From d6a90f23a558295c3c94a20dc65eb59620ec317b Mon Sep 17 00:00:00 2001 From: redkale Date: Mon, 7 Oct 2024 00:06:52 +0800 Subject: [PATCH] Utility --- .../org/redkale/util/AnonymousUnsafe.java | 443 ++++++++++++++++++ src/main/java/org/redkale/util/Unsafe.java | 191 ++++++++ src/main/java/org/redkale/util/Utility.java | 62 ++- 3 files changed, 680 insertions(+), 16 deletions(-) create mode 100644 src/main/java/org/redkale/util/AnonymousUnsafe.java create mode 100644 src/main/java/org/redkale/util/Unsafe.java diff --git a/src/main/java/org/redkale/util/AnonymousUnsafe.java b/src/main/java/org/redkale/util/AnonymousUnsafe.java new file mode 100644 index 000000000..0d7c8549a --- /dev/null +++ b/src/main/java/org/redkale/util/AnonymousUnsafe.java @@ -0,0 +1,443 @@ +// package org.redkale.util; +// +// import java.lang.reflect.Field; +// import java.nio.ByteBuffer; +// +// public class AnonymousUnsafe implements Unsafe { +// +// private final sun.misc.Unsafe unsafe; +// +// public AnonymousUnsafe(Object obj) { +// this.unsafe = (sun.misc.Unsafe) obj; +// } +// +// @Override +// public int getInt(Object o, long offset) { +// return unsafe.getInt(o, offset); +// } +// +// @Override +// public void putInt(Object o, long offset, int x) { +// unsafe.putInt(o, offset, x); +// } +// +// @Override +// public Object getObject(Object o, long offset) { +// return unsafe.getObject(o, offset); +// } +// +// @Override +// public void putObject(Object o, long offset, Object x) { +// unsafe.putObject(o, offset, x); +// } +// +// @Override +// public boolean getBoolean(Object o, long offset) { +// return unsafe.getBoolean(o, offset); +// } +// +// @Override +// public void putBoolean(Object o, long offset, boolean x) { +// unsafe.putBoolean(o, offset, x); +// } +// +// @Override +// public byte getByte(Object o, long offset) { +// return unsafe.getByte(o, offset); +// } +// +// @Override +// public void putByte(Object o, long offset, byte x) { +// unsafe.putByte(o, offset, x); +// } +// +// @Override +// public short getShort(Object o, long offset) { +// return unsafe.getShort(o, offset); +// } +// +// @Override +// public void putShort(Object o, long offset, short x) { +// unsafe.putShort(o, offset, x); +// } +// +// @Override +// public char getChar(Object o, long offset) { +// return unsafe.getChar(o, offset); +// } +// +// @Override +// public void putChar(Object o, long offset, char x) { +// unsafe.putChar(o, offset, x); +// } +// +// @Override +// public long getLong(Object o, long offset) { +// return unsafe.getLong(o, offset); +// } +// +// @Override +// public void putLong(Object o, long offset, long x) { +// unsafe.putLong(o, offset, x); +// } +// +// @Override +// public float getFloat(Object o, long offset) { +// return unsafe.getFloat(o, offset); +// } +// +// @Override +// public void putFloat(Object o, long offset, float x) { +// unsafe.putFloat(o, offset, x); +// } +// +// @Override +// public double getDouble(Object o, long offset) { +// return unsafe.getDouble(o, offset); +// } +// +// @Override +// public void putDouble(Object o, long offset, double x) { +// unsafe.putDouble(o, offset, x); +// } +// +// @Override +// public byte getByte(long address) { +// return unsafe.getByte(address); +// } +// +// @Override +// public void putByte(long address, byte x) { +// unsafe.putByte(address, x); +// } +// +// @Override +// public short getShort(long address) { +// return unsafe.getShort(address); +// } +// +// @Override +// public void putShort(long address, short x) { +// unsafe.putShort(address, x); +// } +// +// @Override +// public char getChar(long address) { +// return unsafe.getChar(address); +// } +// +// @Override +// public void putChar(long address, char x) { +// unsafe.putChar(address, x); +// } +// +// @Override +// public int getInt(long address) { +// return unsafe.getInt(address); +// } +// +// @Override +// public void putInt(long address, int x) { +// unsafe.putInt(address, x); +// } +// +// @Override +// public long getLong(long address) { +// return unsafe.getLong(address); +// } +// +// @Override +// public void putLong(long address, long x) { +// unsafe.putLong(address, x); +// } +// +// @Override +// public float getFloat(long address) { +// return unsafe.getFloat(address); +// } +// +// @Override +// public void putFloat(long address, float x) { +// unsafe.putFloat(address, x); +// } +// +// @Override +// public double getDouble(long address) { +// return unsafe.getDouble(address); +// } +// +// @Override +// public void putDouble(long address, double x) { +// unsafe.putDouble(address, x); +// } +// +// @Override +// public long getAddress(long address) { +// return unsafe.getAddress(address); +// } +// +// @Override +// public void putAddress(long address, long x) { +// unsafe.putAddress(address, x); +// } +// +// @Override +// public long allocateMemory(long bytes) { +// return unsafe.allocateMemory(bytes); +// } +// +// @Override +// public long reallocateMemory(long address, long bytes) { +// return unsafe.reallocateMemory(address, bytes); +// } +// +// @Override +// public void setMemory(Object o, long offset, long bytes, byte value) { +// unsafe.setMemory(o, offset, bytes, value); +// } +// +// @Override +// public void setMemory(long address, long bytes, byte value) { +// unsafe.setMemory(address, bytes, value); +// } +// +// @Override +// public void copyMemory(Object srcBase, long srcOffset, Object destBase, long destOffset, long bytes) { +// unsafe.copyMemory(srcBase, srcOffset, destBase, destOffset, bytes); +// } +// +// @Override +// public void copyMemory(long srcAddress, long destAddress, long bytes) { +// unsafe.copyMemory(srcAddress, destAddress, bytes); +// } +// +// @Override +// public void freeMemory(long address) { +// unsafe.freeMemory(address); +// } +// +// @Override +// public long objectFieldOffset(Field f) { +// return unsafe.objectFieldOffset(f); +// } +// +// @Override +// public long staticFieldOffset(Field f) { +// return unsafe.staticFieldOffset(f); +// } +// +// @Override +// public Object staticFieldBase(Field f) { +// return unsafe.staticFieldBase(f); +// } +// +// @Override +// public int arrayBaseOffset(Class arrayClass) { +// return unsafe.arrayBaseOffset(arrayClass); +// } +// +// @Override +// public int arrayIndexScale(Class arrayClass) { +// return unsafe.arrayIndexScale(arrayClass); +// } +// +// @Override +// public int addressSize() { +// return unsafe.addressSize(); +// } +// +// @Override +// public int pageSize() { +// return unsafe.pageSize(); +// } +// +// @Override +// public Object allocateInstance(Class cls) throws InstantiationException { +// return unsafe.allocateInstance(cls); +// } +// +// @Override +// public void throwException(Throwable ee) { +// unsafe.throwException(ee); +// } +// +// @Override +// public boolean compareAndSwapObject(Object o, long offset, Object expected, Object x) { +// return unsafe.compareAndSwapObject(o, offset, expected, x); +// } +// +// @Override +// public boolean compareAndSwapInt(Object o, long offset, int expected, int x) { +// return unsafe.compareAndSwapInt(o, offset, expected, x); +// } +// +// @Override +// public boolean compareAndSwapLong(Object o, long offset, long expected, long x) { +// return unsafe.compareAndSwapLong(o, offset, expected, x); +// } +// +// @Override +// public Object getObjectVolatile(Object o, long offset) { +// return unsafe.getObjectVolatile(o, offset); +// } +// +// @Override +// public void putObjectVolatile(Object o, long offset, Object x) { +// unsafe.putObjectVolatile(o, offset, x); +// } +// +// @Override +// public int getIntVolatile(Object o, long offset) { +// return unsafe.getIntVolatile(o, offset); +// } +// +// @Override +// public void putIntVolatile(Object o, long offset, int x) { +// unsafe.putIntVolatile(o, offset, x); +// } +// +// @Override +// public boolean getBooleanVolatile(Object o, long offset) { +// return unsafe.getBooleanVolatile(o, offset); +// } +// +// @Override +// public void putBooleanVolatile(Object o, long offset, boolean x) { +// unsafe.putBooleanVolatile(o, offset, x); +// } +// +// @Override +// public byte getByteVolatile(Object o, long offset) { +// return unsafe.getByteVolatile(o, offset); +// } +// +// @Override +// public void putByteVolatile(Object o, long offset, byte x) { +// unsafe.putByteVolatile(o, offset, x); +// } +// +// @Override +// public short getShortVolatile(Object o, long offset) { +// return unsafe.getShortVolatile(o, offset); +// } +// +// @Override +// public void putShortVolatile(Object o, long offset, short x) { +// unsafe.putShortVolatile(o, offset, x); +// } +// +// @Override +// public char getCharVolatile(Object o, long offset) { +// return unsafe.getCharVolatile(o, offset); +// } +// +// @Override +// public void putCharVolatile(Object o, long offset, char x) { +// unsafe.putCharVolatile(o, offset, x); +// } +// +// @Override +// public long getLongVolatile(Object o, long offset) { +// return unsafe.getLongVolatile(o, offset); +// } +// +// @Override +// public void putLongVolatile(Object o, long offset, long x) { +// unsafe.putLongVolatile(o, offset, x); +// } +// +// @Override +// public float getFloatVolatile(Object o, long offset) { +// return unsafe.getFloatVolatile(o, offset); +// } +// +// @Override +// public void putFloatVolatile(Object o, long offset, float x) { +// unsafe.putFloatVolatile(o, offset, x); +// } +// +// @Override +// public double getDoubleVolatile(Object o, long offset) { +// return unsafe.getDoubleVolatile(o, offset); +// } +// +// @Override +// public void putDoubleVolatile(Object o, long offset, double x) { +// unsafe.putDoubleVolatile(o, offset, x); +// } +// +// @Override +// public void putOrderedObject(Object o, long offset, Object x) { +// unsafe.putOrderedObject(o, offset, x); +// } +// +// @Override +// public void putOrderedInt(Object o, long offset, int x) { +// unsafe.putOrderedInt(o, offset, x); +// } +// +// @Override +// public void putOrderedLong(Object o, long offset, long x) { +// unsafe.putOrderedLong(o, offset, x); +// } +// +// @Override +// public void unpark(Object thread) { +// unsafe.unpark(thread); +// } +// +// @Override +// public void park(boolean isAbsolute, long time) { +// unsafe.park(isAbsolute, time); +// } +// +// @Override +// public int getLoadAverage(double[] loadavg, int nelems) { +// return unsafe.getLoadAverage(loadavg, nelems); +// } +// +// @Override +// public int getAndAddInt(Object o, long offset, int delta) { +// return unsafe.getAndAddInt(o, offset, delta); +// } +// +// @Override +// public long getAndAddLong(Object o, long offset, long delta) { +// return unsafe.getAndAddLong(o, offset, delta); +// } +// +// @Override +// public int getAndSetInt(Object o, long offset, int newValue) { +// return unsafe.getAndSetInt(o, offset, newValue); +// } +// +// @Override +// public long getAndSetLong(Object o, long offset, long newValue) { +// return unsafe.getAndSetLong(o, offset, newValue); +// } +// +// @Override +// public Object getAndSetObject(Object o, long offset, Object newValue) { +// return unsafe.getAndSetObject(o, offset, newValue); +// } +// +// @Override +// public void loadFence() { +// unsafe.loadFence(); +// } +// +// @Override +// public void storeFence() { +// unsafe.storeFence(); +// } +// +// @Override +// public void fullFence() { +// unsafe.fullFence(); +// } +// +// @Override +// public void invokeCleaner(ByteBuffer directBuffer) { +// unsafe.invokeCleaner(directBuffer); +// } +// } diff --git a/src/main/java/org/redkale/util/Unsafe.java b/src/main/java/org/redkale/util/Unsafe.java new file mode 100644 index 000000000..c7e016e4c --- /dev/null +++ b/src/main/java/org/redkale/util/Unsafe.java @@ -0,0 +1,191 @@ +/* + * To change this license header, choose License Headers in Project Properties. + * To change this template file, choose Tools | Templates + * and open the template in the editor. + */ +package org.redkale.util; + +import java.lang.reflect.Field; + +/** + * sun.misc.Unsafe 封装类 + * + *

详情见: https://redkale.org + * + * @author zhangjx + * @since 2.5.0 + */ +public interface Unsafe { + + public int getInt(Object o, long offset); + + public void putInt(Object o, long offset, int x); + + public Object getObject(Object o, long offset); + + public void putObject(Object o, long offset, Object x); + + public boolean getBoolean(Object o, long offset); + + public void putBoolean(Object o, long offset, boolean x); + + public byte getByte(Object o, long offset); + + public void putByte(Object o, long offset, byte x); + + public short getShort(Object o, long offset); + + public void putShort(Object o, long offset, short x); + + public char getChar(Object o, long offset); + + public void putChar(Object o, long offset, char x); + + public long getLong(Object o, long offset); + + public void putLong(Object o, long offset, long x); + + public float getFloat(Object o, long offset); + + public void putFloat(Object o, long offset, float x); + + public double getDouble(Object o, long offset); + + public void putDouble(Object o, long offset, double x); + + public byte getByte(long address); + + public