mirror of
https://github.com/terrymacdonald/DisplayMagician.git
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357 lines
13 KiB
C#
357 lines
13 KiB
C#
using System;
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using System.ComponentModel;
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using System.Diagnostics;
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using System.IO;
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using System.Linq;
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using System.Runtime.InteropServices;
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// This file is taken from Soroush Falahati's amazing HeliosDisplayManagement software
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// available at https://github.com/falahati/HeliosDisplayManagement
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namespace DisplayMagicianShared
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{
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/// <summary>
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/// Represents a Restart Manager session. The Restart Manager enables all but the critical system services to be shut
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/// down and restarted with aim of eliminate or reduce the number of system restarts that are required to complete an
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/// installation or update.
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/// </summary>
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/// <seealso cref="System.IDisposable" />
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public class RestartManagerSession : IDisposable
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{
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public delegate void WriteStatusCallback(uint percentageCompleted);
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/// <summary>
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/// Specifies the type of modification that is applied to restart or shutdown actions.
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/// </summary>
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public enum FilterAction : uint
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{
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/// <summary>
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/// Prevents the restart of the specified application or service.
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/// </summary>
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RmNoRestart = 1,
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/// <summary>
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/// Prevents the shut down and restart of the specified application or service.
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/// </summary>
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RmNoShutdown = 2
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}
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[Flags]
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public enum ShutdownType : uint
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{
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/// <summary>
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/// Default behavior
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/// </summary>
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Normal = 0,
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/// <summary>
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/// Force unresponsive applications and services to shut down after the timeout period. An application that does not
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/// respond to a shutdown request is forced to shut down within 30 seconds. A service that does not respond to a
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/// shutdown request is forced to shut down after 20 seconds.
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/// </summary>
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ForceShutdown = 0x1,
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/// <summary>
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/// Shut down applications if and only if all the applications have been registered for restart using the
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/// RegisterApplicationRestart function. If any processes or services cannot be restarted, then no processes or
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/// services are shut down.
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/// </summary>
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ShutdownOnlyRegistered = 0x10
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}
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public RestartManagerSession()
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{
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SessionKey = Guid.NewGuid().ToString();
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var errorCode = StartSession(out var sessionHandle, 0, SessionKey);
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if (errorCode != 0)
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{
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throw new Win32Exception(errorCode);
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}
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Handle = sessionHandle;
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}
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public RestartManagerSession(string sessionKey)
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{
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SessionKey = sessionKey;
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var errorCode = JoinSession(out var sessionHandle, SessionKey);
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if (errorCode != 0)
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{
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throw new Win32Exception(errorCode);
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}
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Handle = sessionHandle;
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}
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private IntPtr Handle { get; }
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public string SessionKey { get; }
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/// <inheritdoc />
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public void Dispose()
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{
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ReleaseUnmanagedResources();
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GC.SuppressFinalize(this);
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}
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[DllImport("rstrtmgr", EntryPoint = "RmAddFilter", CharSet = CharSet.Auto)]
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// ReSharper disable once TooManyArguments
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private static extern int AddFilter(
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IntPtr sessionHandle,
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string fileName,
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UniqueProcess application,
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string serviceName,
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FilterAction filterAction);
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[DllImport("rstrtmgr", EntryPoint = "RmAddFilter", CharSet = CharSet.Auto)]
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// ReSharper disable once TooManyArguments
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private static extern int AddFilter(
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IntPtr sessionHandle,
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string fileName,
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IntPtr application,
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string serviceName,
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FilterAction filterAction);
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[DllImport("rstrtmgr", EntryPoint = "RmEndSession")]
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private static extern int EndSession(IntPtr sessionHandle);
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[DllImport("rstrtmgr", EntryPoint = "RmJoinSession", CharSet = CharSet.Auto)]
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private static extern int JoinSession(out IntPtr sessionHandle, string strSessionKey);
