public CloseWindow(Form f)
{
InitializeComponent();
ClosePage closePage = new ClosePage(f);
closePage.OnClosed += ClosePage_OnClosed;;
CloseFrame.Navigate(closePage);
DataContext = Settings.Instance.Resources;
}
/// <summary>
/// 从流中读取数据并保存到远端文件中。
/// </summary>
/// <exception cref="Exception"></exception>
/// <returns></returns>
public async Task ToStreamAsync(Stream stream, string file)
{
if (!Started)
{
Started = true;
Size = stream.Length;
//发送请求
OpenFrame frame = new OpenFrame()
{
FileName = file,
FileSize = stream.Length,
ReadOnly = false,
};
base.GuidFilter = frame.Guid;
await Send(frame).ConfigureAwait(false);
//等待结果
switch (await base.Answers.WaitAsync(Common.Configs.FrameTimeout).ConfigureAwait(false))
{
case OpenAnswerFrame answerFrame: break;
case ErrorFrame errorFrame: throw new RemoteErrorException(errorFrame);
default: throw new InvalidDataException();
}
//发送数据
bool terminated = false;
try
{
const int sizeMax = 1024 * 128 < Configs.MaxFrameSize ? 1024 * 128 : Configs.MaxFrameSize;
const int sizeMin = 1024 < Configs.MaxFrameSize ? 1024 : Configs.MaxFrameSize;
int size = sizeMin;
byte[] buffer = new byte[sizeMax];
while (stream.Position != stream.Length)
{
long position = stream.Position;
int count = await stream.ReadAsync(buffer, 0, size).ConfigureAwait(false);
DataFrame dataFrame = new DataFrame(frame.Guid)
{
FileSize = stream.Length,
DataOffset = position,
Data = buffer.Take(count).ToArray(),
};
await Send(dataFrame).ConfigureAwait(false);
TransferedSize += count;
Recorder.Record(TransferedSize);
size = Math.Max(sizeMin, Math.Min(sizeMax, Common.Tools.SpeedRecorder.UpdateFrameSize((int)Recorder.SpeedPerSecond, size)));
}
}
catch (Exception ex)
{
terminated = true;
}
//结束请求
CloseFrame writeCloseFrame = new CloseFrame(frame.Guid);
await Send(writeCloseFrame).ConfigureAwait(false);
//等待结果
switch (await base.Answers.WaitAsync().ConfigureAwait(false))
{
case CloseAnswerFrame answerFrame: break;
case ErrorFrame errorFrame: throw new RemoteErrorException(errorFrame);
default: throw new InvalidDataException();
}
if (terminated)
{
throw new IOException();
}
Finished = true;
}
}
