public IChunk Alloc(int allocsize, out int offset)
{
lock (this)
{
offset = -1;
int maxbuffsize = _buffsize * MAX_BEI;
if (allocsize > maxbuffsize)
{
IChunk bc = new BigChunk(allocsize);
offset = 0;
AddChunk(bc);
return(bc);
}
else
{
int needsize = allocsize;
if (allocsize % _buffsize != 0)
{
needsize = (allocsize / _buffsize + 1) * _buffsize;
}
IChunk p = _headChunk;
while (p != null)
{
if (p.BufferSize == needsize)
{
offset = p.AllocBuffer();
if (offset >= 0)
{
return(p);
}
}
p = p.Next;
}
IChunk bc = new MinChunk(COUNT_PERCHUNK, needsize);
offset = bc.AllocBuffer();
AddChunk(bc);
return(bc);
}
}
}
