bindings/dotnet/OpenDAL/Options/NativeOptionsHandle.cs

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

using System.Runtime.InteropServices;

namespace OpenDAL.Options;

public sealed class NativeOptionsHandle : SafeHandle
{
    private readonly Action<IntPtr> release;

    public NativeOptionsHandle(IntPtr ptr, Action<IntPtr> release)
        : base(IntPtr.Zero, true)
    {
        this.release = release;
        SetHandle(ptr);
    }

    public override bool IsInvalid => handle == IntPtr.Zero;

    protected override bool ReleaseHandle()
    {
        if (IsInvalid)
        {
            return true;
        }

        release(handle);
        handle = IntPtr.Zero;
        return true;
    }
}