Bob Owen
90a4b8659b
This removes the dependency for ipc/chromium files from this part, so that it can be used in places where this will cause conflicts. Differential Revision: https://phabricator.services.mozilla.com/D257479
32 lines
889 B
C++
32 lines
889 B
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "CpuInfo.h"
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#include <windows.h>
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namespace mozilla {
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int GetCpuFrequencyMHz() {
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static const int frequency = []() {
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// Get the nominal CPU frequency.
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DWORD data;
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DWORD len = sizeof(data);
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if (::RegGetValueW(HKEY_LOCAL_MACHINE,
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LR"(HARDWARE\DESCRIPTION\System\CentralProcessor\0)",
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L"~Mhz", RRF_RT_REG_DWORD, nullptr, &data,
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&len) == ERROR_SUCCESS) {
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return static_cast<int>(data);
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}
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return 0;
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}();
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return frequency;
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}
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} // namespace mozilla
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