madsim-macros

Changed

• madsim: No longer initialize the global logger on #[main] or #[test].

Fixed

• madsim: Fix Instant interception on ARM64 macOS caused by change in Rust nightly.

Changed

• madsim: Forbid creating system thread in simulation.
• madsim: Drop futures on killing node.
• madsim: Make Endpoint clonable.

Added

• madsim-tonic: Add missing methods of Endpoint and Server.

Fixed

• madsim-tokio: #[tokio::main] no longer requires madsim crate.

Removed

• madsim: Remove collections module since we can use std's directly.

Added

• madsim: Allow user to set the number of CPU cores and simulate std::thread::available_parallelism.
• madsim: Add MADSIM_TEST_JOBS environment variable to set the number of jobs to run simultaneously.
• madsim: Introduce runtime Builder.
• madsim: Expose seed via Handle::seed.

Fixed

• madsim: Fix the local address after bind 0.0.0.0.
• madsim-tonic: Client connecting to an invalid address should return error.

Removed

• madsim: Remove Runtime::{enable_determinism_check, take_rand_log}. Replaced by check_determinism.

Added

• Make deterministic on rand and std::{collections::{HashMap, HashSet}, time::{SystemTime, Instant}}.

  Exception: rand is not deterministic on linux. use madsim::rand instead.

Changed

• madsim-macros: Every simulation now runs on a new thread to ensure the determinism.
• madsim-tonic: Update tonic to v0.8. Additional system protoc is required.

Added

• Migrate a new crate madsim-tokio-postgres for simulation.
• madsim-tokio: Add task_local, task::LocalKey, signal::ctrl_c.
• madsim-tonic: Support Request::remote_addr and returning error from server.

Fixed

• madsim: Refactor TCP simulator and fix several bugs. (#18)
• madsim: Avoid some panics on panicking.

Added

• madsim: Add TCP simulation.
• madsim-tokio: Add task::consume_budget and task::Id.

Fixed

• madsim: Avoid duplicate connection and close unused connection on TCP.
• madsim-tokio: Fix full feature.

Added

• madsim: Add serde API to HashMap.
• madsim-norandom: A preview library for intercepting libc getrandom.

Changed

• Breaking: Change the way to enable simulation: #[cfg(feature = "sim")] -> #[cfg(madsim)].

Fixed

• Lock version on madsim dependencies to prevent API broken.

Added

• Add a new crate madsim-tokio for tokio simulation.
• madsim/sim: Add time::interval and task::yield_now.
• madsim/sim: Complete methods for Sleep, Elapsed, JoinError and JoinHandle.
• madsim-tonic: Add Server::layer but don't implement it.

Changed

• Breaking: madsim: Switch JoinHandle to tokio style which won't cancel task on drop.
• madsim-macros: Improve error message on panic in simulation.

Fixed

• madsim: Fix TCP performance issue by setting NODELAY.

TODO

Added

• A real world backend.

Added

• Deterministic check on test.

Changed

• Remove default time limit (300s) on test.
• Improve error message on context missing.

Fixed

• Fix double panic in the executor.
• Fix deterministic in time::timeout.

Added

• Deterministic async runtime.
• Basic simulated network and file system.