| /* |
| * Copyright (C) 2022 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"; |
| |
| package perfetto.protos; |
| |
| // A random unique ID that identifies the trace. |
| // This message has been introduced in v32. Prior to that, the UUID was |
| // only (optionally) present in the TraceConfig.trace_uuid_msb/lsb fields. |
| // This has been moved to a standalone packet to deal with new use-cases for |
| // go/gapless-aot, where the same tracing session can be serialized several |
| // times, in which case the UUID is changed on each snapshot and does not match |
| // the one in the TraceConfig. |
| message TraceUuid { |
| optional int64 msb = 1; |
| optional int64 lsb = 2; |
| } |