/// <summary>
/// 文件上传
/// </summary>
/// <param name="rcvBytes"></param>
/// <param name="rspBytes"></param>
/// <returns></returns>
private bool FileUpload(byte[] rcvBytes, out byte[] rspBytes)
{
rspBytes = null;
byte childcode = rcvBytes[2];
byte datalen = rcvBytes[3];
byte filetype = rcvBytes[4];
//判断长度
if (rcvBytes.Length != datalen + 6)
{
return(false);
}
//启动加载
if (childcode == 0x05)
{
if (!mFiles.ContainsKey(filetype))
{
rspBytes = new byte[3];
rspBytes[0] = rcvBytes[0];
rspBytes[1] = 0xC1;
rspBytes[2] = 0x08;
return(true);
}
FileData file = mFiles[filetype];
int filelen = file.Data.Length;
//返回数据
rspBytes = new byte[10];
rspBytes[0] = rcvBytes[0];
rspBytes[1] = 0x41;
rspBytes[2] = 0x05;
rspBytes[3] = 0x06;
rspBytes[4] = rcvBytes[4];
rspBytes[5] = (byte)(filelen >> 24);
rspBytes[6] = (byte)(filelen >> 16);
rspBytes[7] = (byte)(filelen >> 8);
rspBytes[8] = (byte)(filelen % 256);
rspBytes[9] = (byte)(file.uFrameLen);
mUState = FileUpState.Started;
return(true);
}
//状态循环
switch (mUState)
{
case FileUpState.Started:
if (childcode == 0x06)
{
if (!mFiles.ContainsKey(filetype))
{
return(false);
}
if (datalen != 3)
{
return(false);
}
mFrameId = rcvBytes[5] * 256 + rcvBytes[6];
if (mFrameId != 0)
{
return(false);
}
//是否只有一帧
FileData file = mFiles[filetype];
int len;
if (file.uFrameLen >= file.Data.Length)
{
len = file.Data.Length;
mUState = FileUpState.Loaded;
}
else
{
len = file.uFrameLen;
mUState = FileUpState.Loading;
}
//返回数据
rspBytes = new byte[7 + len];
rspBytes[0] = rcvBytes[0];
rspBytes[1] = rcvBytes[1];
rspBytes[2] = rcvBytes[2];
rspBytes[3] = (byte)(3 + len);
rspBytes[4] = rcvBytes[4];
rspBytes[5] = rcvBytes[5];
rspBytes[6] = rcvBytes[6];
for (int j = 0; j < len; j++)
{
rspBytes[7 + j] = file.Data[j];
}
return(true);
}
break;
case FileUpState.Loading:
if (childcode == 0x06)
{
if (!mFiles.ContainsKey(filetype))
{
return(false);
}
if (datalen != 3)
{
return(false);
}
mFrameId = rcvBytes[5] * 256 + rcvBytes[6];
if (mFrameId < 1)
{
return(false);
}
//是否只有一帧
FileData file = mFiles[filetype];
int len;
int gettedlen = file.uFrameLen * mFrameId;
if (file.uFrameLen >= (file.Data.Length - gettedlen))
{
len = file.Data.Length - gettedlen;
mUState = FileUpState.Loaded;
}
else
{
len = file.uFrameLen;
mUState = FileUpState.Loading;
}
//返回数据
rspBytes = new byte[7 + len];
rspBytes[0] = rcvBytes[0];
rspBytes[1] = rcvBytes[1];
rspBytes[2] = rcvBytes[2];
rspBytes[3] = (byte)(3 + len);
rspBytes[4] = rcvBytes[4];
rspBytes[5] = rcvBytes[5];
rspBytes[6] = rcvBytes[6];
for (int j = 0; j < len; j++)
{
rspBytes[7 + j] = file.Data[j + gettedlen];
}
return(true);
}
break;
case FileUpState.Loaded:
if (childcode == 0x0c)
{
if (datalen != 1)
{
return(false);
}
if (!mFiles.ContainsKey(filetype))
{
return(false);
}
FileData file = mFiles[filetype];
byte[] crc16 = CRC.CRC16(file.Data);
//返回数据
rspBytes = new byte[7];
rspBytes[0] = rcvBytes[0];
rspBytes[1] = rcvBytes[1];
rspBytes[2] = rcvBytes[2];
rspBytes[3] = 0x03;
rspBytes[4] = rcvBytes[4];
rspBytes[5] = crc16[1];
rspBytes[6] = crc16[0];
mUState = FileUpState.Finish;
return(true);
}
break;
default:
break;
}
return(false);
}
/// <summary>
/// 文件加载
/// </summary>
/// <param name="rcvBytes"></param>
/// <param name="rspBytes"></param>
/// <returns></returns>
