/*
* 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.
*/
#pragma warning disable 1591
using System;
using System.Runtime.InteropServices;
using System.ComponentModel;
namespace Eina
{
///
/// Manage the initialization and cleanup for eina.
/// Since EFL 1.23.
///
public static class Config
{
[DllImport(efl.Libs.Eina)] private static extern int eina_init();
[DllImport(efl.Libs.Eina)] private static extern int eina_shutdown();
///
/// Initialize the Eina library.
/// Since EFL 1.23.
///
public static void Init()
{
if (eina_init() == 0)
{
throw (new Efl.EflException("Failed to initialize Eina"));
}
}
///
/// Finalize the Eina library.
/// Since EFL 1.23.
///
public static int Shutdown()
{
return eina_shutdown();
}
}
///
/// Wrapper class for pointers that need some cleanup afterwards like strings
/// Since EFL 1.23.
///
public class DisposableIntPtr : IDisposable
{
[EditorBrowsable(EditorBrowsableState.Never)]
public IntPtr Handle { get; set; }
private bool ShouldFree;
private bool Disposed;
/// Wraps a new ptr what will be freed based on the
/// value of shouldFree
/// Since EFL 1.23.
///
public DisposableIntPtr(IntPtr ptr, bool shouldFree = false)
{
Handle = ptr;
ShouldFree = shouldFree;
}
/// Release the native resources held by this instance.
/// Since EFL 1.23.
///
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
/// Disposes of this wrapper, releasing the native handle if
/// owned.
/// Since EFL 1.23.
///
/// True if this was called from public method. False if
/// called from the C# finalizer.
protected virtual void Dispose(bool disposing)
{
if (!Disposed && ShouldFree)
{
MemoryNative.Free(this.Handle);
}
Disposed = true;
}
/// Release the native resources held by this instance.
/// Since EFL 1.23.
///
~DisposableIntPtr()
{
Dispose(false);
}
}
}