コード例 #1
0
        public static void DownloadFile(string destFileName, Stream responseStream, CancellationToken?token = null, Action <int> indicateProgress = null)
        {
            using (new ProfileSection("Download file", typeof(WebRequestHelper)))
            {
                ProfileSection.Argument("destFileName", destFileName);
                ProfileSection.Argument("responseStream", responseStream);
                ProfileSection.Argument("token", token);
                ProfileSection.Argument("indicateProgress", indicateProgress);

                int bufferSize = Settings.CoreWebDownloadBufferSize.Value;
                using (var fileStream = new FileStream(destFileName, FileMode.Create, FileAccess.Write, FileShare.Read, bufferSize))
                {
                    var buffer = new byte[bufferSize];
                    while (true)
                    {
                        if (token != null)
                        {
                            ((CancellationToken)token).ThrowIfCancellationRequested();
                        }

                        int count = responseStream.Read(buffer, 0, bufferSize);

                        if (count == 0)
                        {
                            break;
                        }

                        fileStream.Write(buffer, 0, count);
                        if (indicateProgress != null)
                        {
                            indicateProgress(count);
                        }
                    }
                }
            }
        }