/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef SRC_TRACE_PROCESSOR_CHUNKED_TRACE_READER_H_
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#define SRC_TRACE_PROCESSOR_CHUNKED_TRACE_READER_H_
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#include <stddef.h>
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#include <stdint.h>
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#include <memory>
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namespace perfetto {
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namespace trace_processor {
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// Base interface for first stage of parsing pipeline
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// (JsonTraceParser, ProtoTraceTokenizer).
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class ChunkedTraceReader {
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public:
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virtual ~ChunkedTraceReader();
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// Pushes more data into the trace parser. There is no requirement for the
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// caller to match line/protos boundaries. The parser class has to deal with
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// intermediate buffering lines/protos that span across different chunks.
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// The buffer size is guaranteed to be > 0.
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// Returns true if the data has been succesfully parsed, false if some
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// unrecoverable parsing error happened and no more chunks should be pushed.
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virtual bool Parse(std::unique_ptr<uint8_t[]>, size_t) = 0;
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};
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} // namespace trace_processor
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} // namespace perfetto
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#endif // SRC_TRACE_PROCESSOR_CHUNKED_TRACE_READER_H_
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