77209caf04
When there is partial message in reader, popping out the characters lead to parse errors on the subsequent attempt to parse. To avoid this, the last matched characters' index is stored during parsing and reset on error.
70 lines
1.6 KiB
C++
70 lines
1.6 KiB
C++
// Copyright 2019 Google LLC
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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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// https://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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#ifndef dap_content_stream_h
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#define dap_content_stream_h
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#include <deque>
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#include <memory>
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#include <string>
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#include <stdint.h>
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namespace dap {
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// Forward declarations
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class Reader;
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class Writer;
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class ContentReader {
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public:
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ContentReader() = default;
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ContentReader(const std::shared_ptr<Reader>&);
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ContentReader& operator=(ContentReader&&) noexcept;
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bool isOpen();
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void close();
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std::string read();
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private:
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bool scan(const uint8_t* seq, size_t len);
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bool scan(const char* str);
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bool match(const uint8_t* seq, size_t len);
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bool match(const char* str);
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char matchAny(const char* chars);
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bool buffer(size_t bytes);
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std::shared_ptr<Reader> reader;
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std::deque<uint8_t> buf;
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uint32_t matched_idx = 0;
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};
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class ContentWriter {
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public:
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ContentWriter() = default;
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ContentWriter(const std::shared_ptr<Writer>&);
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ContentWriter& operator=(ContentWriter&&) noexcept;
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bool isOpen();
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void close();
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bool write(const std::string&) const;
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private:
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std::shared_ptr<Writer> writer;
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};
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} // namespace dap
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#endif // dap_content_stream_h
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