| /* |
| * Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| package sun.jvm.hotspot.runtime; |
| |
| import java.util.*; |
| import sun.jvm.hotspot.debugger.*; |
| import sun.jvm.hotspot.oops.*; |
| import sun.jvm.hotspot.types.*; |
| import sun.jvm.hotspot.utilities.*; |
| |
| public class PerfDataEntry extends VMObject { |
| private static JIntField entryLengthField; |
| private static JIntField nameOffsetField; |
| private static JIntField vectorLengthField; |
| private static JByteField dataTypeField; |
| private static JByteField flagsField; |
| private static JByteField dataUnitsField; |
| private static JByteField dataVariabilityField; |
| private static JIntField dataOffsetField; |
| |
| static { |
| VM.registerVMInitializedObserver(new Observer() { |
| public void update(Observable o, Object data) { |
| initialize(VM.getVM().getTypeDataBase()); |
| } |
| }); |
| } |
| |
| private static synchronized void initialize(TypeDataBase db) { |
| Type type = db.lookupType("PerfDataEntry"); |
| entryLengthField = type.getJIntField("entry_length"); |
| nameOffsetField = type.getJIntField("name_offset"); |
| vectorLengthField = type.getJIntField("vector_length"); |
| dataTypeField = type.getJByteField("data_type"); |
| flagsField = type.getJByteField("flags"); |
| dataUnitsField = type.getJByteField("data_units"); |
| dataVariabilityField = type.getJByteField("data_variability"); |
| dataOffsetField = type.getJIntField("data_offset"); |
| } |
| |
| public PerfDataEntry(Address addr) { |
| super(addr); |
| } |
| |
| // Accessors |
| |
| public int entryLength() { |
| return (int) entryLengthField.getValue(addr); |
| } |
| |
| public int nameOffset() { |
| return (int) nameOffsetField.getValue(addr); |
| } |
| |
| public int vectorLength() { |
| return (int) vectorLengthField.getValue(addr); |
| } |
| |
| // returns one of the constants in BasicType class |
| public int dataType() { |
| char ch = (char) (byte) dataTypeField.getValue(addr); |
| return BasicType.charToType(ch); |
| } |
| |
| public byte flags() { |
| return (byte) flagsField.getValue(addr); |
| } |
| |
| public boolean supported() { |
| return (flags() & 0x1) != 0; |
| } |
| |
| // NOTE: Keep this in sync with PerfData::Units enum in VM code |
| public interface PerfDataUnits { |
| public static final int U_None = 1; |
| public static final int U_Bytes = 2; |
| public static final int U_Ticks = 3; |
| public static final int U_Events = 4; |
| public static final int U_String = 5; |
| public static final int U_Hertz = 6; |
| } |
| |
| // returns one of the constants in PerfDataUnits |
| public int dataUnits() { |
| return (int) dataUnitsField.getValue(addr); |
| } |
| |
| // NOTE: Keep this in sync with PerfData::Variability enum in VM code |
| public interface PerfDataVariability { |
| public static final int V_Constant = 1; |
| public static final int V_Monotonic = 2; |
| public static final int V_Variable = 3; |
| } |
| |
| // returns one of the constants in PerfDataVariability |
| public int dataVariability() { |
| return (int) dataVariabilityField.getValue(addr); |
| } |
| |
| public int dataOffset() { |
| return (int) dataOffsetField.getValue(addr); |
| } |
| |
| public String name() { |
| int off = nameOffset(); |
| return CStringUtilities.getString(addr.addOffsetTo(off)); |
| } |
| |
| public boolean booleanValue() { |
| if (Assert.ASSERTS_ENABLED) { |
| Assert.that(vectorLength() == 0 && |
| dataType() == BasicType.tBoolean, "not a boolean"); |
| } |
| return addr.getJBooleanAt(dataOffset()); |
| } |
| |
| public char charValue() { |
| if (Assert.ASSERTS_ENABLED) { |
| Assert.that(vectorLength() == 0 && |
| dataType() == BasicType.tChar, "not a char"); |
| } |
| return addr.getJCharAt(dataOffset()); |
| } |
| |
| public byte byteValue() { |
| if (Assert.ASSERTS_ENABLED) { |
| Assert.that(vectorLength() == 0 && |
| dataType() == BasicType.tByte, "not a byte"); |
| } |
| return addr.getJByteAt(dataOffset()); |
| |
| } |
| |
| public short shortValue() { |
| if (Assert.ASSERTS_ENABLED) { |
| Assert.that(vectorLength() == 0 && |
