/// <summary>
/// 添加用户长连接轮询验证
/// </summary>
/// <param name="userId"></param>
/// <returns></returns>
public string Add(int userId)
{
sessionTimeout value;
if (!sessions.TryGetValue(userId, out value))
{
sessionId sessionId = default(sessionId);
sessionId.New();
Monitor.Enter(sessionLock);
try
{
if (!sessions.ContainsKey(userId))
{
sessions.Add(userId, value = new sessionTimeout {
SessionId = sessionId, Timeout = date.NowSecond.AddTicks(timeoutTicks)
});
}
}
finally { Monitor.Exit(sessionLock); }
}
return(value.SessionId.ToHexString());
}
/// <summary>
/// 获取用户长连接轮询验证
/// </summary>
/// <param name="userId">用户标识</param>
/// <param name="sessionId">长连接轮询验证,0表示失败</param>
public void Get(int userId, ref sessionId sessionId)
{
sessionTimeout value;
if (sessions.TryGetValue(userId, out value))
{
if (value.Timeout > date.NowSecond)
{
sessionId = value.SessionId;
return;
}
sessionId.New();
Monitor.Enter(sessionLock);
try
{
sessions[userId] = new sessionTimeout {
SessionId = sessionId, Timeout = date.NowSecond.AddTicks(timeoutTicks)
};
}
finally { Monitor.Exit(sessionLock); }
return;
}
sessionId.Null();
}
/// <summary>
/// 新建会话标识
/// </summary>
/// <param name="timeout"></param>
/// <returns></returns>
public sessionId New(DateTime timeout)
{
SessionId.New();
Timeout = timeout;
return(SessionId);
}