| /* |
| * Copyright (C) 2017 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 "frameworks/base/cmds/statsd/src/stats_log.pb.h" |
| |
| #include <utils/Errors.h> |
| #include <log/log_event_list.h> |
| #include <log/log_read.h> |
| |
| #include <string> |
| #include <vector> |
| |
| namespace android { |
| namespace os { |
| namespace statsd { |
| |
| using std::string; |
| using std::vector; |
| |
| /** |
| * Wrapper for the log_msg structure. |
| */ |
| class LogEvent { |
| public: |
| /** |
| * Read a LogEvent from a log_msg. |
| */ |
| explicit LogEvent(const log_msg& msg); |
| |
| /** |
| * Read a LogEvent from an android_log_context. |
| */ |
| explicit LogEvent(int64_t timestampNs, android_log_event_list* reader); |
| ~LogEvent(); |
| |
| /** |
| * Get the timestamp associated with this event. |
| */ |
| uint64_t GetTimestampNs() const { return mTimestampNs; } |
| |
| /** |
| * Get the tag for this event. |
| */ |
| int GetTagId() const { return mTagId; } |
| |
| /** |
| * Get the nth value, starting at 1. |
| * |
| * Returns BAD_INDEX if the index is larger than the number of elements. |
| * Returns BAD_TYPE if the index is available but the data is the wrong type. |
| */ |
| int64_t GetLong(size_t key, status_t* err) const; |
| const char* GetString(size_t key, status_t* err) const; |
| bool GetBool(size_t key, status_t* err) const; |
| float GetFloat(size_t key, status_t* err) const; |
| |
| /** |
| * Return a string representation of this event. |
| */ |
| string ToString() const; |
| |
| /** |
| * Write this object as an EventMetricData proto object. |
| * TODO: Use the streaming output generator to do this instead of this proto lite object? |
| */ |
| void ToProto(EventMetricData* out) const; |
| |
| /* |
| * Get a KeyValuePair proto object. |
| */ |
| KeyValuePair GetKeyValueProto(size_t key) const; |
| |
| private: |
| /** |
| * Don't copy, it's slower. If we really need this we can add it but let's try to |
| * avoid it. |
| */ |
| explicit LogEvent(const LogEvent&); |
| |
| /** |
| * Parses a log_msg into a LogEvent object. |
| */ |
| void init(const log_msg& msg); |
| |
| /** |
| * Parses a log_msg into a LogEvent object. |
| */ |
| void init(int64_t timestampNs, android_log_event_list* reader); |
| |
| vector<android_log_list_element> mElements; |
| long mTimestampNs; |
| int mTagId; |
| }; |
| |
| } // namespace statsd |
| } // namespace os |
| } // namespace android |
| |