object _onRemovedTargets; /* targets of OnRemove notification */
/*
* ctor.
*/
internal CacheEntry(
String key,
Object value,
CacheDependency dependency,
CacheItemRemovedCallback onRemovedHandler,
DateTime utcAbsoluteExpiration,
TimeSpan slidingExpiration,
CacheItemPriority priority,
bool isPublic) :
base(key, isPublic)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
if (slidingExpiration < TimeSpan.Zero || OneYear < slidingExpiration)
{
throw new ArgumentOutOfRangeException("slidingExpiration");
}
if (utcAbsoluteExpiration != Cache.NoAbsoluteExpiration && slidingExpiration != Cache.NoSlidingExpiration)
{
throw new ArgumentException(SR.GetString(SR.Invalid_expiration_combination));
}
if (priority < CacheItemPriorityMin || CacheItemPriorityMax < priority)
{
throw new ArgumentOutOfRangeException("priority");
}
_value = value;
_dependency = dependency;
_onRemovedTargets = onRemovedHandler;
_utcCreated = DateTime.UtcNow;
_slidingExpiration = slidingExpiration;
if (_slidingExpiration > TimeSpan.Zero)
{
_utcExpires = _utcCreated + _slidingExpiration;
}
else
{
_utcExpires = utcAbsoluteExpiration;
}
_expiresEntryRef = ExpiresEntryRef.INVALID;
_expiresBucket = 0xff;
_usageEntryRef = UsageEntryRef.INVALID;
if (priority == CacheItemPriority.NotRemovable)
{
_usageBucket = 0xff;
}
else
{
_usageBucket = (byte)(priority - 1);
}
}
internal void RemoveCacheEntry(CacheEntry cacheEntry)
{
lock (this)
{
UsageEntryRef usageEntryRef = cacheEntry.UsageEntryRef;
if (!usageEntryRef.IsInvalid)
{
UsageEntry[] entryArray = this._pages[usageEntryRef.PageIndex]._entries;
int index = usageEntryRef.Ref1Index;
cacheEntry.UsageEntryRef = UsageEntryRef.INVALID;
entryArray[index]._cacheEntry = null;
this.RemoveEntryFromLastRefList(usageEntryRef);
this.AddUsageEntryToFreeList(usageEntryRef);
this.Reduce();
}
}
}
private void AddUsageEntryToFreeList(UsageEntryRef entryRef)
{
UsageEntry[] entryArray = this._pages[entryRef.PageIndex]._entries;
int index = entryRef.Ref1Index;
entryArray[index]._utcDate = DateTime.MinValue;
entryArray[index]._ref1._prev = UsageEntryRef.INVALID;
entryArray[index]._ref2._next = UsageEntryRef.INVALID;
entryArray[index]._ref2._prev = UsageEntryRef.INVALID;
entryArray[index]._ref1._next = entryArray[0]._ref1._next;
entryArray[0]._ref1._next = entryRef;
this._cEntriesInUse--;
int pageIndex = entryRef.PageIndex;
entryArray[0]._cFree++;
if (entryArray[0]._cFree == 1)
{
this.AddToListHead(pageIndex, ref this._freeEntryList);
}
else if (entryArray[0]._cFree == 0x7f)
{
this.RemovePage(pageIndex);
}
}
internal void UpdateCacheEntry(CacheEntry cacheEntry)
{
lock (this)
{
UsageEntryRef usageEntryRef = cacheEntry.UsageEntryRef;
if (!usageEntryRef.IsInvalid)
{
UsageEntry[] entryArray = this._pages[usageEntryRef.PageIndex]._entries;
int index = usageEntryRef.Ref1Index;
UsageEntryRef ref3 = new UsageEntryRef(usageEntryRef.PageIndex, -usageEntryRef.Ref1Index);
UsageEntryRef ref4 = entryArray[index]._ref2._prev;
UsageEntryRef ref5 = entryArray[index]._ref2._next;
