private static void HDAPIRefresh()
{
uint i, iDtuAmount;
string str = "";
StringBuilder mess = new StringBuilder(1000);
GPRS_USER_INFO user_info = new GPRS_USER_INFO();
str = str + 0x00 + 0x00 + 0x00;
iDtuAmount = HDDTUAPI.get_max_user_amount(); // 取最大数量, 为 3000
for (i = 0; i < iDtuAmount; i++)
{
HDDTUAPI.get_user_at(i, ref user_info);
if (user_info.m_status == 1) // 在线
{
// 判断 DTU 最后注册时间与现在时间的差值是否超过设置的超时时间
if ((DateTime.Now - HDDTUAPI.ConvertToDateTime(user_info.m_update_time)) > TimeSpan.FromMinutes(dtuTimeoutNum))
{
string dtuID = user_info.m_userid;
// 若超时则认为该 DTU 不在线, 调用开发包函数使其下线
HDDTUAPI.do_close_one_user2(dtuID, mess);
// 从缓存队列移除
DTUInfo dtuCache = DTUCacheManager.GetDTUInfo(dtuID);
if (dtuCache != null)
{
DTUCacheManager.OperDTUCache(DTUCacheManager.OPeratingType.Delete, dtuID, null);//DTUCacheManager.RemoveDtuCache(dtuID);
// 下线状态回填数据库
DBWorker.Append(DBCommand.CreateDtuOffline(dtuID));
}
else
{
TraceManager.AppendWarning("DTU:" + dtuID + "超时未注册,从缓存队列移除未发现该对象！");
}
continue;
}
}
}
}
public static DTUInfo ToDTUInfoForSoc(GPRS_USER_INFO gprsUserInfo)
{
try
{
DTUInfo dtuInfo = new DTUInfo();
dtuInfo.ID = gprsUserInfo.m_userid;
dtuInfo.IsUsed = 1;
dtuInfo.IsActive = 1;
dtuInfo.ActiveTime = DataUtil.ToDateString(gprsUserInfo.m_logon_date);
dtuInfo.LastRegisterTime = DataUtil.ToDateString(HDDTUAPI.ConvertToDateString(gprsUserInfo.m_update_time));
dtuInfo.TerminalIP = HDDTUAPI.inet_ntoa(HDDTUAPI.ntohl(gprsUserInfo.m_sin_addr));
dtuInfo.TerminalPort = gprsUserInfo.m_sin_port;
dtuInfo.GatewayIP = HDDTUAPI.inet_ntoa(HDDTUAPI.ntohl(gprsUserInfo.m_local_addr));
dtuInfo.GatewayPort = gprsUserInfo.m_local_port;
return(dtuInfo);
}
catch
{
}
return(null);
}
private static void Excute(GPRS_DATA_RECORD item)
{
switch (item.m_data_type)
{
case 0x01: // 注册包
GPRS_USER_INFO userInfo = new GPRS_USER_INFO();
if (HDDTUAPI.get_user_info(item.m_userid, ref userInfo) == 0)
{
DTUInfo sourceDTU = DTUInfo.ToDTUInfoForSoc(userInfo);
if (sourceDTU == null)
{
return;
}
DTUInfo targetDTU = DTUCacheManager.GetDTUInfo(item.m_userid);
if (targetDTU == null)
{
// 首次注册--在DBWorker从数据读取业务信息添加到缓存
DBWorker.Append(DBCommand.CreateDtuRegister(sourceDTU));
}
else
{
// 更新链路
DTUCacheManager.OperDTUCache(DTUCacheManager.OPeratingType.UpdateSocketInfo, targetDTU, sourceDTU);
}
}
break;
case 0x02: // 注销包
{
DTUCacheManager.OperDTUCache(DTUCacheManager.OPeratingType.Delete, item.m_userid, null);
}
break;
case 0x04: // 无效包
TraceManager.AppendInfo(item.m_userid + "---接收无效的数据包");
break;
case 0x05: // DTU已经接收到DSC发送的用户数据包
TraceManager.AppendInfo(item.m_userid + "---已经接收到DSC发送的用户数据包");
break;
case 0x09: // 数据包
{
//TraceManager.AppendInfo("DTU:" + item.m_userid + "接收了" +
// ByteUtil.BytesToText(item.m_data_buf, item.m_data_len)
// + "--共计" + item.m_data_len.ToString() + "个字节");
DTUInfo dtu = DTUCacheManager.GetDTUInfo(item.m_userid);
if (dtu == null)
{
return;
}
dtu.Analysis(item.m_data_buf, item.m_data_len);
}
break;
case 0x0d:
TraceManager.AppendInfo(item.m_userid + "---参数设置成功");
break;
case 0x0b:
TraceManager.AppendInfo(item.m_userid + "---参数查询成功");
// config.readconf();
break;
case 0x06:
TraceManager.AppendInfo("---断开PPP连接成功");
break;
case 0x07:
TraceManager.AppendInfo(item.m_userid + "---停止向DSC发送数据");
break;
case 0x08:
TraceManager.AppendInfo("---允许向DSC发送数据");
break;
case 0x0A:
TraceManager.AppendInfo("---丢弃用户数据");
break;
default:
break;
}
}
public static extern int get_user_at(uint index, ref GPRS_USER_INFO infoPtr);
public static extern int get_user_info(
[MarshalAs(UnmanagedType.LPStr)]
string userid,
ref GPRS_USER_INFO infoPtr);