/// <summary>
/// 获取用于在数据表信息中显示的键值数据对信息
/// </summary>
/// <returns>键值数据对列表</returns>
public override List <NodeClassRenderItem> GetNodeClassRenders( )
{
var list = base.GetNodeClassRenders( );
list.Add(NodeClassRenderItem.CreateIpAddress(IpAddress));
list.Add(NodeClassRenderItem.CreateIpPort(Port));
list.Add(new NodeClassRenderItem("网络号", NetworkNumber.ToString( )));
list.Add(new NodeClassRenderItem("网络站号", NetworkStationNumber.ToString( )));
list.Add(new NodeClassRenderItem("是否二进制", IsBinary.ToString( )));
return(list);
}
public byte[] ToDosFormat()
{
var bytes = new List <byte>();
bytes.AddRange(DateTime.ToBytes(26));
bytes.AddRange(Signature.ToBytes(4));
bytes.AddRange(PanelNumber.ToBytes());
bytes.AddRange(NetworkNumber.ToBytes());
bytes.AddRange(Version.ToBytes());
bytes.AddRange(MiniVersion.ToBytes());
bytes.AddRange(Reserved);
var offset = bytes.Count;
for (var i = PointType.OUT; i <= PointType.UNIT; ++i)
{
if (i == PointType.TZ)
{
continue;
}
if (i == PointType.AMON)
{
if (Version >= 230 && MiniVersion > 0)
{
continue;
}
}
if (i == PointType.ALARMM)
{
if (Version < 216)
{
var size = RawData.ToUInt16(offset);
offset += 2;
bytes.AddRange(size.ToBytes());
var count = RawData.ToUInt16(offset);
offset += 2;
bytes.AddRange(count.ToBytes());
for (var j = 0; j < count; ++j)
{
var data = RawData.ToBytes(offset, size);
offset += size;
bytes.AddRange(data);
}
continue;
}
}
else
{
var count = RawData.ToUInt16(offset);
offset += 2;
bytes.AddRange(count.ToBytes());
var size = RawData.ToUInt16(offset);
offset += 2;
bytes.AddRange(size.ToBytes());
for (var j = 0; j < count; ++j)
{
var data = RawData.ToBytes(offset, size);
offset += size;
switch (i)
{
case PointType.VAR:
bytes.AddRange(Variables[j].ToBytes());
break;
case PointType.UNIT:
bytes.AddRange(CustomUnits.Digital[j].ToBytes());
break;
default:
bytes.AddRange(data);
break;
}
}
}
}
//Append raw data from file.
bytes.AddRange(RawData.ToBytes(bytes.Count, RawData.Length - bytes.Count));
return(bytes.ToArray());
}
/// <summary>
/// 尝试搜寻目前局域网内的所有设备。
/// </summary>
/// <exception cref="TimeoutException">等待线程结束超时。</exception>
public void ScanForTarget()
{
// 获取当前设备
var device = DeviceList[CurDevName];
// 创建分析线程
const int analyzeThreadsCount = 4;
var analyzeThreads = new Thread[analyzeThreadsCount];
for (var i = 0; i < analyzeThreadsCount; i++)
{
analyzeThreads[i] = new Thread(ScanPacketAnalyzeThread);
}
// 创建发包线程队列
var sendThreads = new List <Thread>();
try {
// arp头起始位置向后偏移6字节后，取2字节内容即为arp包类型
device = StartCapture("arp [6:2] = 2");
// 启动分析线程
for (var i = 0; i < analyzeThreadsCount; i++)
{
analyzeThreads[i].Start();
}
// 去除网络号和广播地址，产生地址集合
byte[] minAddress = NetworkNumber.GetAddressBytes(),
maxAddress = BroadcastAddress.GetAddressBytes(),
tempAddress = minAddress;
var ipAddresses = new List <IPAddress>();
tempAddress[3]++;
while (!(tempAddress[0] == maxAddress[0] &&
tempAddress[1] == maxAddress[1] &&
tempAddress[2] == maxAddress[2] &&
tempAddress[3] == maxAddress[3]))
{
ipAddresses.Add(new IPAddress(tempAddress));
if (ipAddresses.Count >= (AddressCount / 8 >= 254 ? 254 : AddressCount / 8))
{
// 创建发包线程
var sendThread = new Thread(ScanPacketSendThread);
sendThread.Start(ipAddresses);
sendThreads.Add(sendThread);
ipAddresses = new List <IPAddress>();
}
var i = 3;
while (i >= 0 && tempAddress[i] == 255)
{
tempAddress[i] = 0;
i--;
}
tempAddress[i]++;
}
// 最后一个发送线程
var lastSendThread = new Thread(ScanPacketSendThread);
lastSendThread.Start(ipAddresses);
sendThreads.Add(lastSendThread);
// 等待数据包发送完成
new WaitTimeoutChecker((int)(60 * 1000 * Math.Log(AddressCount, 254))).ThreadSleep(500, () => sendThreads.Any(item => item.IsAlive));
// 等待接收目标机反馈消息
Thread.Sleep((int)(8 * 1000 * Math.Log(AddressCount, 254)));
}
finally {
// 终止发包线程
foreach (var sendThread in sendThreads)
{
if (sendThread.IsAlive)
{
sendThread.Abort();
}
}
// 终止分析线程
foreach (var analyzeThread in analyzeThreads)
{
if (analyzeThread.IsAlive)
{
analyzeThread.Abort();
}
}
// 清理缓冲区及其他内容
lock (_hostList) {
_hostList.Sort(Host.SortMethod);
}
StopCapture(device);
ClearCaptures();
}
}
