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cbae2f916b
`basic_string<unsigned char>` implies use of `char_traits<unsigned char>`. This char_traits specialization is not standard C++, and will be removed from LibC++ as of LLVM 18. To ensure continued LibC++ compatibility it needs to be removed. There are two possible replacements here: `std::string` (e.g. `std::basic_string<char>`), or `std::vector<unsigned char>`. I have opted for vector since this code is dealing with a binary buffer; though probably either way is fine (why does C++ even have strings anyway??). https://github.com/qpdf/qpdf/issues/1024
78 lines
1.6 KiB
C++
78 lines
1.6 KiB
C++
#include <qpdf/Pl_Buffer.hh>
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#include <algorithm>
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#include <cstdlib>
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#include <cstring>
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#include <stdexcept>
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Pl_Buffer::Pl_Buffer(char const* identifier, Pipeline* next) :
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Pipeline(identifier, next),
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m(new Members())
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{
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}
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Pl_Buffer::~Pl_Buffer() // NOLINT (modernize-use-equals-default)
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{
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// Must be explicit and not inline -- see QPDF_DLL_CLASS in README-maintainer
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}
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void
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Pl_Buffer::write(unsigned char const* buf, size_t len)
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{
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m->data.insert(m->data.end(), buf, buf + len);
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m->ready = false;
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if (getNext(true)) {
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getNext()->write(buf, len);
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}
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}
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void
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Pl_Buffer::finish()
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{
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m->ready = true;
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if (getNext(true)) {
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getNext()->finish();
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}
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}
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Buffer*
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Pl_Buffer::getBuffer()
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{
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if (!m->ready) {
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throw std::logic_error("Pl_Buffer::getBuffer() called when not ready");
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}
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auto size = m->data.size();
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auto* b = new Buffer(size);
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if (size > 0) {
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unsigned char* p = b->getBuffer();
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memcpy(p, m->data.data(), size);
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}
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m->data.clear();
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return b;
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}
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std::shared_ptr<Buffer>
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Pl_Buffer::getBufferSharedPointer()
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{
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return std::shared_ptr<Buffer>(getBuffer());
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}
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void
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Pl_Buffer::getMallocBuffer(unsigned char** buf, size_t* len)
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{
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if (!m->ready) {
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throw std::logic_error("Pl_Buffer::getMallocBuffer() called when not ready");
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}
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auto size = m->data.size();
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*len = size;
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if (size > 0) {
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*buf = reinterpret_cast<unsigned char*>(malloc(size));
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memcpy(*buf, m->data.data(), size);
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} else {
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*buf = nullptr;
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}
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m->data.clear();
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}
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