internal void UpdateUsage(DateTime utcNow, CacheUsage usage)
{
// update, but not more frequently than once per second.
if (InUsage() && _utcLastUpdateUsage < utcNow - CacheUsage.CORRELATED_REQUEST_TIMEOUT)
{
_utcLastUpdateUsage = utcNow;
usage.Update(this);
if (_fields != null && _fields._dependencies != null)
{
foreach (ChangeMonitor monitor in _fields._dependencies)
{
MemoryCacheEntryChangeMonitor m = monitor as MemoryCacheEntryChangeMonitor;
if (m == null)
{
continue;
}
foreach (MemoryCacheEntry e in m.Dependencies)
{
MemoryCacheStore store = e._fields._cache.GetStore(e);
e.UpdateUsage(utcNow, store.Usage);
}
}
}
}
}
private void InitDisposableMembers(NameValueCollection config)
{
bool dispose = true;
try {
try {
_perfCounters = new PerfCounters(_name);
}
catch {
// ignore exceptions from perf counters
}
for (int i = 0; i < _stores.Length; i++)
{
_stores[i] = new MemoryCacheStore(this, _perfCounters);
}
_stats = new MemoryCacheStatistics(this, config);
AppDomain appDomain = Thread.GetDomain();
EventHandler onAppDomainUnload = new EventHandler(OnAppDomainUnload);
appDomain.DomainUnload += onAppDomainUnload;
_onAppDomainUnload = onAppDomainUnload;
UnhandledExceptionEventHandler onUnhandledException = new UnhandledExceptionEventHandler(OnUnhandledException);
appDomain.UnhandledException += onUnhandledException;
_onUnhandledException = onUnhandledException;
dispose = false;
}
finally {
if (dispose)
{
Dispose();
}
}
}
internal MemoryCacheEntry RemoveEntry(string key, MemoryCacheEntry entry, CacheEntryRemovedReason reason)
{
MemoryCacheKey cacheKey = new MemoryCacheKey(key);
MemoryCacheStore store = GetStore(cacheKey);
return(store.Remove(cacheKey, entry, reason));
}
// Associates this entry with an update sentinel. If this entry has a sliding expiration, we need to
// touch the sentinel so that it doesn't expire.
internal void ConfigureUpdateSentinel(MemoryCacheStore sentinelStore, MemoryCacheEntry sentinelEntry)
{
lock (this)
{
_fields ??= new SeldomUsedFields();
_fields._updateSentinel = Tuple.Create(sentinelStore, sentinelEntry);
}
}
internal CacheUsage(MemoryCacheStore cacheStore)
{
_cacheStore = cacheStore;
_buckets = new UsageBucket[NUMBUCKETS];
for (byte b = 0; b < _buckets.Length; b++)
{
_buckets[b] = new UsageBucket(this, b);
}
}
internal MemoryCacheEntry GetEntry(string key)
{
if (IsDisposed)
{
return(null);
}
MemoryCacheKey cacheKey = new MemoryCacheKey(key);
MemoryCacheStore store = GetStore(cacheKey);
return(store.Get(cacheKey));
}
public override void Set(string key, object value, CacheItemPolicy policy, string regionName = null)
{
if (regionName != null)
{
throw new NotSupportedException(SR.RegionName_not_supported);
}
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
DateTimeOffset absExp = ObjectCache.InfiniteAbsoluteExpiration;
TimeSpan slidingExp = ObjectCache.NoSlidingExpiration;
CacheItemPriority priority = CacheItemPriority.Default;
Collection <ChangeMonitor> changeMonitors = null;
