Function compress

common/message.cpp:23–32

#include <qendian.h>

inline void compress(const QByteArray &src, QByteArray &dst)
{
    const qint32 srcSz = src.size();

    dst.resize(LZ4_compressBound(srcSz + sizeof(srcSz)));
    *( qint32 * )dst.data() = srcSz; // save the source size

    const int sz = LZ4_compress_default(src.constData(), dst.data() + sizeof(int), srcSz, dst.size());
    dst.resize(sz + sizeof(srcSz));
}

inline void uncompress(const QByteArray &src, QByteArray &dst)
{