| dataType() == BasicType.tShort, "not a short"); |
| } |
| return addr.getJShortAt(dataOffset()); |
| } |
| |
| public int intValue() { |
| if (Assert.ASSERTS_ENABLED) { |
| Assert.that(vectorLength() == 0 && |
| dataType() == BasicType.tInt, "not an int"); |
| } |
| return addr.getJIntAt(dataOffset()); |
| } |
| |
| public long longValue() { |
| if (Assert.ASSERTS_ENABLED) { |
| Assert.that(vectorLength() == 0 && |
| dataType() == BasicType.tLong, "not a long"); |
| } |
| return addr.getJLongAt(dataOffset()); |
| } |
| |
| public float floatValue() { |
| if (Assert.ASSERTS_ENABLED) { |
| Assert.that(vectorLength() == 0 && |
| dataType() == BasicType.tFloat, "not a float"); |
| } |
| return addr.getJFloatAt(dataOffset()); |
| } |
| |
| public double doubleValue() { |
| if (Assert.ASSERTS_ENABLED) { |
| Assert.that(vectorLength() == 0 && |
| dataType() == BasicType.tDouble, "not a double"); |
| } |
| return addr.getJDoubleAt(dataOffset()); |
| } |
| |
| public boolean[] booleanArrayValue() { |
| int len = vectorLength(); |
| if (Assert.ASSERTS_ENABLED) { |
| Assert.that(len > 0 && |
| dataType() == BasicType.tBoolean, "not a boolean vector"); |
| } |
| boolean[] res = new boolean[len]; |
| final int off = dataOffset(); |
| final long size = getHeap().getBooleanSize(); |
| for (int i = 0; i < len; i++) { |
| res[i] = addr.getJBooleanAt(off + i * size); |
| } |
| return res; |
| } |
| |
| public char[] charArrayValue() { |
| int len = vectorLength(); |
| if (Assert.ASSERTS_ENABLED) { |
| Assert.that(len > 0 && |
| dataType() == BasicType.tChar, "not a char vector"); |
| } |
| char[] res = new char[len]; |
| final int off = dataOffset(); |
| final long size = getHeap().getCharSize(); |
| for (int i = 0; i < len; i++) { |
| res[i] = addr.getJCharAt(off + i * size); |
| } |
| return res; |
| } |
| |
| public byte[] byteArrayValue() { |
| int len = vectorLength(); |
| if (Assert.ASSERTS_ENABLED) { |
| Assert.that(len > 0 && |
| dataType() == BasicType.tByte, "not a byte vector"); |
| } |
| byte[] res = new byte[len]; |
| final int off = dataOffset(); |
| final long size = getHeap().getByteSize(); |
| for (int i = 0; i < len; i++) { |
| res[i] = addr.getJByteAt(off + i * size); |
| } |
| return res; |
| } |
| |
| public short[] shortArrayValue() { |
| int len = vectorLength(); |
| if (Assert.ASSERTS_ENABLED) { |
| Assert.that(len > 0 && |
| dataType() == BasicType.tShort, "not a short vector"); |
| } |
| short[] res = new short[len]; |
| final int off = dataOffset(); |
| final long size = getHeap().getShortSize(); |
| for (int i = 0; i < len; i++) { |
| res[i] = addr.getJShortAt(off + i * size); |
| } |
| return res; |
| } |
| |
| public int[] intArrayValue() { |
| int len = vectorLength(); |
| if (Assert.ASSERTS_ENABLED) { |
| Assert.that(len > 0 && |
| dataType() == BasicType.tInt, "not an int vector"); |
| } |
| int[] res = new int[len]; |
| final int off = dataOffset(); |
| final long size = getHeap().getIntSize(); |
| for (int i = 0; i < len; i++) { |
| res[i] = addr.getJIntAt(off + i * size); |
| } |
| return res; |
| } |
| |
| public long[] longArrayValue() { |
| int len = vectorLength(); |
| if (Assert.ASSERTS_ENABLED) { |
| Assert.that(len > 0 && |
| dataType() == BasicType.tLong, "not a long vector"); |
| } |
| long[] res = new long[len]; |
| final int off = dataOffset(); |
| final long size = getHeap().getLongSize(); |
| for (int i = 0; i < len; i++) { |
| res[i] = addr.getJLongAt(off + i * size); |
| } |
| return res; |
| } |
| |
| public float[] floatArrayValue() { |
| int len = vectorLength(); |
| if (Assert.ASSERTS_ENABLED) { |
| Assert.that(len > 0 && |
| dataType() == BasicType.tFloat, "not a float vector"); |
| } |
| float[] res = new float[len]; |
| final int off = dataOffset(); |
| final long size = getHeap().getFloatSize(); |
| for (int i = 0; i < len; i++) { |
| res[i] = addr.getJFloatAt(off + i * size); |
| } |
| return res; |
| } |
| |
| public double[] doubleArrayValue() { |
| int len = vectorLength(); |
| if (Assert.ASSERTS_ENABLED) { |
| Assert.that(len > 0 && |
| dataType() == BasicType.tDouble, "not a double vector"); |
