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Improved socket reconnect logic so unsubscribing while processing resubscribing won't result in a ghost subscription

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This commit is contained in:
JKorf 2024-07-23 12:01:31 +02:00
parent 3cd505ac8b
commit 3b735d66fd
1 changed files with 21 additions and 18 deletions
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39
CryptoExchange.Net/Sockets/SocketConnection.cs
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@ -854,31 +854,32 @@ namespace CryptoExchange.Net.Sockets
_logger.AuthenticationSucceeded(SocketId);
}
// Get a list of all subscriptions on the socket
List<Subscription> subList;
lock (_listenersLock)
subList = _listeners.OfType<Subscription>().ToList();
foreach(var subscription in subList)
{
subscription.ConnectionInvocations = 0;
var result = await ApiClient.RevitalizeRequestAsync(subscription).ConfigureAwait(false);
if (!result)
{
_logger.FailedRequestRevitalization(SocketId, result.Error?.ToString());
return result;
}
}
// Foreach subscription which is subscribed by a subscription request we will need to resend that request to resubscribe
for (var i = 0; i < subList.Count; i += ApiClient.ClientOptions.MaxConcurrentResubscriptionsPerSocket)
int batch = 0;
int batchSize = ApiClient.ClientOptions.MaxConcurrentResubscriptionsPerSocket;
while (true)
{
if (!_socket.IsOpen)
return new CallResult(new WebError("Socket not connected"));
List<Subscription> subList;
lock (_listenersLock)
subList = _listeners.OfType<Subscription>().Skip(batch * batchSize).Take(batchSize).ToList();
if (subList.Count == 0)
break;
var taskList = new List<Task<CallResult>>();
foreach (var subscription in subList.Skip(i).Take(ApiClient.ClientOptions.MaxConcurrentResubscriptionsPerSocket))
foreach (var subscription in subList)
{
subscription.ConnectionInvocations = 0;
var result = await ApiClient.RevitalizeRequestAsync(subscription).ConfigureAwait(false);
if (!result)
{
_logger.FailedRequestRevitalization(SocketId, result.Error?.ToString());
return result;
}
var subQuery = subscription.GetSubQuery(this);
if (subQuery == null)
continue;
@ -897,6 +898,8 @@ namespace CryptoExchange.Net.Sockets
await Task.WhenAll(taskList).ConfigureAwait(false);
if (taskList.Any(t => !t.Result.Success))
return taskList.First(t => !t.Result.Success).Result;
batch++;
}
if (!_socket.IsOpen)