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// Copyright 2023 The Pigweed Authors
//
// 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
//
// https://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 = "proto3";
package pw.trace.proto;
import "pw_chrono_protos/chrono.proto";
// TODO: b/309643763 - This is the prefered service for tracing, and the service
// defined in trace_rpc.proto has been deprecated and will be removed once
// existings clients migrate to this service.
service TraceService {
// Start will enable tracing, populating the trace ring buffer.
rpc Start(StartRequest) returns (StartResponse) {}
// On stop the ring buffer will be written to the configured
// stream. No data is written to the stream until Stop is called.
rpc Stop(StopRequest) returns (StopResponse) {}
// Returns the clock paramaters of the system.
rpc GetClockParameters(ClockParametersRequest)
returns (ClockParametersResponse) {}
}
message StartRequest {}
message StartResponse {}
message StopRequest {}
message StopResponse {
// as a convenience, the file id is returned on stop which can be
// used to start a transfer directly, rather that requiring a user
// list the files to obtain the file id.
optional uint32 file_id = 1;
}
message ClockParametersRequest {}
message ClockParametersResponse {
pw.chrono.ClockParameters clock_parameters = 1;
}
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