private void removeLock(TKey key, AntiDupLockSlim slim)
{
_slimLock.EnterWriteLock();
try {
slim.UseCount--;
if (slim.UseCount == 0)
{
_lockDict.Remove(key);
slim.Dispose();
}
} finally { _slimLock.ExitWriteLock(); }
}
private AntiDupLockSlim addLock(TKey key)
{
AntiDupLockSlim slim;
_slimLock.EnterWriteLock();
try {
if (_lockDict.TryGetValue(key, out slim) == false)
{
slim = new AntiDupLockSlim();
_lockDict[key] = slim;
}
slim.UseCount++;
} finally { _slimLock.ExitWriteLock(); }
return(slim);
}
/// <summary>
/// 执行
/// </summary>
/// <param name="key">值</param>
/// <param name="factory">执行方法</param>
/// <returns></returns>
public TValue Execute(TKey key, Func <TValue> factory)
{
// 过期时间为0 则不缓存
if (object.Equals(null, key) || _expireTicks == 0L || _maxCount == 0)
{
return(factory());
}
Tuple <long, TValue> tuple;
long lastTicks;
_lock.EnterReadLock();
try {
if (_map.TryGetValue(key, out tuple))
{
if (_expireTicks == -1)
{
return(tuple.Item2);
}
if (tuple.Item1 + _expireTicks > DateTime.Now.Ticks)
{
return(tuple.Item2);
}
}
lastTicks = _lastTicks;
} finally { _lock.ExitReadLock(); }
AntiDupLockSlim slim;
_slimLock.EnterUpgradeableReadLock();
try {
_lock.EnterReadLock();
try {
if (_lastTicks != lastTicks)
{
if (_map.TryGetValue(key, out tuple))
{
if (_expireTicks == -1)
{
return(tuple.Item2);
}
if (tuple.Item1 + _expireTicks > DateTime.Now.Ticks)
{
return(tuple.Item2);
}
}
lastTicks = _lastTicks;
}
} finally { _lock.ExitReadLock(); }
_slimLock.EnterWriteLock();
try {
if (_lockDict.TryGetValue(key, out slim) == false)
{
slim = new AntiDupLockSlim();
_lockDict[key] = slim;
}
slim.UseCount++;
} finally { _slimLock.ExitWriteLock(); }
} finally { _slimLock.ExitUpgradeableReadLock(); }
slim.EnterWriteLock();
try {
_lock.EnterReadLock();
try {
if (_lastTicks != lastTicks && _map.TryGetValue(key, out tuple))
{
if (_expireTicks == -1)
{
return(tuple.Item2);
}
if (tuple.Item1 + _expireTicks > DateTime.Now.Ticks)
{
return(tuple.Item2);
}
}
} finally { _lock.ExitReadLock(); }
var val = factory();
_lock.EnterWriteLock();
try {
_lastTicks = DateTime.Now.Ticks;
_map[key] = Tuple.Create(_lastTicks, val);
if (_maxCount > 0)
{
if (_queue.Contains(key) == false)
{
_queue.Enqueue(key);
if (_queue.Count > _maxCount)
{
_map.Remove(_queue.Dequeue());
}
}
}
} finally { _lock.ExitWriteLock(); }
return(val);
} finally {
slim.ExitWriteLock();
_slimLock.EnterWriteLock();
try {
slim.UseCount--;
if (slim.UseCount == 0)
{
_lockDict.Remove(key);
slim.Dispose();
}
} finally { _slimLock.ExitWriteLock(); }
}
}
/// <summary>
/// 执行
/// </summary>
/// <param name="key">值</param>
/// <param name="factory">执行方法</param>
/// <returns></returns>
public TValue Execute(TKey key, Func <TValue> factory)
{
// 过期时间为0 则不缓存
if (object.Equals(null, key) || _maxCount == 0)
{
return(factory());
}
_lock.EnterReadLock();
TValue tuple;
long lastTicks;
try {
if (_map.TryGetValue(key, out tuple))
{
return(tuple);
}
lastTicks = _lastTicks;
} finally { _lock.ExitReadLock(); }
AntiDupLockSlim slim;
_slimLock.EnterUpgradeableReadLock();
try {
_lock.EnterReadLock();
try {
if (_lastTicks != lastTicks)
{
if (_map.TryGetValue(key, out tuple))
{
return(tuple);
}
lastTicks = _lastTicks;
}
} finally { _lock.ExitReadLock(); }
_slimLock.EnterWriteLock();
try {
if (_lockDict.TryGetValue(key, out slim) == false)
{
slim = new AntiDupLockSlim();
_lockDict[key] = slim;
}
slim.UseCount++;
} finally { _slimLock.ExitWriteLock(); }
} finally {
_slimLock.ExitUpgradeableReadLock();
}
slim.EnterWriteLock();
try {
_lock.EnterReadLock();
try {
if (_lastTicks != lastTicks && _map.TryGetValue(key, out tuple))
{
return(tuple);
}
} finally { _lock.ExitReadLock(); }
var val = factory();
_lock.EnterWriteLock();
try {
_map[key] = val;
_queue.Enqueue(key);
if (_queue.Count > _maxCount)
{
var oldKey = _queue.Dequeue();
_map.Remove(oldKey);
}
} finally { _lock.ExitWriteLock(); }
return(val);
} finally {
slim.ExitWriteLock();
_slimLock.EnterWriteLock();
try {
slim.UseCount--;
if (slim.UseCount == 0)
{
_lockDict.Remove(key);
slim.Dispose();
}
} finally { _slimLock.ExitWriteLock(); }
}
}
/// <summary>
/// 执行
/// </summary>
/// <param name="key"></param>
/// <param name="factory"></param>
/// <returns></returns>
public TValue Execute(TKey key, Func <TValue> factory)
{
if (object.Equals(key, null))
{
return(factory());
}
long lastTicks;
TValue val;
_lock.EnterReadLock();
try {
if (_map.TryGetValue(key, out val))
{
return(val);
}
lastTicks = _lastTicks;
} finally { _lock.ExitReadLock(); }
AntiDupLockSlim slim;
_slimLock.EnterUpgradeableReadLock();
try {
_lock.EnterReadLock();
try {
if (_lastTicks != lastTicks)
{
if (_map.TryGetValue(key, out val))
{
return(val);
}
lastTicks = _lastTicks;
}
} finally { _lock.ExitReadLock(); }
_slimLock.EnterWriteLock();
try {
if (_lockDict.TryGetValue(key, out slim) == false)
{
slim = new AntiDupLockSlim();
_lockDict[key] = slim;
}
slim.UseCount++;
} finally { _slimLock.ExitWriteLock(); }
} finally { _slimLock.ExitUpgradeableReadLock(); }
slim.EnterWriteLock();
try {
_lock.EnterReadLock();
try {
if (_lastTicks != lastTicks && _map.TryGetValue(key, out val))
{
return(val);
}
} finally { _lock.ExitReadLock(); }
val = factory();
_lock.EnterWriteLock();
try {
_lastTicks = DateTime.Now.Ticks;
_map[key] = val;
} finally { _lock.ExitWriteLock(); }
return(val);
} finally {
slim.ExitWriteLock();
_slimLock.EnterWriteLock();
try {
slim.UseCount--;
if (slim.UseCount == 0)
{
_lockDict.Remove(key);
slim.Dispose();
}
} finally { _slimLock.ExitWriteLock(); }
}
}
