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/*
* Copyright (C) 2018 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 SRC_TRACE_PROCESSOR_CHUNKED_TRACE_READER_H_
#define SRC_TRACE_PROCESSOR_CHUNKED_TRACE_READER_H_
#include <stddef.h>
#include <stdint.h>
#include <memory>
#include "perfetto/trace_processor/basic_types.h"
#include "perfetto/trace_processor/status.h"
namespace perfetto {
namespace trace_processor {
// Base interface for first stage of parsing pipeline
// (JsonTraceParser, ProtoTraceReader).
class ChunkedTraceReader {
public:
virtual ~ChunkedTraceReader();
// Pushes more data into the trace parser. There is no requirement for the
// caller to match line/protos boundaries. The parser class has to deal with
// intermediate buffering lines/protos that span across different chunks.
// The buffer size is guaranteed to be > 0.
virtual util::Status Parse(std::unique_ptr<uint8_t[]>, size_t) = 0;
// Called after the last Parse() call.
virtual void NotifyEndOfFile() = 0;
};
} // namespace trace_processor
} // namespace perfetto
#endif // SRC_TRACE_PROCESSOR_CHUNKED_TRACE_READER_H_