CacheEntryRemovedCallback removedCallback = null;
if (policy != null)
{
ValidatePolicy(policy);
if (policy.UpdateCallback != null)
{
Set(key, value, policy.ChangeMonitors, policy.AbsoluteExpiration, policy.SlidingExpiration, policy.UpdateCallback);
return;
}
absExp = policy.AbsoluteExpiration;
slidingExp = policy.SlidingExpiration;
priority = policy.Priority;
changeMonitors = policy.ChangeMonitors;
removedCallback = policy.RemovedCallback;
}
if (IsDisposed)
{
if (changeMonitors != null)
{
foreach (ChangeMonitor monitor in changeMonitors)
{
if (monitor != null)
{
monitor.Dispose();
}
}
}
IsDisposedOrThrow();
return;
}
MemoryCacheKey cacheKey = new MemoryCacheKey(key);
MemoryCacheStore store = GetStore(cacheKey);
store.Set(cacheKey, new MemoryCacheEntry(key, value, absExp, slidingExp, priority, changeMonitors, removedCallback, this));
}
internal CacheExpires(MemoryCacheStore cacheStore)
{
Debug.Assert(NUMBUCKETS < byte.MaxValue);
DateTime utcNow = DateTime.UtcNow;
_cacheStore = cacheStore;
_buckets = new ExpiresBucket[NUMBUCKETS];
for (byte b = 0; b < _buckets.Length; b++)
{
_buckets[b] = new ExpiresBucket(this, b, utcNow);
}
}
private object AddOrGetExistingInternal(string key, object value, CacheItemPolicy policy)
{
if (key is null)
{
throw new ArgumentNullException(nameof(key));
}
DateTimeOffset absExp = ObjectCache.InfiniteAbsoluteExpiration;
TimeSpan slidingExp = ObjectCache.NoSlidingExpiration;
CacheItemPriority priority = CacheItemPriority.Default;
Collection <ChangeMonitor> changeMonitors = null;
CacheEntryRemovedCallback removedCallback = null;
if (policy != null)
{
ValidatePolicy(policy);
if (policy.UpdateCallback != null)
{
throw new ArgumentException(SR.Update_callback_must_be_null, nameof(policy));
}
absExp = policy.AbsoluteExpiration;
slidingExp = policy.SlidingExpiration;
priority = policy.Priority;
changeMonitors = policy.ChangeMonitors;
removedCallback = policy.RemovedCallback;
}
if (IsDisposed)
{
if (changeMonitors != null)
{
foreach (ChangeMonitor monitor in changeMonitors)
{
if (monitor != null)
{
monitor.Dispose();
}
}
}
IsDisposedOrThrow();
return(null);
}
MemoryCacheKey cacheKey = new MemoryCacheKey(key);
MemoryCacheStore store = GetStore(cacheKey);
MemoryCacheEntry entry = store.AddOrGetExisting(cacheKey, new MemoryCacheEntry(key, value, absExp, slidingExp, priority, changeMonitors, removedCallback, this));
return((entry != null) ? entry.Value : null);
}
internal void UpdateSlidingExpForUpdateSentinel()
{
// We don't need a lock to get information about the update sentinel
SeldomUsedFields fields = _fields;
if (fields != null)
{
Tuple <MemoryCacheStore, MemoryCacheEntry> sentinelInfo = fields._updateSentinel;
// touch the update sentinel to keep it from expiring
if (sentinelInfo != null)
{
MemoryCacheStore sentinelStore = sentinelInfo.Item1;
MemoryCacheEntry sentinelEntry = sentinelInfo.Item2;
