SIZE).getValue(); | |
70 | setMem(event, ptr, size); | |
71 | } | |
72 | break; | |
73 | case UstMemoryStrings.FREE: { | |
74 | Long ptr = (Long) event.getContent().getField(UstMemoryStrings.FIELD_PTR).getValue(); | |
75 | if (ZERO.equals(ptr)) { | |
76 | return; | |
77 | } | |
78 | setMem(event, ptr, ZERO); | |
79 | } | |
80 | break; | |
81 | case UstMemoryStrings.CALLOC: { | |
82 | Long ptr = (Long) event.getContent().getField(UstMemoryStrings.FIELD_PTR).getValue(); | |
83 | if (ZERO.equals(ptr)) { | |
84 | return; | |
85 | } | |
86 | Long nmemb = (Long) event.getContent().getField(UstMemoryStrings.FIELD_NMEMB).getValue(); | |
87 | Long size = (Long) event.getContent().getField(UstMemoryStrings.FIELD_SIZE).getValue(); | |
88 | setMem(event, ptr, size * nmemb); | |
89 | } | |
90 | break; | |
91 | case UstMemoryStrings.REALLOC: { | |
92 | Long ptr = (Long) event.getContent().getField(UstMemoryStrings.FIELD_PTR).getValue(); | |
93 | if (ZERO.equals(ptr)) { | |
94 | return; | |
95 | } | |
96 | Long newPtr = (Long) event.getContent().getField(UstMemoryStrings.FIELD_INPTR).getValue(); | |
97 | Long size = (Long) event.getContent().getField(UstMemoryStrings.FIELD_SIZE).getValue(); | |
98 | setMem(event, ptr, ZERO); | |
99 | setMem(event, newPtr, size); | |
100 | } | |
101 | break; | |
102 | case UstMemoryStrings.MEMALIGN: { | |
103 | Long ptr = (Long) event.getContent().getField(UstMemoryStrings.FIELD_PTR).getValue(); | |
104 | if (ZERO.equals(ptr)) { | |
105 | return; | |
106 | } | |
107 | Long size = (Long) event.getContent().getField(UstMemoryStrings.FIELD_SIZE).getValue(); | |
108 | setMem(event, ptr, size); | |
109 | } | |
110 | break; | |
111 | case UstMemoryStrings.POSIX_MEMALIGN: { | |
112 | Long ptr = (Long) event.getContent().getField(UstMemoryStrings.FIELD_OUTPTR).getValue(); | |
113 | if (ZERO.equals(ptr)) { | |
114 | return; | |
115 | } | |
116 | Long size = (Long) event.getContent().getField(UstMemoryStrings.FIELD_SIZE).getValue(); | |
117 | setMem(event, ptr, size); | |
118 | } | |
119 | break; | |
120 | default: | |
121 | break; | |
122 | } | |
123 | ||
124 | } | |
125 | ||
126 | @Override | |
127 | public ITmfStateProvider getNewInstance() { | |
128 | return new MemoryUsageStateProvider(getTrace()); | |
129 | } | |
130 | ||
131 | @Override | |
132 | public LttngUstTrace getTrace() { | |
133 | return (LttngUstTrace) super.getTrace(); | |
134 | } | |
135 | ||
136 | @Override | |
137 | public int getVersion() { | |
138 | return VERSION; | |
139 | } | |
140 | ||
141 | private static Long getVtid(ITmfEvent event) { | |
142 | ITmfEventField field = event.getContent().getField(UstMemoryStrings.CONTEXT_VTID); | |
143 | if (field == null) { | |
144 | return MINUS_ONE; | |
145 | } | |
146 | return (Long) field.getValue(); | |
147 | } | |
148 | ||
149 | private static String getProcname(ITmfEvent event) { | |
150 | ITmfEventField field = event.getContent().getField(UstMemoryStrings.CONTEXT_PROCNAME); | |
151 | if (field == null) { | |
152 | return EMPTY_STRING; | |
153 | } | |
154 | return (String) field.getValue(); | |
155 | } | |
156 | ||
157 | private void setMem(ITmfEvent event, Long ptr, Long size) { | |
158 | long ts = event.getTimestamp().getValue(); | |
159 | Long tid = getVtid(event); | |
160 | ||
161 | Long memoryDiff = size; | |
162 | /* Size is 0, it means it was deleted */ | |
163 | if (ZERO.equals(size)) { | |
164 | Long memSize = fMemory.remove(ptr); | |
165 | if (memSize == null) { | |
166 | return; | |
167 | } | |
168 | memoryDiff = -memSize; | |
169 | } else { | |
170 | fMemory.put(ptr, size); | |
171 | } | |
172 | try { | |
173 | int tidQuark = ss.getQuarkAbsoluteAndAdd(tid.toString()); | |
174 | int tidMemQuark = ss.getQuarkRelativeAndAdd(tidQuark, UstMemoryStrings.UST_MEMORY_MEMORY_ATTRIBUTE); | |
175 | ||
176 | ITmfStateValue prevMem = ss.queryOngoingState(tidMemQuark); | |
177 | /* First time we set this value */ | |
178 | if (prevMem.isNull()) { | |
179 | int procNameQuark = ss.getQuarkRelativeAndAdd(tidQuark, UstMemoryStrings.UST_MEMORY_PROCNAME_ATTRIBUTE); | |
180 | String procName = getProcname(event); | |
181 | /* | |
182 | * No tid/procname for the event for the event, added to a | |
183 | * 'others' thread | |
184 | */ | |
185 | if (tid.equals(MINUS_ONE)) { | |
186 | procName = UstMemoryStrings.OTHERS; | |
187 | } | |
188 | ss.modifyAttribute(ts, TmfStateValue.newValueString(procName), procNameQuark); | |
189 | prevMem = TmfStateValue.newValueLong(0); | |
190 | } | |
191 | ||
192 | long prevMemValue = prevMem.unboxLong(); | |
193 | prevMemValue += memoryDiff.longValue(); | |
194 | ss.modifyAttribute(ts, TmfStateValue.newValueLong(prevMemValue), tidMemQuark); | |
195 | } catch (AttributeNotFoundException | TimeRangeException | StateValueTypeException e) { | |
196 | throw new IllegalStateException(e); | |
197 | } | |
198 | } | |
199 | ||
200 | } |