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feat: Grow sleep durations on errors in Imap::fake_idle() (#4424)

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iequidoo
2023-08-05 23:01:14 -03:00
committed by iequidoo
parent d4d6ced957
commit ba8f1bfcfd
1 changed files with 9 additions and 4 deletions
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13
src/imap/idle.rs
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@@ -135,10 +135,8 @@ impl Imap {
};
info!(context, "IMAP-fake-IDLEing folder={:?}", watch_folder);
// check every minute if there are new messages
// TODO: grow sleep durations / make them more flexible
let mut interval = tokio::time::interval(Duration::from_secs(60));
const TIMEOUT_INIT_MS: u64 = 60_000;
let mut timeout_ms: u64 = TIMEOUT_INIT_MS;
enum Event {
Tick,
Interrupt,
@@ -146,6 +144,12 @@ impl Imap {
// loop until we are interrupted or if we fetched something
loop {
use futures::future::FutureExt;
use rand::Rng;
let mut interval = tokio::time::interval(Duration::from_millis(timeout_ms));
timeout_ms = timeout_ms
.saturating_add(rand::thread_rng().gen_range((timeout_ms / 2)..=timeout_ms));
interval.tick().await; // The first tick completes immediately.
match interval
.tick()
.map(|_| Event::Tick)
@@ -188,6 +192,7 @@ impl Imap {
{
Ok(res) => {
info!(context, "fetch_new_messages returned {:?}", res);
timeout_ms = TIMEOUT_INIT_MS;
if res {
break;
}