mirror of
https://github.com/qpdf/qpdf.git
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5d4cad9c02
Significantly improve the code's use of off_t for file offsets, size_t for memory sizes, and integer types in cases where there has to be compatibility with external interfaces. Rework sections of the code that would have prevented qpdf from working on files larger than 2 (or maybe 4) GB in size.
95 lines
1.2 KiB
C++
95 lines
1.2 KiB
C++
#include <qpdf/Buffer.hh>
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#include <string.h>
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Buffer::Buffer()
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{
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init(0, 0, true);
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}
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Buffer::Buffer(size_t size)
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{
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init(size, 0, true);
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}
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Buffer::Buffer(unsigned char* buf, size_t size)
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{
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init(size, buf, false);
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}
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Buffer::Buffer(Buffer const& rhs)
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{
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init(0, 0, true);
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copy(rhs);
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}
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Buffer&
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Buffer::operator=(Buffer const& rhs)
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{
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copy(rhs);
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return *this;
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}
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Buffer::~Buffer()
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{
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destroy();
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}
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void
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Buffer::init(size_t size, unsigned char* buf, bool own_memory)
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{
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this->own_memory = own_memory;
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this->size = size;
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if (own_memory)
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{
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this->buf = (size ? new unsigned char[size] : 0);
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}
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else
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{
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this->buf = buf;
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}
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}
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void
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Buffer::copy(Buffer const& rhs)
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{
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if (this != &rhs)
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{
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this->destroy();
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this->init(rhs.size, 0, true);
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if (this->size)
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{
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memcpy(this->buf, rhs.buf, this->size);
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}
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}
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}
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void
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Buffer::destroy()
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{
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if (this->own_memory)
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{
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delete [] this->buf;
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}
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this->size = 0;
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this->buf = 0;
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}
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size_t
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Buffer::getSize() const
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{
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return this->size;
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}
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unsigned char const*
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Buffer::getBuffer() const
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{
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return this->buf;
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}
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unsigned char*
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Buffer::getBuffer()
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{
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return this->buf;
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}
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