QxOrm 1.4.9
C++ Object Relational Mapping library
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QxSerialize_QSharedPointer.h
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31
32#ifdef _QX_ENABLE_BOOST_SERIALIZATION
33#ifndef _QX_SERIALIZE_QSHAREDPOINTER_H_
34#define _QX_SERIALIZE_QSHAREDPOINTER_H_
35
36#ifdef _MSC_VER
37#pragma once
38#endif
39
40#include <boost/serialization/serialization.hpp>
41#include <boost/serialization/split_free.hpp>
42#include <boost/serialization/nvp.hpp>
43
44#include <QtCore/qsharedpointer.h>
45#include <QtCore/QWeakPointer>
46#include <QtCore/qhash.h>
47
48namespace boost {
49namespace serialization {
50
51template <class Archive, typename T>
52inline void save(Archive & ar, const QSharedPointer<T> & t, const unsigned int file_version)
53{
54 Q_UNUSED(file_version);
55 const T * ptr = t.data();
56 ar << boost::serialization::make_nvp("qt_shared_ptr", ptr);
57}
58
59template <class Archive, typename T>
60inline void load(Archive & ar, QSharedPointer<T> & t, const unsigned int file_version)
61{
62 Q_UNUSED(file_version);
63 static QHash<void *, QWeakPointer<T> > listOfWeakPointers;
64 T * ptr = NULL; ar >> boost::serialization::make_nvp("qt_shared_ptr", ptr);
65 if (! ptr) { t = QSharedPointer<T>(); return; }
66
67 void * pVoid = static_cast<void *>(ptr);
68 QSharedPointer<T> pShared = (listOfWeakPointers.contains(pVoid) ? listOfWeakPointers.value(pVoid).toStrongRef() : QSharedPointer<T>());
69 if (pShared) { t = pShared; return; }
70 t = QSharedPointer<T>(ptr);
71 QWeakPointer<T> pWeak = t;
72 listOfWeakPointers.insert(pVoid, pWeak);
73
74 static int iLoadCount = 0;
75 iLoadCount++; if (iLoadCount <= 1000) { return; }
76 QMutableHashIterator<void *, QWeakPointer<T> > itr(listOfWeakPointers);
77 while (itr.hasNext()) { itr.next(); if (itr.value().isNull()) { itr.remove(); } }
78 iLoadCount = 0;
79}
80
81template <class Archive, typename T>
82inline void serialize(Archive & ar, QSharedPointer<T> & t, const unsigned int file_version)
83{
84 boost::serialization::split_free(ar, t, file_version);
85}
86
87} // namespace boost
88} // namespace serialization
89
90#endif // _QX_SERIALIZE_QSHAREDPOINTER_H_
91#endif // _QX_ENABLE_BOOST_SERIALIZATION
void serialize(Archive &ar, boost::tuple< T0, T1 > &t, const unsigned int file_version)
void load(Archive &ar, boost::unordered_map< Key, Value > &t, const unsigned int)
void save(Archive &ar, const boost::unordered_map< Key, Value > &t, const unsigned int)