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// Copyright 2018 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once
#include <inttypes.h>
namespace android {
namespace base {
// CPU usage tracking
struct CpuTime {
uint64_t wall_time_us = 0;
uint64_t user_time_us = 0;
uint64_t system_time_us = 0;
CpuTime& operator-=(const CpuTime& other);
uint64_t usageUs() const;
// Usage proportion; convert to percent by
// multiplying by 100.
float usage() const;
float usageUser() const;
float usageSystem() const;
};
CpuTime operator-(const CpuTime& a, const CpuTime& b);
} // namespace base
} // namespace android
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