/// <summary>将一个待处理的机号存入缓存队列中,并返回队列中的数量
///
/// </summary>
/// <returns></returns>
public static int SetVin(string vin, out string err)
{
if (sns.Contains(vin))
{
err = "机号" + vin + "已在缓存队列中存在";
return(sns.Count);
}
sns.Enqueue(vin);
CacheJHCountChanged?.Invoke();
err = "";
return(sns.Count);
}
/// <summary>尝试从缓冲队列中取出一个有效的机号信息,否则返回null
///
/// </summary>
/// <returns></returns>
public static VinMsg GetVin()
{
//var sw = System.Diagnostics.Stopwatch.StartNew();
while (sns.Count > 0)
{
//System.Diagnostics.Trace.WriteLine(sw.ElapsedMilliseconds.ToString());
VinMsg vinmsg = VinMsg.Create(sns.Dequeue(), out string err);
CacheJHCountChanged?.Invoke();
//System.Diagnostics.Trace.WriteLine(sw.ElapsedMilliseconds.ToString());
if (err == "")
{
return(vinmsg);
}
}
//System.Diagnostics.Trace.WriteLine(sw.ElapsedMilliseconds.ToString());
return(null);
}
/// <summary>清除所有缓存的机号和当前正在操作的机号
///
/// </summary>
/// <returns></returns>
public static void ClearAll()
{
sns.Clear();
CacheJHCountChanged?.Invoke();
}