if (ref4.IsRef1)
{
this._pages[ref4.PageIndex]._entries[ref4.Ref1Index]._ref1._next = ref5;
}
else if (ref4.IsRef2)
{
this._pages[ref4.PageIndex]._entries[ref4.Ref2Index]._ref2._next = ref5;
}
else
{
this._lastRefHead = ref5;
}
if (ref5.IsRef1)
{
this._pages[ref5.PageIndex]._entries[ref5.Ref1Index]._ref1._prev = ref4;
}
else if (ref5.IsRef2)
{
this._pages[ref5.PageIndex]._entries[ref5.Ref2Index]._ref2._prev = ref4;
}
else
{
this._lastRefTail = ref4;
}
if (this._addRef2Head == ref3)
{
this._addRef2Head = ref5;
}
entryArray[index]._ref2 = entryArray[index]._ref1;
ref4 = entryArray[index]._ref2._prev;
ref5 = entryArray[index]._ref2._next;
if (ref4.IsRef1)
{
this._pages[ref4.PageIndex]._entries[ref4.Ref1Index]._ref1._next = ref3;
}
else if (ref4.IsRef2)
{
this._pages[ref4.PageIndex]._entries[ref4.Ref2Index]._ref2._next = ref3;
}
else
{
this._lastRefHead = ref3;
}
if (ref5.IsRef1)
{
this._pages[ref5.PageIndex]._entries[ref5.Ref1Index]._ref1._prev = ref3;
}
else if (ref5.IsRef2)
{
this._pages[ref5.PageIndex]._entries[ref5.Ref2Index]._ref2._prev = ref3;
}
else
{
this._lastRefTail = ref3;
}
entryArray[index]._ref1._prev = UsageEntryRef.INVALID;
entryArray[index]._ref1._next = this._lastRefHead;
if (this._lastRefHead.IsRef1)
{
this._pages[this._lastRefHead.PageIndex]._entries[this._lastRefHead.Ref1Index]._ref1._prev = usageEntryRef;
}
else if (this._lastRefHead.IsRef2)
{
this._pages[this._lastRefHead.PageIndex]._entries[this._lastRefHead.Ref2Index]._ref2._prev = usageEntryRef;
}
else
{
this._lastRefTail = usageEntryRef;
}
this._lastRefHead = usageEntryRef;
}
}
}
private void RemoveEntryFromLastRefList(UsageEntryRef entryRef)
{
UsageEntry[] entryArray = this._pages[entryRef.PageIndex]._entries;
int index = entryRef.Ref1Index;
UsageEntryRef ref2 = entryArray[index]._ref1._prev;
UsageEntryRef ref3 = entryArray[index]._ref1._next;
if (ref2.IsRef1)
{
this._pages[ref2.PageIndex]._entries[ref2.Ref1Index]._ref1._next = ref3;
}
else if (ref2.IsRef2)
{
this._pages[ref2.PageIndex]._entries[ref2.Ref2Index]._ref2._next = ref3;
}
else
{
this._lastRefHead = ref3;
}
if (ref3.IsRef1)
{
this._pages[ref3.PageIndex]._entries[ref3.Ref1Index]._ref1._prev = ref2;
}
else if (ref3.IsRef2)
{
this._pages[ref3.PageIndex]._entries[ref3.Ref2Index]._ref2._prev = ref2;
}
else
{
this._lastRefTail = ref2;
}
ref2 = entryArray[index]._ref2._prev;
ref3 = entryArray[index]._ref2._next;
UsageEntryRef ref4 = new UsageEntryRef(entryRef.PageIndex, -entryRef.Ref1Index);
if (ref2.IsRef1)
{
this._pages[ref2.PageIndex]._entries[ref2.Ref1Index]._ref1._next = ref3;
}
else if (ref2.IsRef2)
{
this._pages[ref2.PageIndex]._entries[ref2.Ref2Index]._ref2._next = ref3;
}
else
{
this._lastRefHead = ref3;
}
if (ref3.IsRef1)
{
this._pages[ref3.PageIndex]._entries[ref3.Ref1Index]._ref1._prev = ref2;
}
else if (ref3.IsRef2)
{
this._pages[ref3.PageIndex]._entries[ref3.Ref2Index]._ref2._prev = ref2;
}
else
{
this._lastRefTail = ref2;
}
if (this._addRef2Head == ref4)
{
this._addRef2Head = ref3;
}
}
private void Reduce()
{
