private bool UpdateFileInformationForAllEntries(MemoryMappedViewAccessor indexView, Index otherIndex, bool shouldAlsoTryPopulateFromDisk)
{
long updatedEntriesFromOtherIndex = 0;
long updatedEntriesFromDisk = 0;
using (MemoryMappedFile mmf = otherIndex.GetMemoryMappedFile())
using (MemoryMappedViewAccessor otherIndexView = mmf.CreateViewAccessor())
{
Parallel.ForEach(
this.indexEntryOffsets,
entry =>
{
string currentIndexFilename = entry.Key;
long currentIndexOffset = entry.Value;
if (!IndexEntry.HasInitializedCTimeEntry(indexView, currentIndexOffset))
{
long otherIndexOffset;
if (otherIndex.indexEntryOffsets.TryGetValue(currentIndexFilename, out otherIndexOffset))
{
if (IndexEntry.HasInitializedCTimeEntry(otherIndexView, otherIndexOffset))
{
IndexEntry currentIndexEntry = new IndexEntry(indexView, currentIndexOffset);
IndexEntry otherIndexEntry = new IndexEntry(otherIndexView, otherIndexOffset);
currentIndexEntry.CtimeSeconds = otherIndexEntry.CtimeSeconds;
currentIndexEntry.CtimeNanosecondFraction = otherIndexEntry.CtimeNanosecondFraction;
currentIndexEntry.MtimeSeconds = otherIndexEntry.MtimeSeconds;
currentIndexEntry.MtimeNanosecondFraction = otherIndexEntry.MtimeNanosecondFraction;
currentIndexEntry.Size = otherIndexEntry.Size;
Interlocked.Increment(ref updatedEntriesFromOtherIndex);
}
}
else if (shouldAlsoTryPopulateFromDisk)
{
string localPath = currentIndexFilename.FromGitRelativePathToWindowsFullPath(this.repoRoot);
if (TryUpdateEntryFromDisk(indexView, localPath, entry.Value))
{
Interlocked.Increment(ref updatedEntriesFromDisk);
}
}
}
});
}
this.tracer.RelatedEvent(
EventLevel.Informational,
"UpdateIndexFileInformation",
new EventMetadata()
{
{ "UpdatedFromOtherIndex", updatedEntriesFromOtherIndex },
{ "UpdatedFromDisk", updatedEntriesFromDisk }
},
Keywords.Telemetry);
return((updatedEntriesFromOtherIndex > 0) || (updatedEntriesFromDisk > 0));
}