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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.
*/
#ifndef INCLUDE_PERFETTO_TRACING_CORE_CONSUMER_H_
#define INCLUDE_PERFETTO_TRACING_CORE_CONSUMER_H_
#include "perfetto/tracing/core/basic_types.h"
#include <vector>
namespace perfetto {
class TracePacket;
class Consumer {
public:
virtual ~Consumer();
// Called by Service (or more typically by the transport layer, on behalf of
// the remote Service), once the Consumer <> Service connection has been
// established.
virtual void OnConnect() = 0;
// Called by the Service or by the transport layer if the connection with the
// service drops, either voluntarily (e.g., by destroying the ConsumerEndpoint
// obtained through Service::ConnectConsumer()) or involuntarily (e.g., if the
// Service process crashes).
virtual void OnDisconnect() = 0;
// Called by the Service after the tracing session has ended. This can happen
// for a variety of reasons:
// - The consumer explicitly called DisableTracing()
// - The TraceConfig's |duration_ms| has been reached.
// - The TraceConfig's |max_file_size_bytes| has been reached.
// - An error occurred while trying to enable tracing.
virtual void OnTracingDisabled() = 0;
// Called back by the Service (or transport layer) after invoking
// Service::ConsumerEndpoint::ReadBuffers(). This function can be called more
// than once. Each invocation can carry one or more TracePacket(s).
// Upon the last call, |has_more| is set to true (i.e. |has_more| is a !EOF).
virtual void OnTraceData(std::vector<TracePacket>, bool has_more) = 0;
};
} // namespace perfetto
#endif // INCLUDE_PERFETTO_TRACING_CORE_CONSUMER_H_
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