public void LoadFromStream(BinaryReader br)
{
Clear();
int cnt = br.ReadInt32();
if ((cnt > MAX_ITEMS_COUNT) || (cnt < 0))
{
throw new Exception("Ошибка формата файла");
}
for (int i = 0; i < cnt; i++)
{
DpkWordItem dp = new DpkWordItem();
dp.LoadFromStream(br);
data_buf.Add(dp);
}
}
private void ParseData()
{
UInt32 u32; byte flags, mask;
int cnt = raw_buf.Length;
isOkData = false;
dpk_buf.Clear();
try
{
using (BinaryReader br = new BinaryReader(new MemoryStream(raw_buf)))
{
code_msg = br.ReadByte();
switch (code_msg)
{
case CODES_MSG_ARINC.CODE_MSG_ERR:
if (cnt < 5)
{
return;
}
{
DpkWordItem dpk = new DpkWordItem();
u32 = br.ReadUInt32();
dpk.Time = new TimeSpan(u32 * 10000);
dpk.Flags = DpkDataConstants.ERROR_FLAG;
dpk_buf.Add(dpk);
}
return;
case CODES_MSG_ARINC.CODE_MSG_DATA:
{
flags = br.ReadByte();
cnt = (cnt - 2) / 8; // количество слов ДПК
mask = 1;
for (int i = 0; i < cnt; i++)
{
DpkWordItem dpk = new DpkWordItem();
u32 = br.ReadUInt32();
dpk.Time = new TimeSpan(u32 * 10000);
u32 = br.ReadUInt32();
dpk.ADR = (int)(u32 & 0xFF);
dpk.DATA = (int)((u32 >> 8) & 0xFFFFFF);
dpk.Flags = ((mask & flags) != 0) ? 1 : 0;
mask <<= 1;
dpk_buf.Add(dpk);
}
}
break;
case CODES_MSG_ARINC.CODE_MSG_ANSWER:
if (cnt < 2)
{
return;
}
{
DpkWordItem dpk = new DpkWordItem();
dpk.ADR = br.ReadByte();
if (cnt == 3)
{
dpk.DATA = br.ReadByte();
}
dpk.Time = new TimeSpan(0);
dpk_buf.Add(dpk);
}
break;
case CODES_MSG_ARINC.CODE_MSG_OVER:
if (cnt < 5)
{
return;
}
{
DpkWordItem dpk = new DpkWordItem();
u32 = br.ReadUInt32();
dpk.Time = new TimeSpan(u32 * 10000);
dpk.Flags = DpkDataConstants.OVERFLOW_FLAG;
dpk_buf.Add(dpk);
}
break;
default:
return;
}
}
isOkData = true;
}
catch
{
isOkData = false;
}
}
public DpkWord(DpkWordItem dpk)
{
adr = (uint)dpk.ADR;
data = (uint)dpk.DATA;
}
