Boost ASIO PTY example

asio_pty_example.cpp

#include <boost/asio.hpp>
#include <boost/bind.hpp>
#include <iostream>
#include <pty.h>
#include <string>
#include <sys/wait.h>
#include <unistd.h>

using namespace std;
void do_async_read();

constexpr char linkname[] = "/tmp/OUT";

boost::asio::io_service ioservice;
boost::asio::posix::basic_stream_descriptor<> stream(ioservice);

boost::asio::streambuf stream_buffer_;

void data_send(void) { std::cout << "omg sent" << std::endl; }

void handle_read(boost::system::error_code ec, size_t bytes_transferred) {

  std::istream istream(&stream_buffer_);
  std::string str;
  std::getline(istream, str, '\r');

  std::cout << str << std::endl;
  do_async_read();
}

void do_async_read() {

  boost::asio::async_read_until(
      stream, stream_buffer_, '\r',
      boost::bind(&handle_read, boost::asio::placeholders::error,
                  boost::asio::placeholders::bytes_transferred()));
}

void pty_test() {
  int master;
  int slave;
  char ptyname[64];

  openpty(&master, &slave, ptyname, NULL, NULL);

  std::cout << ptyname << std::endl;

  unlink(linkname);
  symlink(ptyname, linkname);

  stream.assign(master);

  do_async_read();

  ioservice.run();
  ;
}

int main(int argc, const char *argv[]) { pty_test(); }

Not well organized, but a working example I can reference.