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use std::{future::Future, time::Duration};
pub fn retry<A, F, R, E>(
mut args: A,
f: F,
max_retries: usize,
mut timeout: Duration,
) -> Result<R, E>
where
F: Fn(&mut A) -> Result<R, E>,
{
let mut retries = 0usize;
loop {
match f(&mut args) {
Ok(value) => return Ok(value),
Err(e) => {
if retries >= max_retries {
return Err(e);
}
retries += 1;
std::thread::sleep(timeout);
timeout += timeout;
}
}
}
}
pub async fn retry_async<A, F, Fut, R, E>(
mut args: A,
f: F,
max_retries: usize,
mut timeout: Duration,
) -> Result<R, E>
where
F: Fn(&mut A) -> Fut,
Fut: Future<Output = Result<R, E>>,
{
let mut retries = 0usize;
loop {
match f(&mut args).await {
Ok(value) => return Ok(value),
Err(e) => {
if retries >= max_retries {
return Err(e);
}
retries += 1;
tokio::time::sleep(timeout).await;
timeout += timeout;
}
}
}
}
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