sentinelStore.UpdateExpAndUsage(sentinelEntry, updatePerfCounters: false); // perf counters shouldn't be polluted by touching update sentinel entry
}
}
}
internal void UpdateUsage(DateTime utcNow, CacheUsage usage)
{
if (this.InUsage() && (this._utcLastUpdateUsage < (utcNow - CacheUsage.CORRELATED_REQUEST_TIMEOUT)))
{
this._utcLastUpdateUsage = utcNow;
usage.Update(this);
if ((this._fields != null) && (this._fields._dependencies != null))
{
foreach (ChangeMonitor monitor in this._fields._dependencies)
{
MemoryCacheEntryChangeMonitor monitor2 = monitor as MemoryCacheEntryChangeMonitor;
if (monitor2 != null)
{
foreach (MemoryCacheEntry entry in monitor2.Dependencies)
{
MemoryCacheStore store = entry._fields._cache.GetStore(entry);
entry.UpdateUsage(utcNow, store.Usage);
}
}
}
}
}
}
internal int FlushExpiredItems(DateTime utcNow, bool useInsertBlock)
{
if (_cEntriesInUse == 0 || GetExpiresCount(utcNow) == 0)
{
return(0);
}
Debug.Assert(_cEntriesInFlush == 0, "_cEntriesInFlush == 0");
ExpiresEntryRef inFlushHead = ExpiresEntryRef.INVALID;
ExpiresEntry[] entries;
int entryIndex;
MemoryCacheEntry cacheEntry;
int flushed = 0;
try
{
if (useInsertBlock)
{
_cacheExpires.MemoryCacheStore.BlockInsert();
}
lock (this)
{
Debug.Assert(_blockReduce == false, "_blockReduce == false");
if (_cEntriesInUse == 0 || GetExpiresCount(utcNow) == 0)
{
return(0);
}
ResetCounts(utcNow);
int cPages = _cPagesInUse;
for (int i = 0; i < _pages.Length; i++)
{
entries = _pages[i]._entries;
if (entries != null)
{
int cEntries = NUM_ENTRIES - ((entries)[0]._cFree);
for (int j = 1; j < entries.Length; j++)
{
cacheEntry = entries[j]._cacheEntry;
if (cacheEntry != null)
{
if (entries[j]._utcExpires > utcNow)
{
AddCount(entries[j]._utcExpires);
}
else
{
cacheEntry.ExpiresBucket = 0xff;
cacheEntry.ExpiresEntryRef = ExpiresEntryRef.INVALID;
entries[j]._cFree = 1;
entries[j]._next = inFlushHead;
inFlushHead = new ExpiresEntryRef(i, j);
flushed++;
_cEntriesInFlush++;
}
cEntries--;
if (cEntries == 0)
{
break;
}
}
}
cPages--;
if (cPages == 0)
{
break;
}
}
}
if (flushed == 0)
{
Dbg.Trace("CacheExpiresFlushTotal", "FlushExpiredItems flushed " + flushed +
" expired items, bucket=" + _bucket + "; Time=" + DateTime.Now.ToString("o", CultureInfo.InvariantCulture));
return(0);
}
_blockReduce = true;
}
}
finally
{
if (useInsertBlock)
{
_cacheExpires.MemoryCacheStore.UnblockInsert();
}
}
Debug.Assert(!inFlushHead.IsInvalid, "!inFlushHead.IsInvalid");
MemoryCacheStore cacheStore = _cacheExpires.MemoryCacheStore;
ExpiresEntryRef current = inFlushHead;
ExpiresEntryRef next;
while (!current.IsInvalid)
{
entries = (_pages[(current.PageIndex)]._entries);
entryIndex = current.Index;
next = entries[entryIndex]._next;
cacheEntry = entries[entryIndex]._cacheEntry;
entries[entryIndex]._cacheEntry = null;
Debug.Assert(cacheEntry.ExpiresEntryRef.IsInvalid, "cacheEntry.ExpiresEntryRef.IsInvalid");
cacheStore.Remove(cacheEntry, cacheEntry, CacheEntryRemovedReason.Expired);
current = next;
}
try
{
if (useInsertBlock)
{