int num4;
if ((this._cEntriesInUse >= this._minEntriesInUse) || this._blockReduce)
{
return;
}
int num = 0x3f;
int num2 = this._freeEntryList._tail;
int index = this._freeEntryList._head;
Label_0032:
num4 = this._pages[index]._pageNext;
if (this._pages[index]._entries[0]._cFree > num)
{
this.MoveToListTail(index, ref this._freeEntryList);
}
else
{
this.MoveToListHead(index, ref this._freeEntryList);
}
if (index != num2)
{
index = num4;
goto Label_0032;
}
while (this._freeEntryList._tail != -1)
{
UsageEntry[] entryArray = this._pages[this._freeEntryList._tail]._entries;
int num5 = ((this._cPagesInUse * 0x7f) - entryArray[0]._cFree) - this._cEntriesInUse;
if (num5 < (0x7f - entryArray[0]._cFree))
{
return;
}
for (int i = 1; i < entryArray.Length; i++)
{
if (entryArray[i]._cacheEntry != null)
{
UsageEntryRef freeUsageEntry = this.GetFreeUsageEntry();
UsageEntryRef ref3 = new UsageEntryRef(freeUsageEntry.PageIndex, -freeUsageEntry.Ref1Index);
UsageEntryRef ref4 = new UsageEntryRef(this._freeEntryList._tail, i);
UsageEntryRef ref5 = new UsageEntryRef(ref4.PageIndex, -ref4.Ref1Index);
entryArray[i]._cacheEntry.UsageEntryRef = freeUsageEntry;
UsageEntry[] entryArray2 = this._pages[freeUsageEntry.PageIndex]._entries;
entryArray2[freeUsageEntry.Ref1Index] = entryArray[i];
entryArray[0]._cFree++;
UsageEntryRef ref6 = entryArray2[freeUsageEntry.Ref1Index]._ref1._prev;
UsageEntryRef ref7 = entryArray2[freeUsageEntry.Ref1Index]._ref1._next;
if (ref7 == ref5)
{
ref7 = ref3;
}
if (ref6.IsRef1)
{
this._pages[ref6.PageIndex]._entries[ref6.Ref1Index]._ref1._next = freeUsageEntry;
}
else if (ref6.IsRef2)
{
this._pages[ref6.PageIndex]._entries[ref6.Ref2Index]._ref2._next = freeUsageEntry;
}
else
{
this._lastRefHead = freeUsageEntry;
}
if (ref7.IsRef1)
{
this._pages[ref7.PageIndex]._entries[ref7.Ref1Index]._ref1._prev = freeUsageEntry;
}
else if (ref7.IsRef2)
{
this._pages[ref7.PageIndex]._entries[ref7.Ref2Index]._ref2._prev = freeUsageEntry;
}
else
{
this._lastRefTail = freeUsageEntry;
}
ref6 = entryArray2[freeUsageEntry.Ref1Index]._ref2._prev;
if (ref6 == ref4)
{
ref6 = freeUsageEntry;
}
ref7 = entryArray2[freeUsageEntry.Ref1Index]._ref2._next;
if (ref6.IsRef1)
{
this._pages[ref6.PageIndex]._entries[ref6.Ref1Index]._ref1._next = ref3;
}
else if (ref6.IsRef2)
{
this._pages[ref6.PageIndex]._entries[ref6.Ref2Index]._ref2._next = ref3;
}
else
{
this._lastRefHead = ref3;
}
if (ref7.IsRef1)
{
this._pages[ref7.PageIndex]._entries[ref7.Ref1Index]._ref1._prev = ref3;
}
else if (ref7.IsRef2)
{
this._pages[ref7.PageIndex]._entries[ref7.Ref2Index]._ref2._prev = ref3;
}
else
{
this._lastRefTail = ref3;
}
if (this._addRef2Head == ref5)
{
this._addRef2Head = ref3;
}
}
}
this.RemovePage(this._freeEntryList._tail);
}
return;
}
internal void AddCacheEntry(CacheEntry cacheEntry)
{
lock (this)
{
if (this._freeEntryList._head == -1)
{
this.Expand();
}
UsageEntryRef freeUsageEntry = this.GetFreeUsageEntry();
UsageEntryRef ref3 = new UsageEntryRef(freeUsageEntry.PageIndex, -freeUsageEntry.Ref1Index);
