public int Compare(CacheEntity <T> element, CacheEntity <T> cache)
{
if (cache == null)
{
return(1);
}
if (element == null)
{
return(-1);
}
return(element.element.AcessTime.CompareTo(cache.element.AcessTime));
}
/// <summary>
/// 监测超时
/// </summary>
/// <param name="keys"></param>
private void CheckCacheTime(LinkedList <TKey> keys)
{
if (4 != kvState)
{
return;
}
//
CacheEntity <TValue> entity = null;
long curTime = DateTime.Now.Ticks;
lastWriteTime = long.MaxValue;
int leftTime = config.CacheTime * 1000;
long timeLen = 0;
Parallel.ForEach(keys, (key) =>
{
if (!IsPersistent(key))
{
//非持久元素
if (dicCache.TryGetValue(key, out entity))
{
timeLen = curTime - entity.element.WriteTime;
if (timeLen / ticksMS >= leftTime)
{
//
RemoveEntity <TKey, TValue> element = new RemoveEntity <TKey, TValue>()
{
Key = key, State = 1
};
element.Value = entity.element.Value;
removeEntities.Enqueue(element);
}
else
{
if (lastWriteTime > entity.element.WriteTime)
{
//记录最早的写入
lastWriteTime = entity.element.WriteTime;
}
}
}
}
});
}
public void Add(TKey key, TValue value, int slfTime = -1)
{
if (lazyObject.IsValueCreated)
{
lazyObject.Value.Refresh(key);
}
if (slfTime > -1)
{
SigleEntity <TKey, TValue> sigle = new SigleEntity <TKey, TValue>()
{
Cache = this, CacheTime = slfTime * 1000, Key = key, WriteTime = DateTime.Now.Ticks
};
lazyObject.Value.Add(sigle);
}
switch (kvState)
{
case 1:
{
CacheEntity <WeakReference <object> > entityKV = null;
object outValue = (object)value;
if (dicWeakKV.TryGetValue(key, out entityKV))
{
//更新
entityKV.element.WriteTime = DateTime.Now.Ticks;
entityKV.element.AcessTime = DateTime.Now.Ticks;
entityKV.element.Value = new WeakReference <object>(outValue);
}
else
{
object outKey = (object)key;
entityKV = new CacheEntity <WeakReference <object> >();
entityKV.element = new CacheElement <WeakReference <object> >();
entityKV.element.AcessTime = DateTime.Now.Ticks;
entityKV.element.Hit = 0;
entityKV.element.Value = new WeakReference <object>(outValue);
entityKV.element.WriteTime = DateTime.Now.Ticks;
dicWeakKV.Add(outKey, entityKV);
if (config.UseMemory && (config.Policy == CachePolicy.FIFO || config.Policy == CachePolicy.LRU))
{
stack.Push(key); //记录操作
}
else
{
dicKeys[key] = null; //必须记录KEY
}
//
Interlocked.Increment(ref cacheSize);
}
}
break;
case 2:
{
CacheEntity <TValue> entityK;
if (dicWeakKey.TryGetValue(key, out entityK))
{
entityK.element.WriteTime = DateTime.Now.Ticks;
entityK.element.AcessTime = DateTime.Now.Ticks;
entityK.element.Value = value;
}
else
{
object outK = (object)key;
entityK = new CacheEntity <TValue>();
entityK.element = new CacheElement <TValue>();
entityK.element.AcessTime = DateTime.Now.Ticks;
entityK.element.Hit = 0;
entityK.element.WriteTime = DateTime.Now.Ticks;
entityK.element.Value = value;
dicWeakKey.Add(outK, entityK);
if (config.UseMemory && (config.Policy == CachePolicy.FIFO || CachePolicy.LRU == config.Policy))
{
stack.Push(key);
}
else
{
dicKeys[key] = null;
}
Interlocked.Increment(ref cacheSize);
}
}
break;
case 3:
{
CacheEntity <WeakReference <object> > entityV = null;
object outV = (object)value;
if (dicWeakValue.TryGetValue(key, out entityV))
{
entityV.element.WriteTime = DateTime.Now.Ticks;
entityV.element.AcessTime = DateTime.Now.Ticks;
entityV.element.Value = new WeakReference <object>(outV);
}
else
{
entityV = new CacheEntity <WeakReference <object> >();
entityV.element = new CacheElement <WeakReference <object> >();
entityV.element.AcessTime = DateTime.Now.Ticks;
entityV.element.Hit = 0;
