Class PlatformDependent0

java.lang.Object
io.netty.util.internal.PlatformDependent0
final class PlatformDependent0 extends java.lang.Object
The PlatformDependent operations which requires access to sun.misc.*.

  • Field Details

    • logger

      private static final InternalLogger logger

    • ADDRESS_FIELD_OFFSET

      private static final long ADDRESS_FIELD_OFFSET

    • BYTE_ARRAY_BASE_OFFSET

      private static final long BYTE_ARRAY_BASE_OFFSET

    • INT_ARRAY_BASE_OFFSET

      private static final long INT_ARRAY_BASE_OFFSET

    • INT_ARRAY_INDEX_SCALE

      private static final long INT_ARRAY_INDEX_SCALE

    • LONG_ARRAY_BASE_OFFSET

      private static final long LONG_ARRAY_BASE_OFFSET

    • LONG_ARRAY_INDEX_SCALE

      private static final long LONG_ARRAY_INDEX_SCALE

    • DIRECT_BUFFER_CONSTRUCTOR

      private static final MethodHandle DIRECT_BUFFER_CONSTRUCTOR

    • ALLOCATE_ARRAY_METHOD

      private static final MethodHandle ALLOCATE_ARRAY_METHOD

    • ALIGN_SLICE

      private static final MethodHandle ALIGN_SLICE

    • OFFSET_SLICE

      private static final MethodHandle OFFSET_SLICE

    • ABSOLUTE_PUT_BUFFER

      private static final MethodHandle ABSOLUTE_PUT_BUFFER

    • ABSOLUTE_PUT_ARRAY

      private static final MethodHandle ABSOLUTE_PUT_ARRAY

    • MEMORY_SEGMENT_ADDRESS_OF_BUFFER

      private static final MethodHandle MEMORY_SEGMENT_ADDRESS_OF_BUFFER

    • SPLITTABLE_RANDOM_NEXT_BYTES

      private static final MethodHandle SPLITTABLE_RANDOM_NEXT_BYTES

    • IS_ANDROID

      private static final boolean IS_ANDROID

    • JAVA_VERSION

      private static final int JAVA_VERSION

    • EXPLICIT_NO_UNSAFE_CAUSE

      private static final java.lang.Throwable EXPLICIT_NO_UNSAFE_CAUSE

    • UNSAFE_UNAVAILABILITY_CAUSE

      private static final java.lang.Throwable UNSAFE_UNAVAILABILITY_CAUSE

    • RUNNING_IN_NATIVE_IMAGE

      private static final boolean RUNNING_IN_NATIVE_IMAGE

    • IS_EXPLICIT_TRY_REFLECTION_SET_ACCESSIBLE

      private static final boolean IS_EXPLICIT_TRY_REFLECTION_SET_ACCESSIBLE

    • IS_VIRTUAL_THREAD_METHOD_HANDLE

      static final MethodHandle IS_VIRTUAL_THREAD_METHOD_HANDLE

    • UNSAFE

      static final sun.misc.Unsafe UNSAFE

    • HASH_CODE_ASCII_SEED

      static final int HASH_CODE_ASCII_SEED
      See Also:

    • HASH_CODE_C1

      static final int HASH_CODE_C1
      See Also:

    • HASH_CODE_C2

      static final int HASH_CODE_C2
      See Also:

    • UNSAFE_COPY_THRESHOLD

      private static final long UNSAFE_COPY_THRESHOLD
      Limits the number of bytes to copy per Unsafe.copyMemory(long, long, long) to allow safepoint polling during a large copy.
      See Also:

    • UNALIGNED

      private static final boolean UNALIGNED

    • BITS_MAX_DIRECT_MEMORY

      private static final long BITS_MAX_DIRECT_MEMORY

  • Constructor Details

    • PlatformDependent0

      private PlatformDependent0()

  • Method Details

    • getIsVirtualThreadMethodHandle

      private static MethodHandle getIsVirtualThreadMethodHandle()

    • isVirtualThread

      static boolean isVirtualThread(java.lang.Thread thread)
      Parameters:
      thread - The thread to be checked.
      Returns:
      true if this Thread is a virtual thread, false otherwise.

