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105 lines
3.8 KiB
C#
105 lines
3.8 KiB
C#
// Copyright (C) 2025, The Duplicati Team
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// https://duplicati.com, hello@duplicati.com
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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using System.Diagnostics;
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using System.Runtime.InteropServices;
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using System.Runtime.Versioning;
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namespace ReleaseBuilder;
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/// <summary>
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/// A class that prevents the system from sleeping during build
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/// </summary>
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public class KeepAliveAssertion : IDisposable
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{
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/// <summary>
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/// The previous state of the system, on Windows
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/// </summary>
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private NativeMethods.EXECUTION_STATE? _previousState;
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/// <summary>
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/// The process that keeps the system awake, on Linux and MacOS
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/// </summary>
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private Process? _keepAliveProcess;
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/// <summary>
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/// Creates a new instance of the <see cref="KeepAliveAssertion"/> class
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/// </summary>
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public KeepAliveAssertion()
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{
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if (OperatingSystem.IsWindows())
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{
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try { _previousState = NativeMethods.SetThreadExecutionState(NativeMethods.EXECUTION_STATE.ES_CONTINUOUS | NativeMethods.EXECUTION_STATE.ES_SYSTEM_REQUIRED | NativeMethods.EXECUTION_STATE.ES_AWAYMODE_REQUIRED); }
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catch { }
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}
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else if (OperatingSystem.IsLinux())
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{
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try { _keepAliveProcess = Process.Start("xset", "s off -dpms"); }
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catch { }
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}
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else if (OperatingSystem.IsMacOS())
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{
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try
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{
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// Keep the display awake until this process exits
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var selfProcessId = Process.GetCurrentProcess().Id;
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_keepAliveProcess = Process.Start("caffeinate", ["-d", "-w", selfProcessId.ToString()]);
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}
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catch { }
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}
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}
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/// <summary>
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/// A class that contains Windows native methods
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/// </summary>
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[SupportedOSPlatform("windows")]
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private class NativeMethods
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{
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[DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
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public static extern EXECUTION_STATE SetThreadExecutionState(EXECUTION_STATE esFlags); // returns the previous state
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[Flags]
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public enum EXECUTION_STATE : uint
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{
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ES_AWAYMODE_REQUIRED = 0x00000040,
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ES_CONTINUOUS = 0x80000000,
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ES_SYSTEM_REQUIRED = 0x00000001
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}
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}
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/// <inheritdoc />
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public void Dispose()
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{
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if (OperatingSystem.IsWindows())
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{
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if (_previousState != null)
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NativeMethods.SetThreadExecutionState(_previousState.Value);
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}
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else if (OperatingSystem.IsLinux())
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{
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_keepAliveProcess?.Kill();
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_keepAliveProcess?.Dispose();
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}
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else if (OperatingSystem.IsMacOS())
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{
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_keepAliveProcess?.Kill();
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_keepAliveProcess?.Dispose();
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}
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}
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}
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