Mercurial > hg > graal-compiler
comparison agent/src/share/classes/sun/jvm/hotspot/runtime/PerfDataEntry.java @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
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children | c18cbe5936b8 |
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1 /* | |
2 * Copyright 2004 Sun Microsystems, Inc. All Rights Reserved. | |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 package sun.jvm.hotspot.runtime; | |
26 | |
27 import java.util.*; | |
28 import sun.jvm.hotspot.debugger.*; | |
29 import sun.jvm.hotspot.oops.*; | |
30 import sun.jvm.hotspot.types.*; | |
31 import sun.jvm.hotspot.utilities.*; | |
32 | |
33 public class PerfDataEntry extends VMObject { | |
34 private static JIntField entryLengthField; | |
35 private static JIntField nameOffsetField; | |
36 private static JIntField vectorLengthField; | |
37 private static JByteField dataTypeField; | |
38 private static JByteField flagsField; | |
39 private static JByteField dataUnitsField; | |
40 private static JByteField dataVariabilityField; | |
41 private static JIntField dataOffsetField; | |
42 | |
43 static { | |
44 VM.registerVMInitializedObserver(new Observer() { | |
45 public void update(Observable o, Object data) { | |
46 initialize(VM.getVM().getTypeDataBase()); | |
47 } | |
48 }); | |
49 } | |
50 | |
51 private static synchronized void initialize(TypeDataBase db) { | |
52 Type type = db.lookupType("PerfDataEntry"); | |
53 entryLengthField = type.getJIntField("entry_length"); | |
54 nameOffsetField = type.getJIntField("name_offset"); | |
55 vectorLengthField = type.getJIntField("vector_length"); | |
56 dataTypeField = type.getJByteField("data_type"); | |
57 flagsField = type.getJByteField("flags"); | |
58 dataUnitsField = type.getJByteField("data_units"); | |
59 dataVariabilityField = type.getJByteField("data_variability"); | |
60 dataOffsetField = type.getJIntField("data_offset"); | |
61 } | |
62 | |
63 public PerfDataEntry(Address addr) { | |
64 super(addr); | |
65 } | |
66 | |
67 // Accessors | |
68 | |
69 public int entryLength() { | |
70 return (int) entryLengthField.getValue(addr); | |
71 } | |
72 | |
73 public int nameOffset() { | |
74 return (int) nameOffsetField.getValue(addr); | |
75 } | |
76 | |
77 public int vectorLength() { | |
78 return (int) vectorLengthField.getValue(addr); | |
79 } | |
80 | |
81 // returns one of the constants in BasicType class | |
82 public int dataType() { | |
83 char ch = (char) (byte) dataTypeField.getValue(addr); | |
84 return BasicType.charToType(ch); | |
85 } | |
86 | |
87 public byte flags() { | |
88 return (byte) flagsField.getValue(addr); | |
89 } | |
90 | |
91 public boolean supported() { | |
92 return (flags() & 0x1) != 0; | |
93 } | |
94 | |
95 // NOTE: Keep this in sync with PerfData::Units enum in VM code | |
96 public interface PerfDataUnits { | |
97 public static final int U_None = 1; | |
98 public static final int U_Bytes = 2; | |
99 public static final int U_Ticks = 3; | |
100 public static final int U_Events = 4; | |
101 public static final int U_String = 5; | |
102 public static final int U_Hertz = 6; | |
103 } | |
104 | |
105 // returns one of the constants in PerfDataUnits | |
106 public int dataUnits() { | |
107 return (int) dataUnitsField.getValue(addr); | |
108 } | |
109 | |
110 // NOTE: Keep this in sync with PerfData::Variability enum in VM code | |
111 public interface PerfDataVariability { | |
112 public static final int V_Constant = 1; | |
113 public static final int V_Monotonic = 2; | |
114 public static final int V_Variable = 3; | |
115 } | |
116 | |
