Crash in boost :: coroutine library when used with boost :: property_tree XML parser

Question

I use the Simple-Web-Server library to create a simple web service for translating XML to JSON and vice versa. In turn, it uses several boost libraries , as well as boost :: coroutine among them. To convert XML ↔ JSON, I use the boost :: property_tree library for an intermediate view. Here is the code:

#include <iostream>
#include <sstream>

#include <server_http.hpp>

#define BOOST_SPIRIT_THREADSAFE
#include <boost/property_tree/ptree.hpp>
#include <boost/property_tree/json_parser.hpp>
#include <boost/property_tree/xml_parser.hpp>

using namespace std;
using namespace boost::property_tree;

using HttpServer = SimpleWeb::Server<SimpleWeb::HTTP>;

int main()
{
  HttpServer server(8080, 1);

  server.resource["^/json_to_xml$"]["POST"] = [](auto& response, auto request) {
    try
    {
      ptree pt;
      read_json(request->content, pt);
      ostringstream json, xml;
      write_json(json, pt);
      clog << "JSON request content:" << endl << json.str() << endl;
      write_xml(xml, pt, xml_writer_make_settings<ptree::key_type>(' ', 1u));
      clog << "XML response content:" << endl << xml.str() << endl;
      response << "HTTP/1.1 200 OK\r\nContent-Length: " << xml.str().length() << "\r\n\r\n" << xml.str();
    }
    catch(const exception& e)
    {
      cerr << "Error:" << endl << e.what() << endl;
      response << "HTTP/1.1 400 Bad Request\r\nContent-Length: " << strlen(e.what()) << "\r\n\r\n" << e.what();
    }
  };

  server.resource["^/xml_to_json$"]["POST"] = [](auto& response, auto request) {
    try
    {
      ptree pt;
      read_xml(request->content, pt, xml_parser::trim_whitespace | xml_parser::no_comments);
      ostringstream xml, json;
      write_xml(xml, pt, xml_writer_make_settings<ptree::key_type>(' ', 1u));
      clog << "XML request content:" << endl << xml.str() << endl;
      write_json(json, pt);
      clog << "JSON response content: " << endl << json.str() << endl;
      response << "HTTP/1.1 200 OK\r\nContent-Length: " << json.str().length() << "\r\n\r\n" << json.str();
    }
    catch(const exception& e)
    {
      cerr << "Error:" << endl << e.what() << endl;
      response << "HTTP/1.1 400 Bad Request\r\nContent-Length: " << strlen(e.what()) << "\r\n\r\n" << e.what();
    }
  };

  server.start();

  return 0;
}

JSON XML , . boost:: property_tree XML , . - . GDB backtrace. , , - Valgrind.

boost - 1.58.0, 1.61.0. 1.4.2 Simple-Web-Server.

Answer 1

read_xml() coroutine; . , 64K rapidxml.

. ... , quickxml, read_xml, 64K , coroutine 8K Linux. : , ,

#define BOOST_PROPERTY_TREE_RAPIDXML_STATIC_POOL_SIZE 512
#include <boost/property_tree/xml_parser.hpp>

( Simple-Web-)