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  1. JDK
  2. JDK-8184334

Generalizing Atomic with templates

    Details

    • Type: Enhancement
    • Status: Closed
    • Priority: P3
    • Resolution: Other
    • Affects Version/s: 10
    • Fix Version/s: 10
    • Component/s: hotspot
    • Labels:
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      Description

      The Atomic class mostly uses the JNI-specific j-types (jbyte, jshort, jint, jlong). This has led to wide-spread pollution of j-types in the C++ code base.

      Another problem is that when dealing with certain inherently not j-typed types like pointers, hacks were built that allowed them using _ptr member functions that had to be specialized on every architecture supported by Java.

      Yet another problem is yet another exception, like size_t, that does not quite fit being a pointer and isn't necessarily mapped to any j-type. Then yet more exceptions were built on top.

      As a remedy to the above mentioned problems, I propose to generalize the Atomic implementation to use templates instead.

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              • Assignee:
                eosterlund Erik Ă–sterlund
                Reporter:
                eosterlund Erik Ă–sterlund
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                • Created:
                  Updated:
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