117 // returns one of the constants in PerfDataVariability | |
118 public int dataVariability() { | |
119 return (int) dataVariabilityField.getValue(addr); | |
120 } | |
121 | |
122 public int dataOffset() { | |
123 return (int) dataOffsetField.getValue(addr); | |
124 } | |
125 | |
126 public String name() { | |
127 int off = nameOffset(); | |
128 return CStringUtilities.getString(addr.addOffsetTo(off)); | |
129 } | |
130 | |
131 public boolean booleanValue() { | |
132 if (Assert.ASSERTS_ENABLED) { | |
133 Assert.that(vectorLength() == 0 && | |
134 dataType() == BasicType.tBoolean, "not a boolean"); | |
135 } | |
136 return addr.getJBooleanAt(dataOffset()); | |
137 } | |
138 | |
139 public char charValue() { | |
140 if (Assert.ASSERTS_ENABLED) { | |
141 Assert.that(vectorLength() == 0 && | |
142 dataType() == BasicType.tChar, "not a char"); | |
143 } | |
144 return addr.getJCharAt(dataOffset()); | |
145 } | |
146 | |
147 public byte byteValue() { | |
148 if (Assert.ASSERTS_ENABLED) { | |
149 Assert.that(vectorLength() == 0 && | |
150 dataType() == BasicType.tByte, "not a byte"); | |
151 } | |
152 return addr.getJByteAt(dataOffset()); | |
153 | |
154 } | |
155 | |
156 public short shortValue() { | |
157 if (Assert.ASSERTS_ENABLED) { | |
158 Assert.that(vectorLength() == 0 && | |
159 dataType() == BasicType.tShort, "not a short"); | |
160 } | |
161 return addr.getJShortAt(dataOffset()); | |
162 } | |
163 | |
164 public int intValue() { | |
165 if (Assert.ASSERTS_ENABLED) { | |
166 Assert.that(vectorLength() == 0 && | |
167 dataType() == BasicType.tInt, "not an int"); | |
168 } | |
169 return addr.getJIntAt(dataOffset()); | |
170 } | |
171 | |
172 public long longValue() { | |
173 if (Assert.ASSERTS_ENABLED) { | |
174 Assert.that(vectorLength() == 0 && | |
175 dataType() == BasicType.tLong, "not a long"); | |
176 } | |
177 return addr.getJLongAt(dataOffset()); | |
178 } | |
179 | |
180 public float floatValue() { | |
181 if (Assert.ASSERTS_ENABLED) { | |
182 Assert.that(vectorLength() == 0 && | |
183 dataType() == BasicType.tFloat, "not a float"); | |
184 } | |
185 return addr.getJFloatAt(dataOffset()); | |
186 } | |
187 | |
188 public double doubleValue() { | |
189 if (Assert.ASSERTS_ENABLED) { | |
190 Assert.that(vectorLength() == 0 && | |
191 dataType() == BasicType.tDouble, "not a double"); | |
192 } | |
193 return addr.getJDoubleAt(dataOffset()); | |
194 } | |
195 | |
196 public boolean[] booleanArrayValue() { | |
197 int len = vectorLength(); | |
198 if (Assert.ASSERTS_ENABLED) { | |
199 Assert.that(len > 0 && | |
200 dataType() == BasicType.tBoolean, "not a boolean vector"); | |
201 } | |
202 boolean[] res = new boolean[len]; | |
203 final int off = dataOffset(); | |
204 final long size = getHeap().getBooleanSize(); | |
205 for (int i = 0; i < len; i++) { | |
206 res[i] = addr.getJBooleanAt(off + i * size); | |
207 } | |
208 return res; | |
209 } | |
210 | |
211 public char[] charArrayValue() { | |
212 int len = vectorLength(); | |
213 if (Assert.ASSERTS_ENABLED) { | |
214 Assert.that(len > 0 && | |
215 dataType() == BasicType.tChar, "not a char vector"); | |
216 } | |
217 char[] res = new char[len]; | |
218 final int off = dataOffset(); | |
219 final long size = getHeap().getCharSize(); | |
220 for (int i = 0; i < len; i++) { | |
221 res[i] = addr.getJCharAt(off + i * size); | |
222 } | |
223 return res; | |
224 } | |
225 | |
226 public byte[] byteArrayValue() { | |
227 int len = vectorLength(); | |
228 if (Assert.ASSERTS_ENABLED) { | |
229 Assert.that(len > 0 && | |
230 dataType() == BasicType.tByte, "not a byte vector"); | |
