protected override async Task <long> ReadStreamInternal(Stream stream, long?length)
{
await Task.CompletedTask.ConfigureAwait(false);
if (ReadOnly)
{
throw new NotSupportedException();
}
Stream.Position = 0;
using (var skip = new SkipableStream(Stream, 0))
{
long readed;
try
{
readed = skip.ReadFromStream(stream, length);
}
catch (IOException)
{
WebServerLog.Add(ServerLogType.Information, GetType(), "Send", "Connection closed by remote Host");
readed = Stream.Position;
}
Stream.SetLength(readed);
return(readed);
}
}
protected override async Task <long> WriteStreamInternal(Stream stream, long start, long?stop)
{
using (var skip = new SkipableStream(stream, start))
{
long total = 0;
foreach (var s in GetAllSources())
{
if (stop != null && total >= stop.Value)
{
return(total);
}
var end = stop == null ? null : (long?)(stop.Value - total);
var size = s.Length();
if (size == null)
{
total += await s.WriteStream(skip, 0, end).ConfigureAwait(false);
}
else
{
if (size.Value < skip.SkipBytes)
{
skip.Skip(size.Value);
continue;
}
var leftSkip = skip.SkipBytes;
skip.Skip(skip.SkipBytes);
total += await s.WriteStream(skip, leftSkip, end).ConfigureAwait(false);
}
}
return(total);
}
}
protected override async Task <long> WriteStreamInternal(Stream stream, long start, long?stop)
{
await Task.CompletedTask;
Stream.Position = start;
using (var skip = new SkipableStream(Stream, 0))
{
try
{
return(skip.WriteToStream(stream,
stop == null ? null : (long?)(stop.Value - start)));
}
catch (IOException)
{
WebServerLog.Add(ServerLogType.Information, GetType(), "Send", "Connection closed by remote Host");
return(Stream.Position - start);
}
}
}
