internal static void Add(string fileName, SQLiteConnectionHandle handle, int version)
{
SQLiteConnectionPool.PoolQueue poolQueue;
ISQLiteConnectionPool connectionPool = SQLiteConnectionPool.GetConnectionPool();
if (connectionPool != null)
{
connectionPool.Add(fileName, handle, version);
return;
}
lock (SQLiteConnectionPool._syncRoot)
{
if (!SQLiteConnectionPool._queueList.TryGetValue(fileName, out poolQueue) || version != poolQueue.PoolVersion)
{
handle.Close();
}
else
{
SQLiteConnectionPool.ResizePool(poolQueue, true);
Queue <WeakReference> queue = poolQueue.Queue;
if (queue != null)
{
queue.Enqueue(new WeakReference(handle, false));
Interlocked.Increment(ref SQLiteConnectionPool._poolClosed);
}
else
{
return;
}
}
GC.KeepAlive(handle);
}
}
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 GetCounts(string fileName, ref Dictionary <string, int> counts, ref int openCount, ref int closeCount, ref int totalCount)
{
SQLiteConnectionPool.PoolQueue poolQueue;
ISQLiteConnectionPool connectionPool = SQLiteConnectionPool.GetConnectionPool();
if (connectionPool != null)
{
connectionPool.GetCounts(fileName, ref counts, ref openCount, ref closeCount, ref totalCount);
return;
}
lock (SQLiteConnectionPool._syncRoot)
{
openCount = SQLiteConnectionPool._poolOpened;
closeCount = SQLiteConnectionPool._poolClosed;
if (counts == null)
{
counts = new Dictionary <string, int>(StringComparer.OrdinalIgnoreCase);
}
if (fileName == null)
{
foreach (KeyValuePair <string, SQLiteConnectionPool.PoolQueue> keyValuePair in SQLiteConnectionPool._queueList)
{
if (keyValuePair.Value == null)
{
continue;
}
Queue <WeakReference> queue = keyValuePair.Value.Queue;
int num = (queue != null ? queue.Count : 0);
counts.Add(keyValuePair.Key, num);
totalCount += num;
}
}
else if (SQLiteConnectionPool._queueList.TryGetValue(fileName, out poolQueue))
{
Queue <WeakReference> weakReferences = poolQueue.Queue;
int num1 = (weakReferences != null ? weakReferences.Count : 0);
counts.Add(fileName, num1);
totalCount += num1;
}
}
}
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;
}
}
}
}
internal static SQLiteConnectionHandle Remove(string fileName, int maxPoolSize, out int version)
{
int num;
Queue <WeakReference> queue;
SQLiteConnectionPool.PoolQueue poolQueue;
SQLiteConnectionPool.PoolQueue poolQueue1;
bool flag;
SQLiteConnectionHandle sQLiteConnectionHandle;
ISQLiteConnectionPool connectionPool = SQLiteConnectionPool.GetConnectionPool();
if (connectionPool != null)
{
return(connectionPool.Remove(fileName, maxPoolSize, out version) as SQLiteConnectionHandle);
}
lock (SQLiteConnectionPool._syncRoot)
{
version = SQLiteConnectionPool._poolVersion;
if (SQLiteConnectionPool._queueList.TryGetValue(fileName, out poolQueue))
{
int poolVersion = poolQueue.PoolVersion;
num = poolVersion;
version = poolVersion;
poolQueue.MaxPoolSize = maxPoolSize;
SQLiteConnectionPool.ResizePool(poolQueue, false);
queue = poolQueue.Queue;
if (queue != null)
{
SQLiteConnectionPool._queueList.Remove(fileName);
queue = new Queue <WeakReference>(queue);
goto Label0;
}
else
{
sQLiteConnectionHandle = null;
}
}
else
{
poolQueue = new SQLiteConnectionPool.PoolQueue(SQLiteConnectionPool._poolVersion, maxPoolSize);
SQLiteConnectionPool._queueList.Add(fileName, poolQueue);
sQLiteConnectionHandle = null;
}
}
return(sQLiteConnectionHandle);
Label0:
try
{
while (queue.Count > 0)
{
WeakReference weakReference = queue.Dequeue();
if (weakReference == null)
{
continue;
}
SQLiteConnectionHandle target = weakReference.Target as SQLiteConnectionHandle;
if (target == null)
{
continue;
}
GC.SuppressFinalize(target);
try
{
GC.WaitForPendingFinalizers();
