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  1. JDK
  2. JDK-7095194

G1: HeapRegion::GrainBytes, GrainWords, and CardsPerRegion should be size_t

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    • Enhancement
    • Status: Closed
    • P4
    • Resolution: Fixed
    • 7u2
    • hs23
    • hotspot
    • None
    • gc
    • b02
    • generic
    • generic
    • Not verified

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      Description

        As part of the review comments for 7092245, it was suggested that a more complete solution would be to redeclare HeapRegion::GrainBytes as a size_t. Currently it is declared as an int.

        The size_t type is unsigned. So while it is unlikely we will need to be able to represent a heap region size > 2G in the next decade or so, changing the declaration will help type checking.

        There are 2 other values associated with heap region size that should probably be changed from int to size_t too: GrainWords and CardsPerRegion.

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                johnc John Cuthbertson
                johnc John Cuthbertson
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