mirror of https://github.com/qpdf/qpdf.git
79 lines
1.5 KiB
C++
79 lines
1.5 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()
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{
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// Must be explicit and not inline -- see QPDF_DLL_CLASS in
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// 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.append(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.length();
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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.length();
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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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