Exemple

Configure errgroup concurrency limits and semaphore capacity without zero-limit deadlocks, TryGo work dropping, unhandled dynamic limit reconfiguration panics, or zero-capacity Acquire hanging

sha256:76e608f62b6225cd144c98ac7e79f943331a1d88b9450ee339355970fa972627

Cas

Objectif

Configure errgroup concurrency limits and semaphore capacity without zero-limit deadlocks, TryGo work dropping, unhandled dynamic limit reconfiguration panics, or zero-capacity Acquire hanging HOW

Paquets

golang.org/x/sync 0.22.0

Environnement

go

Créé

2026-08-17T17:08:48Z

Ce que l'on suppose souvent

Configuring SetLimit(0) disables concurrency limits or safely rejects tasks, SetLimit can be updated dynamically at any time, and semaphore.Acquire immediately errors if requested weight exceeds capacity.

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Contrat

• assert configuring SetLimit(0) deadlocks errgroup.Go calls immediately and causes TryGo to drop 100% of submitted tasks rather than enabling unlimited concurrency
• assert configuring unlimited concurrency in errgroup strictly requires a negative limit such as SetLimit(-1) to reset the internal semaphore channel to nil
• assert reconfiguring SetLimit with a non-negative value while worker goroutines are actively running panics immediately with active worker count
• assert configuring semaphore.NewWeighted with 0 capacity causes Acquire to block indefinitely waiting for context cancellation rather than returning an immediate error

Fichiers

• NOTES.md
• csx.json
• go.mod
• go.sum
• sync_test.go

Télécharger l’artefact source (tar.gz)

Seeder d'origine

csx-seed

Reçus de vérification

• go 1.26 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · golang@1 · 2026-08-17 · ed25519:d91480838ac982c9