cacheEntry.UsageEntryRef = freeUsageEntry;
UsageEntry[] entryArray = this._pages[freeUsageEntry.PageIndex]._entries;
int index = freeUsageEntry.Ref1Index;
entryArray[index]._cacheEntry = cacheEntry;
entryArray[index]._utcDate = DateTime.UtcNow;
entryArray[index]._ref1._prev = UsageEntryRef.INVALID;
entryArray[index]._ref2._next = this._addRef2Head;
if (this._lastRefHead.IsInvalid)
{
entryArray[index]._ref1._next = ref3;
entryArray[index]._ref2._prev = freeUsageEntry;
this._lastRefTail = ref3;
}
else
{
UsageEntryRef iNVALID;
UsageEntryRef ref5;
entryArray[index]._ref1._next = this._lastRefHead;
if (this._lastRefHead.IsRef1)
{
this._pages[this._lastRefHead.PageIndex]._entries[this._lastRefHead.Ref1Index]._ref1._prev = freeUsageEntry;
}
else if (this._lastRefHead.IsRef2)
{
this._pages[this._lastRefHead.PageIndex]._entries[this._lastRefHead.Ref2Index]._ref2._prev = freeUsageEntry;
}
else
{
this._lastRefTail = freeUsageEntry;
}
if (this._addRef2Head.IsInvalid)
{
ref5 = this._lastRefTail;
iNVALID = UsageEntryRef.INVALID;
}
else
{
ref5 = this._pages[this._addRef2Head.PageIndex]._entries[this._addRef2Head.Ref2Index]._ref2._prev;
iNVALID = this._addRef2Head;
}
entryArray[index]._ref2._prev = ref5;
if (ref5.IsRef1)
{
this._pages[ref5.PageIndex]._entries[ref5.Ref1Index]._ref1._next = ref3;
}
else if (ref5.IsRef2)
{
this._pages[ref5.PageIndex]._entries[ref5.Ref2Index]._ref2._next = ref3;
}
else
{
this._lastRefHead = ref3;
}
if (iNVALID.IsRef1)
{
this._pages[iNVALID.PageIndex]._entries[iNVALID.Ref1Index]._ref1._prev = ref3;
}
else if (iNVALID.IsRef2)
{
this._pages[iNVALID.PageIndex]._entries[iNVALID.Ref2Index]._ref2._prev = ref3;
}
else
{
this._lastRefTail = ref3;
}
}
this._lastRefHead = freeUsageEntry;
this._addRef2Head = ref3;
this._cEntriesInUse++;
}
}
internal int FlushUnderUsedItems(int maxFlush, bool force, ref int publicEntriesFlushed, ref int ocEntriesFlushed)
{
UsageEntry[] entryArray;
int num;
CacheEntry entry;
UsageEntryRef ref6;
UsageEntryRef ref7;
if (this._cEntriesInUse == 0)
{
return 0;
}
UsageEntryRef iNVALID = UsageEntryRef.INVALID;
int num2 = 0;
try
{
this._cacheUsage.CacheSingle.BlockInsertIfNeeded();
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);
entry = entryArray[num]._cacheEntry;
entry.UsageEntryRef = UsageEntryRef.INVALID;
if (entry.IsPublic)
{
publicEntriesFlushed++;
}
else if (entry.IsOutputCache)
{
ocEntriesFlushed++;
}
this.RemoveEntryFromLastRefList(entryRef);
entryArray[num]._ref1._next = iNVALID;
iNVALID = entryRef;
num2++;
this._cEntriesInFlush++;
}
if (num2 == 0)
{
return 0;
}
this._blockReduce = true;
}
}
finally
{
this._cacheUsage.CacheSingle.UnblockInsert();
}
CacheSingle cacheSingle = this._cacheUsage.CacheSingle;
for (ref6 = iNVALID; !ref6.IsInvalid; ref6 = ref7)
{
entryArray = this._pages[ref6.PageIndex]._entries;
num = ref6.Ref1Index;
ref7 = entryArray[num]._ref1._next;
entry = entryArray[num]._cacheEntry;
entryArray[num]._cacheEntry = null;
cacheSingle.Remove(entry, CacheItemRemovedReason.Underused);