if (!target.IsInvalid && !target.IsClosed)
{
Interlocked.Increment(ref SQLiteConnectionPool._poolOpened);
sQLiteConnectionHandle = target;
return(sQLiteConnectionHandle);
}
}
finally
{
GC.ReRegisterForFinalize(target);
}
GC.KeepAlive(target);
}
}
finally
{
lock (SQLiteConnectionPool._syncRoot)
{
if (!SQLiteConnectionPool._queueList.TryGetValue(fileName, out poolQueue1))
{
flag = true;
poolQueue1 = new SQLiteConnectionPool.PoolQueue(num, maxPoolSize);
}
else
{
flag = false;
}
Queue <WeakReference> weakReferences = poolQueue1.Queue;
while (queue.Count > 0)
{
weakReferences.Enqueue(queue.Dequeue());
}
SQLiteConnectionPool.ResizePool(poolQueue1, false);
if (flag)
{
SQLiteConnectionPool._queueList.Add(fileName, poolQueue1);
}
}
}
return(null);
}
internal override void Open(string strFilename, string vfsName, SQLiteConnectionFlags connectionFlags, SQLiteOpenFlagsEnum openFlags, int maxPoolSize, bool usePool)
{
SQLiteErrorCode sQLiteErrorCode;
if (this._sql != null)
{
this.Close(true);
}
if (this._sql != null)
{
throw new SQLiteException("connection handle is still active");
}
this._usePool = usePool;
this._fileName = strFilename;
this._flags = connectionFlags;
if (usePool)
{
this._sql = SQLiteConnectionPool.Remove(strFilename, maxPoolSize, out this._poolVersion);
SQLiteConnectionHandle sQLiteConnectionHandle = this._sql;
object[] objArray = new object[] { typeof(SQLite3_UTF16), strFilename, vfsName, connectionFlags, openFlags, maxPoolSize, usePool, this._poolVersion };
SQLiteConnection.OnChanged(null, new ConnectionEventArgs(SQLiteConnectionEventType.OpenedFromPool, null, null, null, null, sQLiteConnectionHandle, strFilename, objArray));
}
if (this._sql == null)
{
try
{
}
finally
{
IntPtr zero = IntPtr.Zero;
int num = ((connectionFlags & SQLiteConnectionFlags.NoExtensionFunctions) != SQLiteConnectionFlags.NoExtensionFunctions ? 1 : 0);
if (vfsName != null || num != 0)
{
sQLiteErrorCode = UnsafeNativeMethods.sqlite3_open16_interop(SQLiteConvert.ToUTF8(strFilename), SQLiteConvert.ToUTF8(vfsName), openFlags, num, ref zero);
}
else
{
if ((openFlags & SQLiteOpenFlagsEnum.Create) != SQLiteOpenFlagsEnum.Create && !File.Exists(strFilename))
{
throw new SQLiteException(SQLiteErrorCode.CantOpen, strFilename);
}
if (vfsName != null)
{
CultureInfo currentCulture = CultureInfo.CurrentCulture;
object[] objArray1 = new object[] { vfsName };
throw new SQLiteException(SQLiteErrorCode.CantOpen, HelperMethods.StringFormat(currentCulture, "cannot open using UTF-16 and VFS \"{0}\": need interop assembly", objArray1));
}
sQLiteErrorCode = UnsafeNativeMethods.sqlite3_open16(strFilename, ref zero);
}
if (sQLiteErrorCode != SQLiteErrorCode.Ok)
{
throw new SQLiteException(sQLiteErrorCode, null);
}
this._sql = new SQLiteConnectionHandle(zero, true);
}
lock (this._sql)
{
}
SQLiteConnectionHandle sQLiteConnectionHandle1 = this._sql;
object[] objArray2 = new object[] { typeof(SQLite3_UTF16), strFilename, vfsName, connectionFlags, openFlags, maxPoolSize, usePool };
SQLiteConnection.OnChanged(null, new ConnectionEventArgs(SQLiteConnectionEventType.NewCriticalHandle, null, null, null, null, sQLiteConnectionHandle1, strFilename, objArray2));
}
if ((connectionFlags & SQLiteConnectionFlags.NoBindFunctions) != SQLiteConnectionFlags.NoBindFunctions)
{
if (this._functions == null)
{
this._functions = new Dictionary <SQLiteFunctionAttribute, SQLiteFunction>();
}
foreach (KeyValuePair <SQLiteFunctionAttribute, SQLiteFunction> value in SQLiteFunction.BindFunctions(this, connectionFlags))
{
this._functions[value.Key] = value.Value;
}
}
this.SetTimeout(0);
GC.KeepAlive(this._sql);
}