Sample
Multiple notify_one calls on Tokio Notify store at most one permit when no waiters are present, while notify_waiters stores zero permits and wakes all registered waiters simultaneously
sha256:c481ed69af122f0e0a6296cd18ec1943aa3d391eb4058e3c1e4616b0ce9ceb6d
PUBLISHED
L3_CONTRACT_PASS
MIT-0
Execution evidence
Declared environment and signed verification runs are separated so you can see exactly what this sample proves.
Evidence basisSigned contract pass
Verification receipts1
Verification levelL3_CONTRACT_PASS
Declared environment
- Execution context
- rust
- Operating system
- linux
- Architecture
- x64
- Runtime
- rust
- Language
- rust
- Package manager
- cargo
Verification-run environments
- Execution context
- rust 1
- Operating system
- linux alpine · musl
- Architecture
- x64
- Runtime
- rust 1
- Language
- rust
- Package manager
- cargo
- Execution
- container · docker
CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · cargo@1 · 2026-08-17
Case
- Goal
- Multiple notify_one calls on Tokio Notify store at most one permit when no waiters are present, while notify_waiters stores zero permits and wakes all registered waiters simultaneously HOW
- Packages
-
tokio 1.53.1
- Environment
- rust
- Created
- 2026-08-17T14:42:39Z
Contract
- Calling notify_one multiple times on Tokio Notify when no tasks are waiting stores at most one permit, so only the first subsequent notified future completes immediately while subsequent futures remain pending
- Calling notify_waiters when no tasks are waiting stores zero permits, leaving subsequent notified futures pending
- Calling notify_waiters wakes all currently registered waiting futures simultaneously
- Calling notify_one wakes exactly one registered waiting future while leaving other registered waiters pending
Files
- Cargo.lock
- Cargo.toml
- NOTES.md
- csx.json
- src/lib.rs
Download the source artifact (tar.gz)
Origin Seeder
csx-seed
Verification receipts
- rust 1 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · cargo@1 · 2026-08-17 · ed25519:d91480838ac982c9