}
try
{
this._cacheUsage.CacheSingle.BlockInsertIfNeeded();
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.CacheSingle.UnblockInsert();
}
return num2;
}
private void AddUsageEntryToFreeList(UsageEntryRef entryRef)
{
UsageEntry[] entryArray = this._pages[entryRef.PageIndex]._entries;
int index = entryRef.Ref1Index;
entryArray[index]._utcDate = DateTime.MinValue;
entryArray[index]._ref1._prev = UsageEntryRef.INVALID;
entryArray[index]._ref2._next = UsageEntryRef.INVALID;
entryArray[index]._ref2._prev = UsageEntryRef.INVALID;
entryArray[index]._ref1._next = entryArray[0]._ref1._next;
entryArray[0]._ref1._next = entryRef;
this._cEntriesInUse--;
int pageIndex = entryRef.PageIndex;
entryArray[0]._cFree++;
if (entryArray[0]._cFree == 1)
{
this.AddToListHead(pageIndex, ref this._freeEntryList);
}
else if (entryArray[0]._cFree == 0x7f)
{
this.RemovePage(pageIndex);
}
}
internal void UpdateCacheEntry(CacheEntry cacheEntry)
{
lock (this)
{
UsageEntryRef usageEntryRef = cacheEntry.UsageEntryRef;
if (!usageEntryRef.IsInvalid)
{
UsageEntry[] entryArray = this._pages[usageEntryRef.PageIndex]._entries;
int index = usageEntryRef.Ref1Index;
UsageEntryRef ref3 = new UsageEntryRef(usageEntryRef.PageIndex, -usageEntryRef.Ref1Index);
UsageEntryRef ref4 = entryArray[index]._ref2._prev;
UsageEntryRef ref5 = entryArray[index]._ref2._next;
if (ref4.IsRef1)
{
this._pages[ref4.PageIndex]._entries[ref4.Ref1Index]._ref1._next = ref5;
}
else if (ref4.IsRef2)
{
this._pages[ref4.PageIndex]._entries[ref4.Ref2Index]._ref2._next = ref5;
}
else
{
this._lastRefHead = ref5;
}
if (ref5.IsRef1)
{
this._pages[ref5.PageIndex]._entries[ref5.Ref1Index]._ref1._prev = ref4;
}
else if (ref5.IsRef2)
{
this._pages[ref5.PageIndex]._entries[ref5.Ref2Index]._ref2._prev = ref4;
}
else
{
this._lastRefTail = ref4;
}
if (this._addRef2Head == ref3)
{
this._addRef2Head = ref5;
}
entryArray[index]._ref2 = entryArray[index]._ref1;
ref4 = entryArray[index]._ref2._prev;
ref5 = entryArray[index]._ref2._next;
if (ref4.IsRef1)
{
this._pages[ref4.PageIndex]._entries[ref4.Ref1Index]._ref1._next = ref3;
}
else if (ref4.IsRef2)
{
this._pages[ref4.PageIndex]._entries[ref4.Ref2Index]._ref2._next = ref3;
}
else
{
this._lastRefHead = ref3;
}
if (ref5.IsRef1)
{
this._pages[ref5.PageIndex]._entries[ref5.Ref1Index]._ref1._prev = ref3;
}
else if (ref5.IsRef2)
{
this._pages[ref5.PageIndex]._entries[ref5.Ref2Index]._ref2._prev = ref3;
}
else
{
this._lastRefTail = ref3;
}
entryArray[index]._ref1._prev = UsageEntryRef.INVALID;
entryArray[index]._ref1._next = this._lastRefHead;
if (this._lastRefHead.IsRef1)
{
this._pages[this._lastRefHead.PageIndex]._entries[this._lastRefHead.Ref1Index]._ref1._prev = usageEntryRef;
}
else if (this._lastRefHead.IsRef2)
{
this._pages[this._lastRefHead.PageIndex]._entries[this._lastRefHead.Ref2Index]._ref2._prev = usageEntryRef;
}
else
{
this._lastRefTail = usageEntryRef;
}
this._lastRefHead = usageEntryRef;
}
}
}
private void RemoveEntryFromLastRefList(UsageEntryRef entryRef)
{
