void CompactOnePureValueFileIteration(List <uint> toRemoveFileIds)
{
_cancellation.ThrowIfCancellationRequested();
var writer = _keyValueDB.StartPureValuesFile(out var valueFileId);
while (true)
{
var wastefullFileId =
FindMostWastefullFile(_keyValueDB.MaxTrLogFileSize - writer.GetCurrentPosition());
if (wastefullFileId == 0)
{
break;
}
MoveValuesContent(writer, wastefullFileId, valueFileId);
if (_fileStats.GetOrFakeValueRef(wastefullFileId).IsFreeToDelete())
{
toRemoveFileIds.Add(wastefullFileId);
}
_fileStats.GetOrFakeValueRef(wastefullFileId) = new FileStat(0);
}
var valueFile = _keyValueDB.FileCollection.GetFile(valueFileId);
valueFile.HardFlush();
valueFile.Truncate();
_keyValueDB.Logger?.CompactionCreatedPureValueFile(valueFileId, valueFile.GetSize(),
(uint)_newPositionMap.Count, 28 *
#if NETFRAMEWORK
(ulong)_newPositionMap.Count
#else
(ulong) _newPositionMap.EnsureCapacity(0)
#endif
);
}
void CompactOnePureValueFileIteration(ref StructList <uint> toRemoveFileIds)
{
_cancellation.ThrowIfCancellationRequested();
_writerBytesPerSecondLimiter = new BytesPerSecondLimiter(_keyValueDB.CompactorWriteBytesPerSecondLimit);
var writer = _keyValueDB.StartPureValuesFile(out var valueFileId);
var firstIteration = true;
while (true)
{
var wastefulFileId =
FindMostWastefulFile(firstIteration
? uint.MaxValue
: _keyValueDB.MaxTrLogFileSize - writer.GetCurrentPositionWithoutWriter());
firstIteration = false;
if (wastefulFileId == 0)
{
break;
}
MoveValuesContent(writer, wastefulFileId, valueFileId);
if (_fileStats.GetOrFakeValueRef(wastefulFileId).IsFreeToDelete())
{
toRemoveFileIds.Add(wastefulFileId);
}
_fileStats.GetOrFakeValueRef(wastefulFileId) = new FileStat(0);
}
var valueFile = _keyValueDB.FileCollection.GetFile(valueFileId);
valueFile !.HardFlushTruncateSwitchToReadOnlyMode();
_keyValueDB.Logger?.CompactionCreatedPureValueFile(valueFileId, valueFile.GetSize(),
(uint)_newPositionMap.Count, 28 * (ulong)_newPositionMap.EnsureCapacity(0)
);
}