// wait for read to complete, then continue async
static async ValueTask <(HeaderEnumerator Headers, bool IsHeader, Memory <char> PushBack)> ReadAsync_ContinueAfterReadAsync(HeadersReader <T> self, ValueTask <int> waitFor, CancellationToken cancel)
{
var available = await waitFor;
// handle the in flight task
if (available == 0)
{
if (self.BuilderBacking.Length > 0)
{
self.PushPendingCharactersToValue();
}
return(self.IsHeaderResult());
}
else
{
self.AddToPushback(self.Buffer.Buffer.Span.Slice(0, available));
}
if (self.AdvanceWork(available))
{
return(self.IsHeaderResult());
}
// go back into the loop
while (true)
{
available = await self.Buffer.ReadAsync(self.Inner, cancel);
if (available == 0)
{
if (self.BuilderBacking.Length > 0)
{
self.PushPendingCharactersToValue();
}
break;
}
else
{
self.AddToPushback(self.Buffer.Buffer.Span.Slice(0, available));
}
if (self.AdvanceWork(available))
{
break;
}
}
return(self.IsHeaderResult());
}
// wait for read to complete, then continue async
static async ValueTask <(HeaderEnumerator Headers, bool IsHeader, Memory <char> PushBack)> ReadAsync_ContinueAfterReadAsync(
HeadersReader <T> self,
ValueTask <int> waitFor,
CancellationToken cancellationToken)
{
bool madeProgress;
int available;
{
available = await ConfigureCancellableAwait(self, waitFor, cancellationToken);
}
// handle the in flight task
if (available == 0)
{
if (self.BuilderBacking.Length > 0)
{
var inEscapedValue = ReaderStateMachine.IsInEscapedValue(self.StateMachine.CurrentState);
self.PushPendingCharactersToValue(inEscapedValue);
}
return(self.IsHeaderResult());
}
else
{
self.AddToPushback(self.Buffer.Buffer.Span.Slice(0, available));
}
if (self.AdvanceWork(available, out madeProgress))
{
return(self.IsHeaderResult());
}
// go back into the loop
while (true)
{
var readTask = self.Buffer.ReadAsync(self.InnerAsync.Value, madeProgress, cancellationToken);
{
available = await ConfigureCancellableAwait(self, readTask, cancellationToken);
}
if (available == 0)
{
if (self.BuilderBacking.Length > 0)
{
var inEscapedValue = ReaderStateMachine.IsInEscapedValue(self.StateMachine.CurrentState);
self.PushPendingCharactersToValue(inEscapedValue);
}
break;
}
else
{
self.AddToPushback(self.Buffer.Buffer.Span.Slice(0, available));
}
if (self.AdvanceWork(available, out madeProgress))
{
break;
}
}
return(self.IsHeaderResult());
}
