Pl_Count.cc
1.09 KB
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#include <qpdf/Pl_Count.hh>
#include <qpdf/QIntC.hh>
class Pl_Count::Members
{
public:
Members() = default;
Members(Members const&) = delete;
~Members() = default;
// Must be qpdf_offset_t, not size_t, to handle writing more than size_t can handle.
qpdf_offset_t count{0};
unsigned char last_char{'\0'};
};
Pl_Count::Pl_Count(char const* identifier, Pipeline* next) :
Pipeline(identifier, next),
m(std::make_unique<Members>())
{
if (!next) {
throw std::logic_error("Attempt to create Pl_Count with nullptr as next");
}
}
Pl_Count::~Pl_Count() // NOLINT (modernize-use-equals-default)
{
// Must be explicit and not inline -- see QPDF_DLL_CLASS in README-maintainer
}
void
Pl_Count::write(unsigned char const* buf, size_t len)
{
if (len) {
m->count += QIntC::to_offset(len);
m->last_char = buf[len - 1];
next()->write(buf, len);
}
}
void
Pl_Count::finish()
{
next()->finish();
}
qpdf_offset_t
Pl_Count::getCount() const
{
return m->count;
}
unsigned char
Pl_Count::getLastChar() const
{
return m->last_char;
}