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79f6b4823b
Have classes contain only a single private member of type PointerHolder<Members>. This makes it safe to change the structure of the Members class without breaking binary compatibility. Many of the classes already follow this pattern quite successfully. This brings in the rest of the class that are part of the public API.
80 lines
2.0 KiB
C++
80 lines
2.0 KiB
C++
// Copyright (c) 2005-2019 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");
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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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// Versions of qpdf prior to version 7 were released under the terms
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// of version 2.0 of the Artistic License. At your option, you may
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// continue to consider qpdf to be licensed under those terms. Please
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// 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>
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#include <stddef.h>
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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
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// will be freed when the Buffer object is destroyed.
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QPDF_DLL
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Buffer(size_t size);
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// Create a Buffer object whose memory is owned by the caller and
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// will not be freed when the 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(Buffer const&);
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QPDF_DLL
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Buffer& operator=(Buffer const&);
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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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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(Members const&);
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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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PointerHolder<Members> m;
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};
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#endif // BUFFER_HH
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