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BeneficialCode
86 lines
2.4 KiB
C++
86 lines
2.4 KiB
C++
#include "pch.h"
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#include "SystemInformation.h"
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#include <Psapi.h>
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#include <assert.h>
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using namespace WinSys;
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thread_local int LastStatus;
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static_assert(sizeof(PerformanceInformation) == sizeof(SYSTEM_PERFORMANCE_INFORMATION));
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PerformanceInformation WinSys::SystemInformation::GetPerformanceInformation() {
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PerformanceInformation info{};
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ULONG len;
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auto status = ::NtQuerySystemInformation(SystemPerformanceInformation, &info, sizeof(info), &len);
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assert(NT_SUCCESS(status));
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return info;
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}
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const WindowsVersion& WinSys::SystemInformation::GetWindowsVersion() {
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static WindowsVersion version;
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if (version.Major == 0) {
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auto shareData = USER_SHARED_DATA;
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version.Build = shareData->NtBuildNumber;
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version.Major = shareData->NtMajorVersion;
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version.Minor = shareData->NtMinorVersion;
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}
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#pragma warning(push)
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#pragma warning(disable:4996)
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OSVERSIONINFOEX osv = { sizeof(osv) };
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GetVersionEx((OSVERSIONINFO*)&osv);
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if (version.Build != osv.dwBuildNumber) {
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version.Build = osv.dwBuildNumber;
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}
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#pragma warning(pop)
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return version;
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}
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const BasicSystemInfo& WinSys::SystemInformation::GetBasicSystemInfo() {
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static BasicSystemInfo info;
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if (info.PageSize == 0) {
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SYSTEM_INFO si;
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::GetNativeSystemInfo(&si);
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info.NumberOfProcessors = si.dwNumberOfProcessors;
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info.PageSize = si.dwPageSize;
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info.ProcessorArchitecture = static_cast<ProcessorArchitecture>(si.wProcessorArchitecture);
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info.ProcessorLevel = si.wProcessorLevel;
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info.ProcessorRevision = si.wProcessorRevision;
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info.MinimumAppAddress = si.lpMinimumApplicationAddress;
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info.MaximumAppAddress = si.lpMaximumApplicationAddress;
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PERFORMACE_INFORMATION pi = { sizeof(pi) };
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::GetPerformanceInfo(&pi, sizeof(pi));
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info.TotalPhysicalInPages = pi.PhysicalTotal;
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info.CommitLimitInPages = pi.CommitLimit;
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}
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return info;
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}
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uint64_t SystemInformation::GetBootTime() {
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static int64_t time = 0;
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if (time == 0) {
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SYSTEM_TIMEOFDAY_INFORMATION info;
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if(NT_SUCCESS(::NtQuerySystemInformation(SystemTimeOfDayInformation,&info,sizeof(info),nullptr)))
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time = info.BootTime.QuadPart;
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}
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return time;
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}
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int WinSys::SetLastStatus(int status) {
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LastStatus = status;
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return status;
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}
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int WinSys::GetLastStatus() {
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return LastStatus;
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}
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std::string SystemInformation::GetCpuBrand() {
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char brand[49] = { 0 };
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auto status = ::NtQuerySystemInformation(SystemProcessorBrandString, brand, sizeof(brand), nullptr);
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assert(NT_SUCCESS(status));
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std::string cpuBrand(brand);
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return cpuBrand;
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}
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