[jira] [Updated] (IGNITE-18350) Redesign two ciollections of lock modes to a bitset into the heap lock manager

["Vladislav Pyatkov (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IGNITE-18350?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vladislav Pyatkov updated IGNITE-18350:
---------------------------------------
    Summary: Redesign two ciollections of lock modes to a bitset into the heap lock manager  (was: Redesign two ciollection of lock modes to a bitset into the heap lock manager)

> Redesign two ciollections of lock modes to a bitset into the heap lock manager
> ------------------------------------------------------------------------------
>
>                 Key: IGNITE-18350
>                 URL: https://issues.apache.org/jira/browse/IGNITE-18350
>             Project: Ignite
>          Issue Type: Improvement
>            Reporter: Vladislav Pyatkov
>            Priority: Major
>              Labels: ignite-3
>
> We have two collection that store lock modes:
> {code}
> HeapLockManager.WaiterImpl#locks
> HeapLockManager.WaiterImpl#intendedLocks
> {code}
> That is done for continent way to implement all lock manager requirement. But for optimization, we can do this through _BitSet_. The redesign is possible because we have predefined lock modes (_LockMode_) and attempts to accesses to the modes are bounded. The amount of attempts significantly less than MaxInt value.
> The optimization allows using less memory for lock on each entry.



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