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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.
/*=============================================================================
**
**
**
** Purpose: Runtime information
**
**
=============================================================================*/
using System;
using System.Text;
using System.IO;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Security;
using System.Security.Permissions;
using System.Reflection;
using Microsoft.Win32;
using System.Runtime.Versioning;
using StackCrawlMark = System.Threading.StackCrawlMark;
namespace System.Runtime.InteropServices
{
[System.Runtime.InteropServices.ComVisible(true)]
static public class RuntimeEnvironment {
[MethodImplAttribute(MethodImplOptions.InternalCall)]
internal static extern String GetModuleFileName();
[MethodImplAttribute(MethodImplOptions.InternalCall)]
internal static extern String GetDeveloperPath();
[MethodImplAttribute(MethodImplOptions.InternalCall)]
internal static extern String GetHostBindingFile();
public static bool FromGlobalAccessCache(Assembly a)
{
return a.GlobalAssemblyCache;
}
[MethodImpl (MethodImplOptions.NoInlining)]
public static String GetSystemVersion()
{
return Assembly.GetExecutingAssembly().ImageRuntimeVersion;
}
public static String GetRuntimeDirectory()
{
String dir = GetRuntimeDirectoryImpl();
new FileIOPermission(FileIOPermissionAccess.PathDiscovery, dir).Demand();
return dir;
}
[MethodImplAttribute(MethodImplOptions.InternalCall)]
internal static extern String GetRuntimeDirectoryImpl();
// Returns the system ConfigurationFile
public static String SystemConfigurationFile {
get {
StringBuilder sb = new StringBuilder(Path.MaxPath);
sb.Append(GetRuntimeDirectory());
sb.Append(AppDomainSetup.RuntimeConfigurationFile);
String path = sb.ToString();
// Do security check
new FileIOPermission(FileIOPermissionAccess.PathDiscovery, path).Demand();
return path;
}
}
#if FEATURE_COMINTEROP
[DllImport(JitHelpers.QCall, CharSet = CharSet.Unicode)]
[SuppressUnmanagedCodeSecurity]
private static extern IntPtr GetRuntimeInterfaceImpl(
[In, MarshalAs(UnmanagedType.LPStruct)] Guid clsid,
[In, MarshalAs(UnmanagedType.LPStruct)] Guid riid);
//
// This function does the equivalent of calling GetInterface(clsid, riid) on the
// ICLRRuntimeInfo representing this runtime. See MetaHost.idl for a list of
// CLSIDs and IIDs supported by this method.
//
// Returns unmanaged pointer to requested interface on success. Throws
// COMException with failed HR if there is a QI failure.
//
[ComVisible(false)]
public static IntPtr GetRuntimeInterfaceAsIntPtr(Guid clsid, Guid riid)
{
return GetRuntimeInterfaceImpl(clsid, riid);
}
//
// This function does the equivalent of calling GetInterface(clsid, riid) on the
// ICLRRuntimeInfo representing this runtime. See MetaHost.idl for a list of
// CLSIDs and IIDs supported by this method.
//
// Returns an RCW to requested interface on success. Throws
// COMException with failed HR if there is a QI failure.
//
[ComVisible(false)]
public static object GetRuntimeInterfaceAsObject(Guid clsid, Guid riid)
{
IntPtr p = IntPtr.Zero;
try {
p = GetRuntimeInterfaceImpl(clsid, riid);
return Marshal.GetObjectForIUnknown(p);
} finally {
if(p != IntPtr.Zero) {
Marshal.Release(p);
}
}
}
#endif // FEATURE_COMINTEROP
}
}
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