_cacheExpires.MemoryCacheStore.BlockInsert();
}
lock (this)
{
current = inFlushHead;
while (!current.IsInvalid)
{
entries = (_pages[(current.PageIndex)]._entries);
entryIndex = current.Index;
next = entries[entryIndex]._next;
_cEntriesInFlush--;
AddExpiresEntryToFreeList(current);
current = next;
}
Debug.Assert(_cEntriesInFlush == 0, "_cEntriesInFlush == 0");
_blockReduce = false;
Reduce();
Dbg.Trace("CacheExpiresFlushTotal", "FlushExpiredItems flushed " + flushed +
" expired items, bucket=" + _bucket + "; Time=" + DateTime.Now.ToString("o", CultureInfo.InvariantCulture));
}
}
finally
{
if (useInsertBlock)
{
_cacheExpires.MemoryCacheStore.UnblockInsert();
}
}
return(flushed);
}
private void InitDisposableMembers(NameValueCollection config) {
bool dispose = true;
try {
try {
_perfCounters = new PerfCounters(_name);
}
catch {
// ignore exceptions from perf counters
}
for (int i = 0; i < _stores.Length; i++) {
_stores[i] = new MemoryCacheStore(this, _perfCounters);
}
_stats = new MemoryCacheStatistics(this, config);
AppDomain appDomain = Thread.GetDomain();
EventHandler onAppDomainUnload = new EventHandler(OnAppDomainUnload);
appDomain.DomainUnload += onAppDomainUnload;
_onAppDomainUnload = onAppDomainUnload;
UnhandledExceptionEventHandler onUnhandledException = new UnhandledExceptionEventHandler(OnUnhandledException);
appDomain.UnhandledException += onUnhandledException;
_onUnhandledException = onUnhandledException;
dispose = false;
}
finally {
if (dispose) {
Dispose();
}
}
}
internal int FlushUnderUsedItems(int maxFlush, bool force)
{
UsageEntry[] entryArray;
int num;
UsageEntryRef ref6;
UsageEntryRef ref7;
if (this._cEntriesInUse == 0)
{
return(0);
}
UsageEntryRef iNVALID = UsageEntryRef.INVALID;
int num2 = 0;
try
{
this._cacheUsage.MemoryCacheStore.BlockInsert();
lock (this)
{
UsageEntryRef ref4;
if (this._cEntriesInUse == 0)
{
return(0);
}
DateTime utcNow = DateTime.UtcNow;
for (UsageEntryRef ref3 = this._lastRefTail; (this._cEntriesInFlush < maxFlush) && !ref3.IsInvalid; ref3 = ref4)
{
for (ref4 = this._pages[ref3.PageIndex]._entries[ref3.Ref2Index]._ref2._prev; ref4.IsRef1; ref4 = this._pages[ref4.PageIndex]._entries[ref4.Ref1Index]._ref1._prev)
{
}
entryArray = this._pages[ref3.PageIndex]._entries;
num = ref3.Ref2Index;
if (!force)
{
DateTime time = entryArray[num]._utcDate;
if (((utcNow - time) <= CacheUsage.NEWADD_INTERVAL) && (utcNow >= time))
{
continue;
}
}
UsageEntryRef entryRef = new UsageEntryRef(ref3.PageIndex, ref3.Ref2Index);
entryArray[num]._cacheEntry.UsageEntryRef = UsageEntryRef.INVALID;
this.RemoveEntryFromLastRefList(entryRef);
entryArray[num]._ref1._next = iNVALID;
iNVALID = entryRef;
num2++;
this._cEntriesInFlush++;
}
if (num2 == 0)
{
return(0);
}
this._blockReduce = true;
}
}
finally
{
this._cacheUsage.MemoryCacheStore.UnblockInsert();
}
MemoryCacheStore memoryCacheStore = this._cacheUsage.MemoryCacheStore;
for (ref6 = iNVALID; !ref6.IsInvalid; ref6 = ref7)
{
entryArray = this._pages[ref6.PageIndex]._entries;