UsageEntry[] entryArray = this._pages[entryRef.PageIndex]._entries;
int index = entryRef.Ref1Index;
UsageEntryRef ref2 = entryArray[index]._ref1._prev;
UsageEntryRef ref3 = entryArray[index]._ref1._next;
if (ref2.IsRef1)
{
this._pages[ref2.PageIndex]._entries[ref2.Ref1Index]._ref1._next = ref3;
}
else if (ref2.IsRef2)
{
this._pages[ref2.PageIndex]._entries[ref2.Ref2Index]._ref2._next = ref3;
}
else
{
this._lastRefHead = ref3;
}
if (ref3.IsRef1)
{
this._pages[ref3.PageIndex]._entries[ref3.Ref1Index]._ref1._prev = ref2;
}
else if (ref3.IsRef2)
{
this._pages[ref3.PageIndex]._entries[ref3.Ref2Index]._ref2._prev = ref2;
}
else
{
this._lastRefTail = ref2;
}
ref2 = entryArray[index]._ref2._prev;
ref3 = entryArray[index]._ref2._next;
UsageEntryRef ref4 = new UsageEntryRef(entryRef.PageIndex, -entryRef.Ref1Index);
if (ref2.IsRef1)
{
this._pages[ref2.PageIndex]._entries[ref2.Ref1Index]._ref1._next = ref3;
}
else if (ref2.IsRef2)
{
this._pages[ref2.PageIndex]._entries[ref2.Ref2Index]._ref2._next = ref3;
}
else
{
this._lastRefHead = ref3;
}
if (ref3.IsRef1)
{
this._pages[ref3.PageIndex]._entries[ref3.Ref1Index]._ref1._prev = ref2;
}
else if (ref3.IsRef2)
{
this._pages[ref3.PageIndex]._entries[ref3.Ref2Index]._ref2._prev = ref2;
}
else
{
this._lastRefTail = ref2;
}
if (this._addRef2Head == ref4)
{
this._addRef2Head = ref3;
}
}
private void Reduce()
{
int num4;
if ((this._cEntriesInUse >= this._minEntriesInUse) || this._blockReduce)
{
return;
}
int num = 0x3f;
int num2 = this._freeEntryList._tail;
int index = this._freeEntryList._head;
Label_0032:
num4 = this._pages[index]._pageNext;
if (this._pages[index]._entries[0]._cFree > num)
{
this.MoveToListTail(index, ref this._freeEntryList);
}
else
{
this.MoveToListHead(index, ref this._freeEntryList);
}
if (index != num2)
{
index = num4;
goto Label_0032;
}
while (this._freeEntryList._tail != -1)
{
UsageEntry[] entryArray = this._pages[this._freeEntryList._tail]._entries;
int num5 = ((this._cPagesInUse * 0x7f) - entryArray[0]._cFree) - this._cEntriesInUse;
if (num5 < (0x7f - entryArray[0]._cFree))
{
return;
}
for (int i = 1; i < entryArray.Length; i++)
{
if (entryArray[i]._cacheEntry != null)
{
UsageEntryRef freeUsageEntry = this.GetFreeUsageEntry();
UsageEntryRef ref3 = new UsageEntryRef(freeUsageEntry.PageIndex, -freeUsageEntry.Ref1Index);
UsageEntryRef ref4 = new UsageEntryRef(this._freeEntryList._tail, i);
UsageEntryRef ref5 = new UsageEntryRef(ref4.PageIndex, -ref4.Ref1Index);
entryArray[i]._cacheEntry.UsageEntryRef = freeUsageEntry;
UsageEntry[] entryArray2 = this._pages[freeUsageEntry.PageIndex]._entries;
entryArray2[freeUsageEntry.Ref1Index] = entryArray[i];
entryArray[0]._cFree++;
UsageEntryRef ref6 = entryArray2[freeUsageEntry.Ref1Index]._ref1._prev;
UsageEntryRef ref7 = entryArray2[freeUsageEntry.Ref1Index]._ref1._next;
if (ref7 == ref5)
{
ref7 = ref3;
}
if (ref6.IsRef1)
{
this._pages[ref6.PageIndex]._entries[ref6.Ref1Index]._ref1._next = freeUsageEntry;
}
else if (ref6.IsRef2)
{
