public async Task WriteToStreamAsync(Stream stream, CancellationToken cancellationToken)
{
await FileEdit.UpdateFileStartedAsync(FileEntry);
long position = 0;
try
{
while (position < FileEntry.Size)
{
cancellationToken.ThrowIfCancellationRequested();
var length = Math.Min(maxMessageSize, FileEntry.Size - position);
var base64 = await JSRunner.ReadDataAsync(ElementRef, FileEntry.Id, position, length, cancellationToken);
var buffer = Convert.FromBase64String(base64);
if (length != buffer.Length)
{
throw new InvalidOperationException($"Requested a maximum of {length}, but received {buffer.Length}");
}
cancellationToken.ThrowIfCancellationRequested();
await stream.WriteAsync(buffer, cancellationToken);
position += buffer.Length;
// notify of all the changes
await Task.WhenAll(
FileEdit.UpdateFileWrittenAsync(FileEntry, position, buffer),
FileEdit.UpdateFileProgressAsync(FileEntry, buffer.Length));
}
}
catch
{
throw;
}
finally
{
await FileEdit.UpdateFileEndedAsync(FileEntry, position == FileEntry.Size);
}
}