num = ref6.Ref1Index;
ref7 = entryArray[num]._ref1._next;
MemoryCacheEntry key = entryArray[num]._cacheEntry;
entryArray[num]._cacheEntry = null;
memoryCacheStore.Remove(key, key, CacheEntryRemovedReason.Evicted);
}
try
{
this._cacheUsage.MemoryCacheStore.BlockInsert();
lock (this)
{
for (ref6 = iNVALID; !ref6.IsInvalid; ref6 = ref7)
{
entryArray = this._pages[ref6.PageIndex]._entries;
num = ref6.Ref1Index;
ref7 = entryArray[num]._ref1._next;
this._cEntriesInFlush--;
this.AddUsageEntryToFreeList(ref6);
}
this._blockReduce = false;
this.Reduce();
}
}
finally
{
this._cacheUsage.MemoryCacheStore.UnblockInsert();
}
return(num2);
}
internal void Set(string key,
object value,
Collection <ChangeMonitor> changeMonitors,
DateTimeOffset absoluteExpiration,
TimeSpan slidingExpiration,
CacheEntryUpdateCallback onUpdateCallback)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
if (changeMonitors == null &&
absoluteExpiration == ObjectCache.InfiniteAbsoluteExpiration &&
slidingExpiration == ObjectCache.NoSlidingExpiration)
{
throw new ArgumentException(SR.Invalid_argument_combination);
}
if (onUpdateCallback == null)
{
throw new ArgumentNullException(nameof(onUpdateCallback));
}
if (IsDisposed)
{
if (changeMonitors != null)
{
foreach (ChangeMonitor monitor in changeMonitors)
{
if (monitor != null)
{
monitor.Dispose();
}
}
}
return;
}
// Insert updatable cache entry
MemoryCacheKey cacheKey = new MemoryCacheKey(key);
MemoryCacheStore store = GetStore(cacheKey);
MemoryCacheEntry cacheEntry = new MemoryCacheEntry(key,
value,
ObjectCache.InfiniteAbsoluteExpiration,
ObjectCache.NoSlidingExpiration,
CacheItemPriority.NotRemovable,
null,
null,
this);
store.Set(cacheKey, cacheEntry);
// Ensure the sentinel depends on its updatable entry
string[] cacheKeys = { key };
ChangeMonitor expensiveObjectDep = CreateCacheEntryChangeMonitor(cacheKeys);
if (changeMonitors == null)
{
changeMonitors = new Collection <ChangeMonitor>();
}
changeMonitors.Add(expensiveObjectDep);
// Insert sentinel entry for the updatable cache entry
MemoryCacheKey sentinelCacheKey = new MemoryCacheKey("OnUpdateSentinel" + key);
MemoryCacheStore sentinelStore = GetStore(sentinelCacheKey);
MemoryCacheEntry sentinelCacheEntry = new MemoryCacheEntry(sentinelCacheKey.Key,
new SentinelEntry(key, expensiveObjectDep, onUpdateCallback),
absoluteExpiration,
slidingExpiration,
CacheItemPriority.NotRemovable,
changeMonitors,
s_sentinelRemovedCallback,
this);
sentinelStore.Set(sentinelCacheKey, sentinelCacheEntry);
cacheEntry.ConfigureUpdateSentinel(sentinelStore, sentinelCacheEntry);
}
internal int FlushUnderUsedItems(int maxFlush, bool force)
{
if (_cEntriesInUse == 0)
{
return(0);
}
Debug.Assert(maxFlush > 0, "maxFlush is not greater than 0, instead is " + maxFlush);
Debug.Assert(_cEntriesInFlush == 0, "_cEntriesInFlush == 0");
UsageEntryRef inFlushHead = UsageEntryRef.INVALID;
UsageEntryRef prev, prevNext;
DateTime utcDate;