entityV.element.Value = new WeakReference <object>(outV);
entityV.element.WriteTime = DateTime.Now.Ticks;
dicWeakValue[key] = entityV;
if (config.UseMemory)
{
stack.Push(key);
}
Interlocked.Increment(ref cacheSize);
}
}
break;
case 4:
{
CacheEntity <TValue> entity = null;
if (dicCache.TryGetValue(key, out entity))
{
entity.element.WriteTime = DateTime.Now.Ticks;
entity.element.AcessTime = DateTime.Now.Ticks;
entity.element.Value = value;
}
else
{
entity = new CacheEntity <TValue>();
entity.element = new CacheElement <TValue>();
entity.element.AcessTime = DateTime.Now.Ticks;
entity.element.WriteTime = DateTime.Now.Ticks;
entity.element.Hit = 0;
entity.element.Value = value;
dicCache[key] = entity;
if (config.UseMemory)
{
stack.Push(key); //记录操作
}
Interlocked.Increment(ref cacheSize);
}
}
break;
}
CheckPolicy();
//准备持久化
if (dicPersAdd != null)
{
dicPersAdd[key] = value;
}
}
/// <summary>
/// 监测弱引用，包括超时到期
/// </summary>
/// <param name="keys"></param>
private void WeakRef(LinkedList <TKey> keys)
{
if (4 == kvState)
{
return;
}
object item = null;
long curTime = DateTime.Now.Ticks;
TValue value = default(TValue);
CacheEntity <WeakReference <object> > kv = null;
CacheEntity <TValue> entity = null;
lastWriteTime = long.MaxValue;
int leftTime = config.CacheTime * 1000;
Parallel.ForEach(keys, (key) =>
{
if (!IsPersistent(key))
{
//不是持久Key才判断
switch (kvState)
{
case 1:
{
if (dicWeakKV.TryGetValue(key, out kv))
{
if (!kv.element.Value.TryGetTarget(out item))
{
//没有数据了
dicWeakKV.Remove(key);
RemoveEntity <TKey, TValue> element = new RemoveEntity <TKey, TValue>()
{
Key = key, State = 2
};
removeEntities.Enqueue(element);
}
else if ((curTime - kv.element.WriteTime) / ticksMS > leftTime)
{
//
RemoveEntity <TKey, TValue> element = new RemoveEntity <TKey, TValue>()
{
Key = key, State = 1
};
if (TryRemove(key, out value))
{
element.Value = value;
}
removeEntities.Enqueue(element);
}
else
{
if (lastWriteTime > kv.element.WriteTime)
{
//记录最早的写入
lastWriteTime = kv.element.WriteTime;
}
}
}
}
break;
case 3:
{
if (dicWeakValue.TryGetValue(key, out kv))
{
if (!kv.element.Value.TryGetTarget(out item))
{
//没有数据了
dicWeakValue.TryRemove(key, out kv);
RemoveEntity <TKey, TValue> element = new RemoveEntity <TKey, TValue>()
{
Key = key, State = 2
};
removeEntities.Enqueue(element);
}
else if ((curTime - kv.element.WriteTime) / ticksMS > leftTime)
{
if (lazyObject.IsValueCreated)
{
//是否是持久缓存元素
if (!lazyObject.Value.IsPersistent(key))
{
RemoveEntity <TKey, TValue> element = new RemoveEntity <TKey, TValue>()
{
Key = key, State = 1
};
if (TryRemove(key, out value))
{
element.Value = value;
}
removeEntities.Enqueue(element);
}
}
else
{
//
RemoveEntity <TKey, TValue> element = new RemoveEntity <TKey, TValue>()
{
Key = key, State = 1
};
if (TryRemove(key, out value))
{
element.Value = value;
}
removeEntities.Enqueue(element);
}
}
if (lastWriteTime > kv.element.WriteTime)
{
//记录最早的写入
lastWriteTime = kv.element.WriteTime;
}
}
}
break;
case 2:
{
if (dicWeakKey.TryGetValue(key, out entity))
{
//值检查超时
if ((curTime - entity.element.WriteTime) / ticksMS > leftTime)
{
//
RemoveEntity <TKey, TValue> element = new RemoveEntity <TKey, TValue>()
{
Key = key, State = 1
};
if (TryRemove(key, out value))
{
element.Value = value;
}
removeEntities.Enqueue(element);
}
if (lastWriteTime > entity.element.WriteTime)
{
//记录最早的写入
lastWriteTime = entity.element.WriteTime;
}
}
}
break;
}
}
});
}
/// <summary>
/// 移除
/// </summary>
private void RemovePolicyNo()
{
//获取所有Key
LinkedList <TKey> link = null;
if (dicKeys.Count > 0)
{
