Pl_Buffer.cc
1.58 KB
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#include <qpdf/Pl_Buffer.hh>
#include <algorithm>
#include <stdexcept>
#include <cstdlib>
#include <cstring>
Pl_Buffer::Pl_Buffer(char const* identifier, Pipeline* next) :
Pipeline(identifier, next),
m(new Members())
{
}
Pl_Buffer::~Pl_Buffer()
{
// Must be explicit and not inline -- see QPDF_DLL_CLASS in
// README-maintainer
}
void
Pl_Buffer::write(unsigned char const* buf, size_t len)
{
this->m->data.append(buf, len);
this->m->ready = false;
if (getNext(true)) {
getNext()->write(buf, len);
}
}
void
Pl_Buffer::finish()
{
this->m->ready = true;
if (getNext(true)) {
getNext()->finish();
}
}
Buffer*
Pl_Buffer::getBuffer()
{
if (!this->m->ready) {
throw std::logic_error("Pl_Buffer::getBuffer() called when not ready");
}
auto size = this->m->data.length();
auto* b = new Buffer(size);
if (size > 0) {
unsigned char* p = b->getBuffer();
memcpy(p, this->m->data.data(), size);
}
this->m->data.clear();
return b;
}
std::shared_ptr<Buffer>
Pl_Buffer::getBufferSharedPointer()
{
return std::shared_ptr<Buffer>(getBuffer());
}
void
Pl_Buffer::getMallocBuffer(unsigned char** buf, size_t* len)
{
if (!this->m->ready) {
throw std::logic_error(
"Pl_Buffer::getMallocBuffer() called when not ready");
}
auto size = this->m->data.length();
*len = size;
if (size > 0) {
*buf = reinterpret_cast<unsigned char*>(malloc(size));
memcpy(*buf, this->m->data.data(), size);
} else {
*buf = nullptr;
}
this->m->data.clear();
}