Function pomp_loop_process_fd 

pub unsafe extern "C" fn pomp_loop_process_fd(
    loop_: *mut pomp_loop,
) -> c_int

Function to be called when the loop is signaled for readiness. @param loop : loop. @return 0 in case of success, negative errno value in case of error. @remarks this is equivalent to calling pomp_loop_wait_and_process with a timeout of 0 (no wait).