public void FreeAddress(int address)
{
// ak to bolo adresa na konci tak zmazať všetky volne adresy od konca až po platne data
if (address == LastAddress - _blockSize) // LastAddress - _blockSize -> posledna pridelena adresa.. na LastAddress ešte nič nie je
{
var blocksToErase = 1;
for (int i = _freeAddresses.Count - 1; i >= 0; i--)
{
var key = _freeAddresses.Items[i].Key;
if (key == address - _blockSize)
{
address = key;
++blocksToErase;
}
else
{
break;
}
}
_fileStream.Seek(0, SeekOrigin.Begin);
_fileStream.SetLength(LastAddress - blocksToErase * _blockSize);
if (blocksToErase > 1) // lebo ak je 1, tak sa tam ani nedostala
{
--blocksToErase;
_freeAddresses.RemoveRange(_freeAddresses.Count - blocksToErase, blocksToErase);
}
}
else
{
_freeAddresses.Add(address, address);
}
}