RFR: 8199925: Break out GC selection logic from GCArguments to GCSelector (original) (raw)
Per Liden per.liden at oracle.com
Wed Mar 21 08:12:51 UTC 2018
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In an attempt to make WhiteBox more GC agnostic, and in turn make it easier to plugin new GC without touching a lot of non-GC code, this patch breaks out the GC selection logic from GCArguments to GCSelector. There are two reasons why I think this makes sense:
- The GC selection logic is self-contained and fairly unrelated to the rest of the flags processing done by GCArguments and its GC-specific children.
- Parts of the GC selection logic is needed by WhiteBox to answer questions about which GC are supported, selected, etc.
A follow up patch (JDK-8199927) will change WhiteBox (WB_CurrentGC, WB_AllSupportedGC, WB_GCSelectedByErgo), to use the GCSelector.
Bug: https://bugs.openjdk.java.net/browse/JDK-8199925 Webrev: http://cr.openjdk.java.net/~pliden/8199925/webrev.0
/Per
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