    • isNativeImage

      static boolean isNativeImage()

    • isExplicitNoUnsafe

      static boolean isExplicitNoUnsafe()

    • explicitNoUnsafeCause0

      private static java.lang.Throwable explicitNoUnsafeCause0()

    • isUnaligned

      static boolean isUnaligned()

    • bitsMaxDirectMemory

      static long bitsMaxDirectMemory()
      Any value >= 0 should be considered as a valid max direct memory value.

    • hasUnsafe

      static boolean hasUnsafe()

    • getUnsafeUnavailabilityCause

      static java.lang.Throwable getUnsafeUnavailabilityCause()

    • hasMemorySegmentAddressOfBuffer

      static boolean hasMemorySegmentAddressOfBuffer()

    • unalignedAccess

      static boolean unalignedAccess()

    • splittableRandomNextBytes

      static void splittableRandomNextBytes(java.util.SplittableRandom rng, byte[] data)

    • throwException

      static void throwException(java.lang.Throwable cause)

    • throwException0

      private static <E extends java.lang.Throwable> void throwException0(java.lang.Throwable t) throws E
      Throws:
      E

    • hasDirectBufferNoCleanerConstructor

      static boolean hasDirectBufferNoCleanerConstructor()

    • reallocateDirectNoCleaner

      static java.nio.ByteBuffer reallocateDirectNoCleaner(java.nio.ByteBuffer buffer, int capacity)

    • allocateDirectNoCleaner

      static java.nio.ByteBuffer allocateDirectNoCleaner(int capacity)

    • hasAlignSliceMethod

      static boolean hasAlignSliceMethod()

    • alignSlice

      static java.nio.ByteBuffer alignSlice(java.nio.ByteBuffer buffer, int alignment)

    • hasOffsetSliceMethod

      static boolean hasOffsetSliceMethod()

    • offsetSlice

      static java.nio.ByteBuffer offsetSlice(java.nio.ByteBuffer buffer, int index, int length)

    • hasAbsolutePutBufferMethod

      static boolean hasAbsolutePutBufferMethod()

    • hasAbsolutePutArrayMethod

      static boolean hasAbsolutePutArrayMethod()

    • absolutePut

      static java.nio.ByteBuffer absolutePut(java.nio.ByteBuffer dst, int dstOffset, java.nio.ByteBuffer src, int srcOffset, int length)

    • absolutePut

      static java.nio.ByteBuffer absolutePut(java.nio.ByteBuffer dst, int dstOffset, byte[] src, int srcOffset, int length)

    • hasAllocateArrayMethod

      static boolean hasAllocateArrayMethod()

    • allocateUninitializedArray

      static byte[] allocateUninitializedArray(int size)

    • newDirectBuffer

      static java.nio.ByteBuffer newDirectBuffer(long address, int capacity)

    • rethrowIfPossible

      private static void rethrowIfPossible(java.lang.Throwable cause)

    • hasDirectByteBufferAddress

      static boolean hasDirectByteBufferAddress(java.nio.ByteBuffer buffer)

    • directBufferAddress

      static long directBufferAddress(java.nio.ByteBuffer buffer)

    • byteArrayBaseOffset

      static long byteArrayBaseOffset()

    • getObject

      static java.lang.Object getObject(java.lang.Object object, long fieldOffset)

    • getInt

      static int getInt(java.lang.Object object, long fieldOffset)

    • getIntVolatile

      static int getIntVolatile(java.lang.Object object, long fieldOffset)

    • putOrderedInt

      static void putOrderedInt(java.lang.Object object, long fieldOffset, int value)

    • getAndAddInt

      static int getAndAddInt(java.lang.Object object, long fieldOffset, int value)

    • compareAndSwapInt

      static boolean compareAndSwapInt(java.lang.Object object, long fieldOffset, int expected, int value)

    • safeConstructPutInt

      static void safeConstructPutInt(java.lang.Object object, long fieldOffset, int value)

    • getLong

      private static long getLong(java.lang.Object object, long fieldOffset)

