public void FreeMemory()
{
lock (_lock)
{
_bits.Optimize();
SaveIndex();
}
}
private void WriteFreeListBMPFile()
{
// write freelist to end of blocks and update master block
if (_freeList != null)
{
_freeList.Optimize();
var o = _freeList.Serialize();
var b = fastBinaryJSON.BJSON.ToBJSON(o, new fastBinaryJSON.BJSONParameters {
UseExtensions = false
});
var len = b.Length;
var offset = 0;
// write master block
SeekBlock(0);
_lastBlockNumber++;
WriteBlockBytes(new byte[] { (byte)'F', (byte)'L' }, 0, 2);
WriteBlockBytes(Helper.GetBytes(_lastBlockNumber, false), 0, 4);
WriteBlockBytes(Helper.GetBytes(len, false), 0, 4);
// seek to end of file
SeekBlock(_lastBlockNumber);
while (len > 0)
{
WriteBlockBytes(new byte[] { (byte)'F', (byte)'L' }, 0, 2);
WriteBlockBytes(b, offset, len > _BLOCKSIZE ? _BLOCKSIZE - 2 : len);
len -= (_BLOCKSIZE - 2);
}
}
}
public void Commit(bool freeMemory)
{
if (_isDirty == false)
{
return;
}
using (new L(this))
{
log.Debug("writing " + _filename);
int[] keys = _cache.Keys();
Array.Sort(keys);
foreach (int k in keys)
{
MGRB bmp = null;
if (_cache.TryGetValue(k, out bmp) && bmp.isDirty)
{
bmp.Optimize();
SaveBitmap(k, bmp);
bmp.isDirty = false;
}
}
Flush();
if (freeMemory)
{
if (Global.UseLessMemoryStructures)
{
_cache = new SafeSortedList <int, MGRB>();
}
else
{
_cache = new SafeDictionary <int, MGRB>();
}
log.Debug(" freeing cache");
}
_isDirty = false;
}
}
