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#ifndef PACKER_H
#define PACKER_H
#include <QtEndian>
#include <QByteArray>
#include <QString>
#include <QUuid>
#include <QVariantMap>
#include <Log4Qt/Logger>
class Packer
{
LOG4QT_DECLARE_STATIC_LOGGER(logger, Packer)
public:
Packer(QByteArray *buf);
template <typename T>
void write(T v);
template <typename T>
void writeLE(T v);
void writeBytes(int n, const QByteArray &b);
void writeFixedString(int n, const QString &s);
void writeUuid(const QUuid &uuid);
void writeDict(const QMap<int, QVariant> &d);
private:
char *p(int n);
uchar *up(int n);
QByteArray *_buf;
};
inline Packer::Packer(QByteArray *buf)
: _buf(buf)
{
}
template <typename T>
void Packer::write(T v)
{
qToBigEndian(v, up(sizeof(T)));
}
template <typename T>
void Packer::writeLE(T v)
{
qToLittleEndian(v, up(sizeof(T)));
}
inline char * Packer::p(int n)
{
int size = _buf->size();
_buf->resize(size + n);
return &_buf->data()[size];
}
inline uchar * Packer::up(int n)
{
return reinterpret_cast<uchar *>(p(n));
}
#endif // PACKER_H
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