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better cleanup

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This commit is contained in:
Christien Rioux 2023-07-30 01:25:50 -04:00
parent 672bcd5c3d
commit 8952751cb0
1 changed files with 28 additions and 8 deletions
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20
lib/veilid_support/dht_short_array.dart
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@ -32,9 +32,12 @@ class DHTShortArray {
case DHTSchemaSMPL():
throw StateError('Wrote kind of DHT record for DHTShortArray');
}
assert(stride <= MAX_ELEMENTS, 'stride too long');
_stride = stride;
}
static const MAX_ELEMENTS = 256;
// Head DHT record
final DHTRecord _headRecord;
late final int _stride;
@ -44,10 +47,16 @@ class DHTShortArray {
static Future<DHTShortArray> create(VeilidRoutingContext dhtctx, int stride,
{DHTRecordCrypto? crypto}) async {
assert(stride <= MAX_ELEMENTS, 'stride too long');
final dhtRecord = await DHTRecord.create(dhtctx,
schema: DHTSchema.dflt(oCnt: stride + 1), crypto: crypto);
try {
final dhtShortArray = DHTShortArray(dhtRecord: dhtRecord);
return dhtShortArray;
} on Exception catch (_) {
await dhtRecord.delete();
rethrow;
}
}
static Future<DHTShortArray> openRead(
@ -55,9 +64,14 @@ class DHTShortArray {
{DHTRecordCrypto? crypto}) async {
final dhtRecord =
await DHTRecord.openRead(dhtctx, dhtRecordKey, crypto: crypto);
try {
final dhtShortArray = DHTShortArray(dhtRecord: dhtRecord);
await dhtShortArray._refreshHead();
return dhtShortArray;
} on Exception catch (_) {
await dhtRecord.close();
rethrow;
}
}
static Future<DHTShortArray> openWrite(
@ -68,9 +82,14 @@ class DHTShortArray {
}) async {
final dhtRecord =
await DHTRecord.openWrite(dhtctx, dhtRecordKey, writer, crypto: crypto);
try {
final dhtShortArray = DHTShortArray(dhtRecord: dhtRecord);
await dhtShortArray._refreshHead();
return dhtShortArray;
} on Exception catch (_) {
await dhtRecord.close();
rethrow;
}
}
////////////////////////////////////////////////////////////////
@ -232,6 +251,7 @@ class DHTShortArray {
// xxx: swap
// xxx: remove
// xxx: clear
// xxx ensure these write the head back out because they change it
Future<Uint8List?> getItem(int index, {bool forceRefresh = false}) async {
await _refreshHead(forceRefresh: forceRefresh, onlyUpdates: true);