UsageEntry[] entries;
int entryIndex;
MemoryCacheEntry cacheEntry;
int flushed = 0;
try
{
_cacheUsage.MemoryCacheStore.BlockInsert();
lock (this)
{
Debug.Assert(_blockReduce == false, "_blockReduce == false");
if (_cEntriesInUse == 0)
{
return(0);
}
DateTime utcNow = DateTime.UtcNow;
for (prev = _lastRefTail; _cEntriesInFlush < maxFlush && !prev.IsInvalid; prev = prevNext)
{
Debug.Assert(_cEntriesInUse > 0, "_cEntriesInUse > 0");
prevNext = (_pages[(prev.PageIndex)]._entries)[prev.Ref2Index]._ref2._prev;
while (prevNext.IsRef1)
{
prevNext = (_pages[(prevNext.PageIndex)]._entries)[prevNext.Ref1Index]._ref1._prev;
}
entries = (_pages[(prev.PageIndex)]._entries);
entryIndex = prev.Ref2Index;
if (!force)
{
utcDate = entries[entryIndex]._utcDate;
Debug.Assert(utcDate != DateTime.MinValue, "utcDate != DateTime.MinValue");
if (utcNow - utcDate <= CacheUsage.NEWADD_INTERVAL && utcNow >= utcDate)
{
continue;
}
}
UsageEntryRef prev1 = (new UsageEntryRef((prev).PageIndex, (prev).Ref2Index));
cacheEntry = entries[entryIndex]._cacheEntry;
Debug.Assert(cacheEntry.UsageEntryRef == prev1, "cacheEntry.UsageEntryRef == prev1");
Dbg.Trace("CacheUsageFlushUnderUsedItem", "Flushing underused items, item=" + cacheEntry.Key + ", bucket=" + _bucket);
cacheEntry.UsageEntryRef = UsageEntryRef.INVALID;
RemoveEntryFromLastRefList(prev1);
entries[entryIndex]._ref1._next = inFlushHead;
inFlushHead = prev1;
flushed++;
_cEntriesInFlush++;
}
if (flushed == 0)
{
Dbg.Trace("CacheUsageFlushTotal", "Flush(" + maxFlush + "," + force + ") removed " + flushed +
" underused items; Time=" + DateTime.Now.ToString("o", CultureInfo.InvariantCulture));
return(0);
}
_blockReduce = true;
}
}
finally
{
_cacheUsage.MemoryCacheStore.UnblockInsert();
}
Debug.Assert(!inFlushHead.IsInvalid, "!inFlushHead.IsInvalid");
MemoryCacheStore cacheStore = _cacheUsage.MemoryCacheStore;
UsageEntryRef current = inFlushHead;
UsageEntryRef next;
while (!current.IsInvalid)
{
entries = (_pages[(current.PageIndex)]._entries);
entryIndex = current.Ref1Index;
next = entries[entryIndex]._ref1._next;
cacheEntry = entries[entryIndex]._cacheEntry;
entries[entryIndex]._cacheEntry = null;
Debug.Assert(cacheEntry.UsageEntryRef.IsInvalid, "cacheEntry.UsageEntryRef.IsInvalid");
cacheStore.Remove(cacheEntry, cacheEntry, CacheEntryRemovedReason.Evicted);
current = next;
}
try
{
_cacheUsage.MemoryCacheStore.BlockInsert();
lock (this)
{
current = inFlushHead;
while (!current.IsInvalid)
{
entries = (_pages[(current.PageIndex)]._entries);
entryIndex = current.Ref1Index;
next = entries[entryIndex]._ref1._next;
_cEntriesInFlush--;
AddUsageEntryToFreeList(current);
current = next;
}
Debug.Assert(_cEntriesInFlush == 0, "_cEntriesInFlush == 0");
_blockReduce = false;
Reduce();
Dbg.Trace("CacheUsageFlushTotal", "Flush(" + maxFlush + "," + force + ") removed " + flushed +
" underused items; Time=" + DateTime.Now.ToString("o", CultureInfo.InvariantCulture));
}
}
finally
{
_cacheUsage.MemoryCacheStore.UnblockInsert();