| } |
| double[] res = new double[len]; |
| final int off = dataOffset(); |
| final long size = getHeap().getDoubleSize(); |
| for (int i = 0; i < len; i++) { |
| res[i] = addr.getJDoubleAt(off + i * size); |
| } |
| return res; |
| } |
| |
| // value as String |
| public String valueAsString() { |
| int dataType = dataType(); |
| int len = vectorLength(); |
| String str = null; |
| if (len == 0) { // scalar |
| switch (dataType) { |
| case BasicType.tBoolean: |
| str = Boolean.toString(booleanValue()); |
| break; |
| case BasicType.tChar: |
| str = "'" + Character.toString(charValue()) + "'"; |
| break; |
| case BasicType.tByte: |
| str = Byte.toString(byteValue()); |
| break; |
| case BasicType.tShort: |
| str = Short.toString(shortValue()); |
| break; |
| case BasicType.tInt: |
| str = Integer.toString(intValue()); |
| break; |
| case BasicType.tLong: |
| str = Long.toString(longValue()); |
| break; |
| case BasicType.tFloat: |
| str = Float.toString(floatValue()); |
| break; |
| case BasicType.tDouble: |
| str = Double.toString(doubleValue()); |
| break; |
| default: |
| str = "<unknown scalar value>"; |
| break; |
| } |
| } else { // vector |
| switch (dataType) { |
| case BasicType.tBoolean: { |
| boolean[] res = booleanArrayValue(); |
| StringBuffer buf = new StringBuffer(); |
| buf.append('['); |
| for (int i = 0; i < res.length; i++) { |
| buf.append(Boolean.toString(res[i])); |
| buf.append(", "); |
| } |
| buf.append(']'); |
| str = buf.toString(); |
| break; |
| } |
| |
| case BasicType.tChar: { |
| // char[] is returned as a String |
| str = new String(charArrayValue()); |
| break; |
| } |
| |
| case BasicType.tByte: { |
| // byte[] is returned as a String |
| try { |
| str = new String(byteArrayValue(), "US-ASCII"); |
| } catch (java.io.UnsupportedEncodingException e) { |
| str = "can't decode string : " + e.getMessage(); |
| } |
| break; |
| } |
| |
| case BasicType.tShort: { |
| short[] res = shortArrayValue(); |
| StringBuffer buf = new StringBuffer(); |
| buf.append('['); |
| for (int i = 0; i < res.length; i++) { |
| buf.append(Short.toString(res[i])); |
| buf.append(", "); |
| } |
| buf.append(']'); |
| str = buf.toString(); |
| break; |
| } |
| |
| case BasicType.tInt: { |
| int[] res = intArrayValue(); |
| StringBuffer buf = new StringBuffer(); |
| buf.append('['); |
| for (int i = 0; i < res.length; i++) { |
| buf.append(Integer.toString(res[i])); |
| buf.append(", "); |
| } |
| buf.append(']'); |
| str = buf.toString(); |
| break; |
| } |
| |
| case BasicType.tLong: { |
| long[] res = longArrayValue(); |
| StringBuffer buf = new StringBuffer(); |
| buf.append('['); |
| for (int i = 0; i < res.length; i++) { |
| buf.append(Long.toString(res[i])); |
| buf.append(", "); |
| } |
| buf.append(']'); |
| str = buf.toString(); |
| break; |
| } |
| |
| case BasicType.tFloat: { |
| float[] res = floatArrayValue(); |
| StringBuffer buf = new StringBuffer(); |
| buf.append('['); |
| for (int i = 0; i < res.length; i++) { |
| buf.append(Float.toString(res[i])); |
| buf.append(", "); |
| } |
| buf.append(']'); |
| str = buf.toString(); |
| break; |
| } |
| |
| case BasicType.tDouble: { |
| double[] res = doubleArrayValue(); |
| StringBuffer buf = new StringBuffer(); |
| buf.append('['); |
| for (int i = 0; i < res.length; i++) { |
| buf.append(Double.toString(res[i])); |
| buf.append(", "); |
| } |
| buf.append(']'); |
| str = buf.toString(); |
| break; |
| } |
| |
| default: |
| str = "<unknown vector value>"; |
| break; |
| } |
| } |
| |
| // add units |
| switch (dataUnits()) { |
| case PerfDataUnits.U_None: |
| break; |
| case PerfDataUnits.U_Bytes: |
| str += " byte(s)"; |
| break; |
| case PerfDataUnits.U_Ticks: |
| str += " tick(s)"; |
| break; |
| case PerfDataUnits.U_Events: |
| str += " event(s)"; |
| break; |
| case PerfDataUnits.U_String: |
| break; |
| case PerfDataUnits.U_Hertz: |
| str += " Hz"; |
| break; |
| } |
| |
| return str; |
| } |
| |
| // -- Internals only below this point |
| private ObjectHeap getHeap() { |
| return VM.getVM().getObjectHeap(); |
| } |
| } |
