// 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.
 
#nullable disable
 
using System;
using System.Runtime.InteropServices;
using System.Security;
using System.Text;
 
#pragma warning disable CS0436 // Type conflicts with imported type: SuppressUnmanagedCodeSecurity
 
namespace Microsoft.CodeAnalysis.Interop
{
    [ComImport, InterfaceType(ComInterfaceType.InterfaceIsIUnknown), Guid("BD39D1D2-BA2F-486A-89B0-B4B0CB466891"), SuppressUnmanagedCodeSecurity]
    internal interface IClrRuntimeInfo
    {
        [PreserveSig]
        int GetVersionString(
            [Out, MarshalAs(UnmanagedType.LPWStr, SizeParamIndex = 1)] StringBuilder buffer,
            [In, Out, MarshalAs(UnmanagedType.U4)] ref int bufferLength);
 
        [PreserveSig]
        int GetRuntimeDirectory(
            [Out, MarshalAs(UnmanagedType.LPWStr, SizeParamIndex = 1)] StringBuilder buffer,
            [In, Out, MarshalAs(UnmanagedType.U4)] ref int bufferLength);
 
        [return: MarshalAs(UnmanagedType.Bool)]
        bool IsLoaded(
            [In] IntPtr processHandle);
 
        [PreserveSig]
        int LoadErrorString(
            [In, MarshalAs(UnmanagedType.U4)] int resourceId,
            [Out, MarshalAs(UnmanagedType.LPWStr, SizeParamIndex = 2)] StringBuilder buffer,
            [In, Out, MarshalAs(UnmanagedType.U4)] ref int bufferLength);
 
        IntPtr LoadLibrary(
            [In, MarshalAs(UnmanagedType.LPWStr)] string dllName);
 
        IntPtr GetProcAddress(
            [In, MarshalAs(UnmanagedType.LPStr)] string procName);
 
        [return: MarshalAs(UnmanagedType.Interface)]
        object GetInterface(
            [In, MarshalAs(UnmanagedType.LPStruct)] Guid coClassId,
            [In, MarshalAs(UnmanagedType.LPStruct)] Guid interfaceId);
 
        [return: MarshalAs(UnmanagedType.Bool)]
        bool IsLoadable();
 
        void SetDefaultStartupFlags(
            [In, MarshalAs(UnmanagedType.U4)] int startupFlags,
            [In, MarshalAs(UnmanagedType.LPStr)] string hostConfigFile);
 
        [PreserveSig]
        int GetDefaultStartupFlags(
            [Out, MarshalAs(UnmanagedType.U4)] out int startupFlags,
            [Out, MarshalAs(UnmanagedType.LPWStr, SizeParamIndex = 2)] StringBuilder hostConfigFile,
            [In, Out, MarshalAs(UnmanagedType.U4)] ref int hostConfigFileLength);
 
        void BindAsLegacyV2Runtime();
 
        void IsStarted(
            [Out, MarshalAs(UnmanagedType.Bool)] out bool started,
            [Out, MarshalAs(UnmanagedType.U4)] out int startupFlags);
    }
}