this._pages[ref6.PageIndex]._entries[ref6.Ref2Index]._ref2._next = freeUsageEntry;
}
else
{
this._lastRefHead = freeUsageEntry;
}
if (ref7.IsRef1)
{
this._pages[ref7.PageIndex]._entries[ref7.Ref1Index]._ref1._prev = freeUsageEntry;
}
else if (ref7.IsRef2)
{
this._pages[ref7.PageIndex]._entries[ref7.Ref2Index]._ref2._prev = freeUsageEntry;
}
else
{
this._lastRefTail = freeUsageEntry;
}
ref6 = entryArray2[freeUsageEntry.Ref1Index]._ref2._prev;
if (ref6 == ref4)
{
ref6 = freeUsageEntry;
}
ref7 = entryArray2[freeUsageEntry.Ref1Index]._ref2._next;
if (ref6.IsRef1)
{
this._pages[ref6.PageIndex]._entries[ref6.Ref1Index]._ref1._next = ref3;
}
else if (ref6.IsRef2)
{
this._pages[ref6.PageIndex]._entries[ref6.Ref2Index]._ref2._next = ref3;
}
else
{
this._lastRefHead = ref3;
}
if (ref7.IsRef1)
{
this._pages[ref7.PageIndex]._entries[ref7.Ref1Index]._ref1._prev = ref3;
}
else if (ref7.IsRef2)
{
this._pages[ref7.PageIndex]._entries[ref7.Ref2Index]._ref2._prev = ref3;
}
else
{
this._lastRefTail = ref3;
}
if (this._addRef2Head == ref5)
{
this._addRef2Head = ref3;
}
}
}
this.RemovePage(this._freeEntryList._tail);
}
return;
}
internal void AddCacheEntry(CacheEntry cacheEntry)
{
lock (this)
{
if (this._freeEntryList._head == -1)
{
this.Expand();
}
UsageEntryRef freeUsageEntry = this.GetFreeUsageEntry();
UsageEntryRef ref3 = new UsageEntryRef(freeUsageEntry.PageIndex, -freeUsageEntry.Ref1Index);
cacheEntry.UsageEntryRef = freeUsageEntry;
UsageEntry[] entryArray = this._pages[freeUsageEntry.PageIndex]._entries;
int index = freeUsageEntry.Ref1Index;
entryArray[index]._cacheEntry = cacheEntry;
entryArray[index]._utcDate = DateTime.UtcNow;
entryArray[index]._ref1._prev = UsageEntryRef.INVALID;
entryArray[index]._ref2._next = this._addRef2Head;
if (this._lastRefHead.IsInvalid)
{
entryArray[index]._ref1._next = ref3;
entryArray[index]._ref2._prev = freeUsageEntry;
this._lastRefTail = ref3;
}
else
{
UsageEntryRef iNVALID;
UsageEntryRef ref5;
entryArray[index]._ref1._next = this._lastRefHead;
if (this._lastRefHead.IsRef1)
{
this._pages[this._lastRefHead.PageIndex]._entries[this._lastRefHead.Ref1Index]._ref1._prev = freeUsageEntry;
}
else if (this._lastRefHead.IsRef2)
{
this._pages[this._lastRefHead.PageIndex]._entries[this._lastRefHead.Ref2Index]._ref2._prev = freeUsageEntry;
}
else
{
this._lastRefTail = freeUsageEntry;
}
if (this._addRef2Head.IsInvalid)
{
ref5 = this._lastRefTail;
iNVALID = UsageEntryRef.INVALID;
}
else
{
ref5 = this._pages[this._addRef2Head.PageIndex]._entries[this._addRef2Head.Ref2Index]._ref2._prev;
iNVALID = this._addRef2Head;
}
entryArray[index]._ref2._prev = ref5;
if (ref5.IsRef1)
{
this._pages[ref5.PageIndex]._entries[ref5.Ref1Index]._ref1._next = ref3;
}
else if (ref5.IsRef2)
{
this._pages[ref5.PageIndex]._entries[ref5.Ref2Index]._ref2._next = ref3;
}
else
{
this._lastRefHead = ref3;
}
if (iNVALID.IsRef1)
{
this._pages[iNVALID.PageIndex]._entries[iNVALID.Ref1Index]._ref1._prev = ref3;
}
else if (iNVALID.IsRef2)
{
this._pages[iNVALID.PageIndex]._entries[iNVALID.Ref2Index]._ref2._prev = ref3;
