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Split QPDF member file into file and file_sp to facilitate aliasing

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To be encapsulated later.
This commit is contained in:
m-holger 2024-09-05 14:50:38 +01:00
parent db06e075ea
commit b1d845e708
2 changed files with 15 additions and 8 deletions
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19
libqpdf/QPDF.cc
View File

@ -198,7 +198,8 @@ QPDF::EncryptionParameters::EncryptionParameters() :
QPDF::Members::Members(QPDF& qpdf) :
log(QPDFLogger::defaultLogger()),
file(new InvalidInputSource()),
file_sp(new InvalidInputSource()),
file(file_sp.get()),
encp(new EncryptionParameters),
xref_table(qpdf)
{
@ -272,14 +273,16 @@ QPDF::processMemoryFile(
void
QPDF::processInputSource(std::shared_ptr<InputSource> source, char const* password)
{
m->file = source;
m->file_sp = source;
m->file = source.get();
parse(password);
}
void
QPDF::closeInputSource()
{
m->file = std::shared_ptr<InputSource>(new InvalidInputSource());
m->file_sp = std::shared_ptr<InputSource>(new InvalidInputSource());
m->file = m->file_sp.get();
}
void
@ -412,7 +415,9 @@ QPDF::findHeader()
// PDF header, all explicit offsets in the file are such that 0 points to the beginning
// of the header.
QTC::TC("qpdf", "QPDF global offset");
m->file = std::shared_ptr<InputSource>(new OffsetInputSource(m->file, global_offset));
m->file_sp =
std::shared_ptr<InputSource>(new OffsetInputSource(m->file_sp, global_offset));
m->file = m->file_sp.get();
}
}
return valid;
@ -1541,7 +1546,7 @@ QPDF::readStream(QPDFObjectHandle& object, QPDFObjGen og, qpdf_offset_t offset)
} catch (QPDFExc& e) {
if (m->attempt_recovery) {
warn(e);
length = recoverStreamLength(m->file, og, stream_offset);
length = recoverStreamLength(m->file_sp, og, stream_offset);
} else {
throw;
}
@ -2452,7 +2457,7 @@ QPDF::copyStreamData(QPDFObjectHandle result, QPDFObjectHandle foreign)
} else {
auto foreign_stream_data = std::make_shared<ForeignStreamData>(
foreign_stream_qpdf.m->encp,
foreign_stream_qpdf.m->file,
foreign_stream_qpdf.m->file_sp,
foreign.getObjGen(),
stream->getParsedOffset(),
stream->getLength(),
@ -2776,7 +2781,7 @@ QPDF::pipeStreamData(
{
return pipeStreamData(
m->encp,
m->file,
m->file_sp,
*this,
og,
offset,

4
libqpdf/qpdf/QPDF_private.hh
View File

@ -528,7 +528,9 @@ class QPDF::Members
std::shared_ptr<QPDFLogger> log;
unsigned long long unique_id{0};
QPDFTokenizer tokenizer;
std::shared_ptr<InputSource> file;
// If file_sp is updated, file must also be updated.
std::shared_ptr<InputSource> file_sp;
InputSource* file;
std::string last_object_description;
bool provided_password_is_hex_key{false};
bool suppress_warnings{false};