void putByte(long address, byte x); + + public short getShort(long address); + + public void putShort(long address, short x); + + public char getChar(long address); + + public void putChar(long address, char x); + + public int getInt(long address); + + public void putInt(long address, int x); + + public long getLong(long address); + + public void putLong(long address, long x); + + public float getFloat(long address); + + public void putFloat(long address, float x); + + public double getDouble(long address); + + public void putDouble(long address, double x); + + public long getAddress(long address); + + public void putAddress(long address, long x); + + public long allocateMemory(long bytes); + + public long reallocateMemory(long address, long bytes); + + public void setMemory(Object o, long offset, long bytes, byte value); + + public void setMemory(long address, long bytes, byte value); + + public void copyMemory(Object srcBase, long srcOffset, Object destBase, long destOffset, long bytes); + + public void copyMemory(long srcAddress, long destAddress, long bytes); + + public void freeMemory(long address); + + public long objectFieldOffset(Field f); + + public long staticFieldOffset(Field f); + + public Object staticFieldBase(Field f); + + public int arrayBaseOffset(Class arrayClass); + + public int arrayIndexScale(Class arrayClass); + + public int addressSize(); + + public int pageSize(); + + public Object allocateInstance(Class cls) throws InstantiationException; + + public void throwException(Throwable ee); + + public boolean compareAndSwapObject(Object o, long offset, Object expected, Object x); + + public boolean compareAndSwapInt(Object o, long offset, int expected, int x); + + public boolean compareAndSwapLong(Object o, long offset, long expected, long x); + + public Object getObjectVolatile(Object o, long offset); + + public void putObjectVolatile(Object o, long offset, Object x); + + public int getIntVolatile(Object o, long offset); + + public void putIntVolatile(Object o, long offset, int x); + + public boolean getBooleanVolatile(Object o, long offset); + + public void putBooleanVolatile(Object o, long offset, boolean x); + + public byte getByteVolatile(Object o, long offset); + + public void putByteVolatile(Object o, long offset, byte x); + + public short getShortVolatile(Object o, long offset); + + public void putShortVolatile(Object o, long offset, short x); + + public char getCharVolatile(Object o, long offset); + + public void putCharVolatile(Object o, long offset, char x); + + public long getLongVolatile(Object o, long offset); + + public void putLongVolatile(Object o, long offset, long x); + + public float getFloatVolatile(Object o, long offset); + + public void putFloatVolatile(Object o, long offset, float x); + + public double getDoubleVolatile(Object o, long offset); + + public void putDoubleVolatile(Object o, long offset, double x); + + public void putOrderedObject(Object o, long offset, Object x); + + public void putOrderedInt(Object o, long offset, int x); + + public void putOrderedLong(Object o, long offset, long x); + + public void unpark(Object thread); + + public void park(boolean isAbsolute, long time); + + public int getLoadAverage(double[] loadavg, int nelems); + + public int getAndAddInt(Object o, long offset, int delta); + + public long getAndAddLong(Object o, long offset, long delta); + + public int getAndSetInt(Object o, long offset, int newValue); + + public long getAndSetLong(Object o, long offset, long newValue); + + public Object getAndSetObject(Object o, long offset, Object newValue); + + public void loadFence(); + + public void storeFence(); + + public void fullFence(); + + public void invokeCleaner(java.nio.ByteBuffer directBuffer); +} diff --git a/src/main/java/org/redkale/util/Utility.java b/src/main/java/org/redkale/util/Utility.java index e2d401351..8b26d2060 100644 --- a/src/main/java/org/redkale/util/Utility.java +++ b/src/main/java/org/redkale/util/Utility.java @@ -65,36 +65,58 @@ public final class Utility { JAVA_RECORD_CLASS = clz; } + // org.redkale.util.AnonymousUnsafe + private static final String funcAnonymousUnsafeBinary = + 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+ // org.redkale.util.Unsafe + private static final Unsafe unsafeInstance; + private static final MethodHandles.Lookup trustedLookup; private static final boolean