internal int ExtendBitmapSpace()
{
var ix = TotalBitCount;
TheStore.TheFile.Position = BitmapToPos(ix);
TheStore.TheFile.WriteByte((byte)Store.SectorTypes.Unallocated);
var next = new BitmapSector(TheStore, ix, SectorSize);
#if STORE_DETAILED_TRACE_LOGS
System.Diagnostics.Debug.WriteLine("ExtendBitmapSpace: " + ix.ToString());
#endif
// Its now reserving space for itself
next[0] = true;
var lastbitmapsector = TheStore.Bits;
while (lastbitmapsector.NextBitmap != null)
{
lastbitmapsector = lastbitmapsector.NextBitmap;
}
lastbitmapsector.NextBitmap = next;
TheStore.TheFile.Position = BitmapToPos(lastbitmapsector.Ix) + 1;
StreamUtils.WriteInt32(TheStore.TheFile, next.Ix);
return(ix);
}
private void InitializeBitmapSector()
{
TheStore.TheFile.Position = BitmapToPos(Ix);
StreamUtils.WriteUInt8(TheStore.TheFile, (byte)Store.SectorTypes.Bitmap);
StreamUtils.WriteInt32(TheStore.TheFile, Store.LAST_SECTOR_IN_CHAIN);
NextBitmap = null;
SectorData = new byte[(int)TheStore.SectorDataSize];
StreamUtils.Write(TheStore.TheFile, SectorData);
}
public static byte[] BCGZipCompress(byte[] buf)
{
using (var ms = new MemoryStream())
{
ms.WriteByte(0x1f);
ms.WriteByte(0x8b);
ms.WriteByte(0x08);
ms.WriteByte(0x00);
ms.WriteByte(0x00);
ms.WriteByte(0x00);
ms.WriteByte(0x00);
ms.WriteByte(0x00);
ms.WriteByte(0x02);
ms.WriteByte(0xFF);
using (var gzs = new ZOutputStream(ms, 6, true))
{
gzs.Write(buf, 0, buf.Length);
gzs.Flush();
}
var crc = LZUtils.CRC32(buf);
// ZOutputStream closes the outer stream...
using (var ms2 = new MemoryStream())
{
StreamUtils.Write(ms2, ms.ToArray());
StreamUtils.WriteUInt32(ms2, crc);
StreamUtils.WriteInt32(ms2, buf.Length);
var msb = ms2.ToArray();
/*
* using ( var foos = new FileStream( "test.gz", FileMode.Create, FileAccess.Write ) )
* {
* foos.Write( msb );
* }
*/
return(msb);
}
}
}