platform_packages_apps_Laun.../protos/launcher_trace_file.proto

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1.7 KiB
Protocol Buffer

/*
* Copyright (C) 2019 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.
*/
syntax = "proto2";
import "launcher_trace.proto";
package com.android.launcher3.tracing;
option java_multiple_files = true;
/* represents a file full of launcher trace entries.
Encoded, it should start with 0x9 0x4C 0x4E 0x43 0x48 0x52 0x54 0x52 0x43 (.LNCHRTRC), such
that they can be easily identified. */
message LauncherTraceFileProto {
/* constant; MAGIC_NUMBER = (long) MAGIC_NUMBER_H << 32 | MagicNumber.MAGIC_NUMBER_L
(this is needed because enums have to be 32 bits and there's no nice way to put 64bit
constants into .proto files. */
enum MagicNumber {
INVALID = 0;
MAGIC_NUMBER_L = 0x48434E4C; /* LNCH (little-endian ASCII) */
MAGIC_NUMBER_H = 0x43525452; /* RTRC (little-endian ASCII) */
}
optional fixed64 magic_number = 1; /* Must be the first field, set to value in MagicNumber */
repeated LauncherTraceEntryProto entry = 2;
}
/* one launcher trace entry. */
message LauncherTraceEntryProto {
/* required: elapsed realtime in nanos since boot of when this entry was logged */
optional fixed64 elapsed_realtime_nanos = 1;
optional LauncherTraceProto launcher = 3;
}