public void TrySetException() {
var tcs = new TaskCompletionSourceEx<int>();
var count = 0;
ParallelTools.Invoke(8, i => {
var isSet = tcs.TrySetException(new Exception());
if (isSet) {
Interlocked.Increment(ref count);
}
});
count.Should().Be(1);
}
private static async Task RunHost(RHost host, TaskCompletionSourceEx <object> hostStartedTcs, CancellationToken initializationCt)
{
try {
await host.Run(initializationCt);
} catch (OperationCanceledException oce) {
hostStartedTcs.TrySetCanceled(oce);
} catch (MessageTransportException mte) {
hostStartedTcs.TrySetCanceled(new RHostDisconnectedException(string.Empty, mte));
} catch (Exception ex) {
hostStartedTcs.TrySetException(ex);
} finally {
// RHost.Run shouldn't be completed before `IRCallback.Connected` is called
hostStartedTcs.TrySetCanceled(new RHostDisconnectedException(Resources.Error_UnknownError));
}
}
public void TrySetException()
{
var tcs = new TaskCompletionSourceEx <int>();
var count = 0;
ParallelTools.Invoke(8, i => {
var isSet = tcs.TrySetException(new Exception());
if (isSet)
{
Interlocked.Increment(ref count);
}
});
count.Should().Be(1);
}
private async Task CreateAndRunHost(RHostStartupInfo startupInfo, int timeout)
{
try {
_host = await BrokerConnector.ConnectAsync(startupInfo.Name, this, startupInfo.RHostCommandLineArguments, timeout);
await _host.Run();
} catch (OperationCanceledException oce) {
_initializationTcs.TrySetCanceled(oce);
} catch (MessageTransportException mte) {
_initializationTcs.TrySetCanceled(new RHostDisconnectedException(string.Empty, mte));
} catch (Exception ex) {
_initializationTcs.TrySetException(ex);
} finally {
Interlocked.Exchange(ref _initializationTcs, null);
}
}
private void SetException(object state) => _tcs.TrySetException((Exception)state);