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[DllImport("rstrtmgr", EntryPoint = "RmRegisterResources", CharSet = CharSet.Auto)]
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// ReSharper disable once TooManyArguments
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private static extern int RegisterResources(
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IntPtr sessionHandle,
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uint numberOfFiles,
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string[] fileNames,
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uint numberOfApplications,
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UniqueProcess[] applications,
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uint numberOfServices,
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string[] serviceNames);
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[DllImport("rstrtmgr", EntryPoint = "RmRestart")]
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private static extern int Restart(IntPtr sessionHandle, int restartFlags, WriteStatusCallback statusCallback);
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[DllImport("rstrtmgr", EntryPoint = "RmShutdown")]
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private static extern int Shutdown(
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IntPtr sessionHandle,
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ShutdownType actionFlags,
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WriteStatusCallback statusCallback);
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[DllImport("rstrtmgr", EntryPoint = "RmStartSession", CharSet = CharSet.Auto)]
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private static extern int StartSession(out IntPtr sessionHandle, int sessionFlags, string strSessionKey);
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public void FilterProcess(Process process, FilterAction action)
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{
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var errorCode = AddFilter(Handle, null, UniqueProcess.FromProcess(process), null, action);
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if (errorCode != 0)
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{
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throw new Win32Exception(errorCode);
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}
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}
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public void FilterProcessFile(FileInfo file, FilterAction action)
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{
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var errorCode = AddFilter(Handle, file.FullName, IntPtr.Zero, null, action);
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if (errorCode != 0)
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{
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throw new Win32Exception(errorCode);
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}
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}
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public void FilterService(string serviceName, FilterAction action)
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{
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var errorCode = AddFilter(Handle, null, IntPtr.Zero, serviceName, action);
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if (errorCode != 0)
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{
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throw new Win32Exception(errorCode);
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}
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}
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public void RegisterProcess(params Process[] processes)
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{
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var errorCode = RegisterResources(Handle,
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0, new string[0],
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(uint)processes.Length, processes.Select(UniqueProcess.FromProcess).ToArray(),
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0, new string[0]);
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if (errorCode != 0)
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{
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throw new Win32Exception(errorCode);
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}
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}
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public void RegisterProcessFile(params FileInfo[] files)
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{
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var errorCode = RegisterResources(Handle,
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(uint)files.Length, files.Select(f => f.FullName).ToArray(),
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0, new UniqueProcess[0],
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0, new string[0]);
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if (errorCode != 0)
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{
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throw new Win32Exception(errorCode);
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}
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}
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public void RegisterService(params string[] serviceNames)
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{
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var errorCode = RegisterResources(Handle,
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0, new string[0],
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0, new UniqueProcess[0],
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(uint)serviceNames.Length, serviceNames);
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if (errorCode != 0)
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{
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throw new Win32Exception(errorCode);
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}
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}
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public void Restart(WriteStatusCallback statusCallback)
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{
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var errorCode = Restart(Handle, 0, statusCallback);
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if (errorCode != 0)
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{
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throw new Win32Exception(errorCode);
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}
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}
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public void Restart()
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{
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Restart(null);
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}
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public void Shutdown(ShutdownType shutdownType, WriteStatusCallback statusCallback)
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{
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var errorCode = Shutdown(Handle, shutdownType, statusCallback);
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if (errorCode != 0)
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{
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throw new Win32Exception(errorCode);
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}
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}
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public void Shutdown(ShutdownType shutdownType)
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{
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Shutdown(shutdownType, null);
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}
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private void ReleaseUnmanagedResources()
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{
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try
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{
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EndSession(Handle);
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}
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catch (Exception)
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{
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// ignored
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}
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}
