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Use lock free strategy for several Subscription implementations #568

Merged
merged 9 commits into from
Dec 8, 2013
Merged

Use lock free strategy for several Subscription implementations #568

merged 9 commits into from
Dec 8, 2013

Commits on Dec 5, 2013

  1. Use lock free strategy 

    Reduce contention by using CAS (Compare And Swap) operations to replace
subscription
    @jloisel
    jloisel committed Dec 5, 2013
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  2. Make unsubscribe + reference modification an atomic operation

    @jloisel
    jloisel committed Dec 5, 2013
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  3. Lock free strategy using a sentinel (Thanks to akarnokd)

    @jloisel
    jloisel committed Dec 5, 2013
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  4. Code simplification

    @jloisel
    jloisel committed Dec 5, 2013
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  5. Simplify code; Junits

    @jloisel
    jloisel committed Dec 5, 2013
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  6. fix: getSubscription should not expose internal sentinel subscription

    @jloisel
    jloisel committed Dec 5, 2013
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  7. JUnit setting subscription concurrently

    @jloisel
    jloisel committed Dec 5, 2013
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Commits on Dec 6, 2013

  1. Return null on getSubscription() when previously unsubscribed to match 

    initial contract
    @jloisel
    jloisel committed Dec 6, 2013
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Commits on Dec 8, 2013

  1. use non-locking state machine based on atomic reference

    @jloisel
    jloisel committed Dec 8, 2013
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