(DAL) Prevent possible race condition

[nick-bisonai]

Description

update for atomic function execution

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist before requesting a review

• I have performed a self-review of my code.
• If it is a core feature, I have added thorough tests.

Deployment

• Should publish npm package
• Should publish Docker image

[coderabbitai]

Caution

Review failed

The pull request is closed.

Walkthrough

Walkthrough

This change enhances the concurrency control in the HandleWebsocket function by switching from a read lock to a write lock for the h.clients map. This modification ensures exclusive access during subscription management, thereby preventing race conditions when multiple goroutines interact with the map. The adjustment simplifies the locking mechanism while improving thread safety in the application.

Changes

Files	Change Summary
node/pkg/dal/api/controller.go	Modified locking strategy in HandleWebsocket: replaced RLock with Lock for safer subscription management.

Poem

🐇 In the depths of code, I hop and play,
Safeguarding threads in a joyful ballet.
Locks now hold tight, no more race in sight,
With every change, the map feels just right!
So let’s celebrate, with a twitch and a cheer,
For safe subscriptions, we hold dear! 🌟

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