SecurePooledObject.cs

Go to the documentation of this file.

using System.Diagnostics.CodeAnalysis;
using System.Runtime.CompilerServices;
 
namespace System.Collections.Immutable;
 
internal sealed class SecurePooledObject<T>
{
    private readonly T _value;
 
    private int _owner;
 
    internal int Owner
    {
        get
        {
            return _owner;
        }
        set
        {
            _owner = value;
        }
    }
 
    internal SecurePooledObject(T newValue)
    {
        Requires.NotNullAllowStructs(newValue, "newValue");
        _value = newValue;
    }
 
    internal T Use<TCaller>(ref TCaller caller) where TCaller : struct, ISecurePooledObjectUser
    {
        if (!IsOwned(ref caller))
        {
            Requires.FailObjectDisposed(caller);
        }
        return _value;
    }
 
    internal bool TryUse<TCaller>(ref TCaller caller, [MaybeNullWhen(false)] out T value) where TCaller : struct, ISecurePooledObjectUser
    {
        if (IsOwned(ref caller))
        {
            value = _value;
            return true;
        }
        value = default(T);
        return false;
    }
 
    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    internal bool IsOwned<TCaller>(ref TCaller caller) where TCaller : struct, ISecurePooledObjectUser
    {
        return caller.PoolUserId == _owner;
    }
}