    • objectFieldOffset

      static long objectFieldOffset(java.lang.reflect.Field field)

    • getByte

      static byte getByte(long address)

    • getShort

      static short getShort(long address)

    • getInt

      static int getInt(long address)

    • getLong

      static long getLong(long address)

    • getByte

      static byte getByte(byte[] data, int index)

    • getByte

      static byte getByte(byte[] data, long index)

    • getShort

      static short getShort(byte[] data, int index)

    • getInt

      static int getInt(byte[] data, int index)

    • getInt

      static int getInt(int[] data, long index)

    • getLong

      static long getLong(byte[] data, int index)

    • getLong

      static long getLong(long[] data, long index)

    • putByte

      static void putByte(long address, byte value)

    • putShort

      static void putShort(long address, short value)

    • putShortOrdered

      static void putShortOrdered(long address, short newValue)

    • putInt

      static void putInt(long address, int value)

    • putLong

      static void putLong(long address, long value)

    • putByte

      static void putByte(byte[] data, int index, byte value)

    • putByte

      static void putByte(java.lang.Object data, long offset, byte value)

    • putShort

      static void putShort(byte[] data, int index, short value)

    • putInt

      static void putInt(byte[] data, int index, int value)

    • putLong

      static void putLong(byte[] data, int index, long value)

    • putObject

      static void putObject(java.lang.Object o, long offset, java.lang.Object x)

    • copyMemory

      static void copyMemory(long srcAddr, long dstAddr, long length)

    • copyMemoryWithSafePointPolling

      private static void copyMemoryWithSafePointPolling(long srcAddr, long dstAddr, long length)

    • copyMemory

      static void copyMemory(java.lang.Object src, long srcOffset, java.lang.Object dst, long dstOffset, long length)

    • copyMemoryWithSafePointPolling

      private static void copyMemoryWithSafePointPolling(java.lang.Object src, long srcOffset, java.lang.Object dst, long dstOffset, long length)

    • setMemory

      static void setMemory(long address, long bytes, byte value)

    • setMemory

      static void setMemory(java.lang.Object o, long offset, long bytes, byte value)

    • equals

      static boolean equals(byte[] bytes1, int startPos1, byte[] bytes2, int startPos2, int length)

    • equalsConstantTime

      static int equalsConstantTime(byte[] bytes1, int startPos1, byte[] bytes2, int startPos2, int length)

    • isZero

      static boolean isZero(byte[] bytes, int startPos, int length)

    • hashCodeAscii

      static int hashCodeAscii(byte[] bytes, int startPos, int length)

    • hashCodeAsciiCompute

      static int hashCodeAsciiCompute(long value, int hash)

    • hashCodeAsciiSanitize

      static int hashCodeAsciiSanitize(int value)

    • hashCodeAsciiSanitize

      static int hashCodeAsciiSanitize(short value)

    • hashCodeAsciiSanitize

      static int hashCodeAsciiSanitize(byte value)

    • getClassLoader

      static java.lang.ClassLoader getClassLoader(java.lang.Class<?> clazz)

    • getContextClassLoader

      static java.lang.ClassLoader getContextClassLoader()

    • getSystemClassLoader

      static java.lang.ClassLoader getSystemClassLoader()

    • addressSize

      static int addressSize()

    • allocateMemory

      static long allocateMemory(long size)

    • freeMemory

      static void freeMemory(long address)

    • reallocateMemory

      static long reallocateMemory(long address, long newSize)

    • isAndroid

      static boolean isAndroid()

    • isAndroid0

      private static boolean isAndroid0()

    • explicitTryReflectionSetAccessible0

      private static boolean explicitTryReflectionSetAccessible0()

    • isExplicitTryReflectionSetAccessible

      static boolean isExplicitTryReflectionSetAccessible()

    • javaVersion

      static int javaVersion()

    • javaVersion0

      private static int javaVersion0()

    • majorVersionFromJavaSpecificationVersion

      static int majorVersionFromJavaSpecificationVersion()

    • majorVersion

      static int majorVersion(java.lang.String javaSpecVersion)