我打算使用boost::asio::async_write_some
从客户端向服务器发送结构,在这种情况下boost::serialization
和boost::property_tree
来帮忙,
//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,现在我如何异步地使用out_archive
发送/接收boost::asio
..或
//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root?
(如果您有其他想法,请分享)
答案 0 :(得分:4)
好的,它根本不清楚你尝试过什么或问题是什么,所以你走了:
<强> Live On Coliru 强>
#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() << "\n";
else
std::cout << "Send succesful (" << bytes_transferred << " bytes)\n";
}
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();
}
对抗例如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
几乎没有变化:
<强> Live On Coliru 强>
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........