rx.internal.util.unsafe

Class UnsafeAccess


  • public final class UnsafeAccess
extends Object
    All use of this class MUST first check that UnsafeAccess.isUnsafeAvailable() == true otherwise NPEs will happen in environments without "suc.misc.Unsafe" such as Android.

    • Field Detail

      • UNSAFE

        public static final sun.misc.Unsafe UNSAFE

    • Method Detail

      • isUnsafeAvailable

        public static final boolean isUnsafeAvailable()

      • getAndIncrementInt

        public static int getAndIncrementInt(Object obj,
                                     long offset)

      • getAndAddInt

        public static int getAndAddInt(Object obj,
                               long offset,
                               int n)

      • getAndSetInt

        public static int getAndSetInt(Object obj,
                               long offset,
                               int newValue)

      • compareAndSwapInt

        public static boolean compareAndSwapInt(Object obj,
                                        long offset,
                                        int expected,
                                        int newValue)

      • addressOf

        public static long addressOf(Class<?> clazz,
                             String fieldName)
        Returns the address of the specific field on the class and wraps a NoSuchFieldException into an internal error.

        One can avoid using static initializers this way and just assign the address directly to the target static field.

        Parameters:
        clazz - the target class
        fieldName - the target field name
        Returns:
        the address (offset) of the field