using System; using System.Threading; namespace Org.BouncyCastle.Utilities { public static class Objects { public static int GetHashCode(object obj) { return obj?.GetHashCode() ?? 0; } internal static TValue EnsureSingletonInitialized<TValue, TArg>(ref TValue value, TArg arg, Func<TArg, TValue> initialize) where TValue : class { TValue val = Volatile.Read(ref value); if (val != null) return val; TValue val2 = initialize(arg); return Interlocked.CompareExchange(ref value, val2, null) ?? val2; } } }