public async Task <Possible <CasEntries, Failure> > GetCacheEntryAsync(StrongFingerprint strong, UrgencyHint urgencyHint, Guid activityId)
{
Contract.Requires(!IsClosed);
Contract.Requires(strong != null);
using (var counter = m_counters.GetCacheEntryCounter())
{
using (var eventing = new GetCacheEntryActivity(BasicFilesystemCache.EventSource, activityId, this))
{
eventing.Start(strong, urgencyHint);
var result = await m_cache.ReadCacheEntryAsync(strong);
if (result.Succeeded)
{
AddSessionRecord(strong);
counter.CacheHit();
result = result.Result.GetModifiedCasEntriesWithDeterminism(m_cache.IsAuthoritative, m_cache.CacheGuid, DateTime.UtcNow.Add(m_cache.TimeToLive));
}
return(eventing.Returns(result));
}
}
}