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#include "../ByteStream.h"
#include <iostream>
#include <cstring>
#include <endian.h>
using namespace std;

struct message
{
    // 50 +x
    char message_head[2];                   ///<  消息头  byte类型 @ < 
    uint16_t message_len_byteOrder;         ///<  流水账号到验证码的长度
    uint32_t serial_number_byteOrder;       ///<  流水号[0, +)
    uint16_t message_body_type_byteOrder;   ///<  消息体类型。0x0000：utf-8_Json 0x0001: 字节序列
    uint8_t  agreement_version_number;      ///<  协议版本号 0x01:版本1  0x02：版本2
    uint8_t  encryption_type;               ///<  加密类型，0x00：未加密  0x01:SM4 128国密
    uint32_t random_number_byteOrder;       ///<  随机数  不加密0x00 加密时
    uint64_t time_byteOrder;                ///<  unix时间戳   单位秒
    char reserve[24];                       ///<  预留备用  0x00 填充
    std::string message_body;                    ///<  消息体 字符串类型
    uint16_t check_code_byteOrder;          ///<  CRC16校验码
};


void show_uint8(unsigned char* name_, const unsigned int& len_)
{
    /*!
    * @brief 按字节打印
    * 0x20-0x7E打印字符，其他\x11显示
    */
    std::cout << len_ << "字节流方式打印: " << std::endl;
    for(int i=0; i<len_; i++){
        if(0x20 <= name_[i] && name_[i]<= 0x7E){
            std::cout <<  name_[i];
        }else{
            std::cout << "\\x" << std::hex << (int)name_[i];
        }
    }
    std::cout << std::endl << "打印结束" << std::endl;
}

int main(int argc, char *argv[])
{
    ByteStream stream(120);
    unsigned char buf[120];
    memset(buf,0,120);
    
    message sendMsg;
    sendMsg.message_head[0] = '@';
    sendMsg.message_head[1] = '<';
    sendMsg.message_len_byteOrder = htobe16(0x1616);
    sendMsg.serial_number_byteOrder = htobe32(0x32323232);
    sendMsg.message_body_type_byteOrder = htobe16(0x1616);
    sendMsg.agreement_version_number=0x08;
    sendMsg.encryption_type = 0x08;
    sendMsg.random_number_byteOrder=htobe32(0x32323232);
    sendMsg.time_byteOrder = htobe64(0x6464646464646464);
    memset(sendMsg.reserve, 0x08, 24);
    sendMsg.message_body="123456"s;
    sendMsg.check_code_byteOrder=htobe16(0x1213);

    stream << sendMsg.message_head ;
    stream << sendMsg.message_len_byteOrder ;
    stream << sendMsg.serial_number_byteOrder ;
    stream << sendMsg.message_body_type_byteOrder ;
    stream << sendMsg.agreement_version_number ;
    stream << sendMsg.encryption_type ;
    stream << sendMsg.random_number_byteOrder ;
    stream << sendMsg.time_byteOrder ;
    // stream << sendMsg.reserve ;
    // stream << (unsigned  char *)sendMsg.message_body.data();
    stream << sendMsg.check_code_byteOrder ;
    
    unsigned int length = stream.getBuf(buf);

    show_uint8(buf, length);
    return 0;
}

g++ demo01.cpp ../ByteStream.cpp -o main && ./main

79字节流方式打印: 
@<\x16\x162222\x16\x16\x8\x82222dddddddd\x8\x8\x8\x8\x8\x8\x8\x8\x8\x8\x8\x8\x8\x8\x8\x8\x8\x8\x8\x8\x8\x8\x8\x8\xe0}Hm\xfe\x7f\x0\x16\x162222\x16\x16\x8\x82222dddddddd\x12\x13
打印结束