private void CleanUpFields()
{
_logger.LogDebug("Searching for items to clean up.");
var currTickCount = Environment.TickCount;
var toRemove = Shield.InTransaction(() =>
_freshIndex
.Where(i => i.Item.RemovableSince.HasValue
? unchecked (currTickCount - i.Item.RemovableSince.Value) > Configuration.RemovableItemLingerMs
: i.Item.ExpiresInMs <= 0)
.Select(i => i.Item)
.ToArray());
_logger.LogDebug("Found {ToRemoveCount} items to clean up.", toRemove.Length);
Shield.InTransaction(() =>
{
foreach (var item in toRemove)
{
if (_local.TryGetValue(item.Key, out var mi) && mi == item)
{
if (item.RemovableSince.HasValue)
{
_local.Remove(item.Key);
}
else
{
Expire(item);
}
}
}
});
}
private TimerCallback GetDeletableTimerMethod()
{
var lockObj = new object();
return(_ =>
{
bool lockTaken = false;
try
{
Monitor.TryEnter(lockObj, ref lockTaken);
if (!lockTaken)
{
return;
}
var currTickCount = Environment.TickCount;
var toRemove = Shield.InTransaction(() =>
_freshIndex
.Where(i => i.Item.RemovableSince.HasValue
? unchecked (currTickCount - i.Item.RemovableSince.Value) > Configuration.RemovableItemLingerMs
: i.Item.ExpiresInMs <= 0)
.Select(i => i.Item)
.ToArray());
Shield.InTransaction(() =>
{
foreach (var item in toRemove)
{
if (_local.TryGetValue(item.Key, out var mi) && mi == item)
{
if (item.RemovableSince.HasValue)
{
_local.Remove(item.Key);
}
else
{
Expire(item);
}
}
}
});
}
catch (Exception ex)
{
RaiseError(new GossipBackendException("Unexpected error on deletable timer task.", ex));
}
finally
{
if (lockTaken)
{
Monitor.Exit(lockObj);
}
}
});
}
private static void ReadItemsShielded(ShieldedDictNc <long, object> ld, int iterations)
{
var sp = Stopwatch.StartNew();
for (int i = 0; i < iterations; i++)
{
object value;
ld.TryGetValue(i, out value);
}
Console.WriteLine(sp.Elapsed + " Reading values Shielded dictionary");
}
private static void ReadItemsShielded(ShieldedDictNc<long, object> ld, int iterations)
{
var sp = Stopwatch.StartNew();
for (int i = 0; i < iterations; i++)
{
object value;
ld.TryGetValue(i, out value);
}
Console.WriteLine(sp.Elapsed + " Reading values Shielded dictionary");
}
