private void Initialize()
{
if (RemoteSNTPServer == null)
{
RemoteSNTPServer = SNTPSettings.GetSNTPServer();
}
}
private static void SyncLocalTimeOffset()
{
double localOffset = 0;
while (true)
{
try
{
localOffset = GetLocalClockOffset();
_RWLocalOffsetLock.EnterWriteLock();
try
{
LocalOffsetSeconds = localOffset;
}
finally
{
_RWLocalOffsetLock.ExitWriteLock();
}
}
catch (System.Exception)
{
}
try
{
Thread.Sleep(SNTPSettings.GetConfigOrDefault().PoolInterval);
}
catch (System.Exception)
{
Thread.Sleep(60000);
}
}
}
/// <summary>
/// 获取配置信息。如果不存在，则返回默认的设置
/// </summary>
/// <returns></returns>
public static SNTPSettings GetConfigOrDefault()
{
SNTPSettings settings = SNTPSettings.GetConfig();
if (settings == null)
{
settings = new SNTPSettings();
}
return(settings);
}
/// <summary>
/// Creates a new instance of SNTPClient.
/// </summary>
public SNTPClient()
{
this.InitializeComponent();
this.Initialize();
this.ThreadStart = new WorkerThreadStartDelegate(WorkerThreadStart);
this.OperationCompleted = new SendOrPostCallback(AsyncOperationCompleted);
this.Timeout = SNTPSettings.GetConfigOrDefault().Timeout;
this.VersionNumber = DefaultVersionNumber;
this.UpdateLocalDateTime = false;
}
/// <summary>
/// 从配置信息中获取远程时间服务器的设置
/// </summary>
/// <returns></returns>
public static RemoteSNTPServer GetSNTPServer()
{
SNTPSettings settings = SNTPSettings.GetConfig();
RemoteSNTPServer server = RemoteSNTPServer.Default;
if (settings != null)
{
server = new RemoteSNTPServer(settings.ServerName, settings.Port);
}
return(server);
}
/// <summary>
///
/// </summary>
/// <param name="timeout"></param>
/// <returns></returns>
public static double GetLocalClockOffset(TimeSpan timeout)
{
return(GetLocalClockOffset(SNTPSettings.GetSNTPServer(), timeout));
}
/// <summary>
///
/// </summary>
/// <returns></returns>
public static double GetLocalClockOffset()
{
return(GetLocalClockOffset(SNTPSettings.GetConfigOrDefault().Timeout));
}
/// <summary>
/// Gets the real local date and time using the default server and the specified timeout.
/// If there is an error or exception, DateTime.MinValue is returned.
/// </summary>
/// <param name="timeout">The timeout in milliseconds used for sending and receiving.</param>
/// <returns>The real local date and time.</returns>
public static DateTime GetNow(TimeSpan timeout)
{
return(GetNow(SNTPSettings.GetSNTPServer(), timeout));
}
/// <summary>
/// Gets the real local date and time using the specified server and a total timeout of 1 second.
/// If there is an error or exception, DateTime.MinValue is returned.
/// </summary>
/// <param name="remoteSNTPServer">The server to use.</param>
/// <returns>The real local date and time.</returns>
public static DateTime GetNow(RemoteSNTPServer remoteSNTPServer)
{
return(GetNow(remoteSNTPServer, SNTPSettings.GetConfigOrDefault().Timeout));
}
/// <summary>
/// Gets the real local date and time using the default server and a total timeout of 1 second.
/// If there is an error or exception, DateTime.MinValue is returned.
/// </summary>
/// <returns>The real local date and time.</returns>
public static DateTime GetNow()
{
return(GetNow(SNTPSettings.GetSNTPServer(), SNTPSettings.GetConfigOrDefault().Timeout));
}
