问题描述
我打算使用 boost::asio::async_write_some 从客户端向服务器发送一个结构体，在本例中为 boost::serialization 和 boost::property_tree 来帮忙，
I was going to send a struct from a client to a server using boost::asio::async_write_some, in this case boost::serialization and boost::property_tree come to help,
//boost::serialization
struct blank
{
int m_id;
std::string m_message;
template<typename archive>
void serialize(archive& ar, const short version)
{
ar & m_id;
ar & m_message;
}
};
blank info;
info.m_id = 1;
info.m_name = "Rasul";
std::stringstream ss;
boost::archive::binary_oarchive out_archive(ss);
out_archive << info;
那么，现在我如何使用 boost::asio 异步发送/接收 out_archive .. 或
So, now how can I send/receive out_archive using boost::asio asynchronously .. or
//boost::property_tree
boost::property_tree::ptree root;
root.put("id", 2);
root.put("name", "Rasul");
如何使用 boost::asio 异步发送/接收根????(如果您有其他想法，请分享)
How can I send/receive root using boost::asio asynchronously???
(If you have some other ideas please share them)
推荐答案
好吧，完全不清楚您尝试了什么或问题是什么，所以您开始吧:
Ok, it's not clear at all what you've tried or what the problem is, so here you go:
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#include <boost/archive/binary_oarchive.hpp>
#include <boost/serialization/serialization.hpp>
#include <boost/asio.hpp>
#include <iostream>
//boost::serialization
struct blank
{
int m_id;
std::string m_message;
template<typename archive> void serialize(archive& ar, const unsigned /*version*/) {
ar & m_id;
ar & m_message;
}
};
void on_send_completed(boost::system::error_code ec, size_t bytes_transferred) {
if (ec)
std::cout << "Send failed: " << ec.message() << "
";
else
std::cout << "Send succesful (" << bytes_transferred << " bytes)
";
}
namespace ba = boost::asio;
using ba::ip::tcp;
struct IO {
boost::asio::streambuf buf;
void send_asynchronously(tcp::socket& socket) {
blank info;
info.m_id = 1;
info.m_message = "Rasul";
{
std::ostream os(&buf);
boost::archive::binary_oarchive out_archive(os);
out_archive << info;
}
async_write(socket, buf, on_send_completed);
}
};
int main() {
ba::io_service ios;
tcp::socket s(ios);
s.connect({{},6868});
IO io;
io.send_asynchronously(s);
ios.run();
}
当针对例如运行时netcat -l -p 6868 |xxd:
Send succesful (62 bytes)
00000000: 1600 0000 0000 0000 7365 7269 616c 697a ........serializ
00000010: 6174 696f 6e3a 3a61 7263 6869 7665 0f00 ation::archive..
00000020: 0408 0408 0100 0000 0000 0000 0001 0000 ................
00000030: 0005 0000 0000 0000 0052 6173 756c .........Rasul
Boost 属性树 + 序列化
一些变化:
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void send_asynchronously(tcp::socket& socket) {
boost::property_tree::ptree root;
root.put("id", 2);
root.put("name", "Rasul");
{
std::ostream os(&buf);
boost::archive::binary_oarchive out_archive(os);
out_archive << root;
}
async_write(socket, buf, on_send_completed);
}
打印:
Send succesful (138 bytes)
00000000: 1600 0000 0000 0000 7365 7269 616c 697a ........serializ
00000010: 6174 696f 6e3a 3a61 7263 6869 7665 0f00 ation::archive..
00000020: 0408 0408 0100 0000 0000 0000 0002 0000 ................
00000030: 0000 0000 0000 0000 0000 0000 0000 0200 ................
00000040: 0000 0000 0000 6964 0000 0000 0000 0000 ......id........
00000050: 0000 0000 0100 0000 0000 0000 3204 0000 ............2...
00000060: 0000 0000 006e 616d 6500 0000 0000 0000 .....name.......
00000070: 0000 0000 0005 0000 0000 0000 0052 6173 .............Ras
00000080: 756c 0000 0000 0000 0000 ul........
这篇关于在 boost::asio 中发送/接收一个结构体的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持跟版网！