apiNetwork.cpp

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#include "apiNetwork.h"

quint64 get_INT64(u_char *field, qint64 *int64)
{
    quint64 tmp = 0;

    for(int i = 0 ; i < 8 ; i++)
    {
        tmp <<= 8;
        tmp += *(field + i);
    }
    *int64 = (long long int)tmp;

    return 8;
}

quint64 get_UINT64(u_char *field, quint64 *uint64)
{
    *uint64 = 0;
    for(int i = 0 ; i < 8 ; i++)
    {
        *uint64 <<= 8;
        *uint64 += *(field + i);
    }

    return 8;
}

quint64 get_INT32(u_char *field, qint32 *int32)
{
    quint64 tmp = 0;

    for(int i = 0 ; i < 4 ; i++)
    {
        tmp <<= 8;
        tmp += *(field + i);
    }
    *int32 = (long long int)tmp;

    return 4;
}

quint64 get_UINT32(u_char *field, quint32 *uint32)
{
    *uint32 = 0;
    for(int i = 0 ; i < 4 ; i++)
    {
        *uint32 <<= 8;
        *uint32 += *(field + i);
    }

    return 4;
}

quint64 get_INT16(u_char *field, qint16 *int16)
{
    quint64 tmp = 0;

    for(int i = 0; i < 2; i++)
    {
        tmp <<= 8;
        tmp += *(field+i);
    }
    *int16 = (long int)tmp;

    return 2;
}

quint64 get_UINT16(u_char *field, quint16 *uint16)
{
    *uint16 = 0;
    for(int i = 0 ; i < 2 ; i++)
    {
        *uint16 <<= 8;
        *uint16 += *(field + i);
    }

    return 2;
}

quint64 get_INT8(u_char *field, qint8 *int8)
{
    *int8 = 0;
    *int8 = *field;
    return 1;
}

quint64 get_UINT8(u_char *field, quint8 *uint8)
{
    *uint8 = 0;
    *uint8 += *field;
    return 1;
}

bool isDuplicatePacketDetectionTimestamp(quint32 lastReceivedTimestamp, quint32 nowReceivedTimestamp)
{
    if(((nowReceivedTimestamp >= lastReceivedTimestamp) && ((nowReceivedTimestamp - lastReceivedTimestamp) <= TST_MAX/2))
        || ((lastReceivedTimestamp > nowReceivedTimestamp) && ((lastReceivedTimestamp - nowReceivedTimestamp) > TST_MAX/2)))
        return false;
    else
        return true;
}

bool isDuplicatePacketDetectionTimestampSN(quint32 lastReceivedTimestamp, quint32 nowReceivedTimestamp, quint16 lastReceivedSN, quint16 nowReceivedSN)
{
    if(((nowReceivedTimestamp > lastReceivedTimestamp) && ((nowReceivedTimestamp - lastReceivedTimestamp) <= TST_MAX/2))
        || ((lastReceivedTimestamp > nowReceivedTimestamp) && ((lastReceivedTimestamp - nowReceivedTimestamp) > TST_MAX/2)))
        return false;
    else if(nowReceivedTimestamp == lastReceivedTimestamp)
        if(((nowReceivedSN > lastReceivedSN) && ((nowReceivedSN - lastReceivedSN) <= SN_MAX/2))
        || ((lastReceivedSN > nowReceivedSN) && ((lastReceivedSN - nowReceivedSN) > SN_MAX/2)))
            return false;
        else
            return true;
    else
        return true;
}