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SafeHandles.cs
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SafeHandles.cs
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System;
using System.Runtime.InteropServices;
namespace SafeHandleTests
{
public class TestSafeHandle : SafeHandle
{
public TestSafeHandle()
: base(IntPtr.Zero, true)
{}
public TestSafeHandle(IntPtr handleValue)
: this()
{
handle = handleValue;
}
public override bool IsInvalid => handle == IntPtr.Zero;
protected override bool ReleaseHandle()
{
handle = IntPtr.Zero;
return true;
}
}
public abstract class AbstractDerivedSafeHandle : SafeHandle
{
public AbstractDerivedSafeHandle()
: base(IntPtr.Zero, true)
{}
}
public class AbstractDerivedSafeHandleImplementation : AbstractDerivedSafeHandle
{
public AbstractDerivedSafeHandleImplementation()
: base()
{}
public AbstractDerivedSafeHandleImplementation(IntPtr handleValue)
: this()
{
handle = handleValue;
}
public override bool IsInvalid => handle == IntPtr.Zero;
protected override bool ReleaseHandle()
{
handle = IntPtr.Zero;
return true;
}
}
public class NoDefaultConstructorSafeHandle : SafeHandle
{
public NoDefaultConstructorSafeHandle(IntPtr handleValue)
: base(IntPtr.Zero, true)
{
handle = handleValue;
}
public override bool IsInvalid => handle == IntPtr.Zero;
protected override bool ReleaseHandle()
{
handle = IntPtr.Zero;
return true;
}
}
}