public async Task EvaluateAsync(string rScript)
{
VariableSubscription subscription = null;
// One eval at a time
await _sem.WaitAsync();
try {
_mre.Reset();
_globalEnv = null;
subscription = _variableProvider.Subscribe(0, "base::environment()", OnGlobalEnvironmentEvaluated);
using (var evaluation = await base.Session.BeginEvaluationAsync()) {
await evaluation.EvaluateAsync(rScript);
}
if (System.Diagnostics.Debugger.IsAttached)
{
_mre.Wait();
}
else
{
if (!_mre.Wait(TimeSpan.FromSeconds(10)))
{
throw new TimeoutException("Evaluate time out");
}
}
} finally {
_variableProvider.Unsubscribe(subscription);
_sem.Release();
}
}