rust concurrent execution of f with parameter i. Tasks are independent and don't return any value.
To achieve concurrent execution of a function f
with parameter i
in Rust, you can make use of the std::thread
module. This module provides functionality for creating and managing threads in Rust.
Here is an example of how you can achieve concurrent execution of f
with different parameters using threads:
use std::thread;
fn main() {
let params = vec![1, 2, 3, 4, 5];
let handles: Vec<_> = params.into_iter().map(|i| {
thread::spawn(move || {
f(i);
})
}).collect();
for handle in handles {
handle.join().unwrap();
}
}
fn f(i: i32) {
// Do something with i
println!("Thread with parameter {} executed.", i);
}
In this example, we create a vector params
containing the parameters 1, 2, 3, 4, 5
that we want to pass to f
. We then use the into_iter()
method to convert the vector into an iterator, and map()
to create a new thread for each parameter.
Inside the map()
closure, we use thread::spawn()
to create a new thread, and pass the closure move || { f(i); }
as an argument. The move
keyword is used to move ownership of the parameter i
into the closure.
Finally, we collect all the thread handles into a vector handles
, and iterate over the handles using a for
loop. Inside the loop, we call join()
on each handle to wait for the corresponding thread to finish executing.
The function f
is defined separately and takes the parameter i
. You can replace the body of f
with your own code to perform the desired task.
When you run this code, you will see that the function f
is executed concurrently with different parameter values, as each thread executes independently.