/// <summary>
/// 上传升级文件到设备
/// </summary>
/// <param name="destid"></param>
/// <param name="data"></param>
/// <returns></returns>
public static byte[] UpGradeFile(byte destid, WriteFile.Parameter para)
{
byte[] donedata;
byte[] tempdata = GetData(para, (int)FileType.UpGradeFile);
PrepareData.Msg_Bus _frame = new PrepareData.Msg_Bus();
_frame.flag = PrepareData.BUS_FRAME_FLAG;
_frame.srcID = MSGEncoding.srcID;
_frame.destID = destid;
_frame.msgDir = (byte)MSGEncoding.MsgDir.Request;
_frame.msgVer = MSGEncoding.msgVer;
_frame.msgType = (byte)MSGEncoding.MsgType.WriteFile;
_frame.msgSubType = (byte)MSGEncoding.WriteFile.UpGradeFile;
_frame.dataLen = (ushort)tempdata.Length;
donedata = PrepareData.MergeMsg(ref _frame, tempdata);
return(donedata);
}
/// <summary>
/// 上传数据文件到设备
/// </summary>
/// <param name="destid"></param>
/// <param name="data"></param>
/// <returns></returns>
public static byte[] UpcfgToDev(byte destid, WriteFile.Parameter para)
{
byte[] donedata;
//由于结构体中普通文件和升级文件的名字都会给出，通过getdata的第二参数标定，为0为普通文件（数据和配置）
//不再讨论文件类别，只给出编号，相应的文件以包装进类中
//恢复文件类型标准，由于para和fileitem死循环产生
byte[] tempdata = GetData(para, (int)FileType.CfgOrDataFile);
PrepareData.Msg_Bus _frame = new PrepareData.Msg_Bus();
_frame.flag = PrepareData.BUS_FRAME_FLAG;
_frame.srcID = MSGEncoding.srcID;
_frame.destID = destid;
_frame.msgDir = (byte)MSGEncoding.MsgDir.Request;
_frame.msgVer = MSGEncoding.msgVer;
_frame.msgType = (byte)MSGEncoding.MsgType.WriteFile;
_frame.msgSubType = (byte)MSGEncoding.WriteFile.UpcfgToDev;
_frame.dataLen = (ushort)tempdata.Length;
donedata = PrepareData.MergeMsg(ref _frame, tempdata);
return(donedata);
}
/// <summary>
/// 获取数据域,依赖于上次读到的总和为文件开始读取位置，如果读取到数据则说明未读完，继续组文件发送包
/// 如果读到字节数为0，那么说明读取完毕，将本次读到的字节数ref返回，在外判断循环组包结束
/// </summary>
/// <returns></returns>
public static byte[] GetData(WriteFile.Parameter para, int type)
{
byte[] ret;
//读请求个数的字节
byte[] filedata = new byte[para.writebytes];
//这里读完到之后指针已偏移，默认指定读到的数据能全部发送
para.filehandle.Seek(para.start, SeekOrigin.Begin);
ushort writedown = (ushort)para.filehandle.Read(filedata, 0, para.writebytes);
//((FileItem)filepool[para.packetnum]).FileIndex += writedown;
if (0 != writedown)
{
if ((int)FileType.UpGradeFile == type)
{
ret = new byte[writedown + upgradelen];
Array.Copy(para.upgradefilename, ret, upgradelen);
Array.Copy(filedata, 0, ret, upgradelen, writedown);
}
else
{
ret = new byte[writedown + datacfglen];
byte[] temp = ByteStruct.StructToBytes(para.filename);
Array.Copy(temp, ret, datacfglen);
Array.Copy(filedata, 0, ret, datacfglen, writedown);
}
}
//当读到0个字节，即已经读到文件结尾的时候，直接返回文件名，为结束帧
else
{
if (1 == type)
{
ret = para.upgradefilename;
}
else
{
ret = ByteStruct.StructToBytes(para.filename);
}
}
return(ret);
}
