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