public void Align16_long()
{
Aver.AreEqual(16, IntMath.Align16(3L));
Aver.AreEqual(48, IntMath.Align16(33L));
Aver.AreEqual(0, IntMath.Align16(0L));
Aver.AreEqual(16, IntMath.Align16(8L));
Aver.AreEqual(16, IntMath.Align16(16L));
Aver.AreEqual(32, IntMath.Align16(17L));
Aver.AreEqual(128, IntMath.Align16(127L));
Aver.AreEqual(128, IntMath.Align16(128L));
Aver.AreEqual(144, IntMath.Align16(129L));
Aver.AreEqual(0, IntMath.Align16(-5L));
Aver.AreEqual(-16, IntMath.Align16(-17L));
}
public void Align16_int()
{
Aver.AreEqual(16, IntMath.Align16(3));
Aver.AreEqual(48, IntMath.Align16(33));
Aver.AreEqual(0, IntMath.Align16(0));
Aver.AreEqual(16, IntMath.Align16(8));
Aver.AreEqual(16, IntMath.Align16(16));
Aver.AreEqual(32, IntMath.Align16(17));
Aver.AreEqual(128, IntMath.Align16(127));
Aver.AreEqual(128, IntMath.Align16(128));
Aver.AreEqual(144, IntMath.Align16(129));
Aver.AreEqual(0, IntMath.Align16(-5));
Aver.AreEqual(-16, IntMath.Align16(-17));
}
private static Type readHeader(Stream stream)
{
var buf = Format.getBuff32();
Format.readFromStream(stream, buf, Format.HEADER_BUF.Length);
for (var i = 0; i < Format.HEADER_BUF.Length; i++)
{
if (buf[i] != Format.HEADER_BUF[i])
{
throw new BinLogException(StringConsts.BINLOG_STREAM_CORRUPTED_ERROR + "bad header");
}
}
var tn = Format.ReadString(stream);
if (tn.IsNullOrWhiteSpace())
{
throw new BinLogException(StringConsts.BINLOG_STREAM_CORRUPTED_ERROR + "bad type");
}
var pos = stream.Position;
var start = IntMath.Align16(pos);
while (pos < start)
{
if (Format.ReadByte(stream) != 0)
{
throw new BinLogException(StringConsts.BINLOG_STREAM_CORRUPTED_ERROR + "bad header pad");
}
}
var result = Type.GetType(tn, false);
if (result == null || !typeof(LogReader).IsAssignableFrom(result))
{
throw new BinLogException(StringConsts.BINLOG_BAD_READER_TYPE_ERROR + tn);
}
return(result);
}
public IEnumerable <object> read(bool includeMetadata)
{
DateTime current = MiscUtils.UNIX_EPOCH_START_DATE;
while (App.Active)
{
while (App.Active)
{
var h = Format.TryReadPageHeader(m_Stream, ref current);
if (h == Format.PageHeaderReadStatus.OK)
{
break;
}
if (h == Format.PageHeaderReadStatus.EOF)
{
yield break;
}
var pos = Stream.Position;
var newPos = IntMath.Align16(pos);
var delta = newPos - pos;
var eof = true;
try
{
if (delta > 0)
{
Stream.Seek(delta, SeekOrigin.Current);
}
eof = false;
}
catch {}
if (eof)
{
yield break;
}
}//page
while (App.Active)
{
byte rec = Format.REC_INVALID;
try{ rec = Format.ReadByte(m_Stream); } catch {}
if (rec == Format.REC_EOF)
{
break;
}
else if (rec == Format.REC_TIMESTAMP)
{
DateTime ts = DateTime.MinValue;
try{ ts = Format.ReadTimeStamp(m_Stream); } catch {}
if (ts <= MiscUtils.UNIX_EPOCH_START_DATE || ts < current)//corruption
{
if (includeMetadata)
{
yield return(LogCorruption.Instance);
}
break;
}
current = ts;
if (includeMetadata)
{
yield return(new LogUTCTimeStamp(ts));
}
}
else if (rec == Format.REC_SERIALIZER)
{
//todo deserialize
}
else
{
if (includeMetadata)
{
yield return(LogCorruption.Instance);
}
break;
}
} //records
} //outer
}