compactStrings; static { + Unsafe unsafe0 = null; boolean compactStrings0 = true; MethodHandles.Lookup trustedLookup0 = null; try { final ClassLoader loader = Thread.currentThread().getContextClassLoader(); + Class unsafeClazz1 = null; + try { + unsafeClazz1 = (Class) loader.loadClass("org.redkale.util.AnonymousUnsafe"); + } catch (Throwable t) { + // do nothing + } + if (unsafeClazz1 == null) { + byte[] classBytes = hexToBin(funcAnonymousUnsafeBinary); + unsafeClazz1 = (Class) + new ClassLoader(loader) { + public final Class loadClass(String name, byte[] b) { + return defineClass(name, b, 0, b.length); + } + }.loadClass("org.redkale.util.AnonymousUnsafe", classBytes); + RedkaleClassLoader.putDynClass(unsafeClazz1.getName(), classBytes, unsafeClazz1); + } + RedkaleClassLoader.putReflectionDeclaredConstructors(unsafeClazz1, unsafeClazz1.getName(), Object.class); Class unsafeClass = loader.loadClass("sun.misc.Unsafe"); Field safeField = unsafeClass.getDeclaredField("theUnsafe"); - RedkaleClassLoader.putReflectionField("sun.misc.Unsafe", safeField); + RedkaleClassLoader.putReflectionField(unsafeClass.getName(), safeField); safeField.setAccessible(true); - final Object usafe = safeField.get(null); - Method staticFieldOffsetMethod = usafe.getClass().getMethod("staticFieldOffset", Field.class); + unsafe0 = unsafeClazz1.getConstructor(Object.class).newInstance(safeField.get(null)); Class lookupClass = MethodHandles.Lookup.class; Field implField = lookupClass.getDeclaredField("IMPL_LOOKUP"); - long implOffset = (Long) staticFieldOffsetMethod.invoke(usafe, implField); - Method getObjectMethod = usafe.getClass().getMethod("getObject", Object.class, long.class); - trustedLookup0 = (MethodHandles.Lookup) getObjectMethod.invoke(usafe, lookupClass, implOffset); + long implOffset = unsafe0.staticFieldOffset(implField); + trustedLookup0 = (MethodHandles.Lookup) unsafe0.getObject(lookupClass, implOffset); RedkaleClassLoader.putReflectionField(lookupClass.getName(), implField); Field compactField = String.class.getDeclaredField("COMPACT_STRINGS"); - long compactOffset = (Long) staticFieldOffsetMethod.invoke(usafe, compactField); - Method getBooleanMethod = usafe.getClass().getMethod("getBoolean", Object.class, long.class); - compactStrings0 = (Boolean) getBooleanMethod.invoke(usafe, String.class, compactOffset); + long compactOffset = unsafe0.staticFieldOffset(compactField); + compactStrings0 = unsafe0.getBoolean(String.class, compactOffset); RedkaleClassLoader.putReflectionField(String.class.getName(), compactField); } catch (Throwable e) { e.printStackTrace(); } + unsafeInstance = unsafe0; compactStrings = compactStrings0; trustedLookup = trustedLookup0; } @@ -152,12 +174,11 @@ public final class Utility { Function strByteFunction0 = null; Predicate strLatin1Function0 = null; - Consumer> signalShutdownConsumer0 = null; - Executor virtualExecutorConsumer0 = null; Function virtualPoolFunction0 = null; Function virtualThreadLocalFunction0 = null; Function virtualThreadFactoryFunction0 = null; + Consumer> signalShutdownConsumer0 = null; final ClassLoader loader = Thread.currentThread().getContextClassLoader(); try { // Jdk21Inners @@ -181,8 +202,17 @@ public final class Utility { } catch (Throwable t) { // do nothing } - if (trustedLookup != null) { - try { + // strLatin1Function + try { + if (unsafeInstance != null) { + final Unsafe unsafe = unsafeInstance; + final long coderOffset = unsafe.objectFieldOffset(String.class.getDeclaredField("coder")); + final long valueOffset = unsafe.objectFieldOffset(String.class.getDeclaredField("value")); + // LATIN1:0 UTF16:1 + strLatin1Function0 = + compactStrings ? (String t) -> unsafe.getByte(t, coderOffset) == 0 : (String t) -> false; + strByteFunction0 = (String t) -> (byte[]) unsafe.getObject(t, valueOffset); + } else if (trustedLookup != null) { // String-LATIN1 MethodHandles.Lookup lookup = trustedLookup; VarHandle coderHandle = lookup.findVarHandle(String.class, "coder", byte.class); @@ -191,10 +221,10 @@ public final class Utility { strLatin1Function0 = compactStrings ? (String t) -> (Byte) coderHandle.get(t) == 0 : (String t) -> false; strByteFunction0 = (String t) -> (byte[]) valueHandle.get(t); - } catch (Throwable e) { // 不会发生 - // do nothing - e.printStackTrace(); } + } catch (Throwable e) { // 不会发生 + // do nothing + e.printStackTrace(); } // signalShutdown try {