101 lines
2.9 KiB
C++
101 lines
2.9 KiB
C++
/*
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* Copyright (C) 2022 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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#pragma once
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#include <aidl/android/hardware/contexthub/ContextHubMessage.h>
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#include <aidl/android/hardware/contexthub/NanoappBinary.h>
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#include <optional>
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#include <string>
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#include "chre/util/array_queue.h"
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#include "chre/util/non_copyable.h"
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#include "chre_host/generated/host_messages_generated.h"
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namespace aidl::android::hardware::contexthub {
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/**
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* Logs HAL events.
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*
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* The logged events are store in a fixed size queue. When the number of logged
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* events exceed the size of the queue, older events are deleted.
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*/
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class EventLogger {
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public:
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/** Maximum number of load and unload events to store. */
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static constexpr int kMaxNanoappEvents = 20;
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/** Maximum number of Context Hub restart events to store. */
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static constexpr int kMaxRestartEvents = 20;
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/** Maximum number of message events to store. */
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static constexpr int kMaxMessageEvents = 20;
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void logNanoappLoad(const NanoappBinary &app, bool success);
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void logNanoappUnload(int64_t appId, bool success);
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void logContextHubRestart();
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void logMessageToNanoapp(const ContextHubMessage &message, bool success);
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void logMessageFromNanoapp(const ::chre::fbs::NanoappMessageT &message);
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/** Returns a textual representation of the logged events. */
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std::string dump() const;
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protected:
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struct NanoappLoad {
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int64_t timestampMs;
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int64_t id;
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int32_t version;
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size_t sizeBytes;
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bool success;
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};
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struct NanoappUnload {
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int64_t timestampMs;
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int64_t id;
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bool success;
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};
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struct NanoappMessage {
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int64_t timestampMs;
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int64_t id;
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size_t sizeBytes;
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bool success;
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};
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::chre::ArrayQueue<NanoappLoad, kMaxNanoappEvents> mNanoappLoads;
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::chre::ArrayQueue<NanoappUnload, kMaxNanoappEvents> mNanoappUnloads;
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::chre::ArrayQueue<int64_t, kMaxRestartEvents> mContextHubRestarts;
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::chre::ArrayQueue<NanoappMessage, kMaxMessageEvents> mMsgToNanoapp;
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::chre::ArrayQueue<NanoappMessage, kMaxMessageEvents> mMsgFromNanoapp;
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/**
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* Current time in milliseconds.
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* Override the current time when a value is provided.
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* Used for tests.
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*/
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std::optional<int64_t> mNowMs;
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private:
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/** Protects concurrent reads and writes to the queue. */
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mutable std::mutex mQueuesMutex;
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/** Returns the current time in milliseconds */
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int64_t getTimeMs() const;
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};
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} // namespace aidl::android::hardware::contexthub
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