private static void ResizePool(SQLiteConnectionPool.PoolQueue queue, bool add)
{
int maxPoolSize = queue.MaxPoolSize;
if (add && maxPoolSize > 0)
{
maxPoolSize--;
}
Queue <WeakReference> weakReferences = queue.Queue;
if (weakReferences == null)
{
return;
}
while (weakReferences.Count > maxPoolSize)
{
WeakReference weakReference = weakReferences.Dequeue();
if (weakReference == null)
{
continue;
}
SQLiteConnectionHandle target = weakReference.Target as SQLiteConnectionHandle;
if (target != null)
{
target.Dispose();
}
GC.KeepAlive(target);
}
}
internal static void ClearAllPools()
{
ISQLiteConnectionPool connectionPool = SQLiteConnectionPool.GetConnectionPool();
if (connectionPool != null)
{
connectionPool.ClearAllPools();
return;
}
lock (SQLiteConnectionPool._syncRoot)
{
foreach (KeyValuePair <string, SQLiteConnectionPool.PoolQueue> keyValuePair in SQLiteConnectionPool._queueList)
{
if (keyValuePair.Value == null)
{
continue;
}
Queue <WeakReference> queue = keyValuePair.Value.Queue;
while (queue.Count > 0)
{
WeakReference weakReference = queue.Dequeue();
if (weakReference == null)
{
continue;
}
SQLiteConnectionHandle target = weakReference.Target as SQLiteConnectionHandle;
if (target != null)
{
target.Dispose();
}
GC.KeepAlive(target);
}
if (SQLiteConnectionPool._poolVersion > keyValuePair.Value.PoolVersion)
{
continue;
}
SQLiteConnectionPool._poolVersion = keyValuePair.Value.PoolVersion + 1;
}
SQLiteConnectionPool._queueList.Clear();
}
}
internal static void ClearPool(string fileName)
{
SQLiteConnectionPool.PoolQueue poolQueue;
ISQLiteConnectionPool connectionPool = SQLiteConnectionPool.GetConnectionPool();
if (connectionPool != null)
{
connectionPool.ClearPool(fileName);
return;
}
lock (SQLiteConnectionPool._syncRoot)
{
if (SQLiteConnectionPool._queueList.TryGetValue(fileName, out poolQueue))
{
poolQueue.PoolVersion++;
Queue <WeakReference> queue = poolQueue.Queue;
if (queue != null)
{
while (queue.Count > 0)
{
WeakReference weakReference = queue.Dequeue();
if (weakReference == null)
{
continue;
}
SQLiteConnectionHandle target = weakReference.Target as SQLiteConnectionHandle;
if (target != null)
{
target.Dispose();
}
GC.KeepAlive(target);
}
}
else
{
return;
}
}
}
}