src/System.Private.CoreLib/src/System/Runtime/InteropServices/Marshal.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.
// See the LICENSE file in the project root for more information.

using Internal.Runtime.Augments;

namespace System.Runtime.InteropServices
{
    /// <summary>
    /// This is an internal hacky implementation of Marshal
    /// The original implementation of Marshal resides in S.P.Interop
    /// </summary>
    internal class Marshal
    {
        public static unsafe string PtrToStringUni(IntPtr ptr, int len)
        {
            return PInvokeMarshal.PtrToStringUni(ptr, len);
        }

        public static unsafe string PtrToStringUni(IntPtr ptr)
        {
            return PInvokeMarshal.PtrToStringUni(ptr);
        }

        public static int GetLastWin32Error()
        {
            return PInvokeMarshal.GetLastWin32Error();
        }

        public static int GetHRForLastWin32Error()
        {
            return PInvokeMarshal.GetHRForLastWin32Error();
        }

        public static unsafe IntPtr AllocHGlobal(IntPtr cb)
        {
            return PInvokeMarshal.AllocHGlobal(cb);
        }

        public static unsafe IntPtr AllocHGlobal(int cb)
        {
            return PInvokeMarshal.AllocHGlobal(cb);
        }

        public static void FreeHGlobal(IntPtr hglobal)
        {
            PInvokeMarshal.FreeHGlobal(hglobal);
        }

        public static unsafe IntPtr AllocCoTaskMem(int cb)
        {
            return PInvokeMarshal.AllocCoTaskMem(cb);
        }

        public static void FreeCoTaskMem(IntPtr ptr)
        {
            PInvokeMarshal.FreeCoTaskMem(ptr);
        }

        public static void Copy(IntPtr source, byte[] destination, int startIndex, int length)
        {
            PInvokeMarshal.CopyToManaged(source, destination, startIndex, length);
        }

#if PLATFORM_UNIX
        public static unsafe String PtrToStringAnsi(IntPtr ptr)
        {
            return PInvokeMarshal.PtrToStringAnsi(ptr);
        }

        public static unsafe String PtrToStringAnsi(IntPtr ptr, int len)
        {
            return PInvokeMarshal.PtrToStringAnsi(ptr, len);
        }
#endif

        public static void ThrowExceptionForHR(int errorCode)
        {
            if (errorCode < 0)
                throw RuntimeAugments.Callbacks.GetExceptionForHR(errorCode);
        }
    }
}