/// <summary>
/// 文件发送/接收过程中被对方终止
/// </summary>
private void fileAborted()
{
sendTimeOutTimer.Stop();
if (filePacker != null)
{
filePacker.Close();
filePacker = null;
}
if (fileWriter != null)
{
fileWriter.Close();
fileWriter = null;
}
safeFileNameBase64 = null;
}
/// <summary>
/// 完成文件收发
/// </summary>
private void finishSendingOrReceivingFile()
{
// 关定时器
sendTimeOutTimer.Stop();
// 关文件
if (filePacker != null)
{
filePacker.Close();
filePacker = null;
}
if (fileWriter != null)
{
fileWriter.Close();
fileWriter = null;
}
ProtocalHandler protocalHandler = new ProtocalHandler();
owner.BeginInvoke(owner.stopSendingOrReceivingFileDelegate,
String.Format("文件{0}的收发已完成。",
protocalHandler.Base64stringToString(safeFileNameBase64)));
safeFileNameBase64 = null;
}
/// <summary>
/// 发起方：
/// 申请发送文件
/// </summary>
/// <param name="fileName">文件名（含路径）</param>
public void RequestToSendFile(string fileName)
{
// 打开文件
filePacker = new FilePacker(owner.fileName);
maxSeq = filePacker.GetPackNumbers();
owner.BeginInvoke(owner.setProgressDelegate, (int)maxSeq);
// 取得文件名，并将文件名编码以便使用
safeFileNameBase64 = owner.GetSafeFileName(fileName);
ProtocalHandler protocalHandler =
new ProtocalHandler(owner.targetName);
safeFileNameBase64 = protocalHandler.StringToBase64string(safeFileNameBase64);
// 封装协议文本
string protocalText = protocalHandler.Pack("file_requesttosend");
protocalText =
protocalHandler.Append(protocalText, "file", safeFileNameBase64);
protocalText =
protocalHandler.Append(protocalText, "maxseq", maxSeq.ToString());
try
{
// 发送
byte[] sendbuf = Encoding.ASCII.GetBytes(protocalText);
SocketAsyncEventArgs saEA = new SocketAsyncEventArgs();
saEA.Completed +=
new EventHandler <SocketAsyncEventArgs>(
SendCompletedDoNothing);
saEA.SetBuffer(sendbuf, 0, sendbuf.Length);
socket.SendAsync(saEA);
}
catch (Exception ex)
{
Trace.WriteLine("异常位置：RequestToSendFile");
Trace.WriteLine(ex.Message);
}
}