efl/src/bindings/mono/eo_mono/NativeModule.cs

83 lines
2.0 KiB
C#

/*
* Copyright 2019 by its authors. See AUTHORS.
*
* Licensed 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;
namespace Efl.Eo
{
///<summary>Wraps a native module that was opened with dlopen/LoadLibrary.</summary>
internal partial class NativeModule : IDisposable
{
private Lazy<IntPtr> module;
private bool disposed = false;
///<summary>Lazily tries to load the module with the given name.</summary>
///<param name="libName">The name of the module to load.</param>
internal NativeModule(string libName)
{
module = new Lazy<IntPtr>
(() =>
{
return LoadLibrary(libName);
});
}
///<summary>The module that was loaded.</summary>
internal IntPtr Module
{
get
{
return module.Value;
}
}
/// <summary>Finalizer to be called from the Garbage Collector.</summary>
~NativeModule()
{
Dispose(false);
}
/// <summary>Unload and released the handle to the wrapped module.</summary>
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
/// <summary>Unload and released the handle to the wrapped module.</summary>
protected virtual void Dispose(bool disposing)
{
if (disposed)
{
return;
}
if (disposing)
{
module = null;
}
if (module.IsValueCreated)
{
UnloadLibrary(module.Value);
}
disposed = true;
}
}
}