private bool FileDownload(byte[] rcvBytes, out byte[] rspBytes)
{
rspBytes = null;
byte childcode = rcvBytes[2];
byte datalen = rcvBytes[3];
byte filetype = rcvBytes[4];
//判断长度
if (rcvBytes.Length != datalen + 6)
{
return(false);
}
//启动加载
if (childcode == 0x01)
{
if (datalen != 6)
{
return(false);
}
int filelen = rcvBytes[6] * 65536 + rcvBytes[7] * 256 + rcvBytes[8];
FileData file = new FileData(filetype, filelen);
file.dFrameLen = (rcvBytes[9] > 224)? 224: rcvBytes[9];
if (mFiles.ContainsKey(filetype))
{
mFiles[filetype] = file;
}
else
{
mFiles.Add(filetype, file);
}
//返回数据
rspBytes = new byte[10];
for (int i = 0; i < 9; i++)
{
rspBytes[i] = rcvBytes[i];
}
rspBytes[9] = (byte)(file.dFrameLen);
mDState = FileDownState.Started;
return(true);
}
//状态循环
switch (mDState)
{
case FileDownState.Started:
if (childcode == 0x02)
{
if (!mFiles.ContainsKey(filetype))
{
return(false);
}
if (datalen < 4)
{
return(false);
}
if ((rcvBytes[5] != 0) || (rcvBytes[6] != 0))
{
return(false);
}
//长度是否为多帧
int framelen = rcvBytes[7];
FileData file = mFiles[filetype];
int len;
if (framelen >= file.Data.Length)
{
len = file.Data.Length;
mDState = FileDownState.Loaded;
}
else
{
len = framelen;
mDState = FileDownState.Loading;
}
//赋值给文件
for (int j = 0; j < len; j++)
{
file.Data[j] = rcvBytes[8 + j];
}
//返回数据
rspBytes = new byte[8];
for (int i = 0; i < 7; i++)
{
rspBytes[i] = rcvBytes[i];
}
rspBytes[3] = 4;
rspBytes[7] = (byte)(len);
return(true);
}
break;
case FileDownState.Loading:
if (childcode == 0x02)
{
if (!mFiles.ContainsKey(filetype))
{
return(false);
}
if (datalen < 4)
{
return(false);
}
mFrameId = rcvBytes[5] * 256 + rcvBytes[6];
if (mFrameId < 1)
{
return(false);
}
//长度
int framelen = rcvBytes[7];
FileData file = mFiles[filetype];
int len;
if (framelen >= file.dFrameLen)
{
len = file.dFrameLen;
}
else
{
len = framelen;
}
//赋值给文件
for (int j = 0; j < len; j++)
{
file.Data[mFrameId * file.dFrameLen + j] = rcvBytes[8 + j];
}
//返回数据
rspBytes = new byte[8];
for (int i = 0; i < 7; i++)
{
rspBytes[i] = rcvBytes[i];
}
rspBytes[3] = 4;
rspBytes[7] = (byte)(len);
if (mFrameId * file.dFrameLen + len == file.Data.Length)
{
mDState = FileDownState.Loaded;
}
return(true);
}
break;
case FileDownState.Loaded:
if (childcode == 0x03)
{
if (datalen != 3)
{
return(false);
}
if (!mFiles.ContainsKey(filetype))
{
return(false);
}
FileData file = mFiles[filetype];
byte[] crc16 = CRC.CRC16(file.Data);
//CRC校验
if (rcvBytes[5] != crc16[1] || rcvBytes[6] != crc16[0])
{
rspBytes = new byte[3];
rspBytes[0] = rcvBytes[0];
rspBytes[1] = 0xC1;
rspBytes[2] = 0x08;
mDState = FileDownState.Error;
return(true);
}
//返回数据
rspBytes = new byte[7];
for (int i = 0; i < 7; i++)
{
rspBytes[i] = rcvBytes[i];
}
mDState = FileDownState.Finish;
return(true);
}
break;
case FileDownState.Finish:
if (childcode == 0x04)
{
if (datalen != 1)
{
return(false);
}
if (!mFiles.ContainsKey(filetype))
{
return(false);
}
//返回数据
rspBytes = new byte[6];
rspBytes[0] = rcvBytes[0];
rspBytes[1] = rcvBytes[1];
rspBytes[2] = rcvBytes[2];
rspBytes[3] = 2;
rspBytes[4] = rcvBytes[4];
rspBytes[5] = 0;
mDState = FileDownState.Activating;
return(true);
}
break;
case FileDownState.Activating:
mDState = FileDownState.Activated;
break;
default:
break;
}
return(false);
}