/// <summary> /// 判断包类型,这是个辅助方法 /// </summary> /// <param name="buffer"></param> /// <param name="offset"></param> /// <param name="count"></param> /// <param name="type"></param> /// <param name="isPackage"></param> /// <returns></returns> internal static bool AssertPackageType(byte[] buffer, int offset, int count, SmPackageType type, bool isPackage) { if (!isPackage) { if (!AsserIsPackage(buffer, offset, count)) { return(false); } } byte cmdFrame = buffer[SmTool.GetSocketIndex(SmIndex.Cmd, offset)]; return(cmdFrame == (byte)type); }
/// <summary> /// 所有包都能提取的信息 /// </summary> /// <param name="buffer"></param> /// <param name="offset"></param> /// <param name="type"></param> /// <returns></returns> private SmModel processPackage(byte[] buffer, int offset, SmPackageType type) { List <byte> byList = buffer.ToList(); byList = byList.GetRange(offset, byList.Count); var emSocket = new SmModel(type); //解码 emSocket.ModuleAddr = byList.GetRange(SmTool.GetSocketIndex(SmIndex.MachineAddrStart), (int)SmIndex.MacineAddrCount); emSocket.Cmd = byList[SmTool.GetSocketIndex(SmIndex.Cmd)]; emSocket.AimType = byList[SmTool.GetSocketIndex(SmIndex.AimType)]; emSocket.Buffer = buffer; return(emSocket); }
/// <summary> /// 缓存数据==>可用的包 /// 对ProcessBuffer函数进行了极大的优化 /// 目前效率 250次循环 61ms 50个单元单元测试包 /// </summary> /// <param name="buffer"></param> /// <param name="offset"></param> /// <param name="count"></param> /// <returns></returns> private Dictionary <SmPackageType, List <byte[]> > processBuffer2(byte[] buffer, int offset, int count) { //解密 buffer = SmEncrypt.DecodeArray(buffer, offset, count); Dictionary <SmPackageType, List <byte[]> > packageDictionary = new Dictionary <SmPackageType, List <byte[]> >(); try { //fixed: 2018-01-04 // 某些机台这里会抛异常 socketBuffer.WriteBuffer(buffer, offset, count); } catch (Exception e) { //Console.WriteLine("DynamicBuffer WriteBuffer 异常" + e.Message); Logger.Error($"DynamicBuffer WriteBuffer 异常: DataCount: {socketBuffer.GetDataCount()},BufferSize: {socketBuffer.BufferSize}", e); //清空缓存 socketBuffer.Clear(); } List <byte[]> normalPackages = new List <byte[]>(); List <byte[]> heartbeatPackages = new List <byte[]>(); List <byte[]> clientReplyCmdPackages = new List <byte[]>(); SmPackageType smPackageType = SmPackageType.ErrorPackage; int startFrameCount = 0; for (int i = offset; i < offset + socketBuffer.GetDataCount(); ++i) { //检验帧头 if (socketBuffer[i] == (byte)SmFrame.Start) { ++startFrameCount; //找到长度帧 byte[] datalenBytes = { socketBuffer[i + (int)SmIndex.TotalLenStart], socketBuffer[(int)SmIndex.TotalLenStart + 1 + i] }; datalenBytes = datalenBytes.Reverse().ToArray(); //数据长度(该位后面(不包括结束符,CRC)的长度) Int16 propLen = BitConverter.ToInt16(datalenBytes, 0); //整个包长度 int packageLen = +(int)SmIndex.TotalLenStart + (int)SmIndex.TotalLenCount + propLen + 3; int index = i + packageLen - 1; //加上长度是否为结束帧 if (propLen > 0 && index < socketBuffer.GetDataCount() && socketBuffer[index] == (byte)SmFrame.End) { //获取包类型 smPackageType = SmPackage.GetPackageType(socketBuffer.Buffer, i, packageLen); if (smPackageType != SmPackageType.ErrorPackage) { byte[] bytes = copyPackageAndClearOrigin2(ref i, packageLen); if (smPackageType == SmPackageType.ParamPackage) { normalPackages.Add(bytes); } else if (smPackageType == SmPackageType.HeartbeatPackage) { heartbeatPackages.Add(bytes); } else if (smPackageType == SmPackageType.ClientReplyCmd) { clientReplyCmdPackages.Add(bytes); } } } else { ////缓存中出现了超过1000个字节 ////全删掉 if (startFrameCount >= 1000) { //socketBuffer.Clear(0, i); Console.WriteLine("缓存中超过1000个坏包"); } } } } //存包 packageDictionary[SmPackageType.ParamPackage] = normalPackages; packageDictionary[SmPackageType.HeartbeatPackage] = heartbeatPackages; packageDictionary[SmPackageType.ClientReplyCmd] = clientReplyCmdPackages; return(packageDictionary); }
public SmModel(SmPackageType type) { this.PackageType = type; }