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Corrected Cancellation Source for KeepAlive Messages (#2129)

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* Corrected Cancellation Source for KeepAlive Messages

* Use half of the keep alive value for the ping timeout

* Update release notes

* Update ReleaseNotes.md

* Update ReleaseNotes.md

* Update ReleaseNotes.md

---------

Co-authored-by: christian <6939810+chkr1011@users.noreply.github.com>
This commit is contained in:
Lucas T
2025-01-02 12:17:05 +01:00
committed by GitHub
co-authored by christian
parent 1cdc343e6d
commit 948c7c2b69
2 changed files with 8 additions and 5 deletions
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Source/MQTTnet/MqttClient.cs
+7 -5
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@@ -1041,11 +1041,13 @@ public sealed class MqttClient : Disposable, IMqttClient
if (timeWithoutPacketSent > keepAlivePeriod)
{
using (var timeoutCancellationTokenSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken))
{
timeoutCancellationTokenSource.CancelAfter(Options.Timeout);
await PingAsync(timeoutCancellationTokenSource.Token).ConfigureAwait(false);
}
using var pingTimeout = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken);
// We already reached the keep alive timeout. Due to the RFC part [MQTT-3.1.2-24] the server will wait another
// 1/2 of the keep alive time. So we can also use this value as the timeout.
pingTimeout.CancelAfter(keepAlivePeriod / 2);
await PingAsync(pingTimeout.Token).ConfigureAwait(false);
}
// Wait a fixed time in all cases. Calculation of the remaining time is complicated