private Possible <FullCacheRecordWithDeterminism, Failure> AddOrGet(WeakFingerprintHash weak, CasHash casElement, BuildXL.Cache.Interfaces.Hash hashElement, CasEntries hashes)
{
Contract.Requires(!IsClosed);
Contract.Requires(hashes.IsValid);
Contract.Assert(!m_readOnly);
// We check the Cas entries if we are strict
if (StrictMetadataCasCoupling)
{
// Check that the content is valid.
if (!m_pinnedToCas.ContainsKey(casElement))
{
return(new UnpinnedCasEntryFailure(CacheId, casElement));
}
foreach (CasHash hash in hashes)
{
if (!m_pinnedToCas.ContainsKey(hash))
{
return(new UnpinnedCasEntryFailure(CacheId, hash));
}
}
}
var strongFingerprints = Cache.Fingerprints.GetOrAdd(weak, (key) => new ConcurrentDictionary <StrongFingerprint, FullCacheRecord>());
var record = strongFingerprints.AddOrUpdate(
new StrongFingerprint(weak, casElement, hashElement, Cache.CacheId),
(strong) => new FullCacheRecord(strong, hashes),
(strong, oldRecord) =>
{
// Do no harm here - we will recheck this outside to produce the error that it was a bad attempt
if (oldRecord.CasEntries.Determinism.IsSinglePhaseNonDeterministic != hashes.Determinism.IsSinglePhaseNonDeterministic)
{
return(oldRecord);
}
// We replace if we are SinglePhaseNonDeterministic *or*
// if we are upgrading the determinism.
if (hashes.Determinism.IsSinglePhaseNonDeterministic ||
(!oldRecord.CasEntries.Determinism.IsDeterministicTool &&
(hashes.Determinism.IsDeterministic && !hashes.Determinism.Equals(oldRecord.CasEntries.Determinism))) ||
HasMissingContent(oldRecord.CasEntries))
{
oldRecord = new FullCacheRecord(strong, hashes);
}
return(oldRecord);
});
if (record.CasEntries.Determinism.IsSinglePhaseNonDeterministic != hashes.Determinism.IsSinglePhaseNonDeterministic)
{
return(new SinglePhaseMixingFailure(CacheId));
}
AddSessionRecord(record);
if (record.CasEntries.Equals(hashes))
{
record = null;
}
else
{
// Check if tool determinism did not make it in - that means a very bad thing happened
if (hashes.Determinism.IsDeterministicTool)
{
return(new NotDeterministicFailure(Cache.CacheId, record, new FullCacheRecord(record.StrongFingerprint, hashes)));
}
}
if (record == null)
{
return(new FullCacheRecordWithDeterminism(hashes.GetFinalDeterminism(Cache.IsAuthoritative, Cache.CacheGuid, CacheDeterminism.NeverExpires)));
}
else
{
return(new FullCacheRecordWithDeterminism(new FullCacheRecord(record.StrongFingerprint, record.CasEntries.GetModifiedCasEntriesWithDeterminism(Cache.IsAuthoritative, Cache.CacheGuid, CacheDeterminism.NeverExpires))));
}
}
public Task <Possible <FullCacheRecordWithDeterminism, Failure> > AddOrGetAsync(WeakFingerprintHash weak, CasHash casElement, BuildXL.Cache.Interfaces.Hash hashElement, CasEntries hashes, UrgencyHint urgencyHint, Guid activityId)
{
Contract.Requires(!IsClosed);
Contract.Requires(hashes.IsValid);
Contract.Assert(!m_readOnly);
return(Task.Run(() => AddOrGet(weak, casElement, hashElement, hashes)));
}