}
else
{
this._lastRefTail = ref3;
}
}
this._lastRefHead = freeUsageEntry;
this._addRef2Head = ref3;
this._cEntriesInUse++;
}
}
internal int FlushUnderUsedItems(int maxFlush, bool force, ref int publicEntriesFlushed, ref int ocEntriesFlushed)
{
UsageEntry[] entryArray;
int num;
CacheEntry entry;
UsageEntryRef ref6;
UsageEntryRef ref7;
if (this._cEntriesInUse == 0)
{
return(0);
}
UsageEntryRef iNVALID = UsageEntryRef.INVALID;
int num2 = 0;
try
{
this._cacheUsage.CacheSingle.BlockInsertIfNeeded();
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);
entry = entryArray[num]._cacheEntry;
entry.UsageEntryRef = UsageEntryRef.INVALID;
if (entry.IsPublic)
{
publicEntriesFlushed++;
}
else if (entry.IsOutputCache)
{
ocEntriesFlushed++;
}
this.RemoveEntryFromLastRefList(entryRef);
entryArray[num]._ref1._next = iNVALID;
iNVALID = entryRef;
num2++;
this._cEntriesInFlush++;
}
if (num2 == 0)
{
return(0);
}
this._blockReduce = true;
}
}
finally
{
this._cacheUsage.CacheSingle.UnblockInsert();
}
CacheSingle cacheSingle = this._cacheUsage.CacheSingle;
for (ref6 = iNVALID; !ref6.IsInvalid; ref6 = ref7)
{
entryArray = this._pages[ref6.PageIndex]._entries;
num = ref6.Ref1Index;
ref7 = entryArray[num]._ref1._next;
entry = entryArray[num]._cacheEntry;
entryArray[num]._cacheEntry = null;
cacheSingle.Remove(entry, CacheItemRemovedReason.Underused);
}
try
{
this._cacheUsage.CacheSingle.BlockInsertIfNeeded();
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.CacheSingle.UnblockInsert();
}
return(num2);
}
static UsageEntryRef()
{
INVALID = new UsageEntryRef(0, 0);
}
object _onRemovedTargets; /* targets of OnRemove notification */
/*
* ctor.
*/
internal CacheEntry(
String key,
Object value,
CacheDependency dependency,
CacheItemRemovedCallback onRemovedHandler,
DateTime utcAbsoluteExpiration,
TimeSpan slidingExpiration,
CacheItemPriority priority,
bool isPublic) :
base(key, isPublic) {
if (value == null) {
throw new ArgumentNullException("value");
}
if (slidingExpiration < TimeSpan.Zero || OneYear < slidingExpiration) {
throw new ArgumentOutOfRangeException("slidingExpiration");
}
if (utcAbsoluteExpiration != Cache.NoAbsoluteExpiration && slidingExpiration != Cache.NoSlidingExpiration) {
throw new ArgumentException(SR.GetString(SR.Invalid_expiration_combination));
}
if (priority < CacheItemPriorityMin || CacheItemPriorityMax < priority) {
throw new ArgumentOutOfRangeException("priority");
}
_value = value;
_dependency = dependency;
_onRemovedTargets = onRemovedHandler;
_utcCreated = DateTime.UtcNow;
_slidingExpiration = slidingExpiration;
if (_slidingExpiration > TimeSpan.Zero) {
_utcExpires = _utcCreated + _slidingExpiration;
}
else {
_utcExpires = utcAbsoluteExpiration;
}
_expiresEntryRef = ExpiresEntryRef.INVALID;
_expiresBucket = 0xff;
_usageEntryRef = UsageEntryRef.INVALID;
if (priority == CacheItemPriority.NotRemovable) {
_usageBucket = 0xff;
}
else {
_usageBucket = (byte) (priority - 1);
}
}
static UsageEntryRef()
{
INVALID = new UsageEntryRef(0, 0);
}
