public static async Task <BlobFetchResult> FromCache(BlobFetchCache blobFetchCache)
{
var sw = Stopwatch.StartNew();
using var blob = await blobFetchCache.GetBlob();
if (blob == null)
{
return(null);
}
var source = new StreamSource(blob.OpenRead(), true);
var result = new BlobFetchResult()
{
streamSource = source,
blob = blob,
bytes = await source.GetBytesAsync(CancellationToken.None)
};
sw.Stop();
GlobalPerf.BlobRead(sw.ElapsedTicks, result.bytes.Count);
return(result);
}