Re: [Boost-users] How to retrieve a value from a thread

9 Mar 2006


      Sliwa, Przemyslaw (London) escreveu:
...
I was though thread is created by a pointer to a function, e.g.
Int foo(int x, int y, int z)
{
  // do something with a,b,c
  return a+b+c;
}
Boost::thread pop(boost::bind(&foo, a, b, c));
// do something else
pop.join();
The question is how to retrieve the result from foo running in pop.
void foo_wrapper (int x, int y, int z, int& out)
{
    out = foo(x, y, z);
}

int retval = 0;

boost::thread pop(
    boost::bind(&foo_wrapper, a, b, c, retval)
);

pop.join();

// Check retval.

--
 Pedro Lamarão