}
return(flushed);
}
protected CacheEntryCollection(MemoryCacheStore store, ICacheEntryHelper helper)
{
this.store = store;
this.helper = helper;
entries = new SortedSet <MemoryCacheEntry> (helper);
}
internal int FlushExpiredItems(DateTime utcNow, bool useInsertBlock)
{
ExpiresEntry[] entryArray;
int index;
MemoryCacheEntry entry;
ExpiresEntryRef ref3;
ExpiresEntryRef ref4;
if ((this._cEntriesInUse == 0) || (this.GetExpiresCount(utcNow) == 0))
{
return(0);
}
ExpiresEntryRef iNVALID = ExpiresEntryRef.INVALID;
int num2 = 0;
try
{
if (useInsertBlock)
{
this._cacheExpires.MemoryCacheStore.BlockInsert();
}
lock (this)
{
if ((this._cEntriesInUse == 0) || (this.GetExpiresCount(utcNow) == 0))
{
return(0);
}
this.ResetCounts(utcNow);
int num3 = this._cPagesInUse;
for (int i = 0; i < this._pages.Length; i++)
{
entryArray = this._pages[i]._entries;
if (entryArray != null)
{
int num5 = 0x7f - entryArray[0]._cFree;
for (int j = 1; j < entryArray.Length; j++)
{
entry = entryArray[j]._cacheEntry;
if (entry != null)
{
if (entryArray[j]._utcExpires > utcNow)
{
this.AddCount(entryArray[j]._utcExpires);
}
else
{
entry.ExpiresBucket = 0xff;
entry.ExpiresEntryRef = ExpiresEntryRef.INVALID;
entryArray[j]._cFree = 1;
entryArray[j]._next = iNVALID;
iNVALID = new ExpiresEntryRef(i, j);
num2++;
this._cEntriesInFlush++;
}
num5--;
if (num5 == 0)
{
break;
}
}
}
num3--;
if (num3 == 0)
{
break;
}
}
}
if (num2 == 0)
{
return(0);
}
this._blockReduce = true;
}
}
finally
{
if (useInsertBlock)
{
this._cacheExpires.MemoryCacheStore.UnblockInsert();
}
}
MemoryCacheStore memoryCacheStore = this._cacheExpires.MemoryCacheStore;
for (ref3 = iNVALID; !ref3.IsInvalid; ref3 = ref4)
{
entryArray = this._pages[ref3.PageIndex]._entries;
index = ref3.Index;
ref4 = entryArray[index]._next;
entry = entryArray[index]._cacheEntry;
entryArray[index]._cacheEntry = null;
memoryCacheStore.Remove(entry, entry, CacheEntryRemovedReason.Expired);
}
try
{
if (useInsertBlock)
{
this._cacheExpires.MemoryCacheStore.BlockInsert();
}
lock (this)
{
for (ref3 = iNVALID; !ref3.IsInvalid; ref3 = ref4)
{
entryArray = this._pages[ref3.PageIndex]._entries;
index = ref3.Index;
ref4 = entryArray[index]._next;
this._cEntriesInFlush--;
this.AddExpiresEntryToFreeList(ref3);
}
this._blockReduce = false;
this.Reduce();
}
}
finally
{
if (useInsertBlock)
{
this._cacheExpires.MemoryCacheStore.UnblockInsert();
}
}
return(num2);
}
public CacheExpires (MemoryCacheStore store)
: base (store, helper)
{
}
// Associates this entry with an update sentinel. If this entry has a sliding expiration, we need to
// touch the sentinel so that it doesn't expire.
internal void ConfigureUpdateSentinel(MemoryCacheStore sentinelStore, MemoryCacheEntry sentinelEntry) {
lock (this) {
if (_fields == null) {
_fields = new SeldomUsedFields();
}
_fields._updateSentinel = Tuple.Create(sentinelStore, sentinelEntry);
}
}
public CacheExpires(MemoryCacheStore store)
: base(store, helper)
{
}