/// <summary>
///
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
public byte[] Table_WriteToTheEnd(byte[] data)
{
long position = 0;
lock (lock_fs)
{
position = _fsData.Write_ToTheEnd(ref data);
}
return(((ulong)position).To_8_bytes_array_BigEndian().Substring(8 - DefaultPointerLen, DefaultPointerLen));
}
/// <summary>
///
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
public byte[] Table_WriteToTheEnd(byte[] data)
{
long position = 0;
/* Emulation of the direct write to the disk without sequential cache */
//_fsData.Position = position = _fsData.Length;
//_fsData.Write(data, 0, data.Length);
//return ((ulong)position).To_8_bytes_array_BigEndian().Substring(8 - DefaultPointerLen, DefaultPointerLen);
/**************************************************************/
lock (lock_fs)
{
//case when incoming data bigger then buffer, we clean buffer and write data directly to the disk
if (data.Length > _seqBufCapacity)
{
FlushSequentialBuffer();
RIC.DataFilePosition = position = RIC.DataFileLength;
RIC.DataFileWrite(data, 0, data.Length, false);
//_fsData.Position = position = _fsData.Length;
//_fsData.Write(data, 0, data.Length);
return ((ulong)position).To_8_bytes_array_BigEndian().Substring(8 - DefaultPointerLen, DefaultPointerLen);
}
//Time to clean buffer
if (_seqBuf.EOF + data.Length > _seqBufCapacity)
{
FlushSequentialBuffer();
}
//Writing into buffer
position = RIC.DataFileLength + _seqBuf.EOF;
//position = _fsData.Length + _seqBuf.EOF;
_seqBuf.Write_ToTheEnd(data);
//eofData (ptr to the end of file before current commit) will be increased only after flush
}
return ((ulong)position).To_8_bytes_array_BigEndian().Substring(8 - DefaultPointerLen, DefaultPointerLen);
}
private void TestMemoryStorage()
{
if (memoryEngine == null)
{
memoryEngine = new DBreezeEngine(new DBreezeConfiguration()
{
Storage = DBreezeConfiguration.eStorage.MEMORY
});
}
//SortedDictionary<string, int> _d = new SortedDictionary<string, int>();
//DBreeze.Diagnostic.SpeedStatistic.StartCounter("a");
//DateTime dt=new DateTime(1970,1,1);
//for (int i = 0; i < 1000000; i++)
//{
// _d.Add(dt.Ticks.ToString(), i);
// dt=dt.AddSeconds(7);
//}
//DBreeze.Diagnostic.SpeedStatistic.PrintOut("a", true);
//DBreeze.Diagnostic.SpeedStatistic.StartCounter("a");
//int c1 = 0;
//foreach (var row in _d.OrderBy(r => r.Key))
//{
// c1++;
//}
//DBreeze.Diagnostic.SpeedStatistic.PrintOut("a", true);
//Console.WriteLine(c1);
//memoryEngine.Scheme.DeleteTable("t1");
//DBreeze.Diagnostic.SpeedStatistic.StartCounter("a");
////DateTime dt = new DateTime(1970, 1, 1);
//using (var tran = memoryEngine.GetTransaction())
//{
// for (int i = 0; i < 1000000; i++)
// {
// // tran.Insert<string, int>("t1", dt.Ticks.ToString(), i);
// // dt = dt.AddSeconds(7);
// tran.Insert<byte[], byte[]>("t1", i.To_4_bytes_array_BigEndian(), i.To_4_bytes_array_BigEndian());
// }
// //Console.WriteLine(tran.Count("t1"));
// tran.Commit();
//}
//DBreeze.Diagnostic.SpeedStatistic.PrintOut("a", true);
//int c1 = 0;
//DBreeze.Diagnostic.SpeedStatistic.StartCounter("a");
//using (var tran = memoryEngine.GetTransaction())
//{
// DBreeze.Diagnostic.SpeedStatistic.StartCounter("a");
// foreach (var row in tran.SelectForward<string, int>("t1"))
// {
// c1++;
// }
// DBreeze.Diagnostic.SpeedStatistic.PrintOut("a", true);
// Console.WriteLine(c1);
//}
ms = new MemoryStorage(10, 10, MemoryStorage.eMemoryExpandStartegy.FIXED_LENGTH_INCREASE);
ms.Write_ToTheEnd(new byte[] { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 });
ms.Write_ToTheEnd(new byte[] { 1, 1, 1, 1, 1 });
//ms.Write_ByOffset(17,new byte[] { 1, 1, 1, 1, 1 });
//Console.WriteLine(ms.MemorySize);
//Console.WriteLine(ms.Read(0, ms.MemorySize).ToBytesString(""));
Console.WriteLine(ms.GetFullData().Length);
}
