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Object stastistics (first part)

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Jakub Melka
2021-06-18 19:06:11 +02:00
parent 7264a45e30
commit b8464ed4fa
18 changed files with 530 additions and 26 deletions
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18
Pdf4QtLib/sources/pdfvisitor.h
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@@ -92,7 +92,13 @@ public:
struct Statistics
{
explicit constexpr Statistics() = default;
inline constexpr Statistics() :
count(0),
memoryConsumptionEstimate(0),
memoryOverheadEstimate(0)
{
}
/// This constructor must not be used while \p other is write-accessed from another thread.
/// We use relaxed memory order, because we assume this constructor is used only while
@@ -106,9 +112,9 @@ public:
}
std::atomic_uint64_t count = 0;
std::atomic_uint64_t memoryConsumptionEstimate = 0;
std::atomic_uint64_t memoryOverheadEstimate = 0;
std::atomic<qint64> count = 0;
std::atomic<qint64> memoryConsumptionEstimate = 0;
std::atomic<qint64> memoryOverheadEstimate = 0;
};
virtual void visitNull() override;
@@ -122,12 +128,14 @@ public:
virtual void visitStream(const PDFStream* stream) override;
virtual void visitReference(const PDFObjectReference reference) override;
qint64 getObjectCount(PDFObject::Type type) const { return m_statistics[size_t(type)].count; }
private:
void collectStatisticsOfSimpleObject(PDFObject::Type type);
void collectStatisticsOfString(const PDFString* string, Statistics& statistics);
void collectStatisticsOfDictionary(Statistics& statistics, const PDFDictionary* dictionary);
std::map<PDFObject::Type, Statistics> m_statistics;
std::array<Statistics, size_t(PDFObject::Type::LastType)> m_statistics = { };
};
template<typename Visitor, PDFAbstractVisitor::Strategy strategy>