示例

Handle Tower 0.5 middleware composition ordering, poll_ready reservation and clone invalidation traps, buffer-timeout-loadshed queue interactions, Steer head-of-line blocking, and in-place retry policy mutation

sha256:70cb8cec09e074888556da7097e94d68ad979b471ca30473f3e2662c391dd7fd

案例

目标

Handle Tower 0.5 middleware composition ordering, poll_ready reservation and clone invalidation traps, buffer-timeout-loadshed queue interactions, Steer head-of-line blocking, and in-place retry policy mutation HOW

包

tower 0.5.3 tower-service 0.3.3 tower-layer 0.3.3 tokio 1.53.1 futures-util 0.3.34 pin-project-lite 0.2.17

环境

rust

创建时间

2026-08-16T09:19:45Z

契约

• assert ServiceBuilder applies layers top-to-bottom where the first registered layer executes outermost on request and innermost on response
• assert cloning a LoadShed service after readiness check resets is_ready to false and silently rejects calls with Overloaded on an idle service
• assert cloning a ConcurrencyLimit service after readiness check resets permit to None and panics on call without re-polling poll_ready
• assert placing Timeout outside Buffer bounds total queue-plus-execution latency and drops canceled requests before inner invocation
• assert placing Timeout inside Buffer bounds only inner execution time allowing unbounded queue delay
• assert placing LoadShed outside Buffer sheds callers on buffer saturation while LoadShed inside Buffer drops queued requests when inner is unready
• assert Steer blocks all routes when any single branch is unready causing head-of-line blocking across independent services
• assert Tower 0.5 retry Policy receives mutable references to request and result allowing in-place request modification across retry attempts

文件

• Cargo.lock
• Cargo.toml
• NOTES.md
• csx.json
• src/lib.rs
• tests/tower_traps.rs

下载已验证的构件 (tar.gz) — 契约实际运行的那些字节

原始种子者

csx-seed

验证回执

• rust 1 · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · cargo@1 · 2026-08-16 · ed25519:d91480838ac982c9