Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / Configuration / ProcessHostConfigUtils.cs / 3 / ProcessHostConfigUtils.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.Configuration { using System.Configuration; using System.Collections; using System.Globalization; using System.Runtime.InteropServices; using System.Threading; using System.Xml; using System.Security; using System.Text; using System.Web.Util; using System.Web.UI; using System.IO; using System.Web.Hosting; using System.Runtime.ConstrainedExecution; // // Uses IIS 7 native config // internal static class ProcessHostConfigUtils { internal const uint DEFAULT_SITE_ID_UINT = 1; internal const string DEFAULT_SITE_ID_STRING = "1"; private static string s_defaultSiteName; private static int s_InitedExternalConfig; private static NativeConfigWrapper _configWrapper; // static class ctor static ProcessHostConfigUtils() { HttpRuntime.ForceStaticInit(); } internal static void InitStandaloneConfig() { if (!HostingEnvironment.IsUnderIISProcess) { if (!ServerConfig.UseMetabase) { int inited= Interlocked.Exchange(ref s_InitedExternalConfig, 1); // only do this once if (0 == inited) { _configWrapper = new NativeConfigWrapper(); } } } } internal static string MapPathActual(string siteName, VirtualPath path) { string physicalPath = null; IntPtr pBstr = IntPtr.Zero; int cBstr = 0; try { int result = UnsafeIISMethods.MgdMapPathDirect(siteName, path.VirtualPathString, out pBstr, out cBstr); if (result < 0) { throw new InvalidOperationException(SR.GetString(SR.Cannot_map_path, path.VirtualPathString)); } physicalPath = (pBstr != IntPtr.Zero) ? StringUtil.StringFromWCharPtr(pBstr, cBstr) : null; } finally { if (pBstr != IntPtr.Zero) { Marshal.FreeBSTR(pBstr); } } return physicalPath; } internal static string GetSiteNameFromId(uint siteId) { if ( siteId == DEFAULT_SITE_ID_UINT && s_defaultSiteName != null) { return s_defaultSiteName; } IntPtr pBstr = IntPtr.Zero; int cBstr = 0; string siteName = null; try { int result = UnsafeIISMethods.MgdGetSiteNameFromId(siteId, out pBstr, out cBstr); siteName = (result == 0 && pBstr != IntPtr.Zero) ? StringUtil.StringFromWCharPtr(pBstr, cBstr) : String.Empty; } finally { if (pBstr != IntPtr.Zero) { Marshal.FreeBSTR(pBstr); } } if ( siteId == DEFAULT_SITE_ID_UINT) { s_defaultSiteName = siteName; } return siteName; } private class NativeConfigWrapper : CriticalFinalizerObject { internal NativeConfigWrapper() { int result = UnsafeIISMethods.MgdInitNativeConfig(); if (result < 0) { s_InitedExternalConfig = 0; throw new InvalidOperationException(SR.GetString(SR.Cant_Init_Native_Config, result.ToString("X8", CultureInfo.InvariantCulture))); } } [ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)] ~NativeConfigWrapper() { UnsafeIISMethods.MgdTerminateNativeConfig(); } } } }
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