Question

Hej!

I am looking for a portable way of periodically dispatching a task in a C++ project. The use of libraries such as boost should be avoided in this particular project.

The resolution requirement is not too serious: between 5Hz to 20Hz on an average Netbook.

The project uses OpenGL to render the HMI but since I am working on the backend part I am not too familiar with it.

Thanks your any advice or suggestions,
Arne

EDIT: What our ‘Task’ class actually does is creating a thread using either CreateThread(..) for windows or pthread_create(..) for linux.

Answer 1

As most straightforward way to achieve this is to use Sleep(100ms) in a cycle, all you need is a portable Sleep. For Linux it can be implemented as follows

void Sleep(unsigned long ulMilliseconds)
{
    struct timeval timeout;
    timeout.tv_sec = 0;
    timeout.tv_usec = ulMilliseconds * 1000;
    select(1, NULL, NULL, NULL, &timeout);
}