mirror of
https://github.com/qpdf/qpdf.git
synced 2024-12-22 19:08:59 +00:00
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>
|
|
|
|
#include <string.h>
|
|
|
|
Buffer::Buffer()
|
|
{
|
|
init(0, 0, true);
|
|
}
|
|
|
|
Buffer::Buffer(size_t size)
|
|
{
|
|
init(size, 0, true);
|
|
}
|
|
|
|
Buffer::Buffer(unsigned char* buf, size_t size)
|
|
{
|
|
init(size, buf, false);
|
|
}
|
|
|
|
Buffer::Buffer(Buffer const& rhs)
|
|
{
|
|
init(0, 0, true);
|
|
copy(rhs);
|
|
}
|
|
|
|
Buffer&
|
|
Buffer::operator=(Buffer const& rhs)
|
|
{
|
|
copy(rhs);
|
|
return *this;
|
|
}
|
|
|
|
Buffer::~Buffer()
|
|
{
|
|
destroy();
|
|
}
|
|
|
|
void
|
|
Buffer::init(size_t size, unsigned char* buf, bool own_memory)
|
|
{
|
|
this->own_memory = own_memory;
|
|
this->size = size;
|
|
if (own_memory)
|
|
{
|
|
this->buf = (size ? new unsigned char[size] : 0);
|
|
}
|
|
else
|
|
{
|
|
this->buf = buf;
|
|
}
|
|
}
|
|
|
|
void
|
|
Buffer::copy(Buffer const& rhs)
|
|
{
|
|
if (this != &rhs)
|
|
{
|
|
this->destroy();
|
|
this->init(rhs.size, 0, true);
|
|
if (this->size)
|
|
{
|
|
memcpy(this->buf, rhs.buf, this->size);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
Buffer::destroy()
|
|
{
|
|
if (this->own_memory)
|
|
{
|
|
delete [] this->buf;
|
|
}
|
|
this->size = 0;
|
|
this->buf = 0;
|
|
}
|
|
|
|
size_t
|
|
Buffer::getSize() const
|
|
{
|
|
return this->size;
|
|
}
|
|
|
|
unsigned char const*
|
|
Buffer::getBuffer() const
|
|
{
|
|
return this->buf;
|
|
}
|
|
|
|
unsigned char*
|
|
Buffer::getBuffer()
|
|
{
|
|
return this->buf;
|
|
}
|