//记录了Key;
link = new LinkedList <TKey>(dicKeys.Keys);
}
else
{
if (3 == kvState)
{
link = new LinkedList <TKey>(dicWeakValue.Keys);
}
else if (4 == kvState)
{
link = new LinkedList <TKey>(dicCache.Keys);
}
}
WeakRef(link);
CheckCacheTime(link);
//
CacheEntity <WeakReference <object> > entityweak = null;
CacheEntity <WeakReference <object> >[] cacheWeakEntity = null;
CacheEntity <TValue> entity = null;
CacheEntity <TValue>[] cacheEntities = null;
Dictionary <CacheEntity <WeakReference <object> >, TKey> dicWeak = new Dictionary <CacheEntity <WeakReference <object> >, TKey>();
Dictionary <CacheEntity <TValue>, TKey> dic = new Dictionary <CacheEntity <TValue>, TKey>();
int index = 0;
switch (kvState)
{
case 1:
{
cacheWeakEntity = new CacheEntity <WeakReference <object> > [link.Count];
dicWeak = new Dictionary <CacheEntity <WeakReference <object> >, TKey>();
foreach (TKey tkey in link)
{
if (dicWeakKV.TryGetValue(tkey, out entityweak))
{
cacheWeakEntity[index++] = entityweak;
dicWeak[entityweak] = tkey;
}
}
//
List <CacheEntity <WeakReference <object> > > list = SortKeys(cacheWeakEntity);
this.RemovePolicyList(list, dicWeak);
cacheWeakEntity = null;
list.Clear();
dicWeak.Clear();
}
break;
case 3:
{
cacheWeakEntity = new CacheEntity <WeakReference <object> > [link.Count];
dicWeak = new Dictionary <CacheEntity <WeakReference <object> >, TKey>();
foreach (TKey tkey in link)
{
if (dicWeakValue.TryGetValue(tkey, out entityweak))
{
cacheWeakEntity[index++] = entityweak;
dicWeak[entityweak] = tkey;
}
}
//
List <CacheEntity <WeakReference <object> > > list = SortKeys(cacheWeakEntity);
this.RemovePolicyList(list, dicWeak);
list.Clear();
dicWeak.Clear();
cacheWeakEntity = null;
}
break;
case 2:
{
cacheEntities = new CacheEntity <TValue> [link.Count];
foreach (TKey tkey in link)
{
if (dicWeakKey.TryGetValue(tkey, out entity))
{
cacheEntities[index++] = entity;
dic[entity] = tkey;
}
}
List <CacheEntity <TValue> > list = SortKeys(cacheEntities);
this.RemovePolicyList(list, dic);
dicWeak.Clear();
list.Clear();
cacheEntities = null;
}
break;
case 4:
{
cacheEntities = new CacheEntity <TValue> [link.Count];
foreach (TKey tkey in link)
{
if (dicCache.TryGetValue(tkey, out entity))
{
cacheEntities[index++] = entity;
dic[entity] = tkey;
}
}
//
List <CacheEntity <TValue> > list = SortKeys(cacheEntities);
this.RemovePolicyList(list, dic);
//
list.Clear();
dic.Clear();
cacheEntities = null;
}
break;
default:
break;
}
link.Clear();
}
/// <summary>
/// 删除
/// </summary>
/// <param name="key"></param>
/// <param name="value"></param>
/// <returns></returns>
private bool TryRemove(TKey key, out TValue value)
{
value = default(TValue);
bool result = false;
CacheEntity <WeakReference <object> > kv = null;
CacheEntity <TValue> entity = null;
string item = null;
switch (kvState)
{
case 1:
if (dicWeakKV.TryGetValue(key, out kv))
{
dicWeakKV.Remove(key);
result = true;
Interlocked.Decrement(ref cacheSize);
}
else
{
//如果记录了KEY
if (dicKeys.TryRemove(key, out item))
{
Interlocked.Decrement(ref cacheSize);
}
}
break;
case 2:
if (dicWeakKey.TryGetValue(key, out entity))
{
dicWeakKey.Remove(key);
result = true;
Interlocked.Decrement(ref cacheSize);
}
else
{
//如果记录了KEY
if (dicKeys.TryRemove(key, out item))
{
Interlocked.Decrement(ref cacheSize);
}
}
break;
case 3:
if (dicWeakValue.TryRemove(key, out kv))
{
result = true;
Interlocked.Decrement(ref cacheSize);
}
break;
case 4:
if (dicCache.TryRemove(key, out entity))
{
result = true;
Interlocked.Decrement(ref cacheSize);
}
break;
}
CheckPolicy();
