83 lines
3.0 KiB
C#
83 lines
3.0 KiB
C#
// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
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// If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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// Copyright (C) LibreHardwareMonitor and Contributors.
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// All Rights Reserved.
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using System;
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using System.Runtime.InteropServices;
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// ReSharper disable InconsistentNaming
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namespace LibreHardwareMonitor.Interop
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{
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internal class NtDll
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{
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private const string DllName = "ntdll";
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[StructLayout(LayoutKind.Sequential)]
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internal struct SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION
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{
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public long IdleTime;
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public long KernelTime;
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public long UserTime;
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public long Reserved0;
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public long Reserved1;
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public ulong Reserved2;
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}
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internal enum SYSTEM_INFORMATION_CLASS
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{
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SystemBasicInformation,
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SystemProcessorInformation,
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SystemPerformanceInformation,
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SystemTimeOfDayInformation,
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SystemPathInformation,
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SystemProcessInformation,
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SystemCallCountInformation,
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SystemDeviceInformation,
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SystemProcessorPerformanceInformation,
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SystemFlagsInformation,
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SystemCallTimeInformation,
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SystemModuleInformation,
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SystemLocksInformation,
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SystemStackTraceInformation,
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SystemPagedPoolInformation,
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SystemNonPagedPoolInformation,
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SystemHandleInformation,
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SystemObjectInformation,
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SystemPageFileInformation,
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SystemVdmInstemulInformation,
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SystemVdmBopInformation,
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SystemFileCacheInformation,
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SystemPoolTagInformation,
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SystemInterruptInformation,
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SystemDpcBehaviorInformation,
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SystemFullMemoryInformation,
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SystemLoadGdiDriverInformation,
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SystemUnloadGdiDriverInformation,
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SystemTimeAdjustmentInformation,
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SystemSummaryMemoryInformation,
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SystemNextEventIdInformation,
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SystemEventIdsInformation,
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SystemCrashDumpInformation,
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SystemExceptionInformation,
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SystemCrashDumpStateInformation,
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SystemKernelDebuggerInformation,
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SystemContextSwitchInformation,
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SystemRegistryQuotaInformation,
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SystemExtendServiceTableInformation,
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SystemPrioritySeperation,
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SystemPlugPlayBusInformation,
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SystemDockInformation,
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SystemPowerInformation,
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SystemProcessorSpeedInformation,
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SystemCurrentTimeZoneInformation,
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SystemLookasideInformation
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}
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[DllImport(DllName)]
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[DefaultDllImportSearchPaths(DllImportSearchPath.System32)]
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internal static extern int NtQuerySystemInformation(SYSTEM_INFORMATION_CLASS SystemInformationClass, [Out] SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION[] SystemInformation, int SystemInformationLength, out IntPtr ReturnLength);
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}
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}
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