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/*
* Copyright (C) 2020 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;
// Events emitted by the tracing service when data source states change.
message TracingServiceEvent {
oneof event_type {
// When this is set to true, reports the point in time (the TracePacket's
// timestamp) when all data sources did see the start event and ACKed it.
// This identifies the point in time when it's safe to assume tha all data
// sources have been recording events.
// Note: like any other event in the trace, the byte offset at which this
// packet shows up in the trace is arbitrary and doesn't reflect causal
// ordering (i.e. it's okay to use this event to reason about the timestamps
// of othe packets, NOT their relative order w.r.t. this packet).
bool all_data_sources_started = 1;
}
}
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