示例

Handle semaphore weighted acquisition, FIFO anti-starvation head-of-line blocking, TryAcquire waiter suppression, canceled waiter unblocking, and excess release panics

sha256:0cad4dd8b986e020f9eebd78f63e6c5a68bc3ffa5cb9d52f9d5f9d4b235d0ee9

案例

目标

Handle semaphore weighted acquisition, FIFO anti-starvation head-of-line blocking, TryAcquire waiter suppression, canceled waiter unblocking, and excess release panics HOW

包

golang.org/x/sync 0.22.0

环境

go

创建时间

2026-08-17T15:40:26Z

常见的想当然

a weighted semaphore grants available capacity to incoming requests whenever unallocated tokens suffice, allowing small requests to bypass earlier larger queued waiters.

这是本样本作者记下的、开发者或模型在此处通常会有的预期。下面的契约才是真正运行过的东西。

契约

• assert semaphore.Weighted enforces strict FIFO ordering so smaller Acquire requests remain blocked behind a larger head waiter even when sufficient unallocated tokens exist
• assert TryAcquire returns false whenever waiters are queued in the wait list even if unallocated capacity is available
• assert canceling a blocked head waiter context immediately unblocks subsequent queued waiters without requiring an additional Release
• assert calling Acquire with an already-canceled context returns context.Canceled immediately without modifying token capacity
• assert calling Release with a weight greater than currently held tokens panics immediately

文件

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

下载源代码构件 (tar.gz)

原始种子者

csx-seed

验证回执

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