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fix: reduce the scope of the last_full_folder_scan lock in scan_folders

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This makes it easier to ensure that holding this lock
does not result in deadlocks.
This commit is contained in:
link2xt
2025-05-20 18:12:14 +00:00
parent 0e45c2246f
commit 89df9536e9
1 changed files with 16 additions and 9 deletions
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25
src/imap/scan_folders.rs
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@@ -17,16 +17,24 @@ impl Imap {
session: &mut Session,
) -> Result<bool> {
// First of all, debounce to once per minute:
let mut last_scan = context.last_full_folder_scan.lock().await;
if let Some(last_scan) = *last_scan {
let elapsed_secs = time_elapsed(&last_scan).as_secs();
let debounce_secs = context
.get_config_u64(Config::ScanAllFoldersDebounceSecs)
.await?;
{
let mut last_scan = context.last_full_folder_scan.lock().await;
if let Some(last_scan) = *last_scan {
let elapsed_secs = time_elapsed(&last_scan).as_secs();
let debounce_secs = context
.get_config_u64(Config::ScanAllFoldersDebounceSecs)
.await?;
if elapsed_secs < debounce_secs {
return Ok(false);
if elapsed_secs < debounce_secs {
return Ok(false);
}
}
// Update the timestamp before scanning the folders
// to avoid holding the lock for too long.
// This means next scan is delayed even if
// the current one fails.
last_scan.replace(tools::Time::now());
}
info!(context, "Starting full folder scan");
@@ -94,7 +102,6 @@ impl Imap {
}
info!(context, "Found folders: {folder_names:?}.");
last_scan.replace(tools::Time::now());
Ok(true)
}
}