private long AllocateFromSmallActiveSection(int size)
{
long id;
if (ActiveDataSmallSection.TryAllocate(size, out id) == false)
{
InactiveSections.Add(_activeDataSmallSection.PageNumber);
using (var it = ActiveCandidateSection.Iterate())
{
if (it.Seek(long.MinValue))
{
do
{
var sectionPageNumber = it.CurrentKey;
_activeDataSmallSection = new ActiveRawDataSmallSection(_tx.LowLevelTransaction,
sectionPageNumber);
_activeDataSmallSection.DataMoved += OnDataMoved;
if (_activeDataSmallSection.TryAllocate(size, out id))
{
ActiveCandidateSection.Delete(sectionPageNumber);
return(id);
}
} while (it.MoveNext());
}
}
var newNumberOfPages = Math.Max((ushort)(ActiveDataSmallSection.NumberOfPages * 2), ushort.MaxValue);
_activeDataSmallSection = ActiveRawDataSmallSection.Create(_tx.LowLevelTransaction, Name, newNumberOfPages);
_activeDataSmallSection.DataMoved += OnDataMoved;
Slice pageNumber;
var val = _activeDataSmallSection.PageNumber;
using (Slice.External(_tx.Allocator, (byte *)&val, sizeof(long), out pageNumber))
{
_tableTree.Add(TableSchema.ActiveSectionSlice, pageNumber);
}
var allocationResult = _activeDataSmallSection.TryAllocate(size, out id);
Debug.Assert(allocationResult);
}
return(id);
}
private long AllocateFromSmallActiveSection(int size)
{
long id;
if (ActiveDataSmallSection.TryAllocate(size, out id) == false)
{
InactiveSections.Add(_activeDataSmallSection.PageNumber);
using (var it = ActiveCandidateSection.Iterate())
{
if (it.Seek(long.MinValue))
{
do
{
var sectionPageNumber = it.CurrentKey;
_activeDataSmallSection = new ActiveRawDataSmallSection(_tx.LowLevelTransaction,
sectionPageNumber);
if (_activeDataSmallSection.TryAllocate(size, out id))
{
ActiveCandidateSection.Delete(sectionPageNumber);
return(id);
}
} while (it.MoveNext());
}
}
_activeDataSmallSection = ActiveRawDataSmallSection.Create(_tx.LowLevelTransaction, Name);
var pageNumber = Slice.From(_tx.Allocator, EndianBitConverter.Little.GetBytes(_activeDataSmallSection.PageNumber), ByteStringType.Immutable);
_tableTree.Add(TableSchema.ActiveSection, pageNumber);
var allocationResult = _activeDataSmallSection.TryAllocate(size, out id);
Debug.Assert(allocationResult);
}
return(id);
}