Mercurial > hg > graal-compiler
diff 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 |
parents | |
children | c18cbe5936b8 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/agent/src/share/classes/sun/jvm/hotspot/runtime/PerfDataEntry.java Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,480 @@ +/* + * Copyright 2004 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.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(); + } +}