| // Copyright 2021 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CONTENT_BROWSER_COMPUTE_PRESSURE_CPUID_BASE_FREQUENCY_PARSER_H_ |
| #define CONTENT_BROWSER_COMPUTE_PRESSURE_CPUID_BASE_FREQUENCY_PARSER_H_ |
| |
| #include <stdint.h> |
| |
| #include "base/strings/string_piece.h" |
| #include "content/common/content_export.h" |
| |
| namespace content { |
| |
| // Parses the CPU's base frequency from the CPUID brand string. |
| // |
| // Returns -1 if reading failed for any reason. If successful, the returned |
| // frequency is guaranteed to be greater than zero. |
| // |
| // Some processors' brand strings don't include the base frequency. Some |
| // processors don't have brand strings altogether. |
| int64_t CONTENT_EXPORT |
| ParseBaseFrequencyFromCpuid(base::StringPiece brand_string); |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_COMPUTE_PRESSURE_CPUID_BASE_FREQUENCY_PARSER_H_ |
