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This commit is contained in:
Christien Rioux 2024-02-11 14:17:10 -05:00
parent 634543910b
commit ff14969ffa
12 changed files with 226 additions and 192 deletions
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14
packages/async_tools/lib/src/single_async.dart
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@ -4,8 +4,8 @@ import 'async_tag_lock.dart';
AsyncTagLock<Object> _keys = AsyncTagLock();
void singleFuture(Object tag, Future<void> Function() closure,
{void Function()? onBusy}) {
void singleFuture<T>(Object tag, Future<T> Function() closure,
{void Function()? onBusy, void Function(T)? onDone}) {
if (!_keys.tryLock(tag)) {
if (onBusy != null) {
onBusy();
@ -13,7 +13,13 @@ void singleFuture(Object tag, Future<void> Function() closure,
return;
}
unawaited(() async {
await closure();
_keys.unlockTag(tag);
try {
final out = await closure();
if (onDone != null) {
onDone(out);
}
} finally {
_keys.unlockTag(tag);
}
}());
}