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/*
* Copyright (C) 2017 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";
option optimize_for = LITE_RUNTIME;
package perfetto.protos;
import "protos/perfetto/common/gpu_counter_descriptor.proto";
import "protos/perfetto/common/track_event_descriptor.proto";
// This message is sent from Producer(s) to the tracing Service when registering
// to advertise their capabilities. It describes the structure of tracing
// protos that will be produced by the data source and the supported filters.
message DataSourceDescriptor {
optional string name = 1; // e.g., "linux.ftrace", "chromium.tracing"
// When true the data source is expected to ack the stop request through the
// NotifyDataSourceStopped() IPC. This field has been introduced after
// Android P in Jul 2018 and is not supported on older versions.
optional bool will_notify_on_stop = 2;
// When true the data source is expected to ack the start request through the
// NotifyDataSourceStarted() IPC. This field has been introduced after
// Android P in March 2019 and is not supported on older versions.
optional bool will_notify_on_start = 3;
// If true, opt into receiving the ClearIncrementalState() IPC. This should be
// set if the data source writes packets that refer to previous trace
// contents, and knows how to stop referring to the already-emitted data.
optional bool handles_incremental_state_clear = 4;
// Optional specification about available GPU counters.
optional GpuCounterDescriptor gpu_counter_descriptor = 5 [lazy = true];
optional TrackEventDescriptor track_event_descriptor = 6 [lazy = true];
}
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