private async Task <(long chunks, long bytes)> StreamContentWithCompressionAsync(Stream targetStream, IAsyncStreamReader <CopyFileResponse> replyStream, CopyToOptions?options, CancellationToken ct)
{
long chunks = 0L;
long bytes = 0L;
using (var grpcStream = new BufferedReadStream(async() =>
{
if (await replyStream.MoveNext(ct))
{
chunks++;
bytes += replyStream.Current.Content.Length;
options?.UpdateTotalBytesCopied(bytes);
return(replyStream.Current.Content);
}
else
{
return(null);
}
}))
{
using (Stream decompressedStream = new GZipStream(grpcStream, CompressionMode.Decompress, true))
{
await decompressedStream.CopyToAsync(targetStream, _bufferSize, ct);
}
}
return(chunks, bytes);
}
private static async Task <CopyFileResult> CopyRandomToStreamAtSpeed(CancellationToken token, Stream stream, long totalBytes, double mbPerSec, CopyToOptions options)
{
var interval = TimeSpan.FromSeconds(0.1);
var copied = 0;
var bytesPerInterval = (int)BytesPerInterval(mbPerSec, interval);
Assert.True(bytesPerInterval > 0);
var buffer = new byte[bytesPerInterval];
while (!token.IsCancellationRequested)
{
var intervalTask = Task.Delay(interval);
Random.NextBytes(buffer);
await stream.WriteAsync(buffer, 0, bytesPerInterval);
copied += bytesPerInterval;
options.UpdateTotalBytesCopied(copied);
if (copied >= totalBytes)
{
break;
}
await intervalTask;
}
return(new CopyFileResult());
}
private async Task <(long chunks, long bytes)> StreamContentAsync(Stream targetStream, IAsyncStreamReader <CopyFileResponse> replyStream, CopyToOptions?options, CancellationToken ct)
{
long chunks = 0L;
long bytes = 0L;
while (await replyStream.MoveNext(ct))
{
chunks++;
CopyFileResponse reply = replyStream.Current;
bytes += reply.Content.Length;
reply.Content.WriteTo(targetStream);
options?.UpdateTotalBytesCopied(bytes);
}
return(chunks, bytes);
}