internal void FreePage(long pageNumber)
{
if (_disposed != TxState.None)
{
ThrowObjectDisposed();
}
try
{
UntrackPage(pageNumber);
Debug.Assert(pageNumber >= 0);
_pageLocator.Reset(pageNumber); // Remove it from the page locator.
_freeSpaceHandling.FreePage(this, pageNumber);
_freedPages.Add(pageNumber);
if (_scratchPagesTable.TryGetValue(pageNumber, out var scratchPage))
{
if (_transactionPages.Remove(scratchPage))
{
_unusedScratchPages.Add(scratchPage);
}
_scratchPagesTable.Remove(pageNumber);
}
DiscardScratchModificationOn(pageNumber);
}
catch
{
_disposed |= TxState.Errored;
throw;
}
}
internal void FreePage(TreePage p)
{
PageFreed?.Invoke(p.PageNumber);
if (p.IsOverflow)
{
var numberOfPages = _llt.DataPager.GetNumberOfOverflowPages(p.OverflowSize);
for (int i = 0; i < numberOfPages; i++)
{
_llt.FreePage(p.PageNumber + i);
_pageLocator.Reset(p.PageNumber + i);
}
State.RecordFreedPage(p, numberOfPages);
}
else
{
_llt.FreePage(p.PageNumber);
_pageLocator.Reset(p.PageNumber);
State.RecordFreedPage(p, 1);
}
}
internal void FreePage(long pageNumber)
{
if (_disposed)
{
throw new ObjectDisposedException("Transaction");
}
UntrackPage(pageNumber);
Debug.Assert(pageNumber >= 0);
_pageLocator.Reset(pageNumber); // Remove it from the page locator.
_freeSpaceHandling.FreePage(this, pageNumber);
_freedPages.Add(pageNumber);
if (_scratchPagesTable.TryGetValue(pageNumber, out var scratchPage))
{
if (_transactionPages.Remove(scratchPage))
{
_unusedScratchPages.Add(scratchPage);
}
_scratchPagesTable.Remove(pageNumber);
}
if (_dirtyPages.Remove(pageNumber) == false &&
_dirtyOverflowPages.TryGetValue(pageNumber, out long numberOfOverflowPages))
{
_dirtyOverflowPages.Remove(pageNumber);
if (numberOfOverflowPages > 1) // prevent adding range which length is 0
{
_dirtyOverflowPages.Add(pageNumber + 1, numberOfOverflowPages - 1); // change the range of the overflow page
}
}
UntrackDirtyPage(pageNumber);
}