SIGSEGV when creating simppl::dbus::Skeleton from thread

[tverdonck]

Hi,

I'm currently having an issue when creating simppl::dbus::Skeleton instances from a thread.

A thread different then the dispatcher thread.

This results in SIGSEGV.

I've written a unittest to show the use case.

#include <gtest/gtest.h>

#include "simppl/skeleton.h"
#include "simppl/dispatcher.h"
#include "simppl/interface.h"

#include <thread>

constexpr const char* bus = "bus:session";
constexpr const char* name = "com.dummy";
constexpr const char* path = "/com/dummy/";

INTERFACE(Dummy)
{
  Property<int> Test;
  Dummy() :
     INIT(Test)
  {
  }
};

int index_ = 0;

class DummyService : public simppl::dbus::Skeleton<Dummy>
{
public:
  DummyService(simppl::dbus::Dispatcher& d) : simppl::dbus::Skeleton<Dummy>(d, name, "/dummy/" + std::to_string(index_++))
  {
  }
};


using namespace std::chrono_literals;
TEST(Crash, crash)
{
  simppl::dbus::Dispatcher d(bus);
  
  DummyService service1(d);
  DummyService service2(d);
  
  std::thread thread1 = std::thread([&d] {
    std::this_thread::sleep_for(2000ms);
    DummyService service3(d);
  });
  
  d.run();
}

[martinhaefner]

simppl is by default not intended to serve services in multiple threads. Sorry.