public Task <HttpResponseMessage> Retry()
{
// If we send the same request again, then Mono (at least) will think it is already sent
// and somehow get confused with the old one that is already finished sending. This leads
// to blocking until the request finally times out. The same seems to apply if the content
// is the same as well
var initial = _request.Content == null?Task.FromResult <byte[]>(null) : _request.Content.ReadAsByteArrayAsync();
var newRequest = new HttpRequestMessage(_request.Method, _request.RequestUri);
return(initial.ContinueWith(t =>
{
if (t.Result != null)
{
newRequest.Content = new ByteArrayContent(t.Result);
foreach (var header in _request.Content.Headers)
{
newRequest.Content.Headers.TryAddWithoutValidation(header.Key, header.Value);
}
}
foreach (var header in _request.Headers)
{
newRequest.Headers.TryAddWithoutValidation(header.Key, header.Value);
}
foreach (var property in _request.Properties)
{
newRequest.Properties[property.Key] = property.Value;
}
newRequest.Version = _request.Version;
_request.Dispose();
_request = newRequest;
Log.To.Sync.V(Tag, "{0} returned {1} for the next delay ({2} attempts remaining)",
_strategy.GetType().Name, _strategy.NextDelay(false), _strategy.RetriesRemaining - 1);
return Task
.Delay(_strategy.NextDelay(true))
.ContinueWith(t1 => Send(newRequest, this))
.Unwrap();
}).Unwrap());
}
public TimeSpan GetSleepTime()
{
return(_retryStrategy.NextDelay(false));
}
