remove unnecessary mutex

[mdaliyan]

Changelog

• add some bullet points

Code Quality Assurance

• All tests pass locally.
• All tests pass in CI.
• Coverage is above 90%.
• All exposed functions, interfaces, and types have documentation.
• Run benchmarks again if there is functionality change.

Summary by CodeRabbit

• Refactor

  • Removed synchronization mechanisms from tag-related operations
  • Simplified locking strategy for pot-related operations

• Potential Impact

  • Removed thread-safe protections for concurrent tag and pot operations
  • May introduce potential race conditions in multi-threaded environments

[coderabbitai]

Caution

Review failed

The pull request is closed.

Walkthrough

The changes in the tags.go file involve the removal of synchronization mechanisms previously implemented using a sync.RWMutex. The rw field has been deleted from the tags struct, eliminating the locking mechanism for concurrent access. This means that methods like purge(), add(), and dropTagIfNoOtherEntriesExist() no longer provide thread-safe operations on the pairs map, potentially introducing race conditions in concurrent scenarios. Similarly, in pot.go, several methods have had their read-write lock protections removed, affecting the thread safety of the pot struct.

Changes

File	Change Summary
tags.go	- Removed rw sync.RWMutex field from tags struct - Deleted Lock() and Unlock() calls in multiple methods - Added read lock in getEntriesWithTags() method
pot.go	- Removed read locks in Len, Exists, ExpireTime, GetByTag, Get, DropTags, and Drop methods - Modified locking in Set method to only lock during append to window - Retained locking in dropExpiredEntries method

Possibly related PRs

• fix tag deletion issue #11: The changes in pot.go regarding the removal of read-write locks and the introduction of new methods for tag management are directly related to the modifications made in tags.go, particularly in terms of concurrency control and access to shared resources.

Poem

🐰 Mutex dance, now at an end,
Threads race free, no locks to mend
Caution whispers, "Beware the race!"
Synchronization lost without a trace
Rabbit warns: Concurrency's wild embrace 🚦

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📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between df241eb and e6bf71b.

📒 Files selected for processing (2)

• pot.go (1 hunks)
• tags.go (1 hunks)

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[mdaliyan]

@coderabbitai full review

[coderabbitai]

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Full review triggered.

[mdaliyan]

https://github.com/coderabbitai full review