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/// <inheritdoc />
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~RestartManagerSession()
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{
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ReleaseUnmanagedResources();
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}
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[StructLayout(LayoutKind.Sequential)]
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private struct FileTime
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{
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private uint LowDateTime;
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private uint HighDateTime;
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public static FileTime FromDateTime(DateTime dateTime)
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{
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var ticks = dateTime.ToFileTime();
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return new FileTime
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{
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HighDateTime = (uint)(ticks >> 32),
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LowDateTime = (uint)(ticks & uint.MaxValue)
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};
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}
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}
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[StructLayout(LayoutKind.Sequential)]
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private struct UniqueProcess
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{
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private int ProcessId;
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private FileTime ProcessStartTime;
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public static UniqueProcess FromProcess(Process process)
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{
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return new UniqueProcess
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{
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ProcessId = process.Id,
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ProcessStartTime = FileTime.FromDateTime(process.StartTime)
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};
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}
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}
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public static bool RestartExplorer()
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{
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try
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{
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RestartManagerSession restartManager = new RestartManagerSession();
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FileInfo explorerFileInfo = new FileInfo(@"C:\Windows\explorer.exe");
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restartManager.RegisterProcessFile(explorerFileInfo);
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restartManager.Shutdown(RestartManagerSession.ShutdownType.Normal);
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restartManager.Restart();
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restartManager.Dispose();
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return true;
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}
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catch (Win32Exception ex)
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{
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if (ex.ErrorCode == 776)
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{
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SharedLogger.logger.Error(ex, $"WinLibrary/RestartExplorer: RestartManager was unable to restart Windows Explorer. ERROR_REQUEST_OUT_OF_SEQUENCE (779): This error value is returned if the RmRestart function is called with a valid session handle before calling the RmShutdown function.");
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}
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else if (ex.ErrorCode == 352)
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{
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SharedLogger.logger.Error(ex, $"WinLibrary/RestartExplorer: RestartManager was unable to restart Windows Explorer. ERROR_FAIL_RESTART (352): One or more applications could not be restarted.");
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}
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else if (ex.ErrorCode == 121)
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{
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SharedLogger.logger.Error(ex, $"WinLibrary/RestartExplorer: RestartManager was unable to restart Windows Explorer. ERROR_SEM_TIMEOUT (121): A Restart Manager function could not obtain a registry write mutex in the allotted time. A system restart is recommended because further use of the Restart Manager is likely to fail.");
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}
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else if (ex.ErrorCode == 1223)
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{
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SharedLogger.logger.Error(ex, $"WinLibrary/RestartExplorer: RestartManager was unable to restart Windows Explorer. ERROR_CANCELLED (1223): This error value is returned by the RmRestart function when the request to cancel an operation is successful.");
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}
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else if (ex.ErrorCode == 160)
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{
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SharedLogger.logger.Error(ex, $"WinLibrary/RestartExplorer: RestartManager was unable to restart Windows Explorer. ERROR_BAD_ARGUMENTS (160): One or more arguments are not correct. This error value is returned by the Restart Manager function if a NULL pointer or 0 is passed in a parameter that requires a non-null and non-zero value.");
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}
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else if (ex.ErrorCode == 29)
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{
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SharedLogger.logger.Error(ex, $"WinLibrary/RestartExplorer: RestartManager was unable to restart Windows Explorer. ERROR_WRITE_FAULT (29): An operation was unable to read or write to the registry.");
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}
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else if (ex.ErrorCode == 14)
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{
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SharedLogger.logger.Error(ex, $"WinLibrary/RestartExplorer: RestartManager was unable to restart Windows Explorer. ERROR_OUTOFMEMORY (14): A Restart Manager operation could not complete because not enough memory was available.");
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}
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else if (ex.ErrorCode == 6)
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{
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SharedLogger.logger.Error(ex, $"WinLibrary/RestartExplorer: RestartManager was unable to restart Windows Explorer. ERROR_INVALID_HANDLE (6): No Restart Manager session exists for the handle supplied.");
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}
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else
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{
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SharedLogger.logger.Error(ex, $"WinLibrary/RestartExplorer: RestartManager was unable to restart Windows Explorer. ErrorCode = {ex.ErrorCode}.");
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}
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return false;
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}
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catch (Exception ex)
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{
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SharedLogger.logger.Error(ex, $"WinLibrary/RestartExplorer: General exception when trying to restart Windows Explorer!");
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return false;
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}
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}
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}
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}
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