return(result);
}
/// <summary>
/// 获取
/// </summary>
/// <param name="key"></param>
/// <param name="value"></param>
/// <returns></returns>
public bool TryGetCache(TKey key, out TValue value)
{
bool r = false;
value = default(TValue);
object v;
switch (kvState)
{
case 1:
{
CacheEntity <WeakReference <object> > entityKV = null;
if (dicWeakKV.TryGetValue(key, out entityKV))
{
if (entityKV.element.Value.TryGetTarget(out v))
{
value = (TValue)v;
entityKV.element.AcessTime = DateTime.Now.Ticks;
entityKV.element.Hit++;
r = true;
}
else
{
//如果value回收
dicWeakKV.Remove(key);
}
}
}
break;
case 2:
{
CacheEntity <TValue> entityK = null;
if (dicWeakKey.TryGetValue(key, out entityK))
{
value = entityK.element.Value;
entityK.element.AcessTime = DateTime.Now.Ticks;
entityK.element.Hit++;
r = true;
}
}
break;
case 3:
{
CacheEntity <WeakReference <object> > entityV = null;
if (dicWeakValue.TryGetValue(key, out entityV))
{
if (entityV.element.Value.TryGetTarget(out v))
{
value = (TValue)v;
entityV.element.AcessTime = DateTime.Now.Ticks;
entityV.element.Hit++;
r = true;
}
else
{
dicWeakValue.TryRemove(key, out entityV);
}
}
}
break;
case 4:
{
CacheEntity <TValue> entity = null;
if (dicCache.TryGetValue(key, out entity))
{
value = entity.element.Value;
entity.element.AcessTime = DateTime.Now.Ticks;
entity.element.Hit++;
r = true;
}
}
break;
}
if (CachePolicy.LRU == config.Policy && config.UseMemory)
{
stack.Push(key);
}
if (!r)
{
//没有找到，监测持久化数据
if (config.FindPers && Store != null && (PersistencePolicy.All == config.PersPolicy || PersistencePolicy.Expire == config.PersPolicy))
{
if (PersItems == null)
{
PersItems = new PersCache <TKey, TValue>();
}
if (!PersItems.TryGetValue(key, out value))
{
if (Store.TryGetValue(key, out value))
{
PersItems.Add(key, value);
r = true;
}
}
else
{
r = true;
}
}
}
CheckPolicy();
return(r);
}
public int Compare(CacheEntity <T> element, CacheEntity <T> cache)
{
return(element.element.WriteTime.CompareTo(cache.element.WriteTime));
}
public bool TryGetCache(TKey key, out TValue value)
{
bool r = false;
value = default(TValue);
object v = null;
switch (kvState)
{
case 1:
{
CacheEntity <WeakReference <object> > entityKV = null;
if (dicWeakKV.TryGetValue(key, out entityKV))
{
if (entityKV.element.Value.TryGetTarget(out v))
{
value = (TValue)v;
entityKV.element.AcessTime = DateTime.Now.Ticks;
entityKV.element.Hit++;
r = true;
}
else
{
//如果value回收
dicWeakKV.Remove(key);
}
}
}
break;
case 2:
{
CacheEntity <TValue> entityK = null;
if (dicWeakKey.TryGetValue(key, out entityK))
{
value = entityK.element.Value;
entityK.element.AcessTime = DateTime.Now.Ticks;
entityK.element.Hit++;
r = true;
}
}
break;
case 3:
{
CacheEntity <WeakReference <object> > entityV = null;
if (dicWeakValue.TryGetValue(key, out entityV))
{
if (entityV.element.Value.TryGetTarget(out v))
{
value = (TValue)v;
entityV.element.AcessTime = DateTime.Now.Ticks;
entityV.element.Hit++;
r = true;
}
else
{
dicWeakValue.TryRemove(key, out entityV);
}
}
}
break;
case 4:
{
CacheEntity <TValue> entity = null;
if (dicCache.TryGetValue(key, out entity))
{
value = entity.element.Value;
entity.element.AcessTime = DateTime.Now.Ticks;
entity.element.Hit++;
r = true;
}
}
break;
}
if (CachePolicy.LRU == config.Policy && config.UseMemory)
{
stack.Push(key);
}
CheckPolicy();
return(r);
}
public int Compare(CacheEntity <T> x, CacheEntity <T> y)
{
return(policy.Compare(x, y));
}
public int Compare(CacheEntity <T> element, CacheEntity <T> cache)
{
return(element.element.Hit.CompareTo(cache.element.Hit));
}