mirror of https://github.com/qpdf/qpdf.git
98 lines
2.7 KiB
C++
98 lines
2.7 KiB
C++
// Copyright (c) 2005-2024 Jay Berkenbilt
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//
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// This file is part of qpdf.
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
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// in compliance with the License. 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 distributed under the License
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// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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// or implied. See the License for the specific language governing permissions and limitations under
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// the License.
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//
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// Versions of qpdf prior to version 7 were released under the terms of version 2.0 of the Artistic
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// License. At your option, you may continue to consider qpdf to be licensed under those terms.
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// Please see the manual for additional information.
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#ifndef BUFFER_HH
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#define BUFFER_HH
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#include <qpdf/DLL.h>
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#include <qpdf/PointerHolder.hh> // unused -- remove in qpdf 12 (see #785)
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#include <cstddef>
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#include <memory>
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#include <string>
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class Buffer
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{
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public:
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QPDF_DLL
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Buffer();
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// Create a Buffer object whose memory is owned by the class and will be freed when the Buffer
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// object is destroyed.
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QPDF_DLL
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Buffer(size_t size);
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QPDF_DLL
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Buffer(std::string&& content);
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// Create a Buffer object whose memory is owned by the caller and will not be freed when the
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// Buffer is destroyed.
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QPDF_DLL
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Buffer(unsigned char* buf, size_t size);
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QPDF_DLL
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Buffer(std::string& content);
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[[deprecated("Move Buffer or use Buffer::copy instead")]] QPDF_DLL Buffer(Buffer const&);
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[[deprecated("Move Buffer or use Buffer::copy instead")]] QPDF_DLL Buffer&
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operator=(Buffer const&);
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QPDF_DLL
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Buffer(Buffer&&) noexcept;
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QPDF_DLL
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Buffer& operator=(Buffer&&) noexcept;
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QPDF_DLL
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size_t getSize() const;
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QPDF_DLL
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unsigned char const* getBuffer() const;
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QPDF_DLL
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unsigned char* getBuffer();
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// Create a new copy of the Buffer. The new Buffer owns an independent copy of the data.
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QPDF_DLL
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Buffer copy() const;
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// Only used during CI testing.
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// ABI: remove when removing copy constructor / assignment operator
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static void setTestMode() noexcept;
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private:
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class Members
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{
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friend class Buffer;
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public:
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QPDF_DLL
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~Members();
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private:
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Members(size_t size, unsigned char* buf, bool own_memory);
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Members(std::string&& content);
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Members(Members const&) = delete;
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std::string str;
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bool own_memory;
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size_t size;
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unsigned char* buf;
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};
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void copy(Buffer const&);
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std::unique_ptr<Members> m;
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};
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#endif // BUFFER_HH
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