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  1. JDK
  2. JDK-8080588 VarHandles development
  3. JDK-8149469

ByteBuffer API and implementation enhancements for VarHandles

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Details

    • Sub-task
    • Resolution: Fixed
    • P4
    • 9
    • None
    • core-libs
    • b114

    Description

      Enhance the ByteBuffer API to query for misalignment and obtain an aligned slice for a given unit size, which on supported platforms ensures unit size access is atomic at known indexes, and partially atomic at other indexes.

      Enhance the ByteBuffer implementations so that VarHandles can access ByteBuffer contents uniformly for direct/heap and read/write buffers. These may also enable future unifying enhancements of direct and heap buffers using the unsafe double address mode.

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          Sub-task - The sub-task of the issue JDK-8149644 Integrate VarHandles

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          Enhancement - null JDK-8151163 All Buffer implementations should leverage Unsafe unaligned accessors

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Resolved
          relates to

          Enhancement - null JDK-8158695 Remove fork to xxcodeArrayLoop() and xxcodeBufferLoop() in sun.nio.cs coders

          • P3 - Major loss of function.
          • Closed

          Enhancement - null JDK-6509032 (bf) Monomorphic implementations for Direct and Heap versions of X-Buffer

          • P3 - Major loss of function.
          • Open

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              psandoz Paul Sandoz
              psandoz Paul Sandoz
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                Updated:
                Resolved: