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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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36
lib/veilid_support/dht_short_array.dart
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@ -32,9 +32,12 @@ class DHTShortArray {
case DHTSchemaSMPL(): case DHTSchemaSMPL():
throw StateError('Wrote kind of DHT record for DHTShortArray'); throw StateError('Wrote kind of DHT record for DHTShortArray');
} }
assert(stride <= MAX_ELEMENTS, 'stride too long');
_stride = stride; _stride = stride;
} }
static const MAX_ELEMENTS = 256;
// Head DHT record // Head DHT record
final DHTRecord _headRecord; final DHTRecord _headRecord;
late final int _stride; late final int _stride;
@ -44,10 +47,16 @@ class DHTShortArray {
static Future<DHTShortArray> create(VeilidRoutingContext dhtctx, int stride, static Future<DHTShortArray> create(VeilidRoutingContext dhtctx, int stride,
{DHTRecordCrypto? crypto}) async { {DHTRecordCrypto? crypto}) async {
assert(stride <= MAX_ELEMENTS, 'stride too long');
final dhtRecord = await DHTRecord.create(dhtctx, final dhtRecord = await DHTRecord.create(dhtctx,
schema: DHTSchema.dflt(oCnt: stride + 1), crypto: crypto); schema: DHTSchema.dflt(oCnt: stride + 1), crypto: crypto);
final dhtShortArray = DHTShortArray(dhtRecord: dhtRecord); try {
return dhtShortArray; final dhtShortArray = DHTShortArray(dhtRecord: dhtRecord);
return dhtShortArray;
} on Exception catch (_) {
await dhtRecord.delete();
rethrow;
}
} }
static Future<DHTShortArray> openRead( static Future<DHTShortArray> openRead(
@ -55,9 +64,14 @@ class DHTShortArray {
{DHTRecordCrypto? crypto}) async { {DHTRecordCrypto? crypto}) async {
final dhtRecord = final dhtRecord =
await DHTRecord.openRead(dhtctx, dhtRecordKey, crypto: crypto); await DHTRecord.openRead(dhtctx, dhtRecordKey, crypto: crypto);
final dhtShortArray = DHTShortArray(dhtRecord: dhtRecord); try {
await dhtShortArray._refreshHead(); final dhtShortArray = DHTShortArray(dhtRecord: dhtRecord);
return dhtShortArray; await dhtShortArray._refreshHead();
return dhtShortArray;
} on Exception catch (_) {
await dhtRecord.close();
rethrow;
}
} }
static Future<DHTShortArray> openWrite( static Future<DHTShortArray> openWrite(
@ -68,9 +82,14 @@ class DHTShortArray {
}) async { }) async {
final dhtRecord = final dhtRecord =
await DHTRecord.openWrite(dhtctx, dhtRecordKey, writer, crypto: crypto); await DHTRecord.openWrite(dhtctx, dhtRecordKey, writer, crypto: crypto);
final dhtShortArray = DHTShortArray(dhtRecord: dhtRecord); try {
await dhtShortArray._refreshHead(); final dhtShortArray = DHTShortArray(dhtRecord: dhtRecord);
return dhtShortArray; await dhtShortArray._refreshHead();
return dhtShortArray;
} on Exception catch (_) {
await dhtRecord.close();
rethrow;
}
} }
//////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////
@ -232,6 +251,7 @@ class DHTShortArray {
// xxx: swap // xxx: swap
// xxx: remove // xxx: remove
// xxx: clear // xxx: clear
// xxx ensure these write the head back out because they change it
Future<Uint8List?> getItem(int index, {bool forceRefresh = false}) async { Future<Uint8List?> getItem(int index, {bool forceRefresh = false}) async {
await _refreshHead(forceRefresh: forceRefresh, onlyUpdates: true); await _refreshHead(forceRefresh: forceRefresh, onlyUpdates: true);