public async Task TestReadAsync()
{
using (var stream = new ProgressStream(new DummyNetworkStream(), Update)) {
var buffer = new byte[1024];
int expected = 517;
stream.Source.Write(buffer, 0, expected);
stream.Source.Position = 0;
progress = 0;
int n = await stream.ReadAsync(buffer, 0, buffer.Length);
Assert.AreEqual(expected, n, "nread");
Assert.AreEqual(expected, progress, "progress");
}
}
internal static async Task WriteToRequestAsync(HttpWebRequest request, ProgressStream progressStream)
{
log.Info("Writing data to request asynchronously.");
if (progressStream == null)
{
return;
}
try
{
log.Info("Reporting progress requested.");
long length = progressStream.Length;
var cancellationToken = new CancellationToken();
var buffer = new byte[CHUNK_SIZE];
using (var requestStream = await request.GetRequestStreamAsync().ConfigureAwait(false))
{
progressStream.Position = 0;
int read = 0;
for (int i = 0; i < length; i += read)
{
read = await progressStream.ReadAsync(buffer, 0, CHUNK_SIZE, cancellationToken).ConfigureAwait(false);
await requestStream.WriteAsync(buffer, 0, read, cancellationToken).ConfigureAwait(false);
await requestStream.FlushAsync(cancellationToken).ConfigureAwait(false); // flushing is required or else we jump to 100% very fast
progressStream.Position += read;
}
}
}
catch (WebException ex)
{
HandleWebException(ex);
}
}