1/*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17syntax = "proto2";
18
19import "frameworks/base/core/proto/android/server/windowmanagerservice.proto";
20
21package com.android.server.wm;
22
23option java_multiple_files = true;
24
25/* represents a file full of window manager trace entries.
26   Encoded, it should start with 0x9 0x57 0x49 0x4e 0x54 0x52 0x41 0x43 0x45 (.WINTRACE), such
27   that they can be easily identified. */
28message WindowManagerTraceFileProto {
29
30    /* constant; MAGIC_NUMBER = (long) MAGIC_NUMBER_H << 32 | MagicNumber.MAGIC_NUMBER_L
31       (this is needed because enums have to be 32 bits and there's no nice way to put 64bit
32        constants into .proto files. */
33    enum MagicNumber {
34        INVALID = 0;
35        MAGIC_NUMBER_L = 0x544e4957;  /* WINT (little-endian ASCII) */
36        MAGIC_NUMBER_H = 0x45434152;  /* RACE (little-endian ASCII) */
37    }
38
39    optional fixed64 magic_number = 1;  /* Must be the first field, set to value in MagicNumber */
40    repeated WindowManagerTraceProto entry = 2;
41}
42
43/* one window manager trace entry. */
44message WindowManagerTraceProto {
45    /* required: elapsed realtime in nanos since boot of when this entry was logged */
46    optional fixed64 elapsed_realtime_nanos = 1;
47
48    /* where the trace originated */
49    optional string where = 2;
50
51    optional WindowManagerServiceDumpProto window_manager_service = 3;
52}
53