hpx::init calls wrong (first) callback when called multiple times

[msimberg]

The following code does not work as expected:

#include <hpx/hpx_init.hpp>
#include <iostream>

int hpx_init_test(std::string s, int argc, char ** argv)
{
    std::cout << "string is " << s << std::endl;
    return hpx::finalize();
}

int main (int argc, char *argv[])
{
    using hpx::util::placeholders::_1;
    using hpx::util::placeholders::_2;

    hpx::util::function_nonser<int(int, char**)> callback1 = hpx::util::bind(&hpx_init_test, "first", _1, _2);
    hpx::init(callback1, "name", argc, argv, hpx::runtime_mode_default);

    hpx::util::function_nonser<int(int, char**)> callback2 = hpx::util::bind(&hpx_init_test, "second", _1, _2);
    hpx::init(callback2, "name", argc, argv, hpx::runtime_mode_default);

    hpx::util::function_nonser<int(int, char**)> callback3 = hpx::util::bind(&hpx_init_test, "third", _1, _2);
    hpx::init(callback3, "name", argc, argv, hpx::runtime_mode_default);

    return 0;
}

Expected output:

first
second
third

Actual output:

first
first
first

This is on latest master (f032046).

[hkaiser]

The second and third call to hpx::init should actually throw an exception. This is what needs to be fixed, not the callback invoked..

[biddisco]

Why is that - we used to be able to call init multiple times - is it because the 2nd and 3rd calls should not pass argc,argv since the command line has been parsed already?

[hkaiser]

@biddisco Yes, you're right - please disregard my comment above.