231 } | |
232 byte[] res = new byte[len]; | |
233 final int off = dataOffset(); | |
234 final long size = getHeap().getByteSize(); | |
235 for (int i = 0; i < len; i++) { | |
236 res[i] = addr.getJByteAt(off + i * size); | |
237 } | |
238 return res; | |
239 } | |
240 | |
241 public short[] shortArrayValue() { | |
242 int len = vectorLength(); | |
243 if (Assert.ASSERTS_ENABLED) { | |
244 Assert.that(len > 0 && | |
245 dataType() == BasicType.tShort, "not a short vector"); | |
246 } | |
247 short[] res = new short[len]; | |
248 final int off = dataOffset(); | |
249 final long size = getHeap().getShortSize(); | |
250 for (int i = 0; i < len; i++) { | |
251 res[i] = addr.getJShortAt(off + i * size); | |
252 } | |
253 return res; | |
254 } | |
255 | |
256 public int[] intArrayValue() { | |
257 int len = vectorLength(); | |
258 if (Assert.ASSERTS_ENABLED) { | |
259 Assert.that(len > 0 && | |
260 dataType() == BasicType.tInt, "not an int vector"); | |
261 } | |
262 int[] res = new int[len]; | |
263 final int off = dataOffset(); | |
264 final long size = getHeap().getIntSize(); | |
265 for (int i = 0; i < len; i++) { | |
266 res[i] = addr.getJIntAt(off + i * size); | |
267 } | |
268 return res; | |
269 } | |
270 | |
271 public long[] longArrayValue() { | |
272 int len = vectorLength(); | |
273 if (Assert.ASSERTS_ENABLED) { | |
274 Assert.that(len > 0 && | |
275 dataType() == BasicType.tLong, "not a long vector"); | |
276 } | |
277 long[] res = new long[len]; | |
278 final int off = dataOffset(); | |
279 final long size = getHeap().getLongSize(); | |
280 for (int i = 0; i < len; i++) { | |
281 res[i] = addr.getJLongAt(off + i * size); | |
282 } | |
283 return res; | |
284 } | |
285 | |
286 public float[] floatArrayValue() { | |
287 int len = vectorLength(); | |
288 if (Assert.ASSERTS_ENABLED) { | |
289 Assert.that(len > 0 && | |
290 dataType() == BasicType.tFloat, "not a float vector"); | |
291 } | |
292 float[] res = new float[len]; | |
293 final int off = dataOffset(); | |
294 final long size = getHeap().getFloatSize(); | |
295 for (int i = 0; i < len; i++) { | |
296 res[i] = addr.getJFloatAt(off + i * size); | |
297 } | |
298 return res; | |
299 } | |
300 | |
301 public double[] doubleArrayValue() { | |
302 int len = vectorLength(); | |
303 if (Assert.ASSERTS_ENABLED) { | |
304 Assert.that(len > 0 && | |
305 dataType() == BasicType.tDouble, "not a double vector"); | |
306 } | |
307 double[] res = new double[len]; | |
308 final int off = dataOffset(); | |
309 final long size = getHeap().getDoubleSize(); | |
310 for (int i = 0; i < len; i++) { | |
311 res[i] = addr.getJDoubleAt(off + i * size); | |
312 } | |
313 return res; | |
314 } | |
315 | |
316 // value as String | |
317 public String valueAsString() { | |
318 int dataType = dataType(); | |
319 int len = vectorLength(); | |
320 String str = null; | |
321 if (len == 0) { // scalar | |
322 switch (dataType) { | |
323 case BasicType.tBoolean: | |
324 str = Boolean.toString(booleanValue()); | |
325 break; | |
326 case BasicType.tChar: | |
327 str = "'" + Character.toString(charValue()) + "'"; | |
328 break; | |
329 case BasicType.tByte: | |
330 str = Byte.toString(byteValue()); | |
331 break; | |
332 case BasicType.tShort: | |
333 str = Short.toString(shortValue()); | |
334 break; | |
335 case BasicType.tInt: | |
336 str = Integer.toString(intValue()); | |
337 break; | |
338 case BasicType.tLong: | |
339 str = Long.toString(longValue()); | |
340 break; | |
341 case BasicType.tFloat: | |
342 str = Float.toString(floatValue()); | |
343 break; | |
344 case BasicType.tDouble: | |
