Решение на упр.11 задача 1 от Деян Делчев

Обратно към всички решения

Към профила на Деян Делчев

Код

use std::time::Duration;

pub async fn run_task(id: usize, duration: Duration) -> Result<String, String> {

tokio::time::sleep(duration).await;

let duration_ms = duration.as_millis();

if duration_ms > 800 {

Err(format!("Task {id} timed out"))

} else {

Ok(format!("Task {id} finished in {duration_ms} ms"))

}

}

use std::io::Write;

pub async fn manage_tasks(task_infos: &[(usize, Duration)], w: &mut dyn Write) {

let mut tasks = tokio::task::JoinSet::new();

for &(id, duration) in task_infos {

tasks.spawn(run_task(id, duration));

}

let (mut successful_count, mut failed_count) = (0, 0);

while let Some(task) = tasks.join_next().await {

let result = task.unwrap();

let msg = match result {

Ok(msg) => {

successful_count += 1;

msg

}

Err(msg) => {

failed_count += 1;

msg

}

};

writeln!(w, "{}", msg).unwrap();

}

writeln!(w, "Successful tasks: {}", successful_count).unwrap();

writeln!(w, "Failed tasks: {}", failed_count).unwrap();

}

Лог от изпълнението

Updating crates.io index
     Locking 46 packages to latest compatible versions
   Compiling proc-macro2 v1.0.104
   Compiling libc v0.2.178
   Compiling unicode-ident v1.0.22
   Compiling quote v1.0.42
   Compiling syn v2.0.111
   Compiling futures-core v0.3.31
   Compiling parking_lot_core v0.9.12
   Compiling futures-sink v0.3.31
   Compiling pin-project-lite v0.2.16
   Compiling futures-channel v0.3.31
   Compiling futures-task v0.3.31
   Compiling slab v0.4.11
   Compiling cfg-if v1.0.4
   Compiling pin-utils v0.1.0
   Compiling futures-io v0.3.31
   Compiling scopeguard v1.2.0
   Compiling smallvec v1.15.1
   Compiling memchr v2.7.6
   Compiling lock_api v0.4.14
   Compiling errno v0.3.14
   Compiling signal-hook-registry v1.4.8
   Compiling parking_lot v0.12.5
   Compiling socket2 v0.6.1
   Compiling futures-macro v0.3.31
   Compiling tokio-macros v2.6.0
   Compiling mio v1.1.1
   Compiling futures-util v0.3.31
   Compiling bytes v1.11.0
   Compiling tokio v1.48.0
   Compiling futures-executor v0.3.31
   Compiling futures v0.3.31
   Compiling solution v0.1.0 (/tmp/d20251228-4108951-mkv8i/solution)
    Finished `test` profile [unoptimized + debuginfo] target(s) in 17.45s
     Running tests/solution_test.rs (target/debug/deps/solution_test-f512224d9fb3caf8)

running 1 test
test solution_test::test_basic ... ok

test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.20s

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