Re: [Boost-bugs] [Boost C++ Libraries] #13364: steady_timer doesn't work in dll

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #13364: steady_timer doesn't work in dll
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2017-12-26 00:10:16

#13364: steady_timer doesn't work in dll
-------------------------+-------------------------------------------------
  Reporter:  anonymous   |      Owner:  chris_kohlhoff
      Type:  Bugs        |     Status:  new
 Milestone:  To Be       |  Component:  asio
  Determined             |
   Version:  Boost       |   Severity:  Showstopper
  1.66.0                 |   Keywords:  boost::asio::steady_timer
Resolution:              |  boost::dll
-------------------------+-------------------------------------------------

Comment (by anonymous):

 I'm working with Visual Studio 2017 V15.5.2.
 Sorry, can't add attachments. So i list the source here:

 api.h:
 ------

 #include <boost/asio.hpp>

 class my_api {
 public:
         virtual void startTimer(boost::asio::io_service& ioservice) = 0;

         virtual ~my_api() {}
 };

 dll.cpp
 -------

 #include <iostream>
 #include <boost/dll.hpp>
 #include "api.h"

 class my_plugin : public my_api {
 public:
         void startTimer(boost::asio::io_service& ioservice) {
                 std::cout << "start timer (15 sec)\n";
                 boost::asio::steady_timer timer{ ioservice,
 std::chrono::seconds{ 15 } };
                 timer.async_wait([](const boost::system::error_code &ec) {
 std::cout << "15 sec\n"; });
         };

         ~my_plugin() {};
 };

 static boost::shared_ptr<my_api> createPlugin() {
         return boost::shared_ptr<my_api>(new my_plugin());
 }

 BOOST_DLL_ALIAS(
         createPlugin,
         create_plugin
 )

 AsioProblem.cpp:
 ----------------

 #include "stdafx.h"

 #include <boost/dll/import.hpp>
 #include <boost/function.hpp>
 #include <boost/asio.hpp>
 #include <iostream>
 #include "../DLL/api.h"

 namespace dll = boost::dll;

 int main() {

         boost::asio::io_service ioservice;

         /* load dll */
         boost::filesystem::path shared_library_path("..\\Debug");
         shared_library_path /= "DLL";

         boost::function<boost::shared_ptr<my_api>()> creator =
 boost::dll::import_alias<boost::shared_ptr<my_api>()>(
                 shared_library_path,
                 "create_plugin",
                 boost::dll::load_mode::append_decorations
                 );
         boost::shared_ptr<my_api> plugin = creator();

         /* set timer 10 sec */
         std::cout << "start timer (10 sec)\n";
         boost::asio::steady_timer timer{ ioservice, std::chrono::seconds{
 10 } };
         timer.async_wait([](const boost::system::error_code &ec) {
 std::cout << "10 sec\n"; });

         /* create my_plugin in dll with timer 15 sec */
         plugin->startTimer(ioservice);

         ioservice.run();

         return 0;
 }

-- 
Ticket URL: <https://svn.boost.org/trac10/boost/ticket/13364#comment:1>
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