/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef SRC_ANDROID_INTERNAL_POWER_STATS_HAL_H_
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#define SRC_ANDROID_INTERNAL_POWER_STATS_HAL_H_
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#include <stddef.h>
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#include <stdint.h>
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// This header declares proxy functions defined in
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// libperfetto_android_internal.so that allow traced_probes to access internal
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// android functions (e.g., hwbinder).
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// Do not add any include to either perfetto headers or android headers. See
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// README.md for more.
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namespace perfetto {
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namespace android_internal {
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struct RailDescriptor {
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// Index corresponding to the rail
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uint32_t index;
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// Name of the rail
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char rail_name[64];
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// Name of the subsystem to which this rail belongs
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char subsys_name[64];
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// Hardware sampling rate
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uint32_t sampling_rate;
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};
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struct RailEnergyData {
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// Index corresponding to RailDescriptor.index
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uint32_t index;
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// Time since device boot(CLOCK_BOOTTIME) in milli-seconds
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uint64_t timestamp;
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// Accumulated energy since device boot in microwatt-seconds (uWs)
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uint64_t energy;
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};
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extern "C" {
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// These functions are not thread safe unless specified otherwise.
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bool __attribute__((visibility("default")))
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GetAvailableRails(RailDescriptor*, size_t* size_of_arr);
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bool __attribute__((visibility("default")))
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GetRailEnergyData(RailEnergyData*, size_t* size_of_arr);
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} // extern "C"
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} // namespace android_internal
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} // namespace perfetto
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#endif // SRC_ANDROID_INTERNAL_POWER_STATS_HAL_H_
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