internal static async Task MonitorResponseForMessagesAsync <T>(Task <HttpResponseMessage> responseTask, DockerClient client, CancellationToken cancel, IProgress <T> progress)
{
using (var response = await responseTask)
{
await client.HandleIfErrorResponseAsync(response.StatusCode, response);
using (var stream = await response.Content.ReadAsStreamAsync())
{
// ReadLineAsync must be cancelled by closing the whole stream.
using (cancel.Register(() => stream.Dispose()))
{
using (var reader = new StreamReader(stream, new UTF8Encoding(false)))
{
string line;
try
{
while ((line = await reader.ReadLineAsync()) != null)
{
var prog = client.JsonSerializer.DeserializeObject <T>(line);
if (prog == null)
{
continue;
}
progress.Report(prog);
}
}
catch (ObjectDisposedException)
{
// The subsequent call to reader.ReadLineAsync() after cancellation
// will fail because we disposed the stream. Just ignore here.
}
}
}
}
}
}