InputBufferWrapper.h

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// Copyright 2024 libsese
//
// 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.
 
#pragma once
 
#include "sese/io/InputStream.h"
#include "sese/io/OutputStream.h"
#include "sese/io/PeekableStream.h"
 
namespace sese::io {
 
// GCOVR_EXCL_START
 
class  InputBufferWrapper final : public InputStream, public PeekableStream {
public:
    InputBufferWrapper(const char *buffer, size_t cap);
 
    int64_t read(void *buffer, size_t length) override;
 
    int64_t peek(void *buffer, size_t length) override;
 
    int64_t trunc(size_t length) override;
 
    void reset() noexcept;
 
    [[nodiscard]] const char *getBuffer() const;
    [[nodiscard]] size_t getLength() const;
    [[nodiscard]] size_t getCapacity() const;
 
protected:
    const char *buffer = nullptr;
    size_t pos = 0;
    size_t cap = 0;
};
 
// GCOVR_EXCL_STOP
 
} // namespace sese::io
 
int64_t operator<<(sese::io::OutputStream &out, sese::io::InputBufferWrapper &input) noexcept;
 
int64_t operator<<(sese::io::OutputStream *out, sese::io::InputBufferWrapper &input) noexcept;