bool ExpireIfNeeded(string key, MemoryCacheEntry entry, bool needsLock = true, CacheEntryRemovedReason reason = CacheEntryRemovedReason.Expired)
{
bool locked = false;
try {
if (entry.IsExpired)
{
if (needsLock)
{
cache_lock.EnterWriteLock();
locked = true;
}
cache.Remove(key);
perfCounters.Decrement(MemoryCachePerformanceCounters.CACHE_ENTRIES);
entry.Removed(owner, CacheEntryRemovedReason.Expired);
return(true);
}
} finally {
if (locked)
{
cache_lock.ExitWriteLock();
}
}
return(false);
}
// NOTE: this must be called with the write lock held
void DoRemoveEntry(MemoryCacheEntry entry, bool updateLRU = true, string key = null, CacheEntryRemovedReason reason = CacheEntryRemovedReason.Removed)
{
if (key == null)
{
key = entry.Key;
}
cache.Remove(key);
if (updateLRU)
{
lru.Remove(entry);
}
perfCounters.Decrement(MemoryCachePerformanceCounters.CACHE_ENTRIES);
entry.Removed(owner, reason);
}
bool ExpireIfNeeded (string key, MemoryCacheEntry entry, bool needsLock = true, CacheEntryRemovedReason reason = CacheEntryRemovedReason.Expired)
{
bool locked = false;
try {
if (entry.IsExpired) {
if (needsLock) {
cache_lock.EnterWriteLock ();
locked = true;
}
cache.Remove (key);
perfCounters.Decrement (MemoryCachePerformanceCounters.CACHE_ENTRIES);
entry.Removed (owner, CacheEntryRemovedReason.Expired);
return true;
}
} finally {
if (locked)
cache_lock.ExitWriteLock ();
}
return false;
}
// NOTE: this must be called with the write lock held
void DoRemoveEntry (MemoryCacheEntry entry, bool updateLRU = true, string key = null, CacheEntryRemovedReason reason = CacheEntryRemovedReason.Removed)
{
if (key == null)
key = entry.Key;
cache.Remove (key);
if (updateLRU)
lru.Remove (entry);
perfCounters.Decrement (MemoryCachePerformanceCounters.CACHE_ENTRIES);
entry.Removed (owner, reason);
}