rust/crates/salsa/tests/parallel/independent.rs
2024-02-07 16:29:46 +01:00

30 lines
780 B
Rust

use crate::setup::{ParDatabase, ParDatabaseImpl};
use salsa::ParallelDatabase;
/// Test two `sum` queries (on distinct keys) executing in different
/// threads. Really just a test that `snapshot` etc compiles.
#[test]
fn in_par_two_independent_queries() {
let mut db = ParDatabaseImpl::default();
db.set_input('a', 100);
db.set_input('b', 10);
db.set_input('c', 1);
db.set_input('d', 200);
db.set_input('e', 20);
db.set_input('f', 2);
let thread1 = std::thread::spawn({
let db = db.snapshot();
move || db.sum("abc")
});
let thread2 = std::thread::spawn({
let db = db.snapshot();
move || db.sum("def")
});
assert_eq!(thread1.join().unwrap(), 111);
assert_eq!(thread2.join().unwrap(), 222);
}