345 str = Double.toString(doubleValue()); | |
346 break; | |
347 default: | |
348 str = "<unknown scalar value>"; | |
349 break; | |
350 } | |
351 } else { // vector | |
352 switch (dataType) { | |
353 case BasicType.tBoolean: { | |
354 boolean[] res = booleanArrayValue(); | |
355 StringBuffer buf = new StringBuffer(); | |
356 buf.append('['); | |
357 for (int i = 0; i < res.length; i++) { | |
358 buf.append(Boolean.toString(res[i])); | |
359 buf.append(", "); | |
360 } | |
361 buf.append(']'); | |
362 str = buf.toString(); | |
363 break; | |
364 } | |
365 | |
366 case BasicType.tChar: { | |
367 // char[] is returned as a String | |
368 str = new String(charArrayValue()); | |
369 break; | |
370 } | |
371 | |
372 case BasicType.tByte: { | |
373 // byte[] is returned as a String | |
374 try { | |
375 str = new String(byteArrayValue(), "US-ASCII"); | |
376 } catch (java.io.UnsupportedEncodingException e) { | |
377 str = "can't decode string : " + e.getMessage(); | |
378 } | |
379 break; | |
380 } | |
381 | |
382 case BasicType.tShort: { | |
383 short[] res = shortArrayValue(); | |
384 StringBuffer buf = new StringBuffer(); | |
385 buf.append('['); | |
386 for (int i = 0; i < res.length; i++) { | |
387 buf.append(Short.toString(res[i])); | |
388 buf.append(", "); | |
389 } | |
390 buf.append(']'); | |
391 str = buf.toString(); | |
392 break; | |
393 } | |
394 | |
395 case BasicType.tInt: { | |
396 int[] res = intArrayValue(); | |
397 StringBuffer buf = new StringBuffer(); | |
398 buf.append('['); | |
399 for (int i = 0; i < res.length; i++) { | |
400 buf.append(Integer.toString(res[i])); | |
401 buf.append(", "); | |
402 } | |
403 buf.append(']'); | |
404 str = buf.toString(); | |
405 break; | |
406 } | |
407 | |
408 case BasicType.tLong: { | |
409 long[] res = longArrayValue(); | |
410 StringBuffer buf = new StringBuffer(); | |
411 buf.append('['); | |
412 for (int i = 0; i < res.length; i++) { | |
413 buf.append(Long.toString(res[i])); | |
414 buf.append(", "); | |
415 } | |
416 buf.append(']'); | |
417 str = buf.toString(); | |
418 break; | |
419 } | |
420 | |
421 case BasicType.tFloat: { | |
422 float[] res = floatArrayValue(); | |
423 StringBuffer buf = new StringBuffer(); | |
424 buf.append('['); | |
425 for (int i = 0; i < res.length; i++) { | |
426 buf.append(Float.toString(res[i])); | |
427 buf.append(", "); | |
428 } | |
429 buf.append(']'); | |
430 str = buf.toString(); | |
431 break; | |
432 } | |
433 | |
434 case BasicType.tDouble: { | |
435 double[] res = doubleArrayValue(); | |
436 StringBuffer buf = new StringBuffer(); | |
437 buf.append('['); | |
438 for (int i = 0; i < res.length; i++) { | |
439 buf.append(Double.toString(res[i])); | |
440 buf.append(", "); | |
441 } | |
442 buf.append(']'); | |
443 str = buf.toString(); | |
444 break; | |
445 } | |
446 | |
447 default: | |
448 str = "<unknown vector value>"; | |
449 break; | |
450 } | |
451 } | |
452 | |
453 // add units | |
454 switch (dataUnits()) { | |
455 case PerfDataUnits.U_None: | |
456 break; | |
457 case PerfDataUnits.U_Bytes: | |
458 str += " byte(s)"; | |
459 break; | |
460 case PerfDataUnits.U_Ticks: | |
461 str += " tick(s)"; | |
462 break; | |
463 case PerfDataUnits.U_Events: | |
464 str += " event(s)"; | |
465 break; | |
466 case PerfDataUnits.U_String: | |
467 break; | |
468 case PerfDataUnits.U_Hertz: | |
469 str += " Hz"; | |
470 break; | |
471 } | |
472 | |
473 return str; | |
474 } | |
475 | |
476 // -- Internals only below this point | |
477 private ObjectHeap getHeap() { | |
478 return VM.getVM().getObjectHeap(); | |
479 } | |
480 } |