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add chain height service in order to hold one subscription per coin

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sneurlax 2024-02-05 12:09:45 -06:00
parent 9b93dc78d2
commit 0d8f1c2b95
2 changed files with 14 additions and 3 deletions
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10
lib/electrumx_rpc/electrumx_chain_height_service.dart Normal file
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@ -0,0 +1,10 @@
import 'dart:async';
import 'package:stackwallet/utilities/enums/coin_enum.dart';
/// Store chain height subscriptions for each coin.
abstract class ElectrumxChainHeightService {
static Map<Coin, StreamSubscription<dynamic>?> subscriptions = {};
// Used to hold chain height subscriptions for each coin as in:
// ElectrumxChainHeightService.subscriptions[cryptoCurrency.coin] = sub;
}

7
lib/wallets/wallet/wallet_mixin_interfaces/electrumx_interface.dart
View file

@ -6,6 +6,7 @@ import 'package:bitcoindart/bitcoindart.dart' as bitcoindart;
import 'package:coinlib_flutter/coinlib_flutter.dart' as coinlib;
import 'package:isar/isar.dart';
import 'package:stackwallet/electrumx_rpc/cached_electrumx_client.dart';
import 'package:stackwallet/electrumx_rpc/electrumx_chain_height_service.dart';
import 'package:stackwallet/electrumx_rpc/electrumx_client.dart';
import 'package:stackwallet/electrumx_rpc/subscribable_electrumx_client.dart';
import 'package:stackwallet/models/isar/models/blockchain_data/v2/input_v2.dart';
@ -36,7 +37,6 @@ mixin ElectrumXInterface<T extends Bip39HDCurrency> on Bip39HDWallet<T> {
int? get maximumFeerate => null;
int? _latestHeight;
StreamSubscription<dynamic>? _heightSubscription;
static const _kServerBatchCutoffVersion = [1, 6];
List<int>? _serverVersion;
@ -807,7 +807,8 @@ mixin ElectrumXInterface<T extends Bip39HDCurrency> on Bip39HDWallet<T> {
try {
// Don't set a stream subscription if one already exists.
if (_heightSubscription != null) {
if (ElectrumxChainHeightService.subscriptions[cryptoCurrency.coin] !=
null) {
if (_latestHeight != null) {
return _latestHeight!;
} else {
@ -824,7 +825,7 @@ mixin ElectrumXInterface<T extends Bip39HDCurrency> on Bip39HDWallet<T> {
subscribableElectrumXClient.subscribeToBlockHeaders();
// set stream subscription
_heightSubscription =
ElectrumxChainHeightService.subscriptions[cryptoCurrency.coin] =
subscription.responseStream.asBroadcastStream().listen((event) {
final response = event;
if (response != null &&