public void Insert(object key, object value, DateTime expirationDate, TimeSpan slidingExpirationTime)
{
_itemsLock.EnterWriteLock();
try
{
_items[key] = new WCFCacheItem(value, expirationDate, slidingExpirationTime);
}
finally
{
_itemsLock.ExitWriteLock();
}
}
public void Insert(object key, object value)
{
_itemsLock.EnterWriteLock();
try
{
_items[key] = new WCFCacheItem(value);
}
finally
{
_itemsLock.ExitWriteLock();
}
}
public object this[object key]
{
get
{
if (key == null)
{
return(null);
}
_itemsLock.EnterUpgradeableReadLock();
try
{
WCFCacheItem res = (WCFCacheItem)_items[key];
if (res != null)
{
if (res.SlidingExpirationTime.TotalMilliseconds > 0)
{
_itemsLock.EnterWriteLock();
try
{
res.LastAccessTime = DateTime.Now;
}
finally
{
_itemsLock.ExitWriteLock();
}
}
return(res.ItemValue);
}
else
{
return(null);
}
}
finally
{
_itemsLock.ExitUpgradeableReadLock();
}
}
set
{
_itemsLock.EnterWriteLock();
try
{
_items[key] = new WCFCacheItem(value);
}
finally
{
_itemsLock.ExitWriteLock();
}
}
}
private void CacherefreshTimerCallback(object state)
{
_itemsLock.EnterUpgradeableReadLock();
try
{
Dictionary <object, WCFCacheItem> delItems = new Dictionary <object, WCFCacheItem>();
DateTime dtNow = DateTime.Now;
foreach (DictionaryEntry de in _items)
{
WCFCacheItem ci = (WCFCacheItem)de.Value;
if (ci.ExpirationDate < dtNow)
{
delItems.Add(de.Key, ci);
}
else
{
if (ci.SlidingExpirationTime.TotalMilliseconds > 0)
{
if (dtNow.Subtract(ci.LastAccessTime).TotalMilliseconds > ci.SlidingExpirationTime.TotalMilliseconds)
{
delItems.Add(de.Key, ci);
}
}
}
}
if (delItems.Count > 0)
{
_itemsLock.EnterWriteLock();
try
{
foreach (KeyValuePair <object, WCFCacheItem> kvp in delItems)
{
if (_items.ContainsKey(kvp.Key))
{
_items.Remove(kvp.Key);
}
}
}
finally
{
_itemsLock.ExitWriteLock();
}
}
}
finally
{
_itemsLock.ExitUpgradeableReadLock();
}
}
public void Insert(object key, object value, int Minutes)
{
DateTime expirationDate = DateTime.Now.AddMinutes(Minutes);
_itemsLock.EnterWriteLock();
try
{
_items[key] = new WCFCacheItem(value, expirationDate);
}
finally
{
_itemsLock.ExitWriteLock();
}
}
public void Insert(object key, object value, DateTime expirationDate, TimeSpan slidingExpirationTime)
{
_itemsLock.EnterWriteLock();
try
{
_items[key] = new WCFCacheItem(value, expirationDate, slidingExpirationTime);
}
finally
{
_itemsLock.ExitWriteLock();
}
}
public void Insert(object key, object value, int Minutes)
{
DateTime expirationDate = DateTime.Now.AddMinutes(Minutes);
_itemsLock.EnterWriteLock();
try
{
_items[key] = new WCFCacheItem(value, expirationDate);
}
finally
{
_itemsLock.ExitWriteLock();
}
}
public void Insert(object key, object value)
{
_itemsLock.EnterWriteLock();
try
{
_items[key] = new WCFCacheItem(value);
}
finally
{
_itemsLock.ExitWriteLock();
}
}
public object this[object key]
{
get
{
if (key == null)
return null;
_itemsLock.EnterUpgradeableReadLock();
try
{
WCFCacheItem res = (WCFCacheItem)_items[key];
if (res != null)
{
if (res.SlidingExpirationTime.TotalMilliseconds > 0)
{
_itemsLock.EnterWriteLock();
try
{
res.LastAccessTime = DateTime.Now;
}
finally
{
_itemsLock.ExitWriteLock();
}
}
return res.ItemValue;
}
else
{
return null;
}
}
finally
{
_itemsLock.ExitUpgradeableReadLock();
}
}
set
{
_itemsLock.EnterWriteLock();
try
{
_items[key] = new WCFCacheItem(value);
}
finally
{
_itemsLock.ExitWriteLock();
}
}
}
