[utils] Add MutexMap #246
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[utils] Add MutexMap #246
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Pull Request Test Coverage Report for Build 12021
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patrick-ogrady
requested review from
alex-stone,
bobg,
cindyxkuang,
itstehkman,
septerr and
yfl92
alex-stone
reviewed
Nov 23, 2020
yfl92
approved these changes
Nov 23, 2020
This was referenced Dec 1, 2020
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Related: https://github.com/coinbase/rosetta-sdk-go/tree/patrick/priority-lock
This PR implements a new data structure called a
MutexMap.MutexMapallows the caller to acquire a global lock across any number of*PriorityMutexand to identify locks by some identifier (which enables very fine-grained locking). This data structure can be used to implement concurrent, non-conflicting database transactions instorage.Changes
MutexMapPriorityMutexandMutexMap: [utils] Implement PriorityMutex #244 (comment)Future Work
In a subsequent PR, we will implement another new data structure called
ShardedMapthat removes the need to acquire a global lock onentries.