DataHeader.h

#ifndef DATAHEADER_H
#define DATAHEADER_H
#include <QByteArray>
#include <QtTypes>
namespace DataHeaderUtils {
 
#pragma pack(push, 1)
struct DataHeader {
    quint32 header_magic;
    quint16 protocol_version;
    quint8 current_state;
    quint8 payload_type;
    quint64 fileId;
    quint64 offset;
    quint64 totalSize;
    quint32 nameLen;
    quint32 payloadSize;
    quint32 header_crc;
};
#pragma pack(pop)
 
static constexpr const unsigned int
    DATAHEADER_SIZE
    = sizeof(DataHeader);
 
static constexpr quint32 HEADER_MAGIC = 0x00114514; //
static constexpr quint16 HEADER_VERSION = 1;
 
static constexpr const unsigned int DEF_CHUNK_SZ = 16 * 1024;
 
enum class OperationState : quint8 {
    Start = 1, 
    Data = 2,
    End = 3 
};
 
enum class PayloadType {
    Text,
    Image,
    File,
    UnPublicMeta
};
 
enum class CurrentState {
    ReadingHeader,
    ReadingName,
    ReadingPayload
};
 
QByteArray packUpHeader(const DataHeader& h);
 
bool readOutHeader(QDataStream& stream_prepared, DataHeader& h);
 
quint64 fileId_generation();
 
void printDataHeader(const DataHeader& header);
 
} 
 
#endif // DATAHEADER_H