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#include <qpdf/qpdf-config.h> // include first for large file support
#include <qpdf/Pl_StdioFile.hh>
#include <qpdf/QUtil.hh>
#include <qpdf/Util.hh>
#include <cerrno>
#include <stdexcept>
using namespace qpdf;
class Pl_StdioFile::Members
{
public:
Members(FILE* f) :
file(f)
{
}
Members(Members const&) = delete;
~Members() = default;
FILE* file;
};
Pl_StdioFile::Pl_StdioFile(char const* identifier, FILE* f) :
Pipeline(identifier, nullptr),
m(std::make_unique<Members>(f))
{
}
// Must be explicit and not inline -- see QPDF_DLL_CLASS in README-maintainer
Pl_StdioFile::~Pl_StdioFile() = default;
void
Pl_StdioFile::write(unsigned char const* buf, size_t len)
{
size_t so_far = 0;
while (len > 0) {
so_far = fwrite(buf, 1, len, m->file);
if (so_far == 0) {
QUtil::throw_system_error(this->identifier + ": Pl_StdioFile::write");
} else {
buf += so_far;
len -= so_far;
}
}
}
void
Pl_StdioFile::finish()
{
util::assertion(
!(fflush(m->file) == -1 && errno == EBADF),
identifier + ": Pl_StdioFile::finish: stream already closed");
}
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