chromium/third_party/perfetto/include/perfetto/tracing/event_context.h

/*
 * Copyright (C) 2019 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.
 */

#ifndef INCLUDE_PERFETTO_TRACING_EVENT_CONTEXT_H_
#define INCLUDE_PERFETTO_TRACING_EVENT_CONTEXT_H_

#include "perfetto/protozero/message_handle.h"
#include "perfetto/tracing/internal/track_event_internal.h"
#include "perfetto/tracing/traced_proto.h"
#include "protos/perfetto/trace/trace_packet.pbzero.h"

namespace perfetto {
namespace protos {
namespace pbzero {
class DebugAnnotation;
}  // namespace pbzero
}  // namespace protos

namespace internal {
class TrackEventInternal;
}

// Allows adding custom arguments into track events. Example:
//
//   TRACE_EVENT_BEGIN("category", "Title",
//                     [](perfetto::EventContext ctx) {
//                       auto* log = ctx.event()->set_log_message();
//                       log->set_body_iid(1234);
//
//                       ctx.AddDebugAnnotation("name", 1234);
//                     });
//
class PERFETTO_EXPORT_COMPONENT EventContext { … };

}  // namespace perfetto

#endif  // INCLUDE_PERFETTO_TRACING_EVENT_CONTEXT_H_