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Merge pull request #24 from MB512/fix/deadlock

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Fix deadlock on connection lost
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DarthAffe 2021-11-03 23:35:10 +01:00 committed by GitHub
commit 1419ed7755
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1 changed files with 14 additions and 2 deletions
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16
OBD.NET/OBD.NET.Common/Devices/SerialDevice.cs
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@ -217,11 +217,23 @@ namespace OBD.NET.Common.Devices
else
Connection.Write(Encoding.ASCII.GetBytes(CurrentCommand.CommandText));
//wait for command to finish
_commandFinishedEvent.WaitOne();
//wait for command to finish or command canceled
while (!(_commandFinishedEvent.WaitOne(50) || _commandCancellationToken.IsCancellationRequested))
{
}
}
}
catch (OperationCanceledException) { /*ignore, because it is thrown when the cancellation token is canceled*/}
// if canceled set all commands as completed (with null result)
if (_commandCancellationToken.IsCancellationRequested)
{
CurrentCommand?.CommandResult.WaitHandle.Set();
foreach (var cmd in _commandQueue)
{
cmd.CommandResult.WaitHandle.Set();
}
}
}
}