SafeLocalAllocHandle.cs

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using System;
using System.Runtime.InteropServices;
 
namespace Microsoft.Win32.SafeHandles;
 
internal sealed class SafeLocalAllocHandle : SafeBuffer
{
    internal static SafeLocalAllocHandle InvalidHandle => new SafeLocalAllocHandle(IntPtr.Zero);
 
    public SafeLocalAllocHandle()
        : base(ownsHandle: true)
    {
    }
 
    internal static SafeLocalAllocHandle LocalAlloc(int cb)
    {
        SafeLocalAllocHandle safeLocalAllocHandle = new SafeLocalAllocHandle();
        safeLocalAllocHandle.SetHandle(Marshal.AllocHGlobal(cb));
        safeLocalAllocHandle.Initialize((ulong)cb);
        return safeLocalAllocHandle;
    }
 
    internal SafeLocalAllocHandle(IntPtr handle)
        : base(ownsHandle: true)
    {
        SetHandle(handle);
    }
 
    protected override bool ReleaseHandle()
    {
        Marshal.FreeHGlobal(handle);
        return true;
    }
}