1// Copyright 2021 The Chromium Authors 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5syntax = "proto2"; 6 7option optimize_for = LITE_RUNTIME; 8 9package metrics.structured; 10 11import "structured_data.proto"; 12 13// These protos are used for storing key and event information for structured 14// metrics. All changes should be backwards-compatible. This file is manually 15// synced between chromium and platform2. Any changes should first be made to 16// chromium and then copied to platform2. 17// 18// chromium path: components/metrics/structured/storage.proto 19// platform2 path: metrics/structured/proto/storage.proto 20 21// All information about the key for a single project. 22message KeyProto { 23 // The key itself. 24 optional string key = 1; 25 26 // When the key was last rotated, in days since the unix epoch. 27 optional int64 last_rotation = 2; 28 29 // The maximum number of days between rotations. 30 optional int64 rotation_period = 3; 31} 32 33// Stores keys for all projects. 34message KeyDataProto { 35 // Maps the first 8 bytes of the MD5 hash of the project name to that 36 // project's key. 37 map<fixed64, KeyProto> keys = 1; 38} 39 40// On-device storage for events that have been recorded but not yet uploaded. 41message EventsProto { 42 // Events not associated with the UMA client_id. 43 repeated StructuredEventProto non_uma_events = 1; 44 45 // Events associated with the UMA client_id. 46 repeated StructuredEventProto uma_events = 2; 47} 48