Method protect_affinity_mask

benchmarks/tbb/tbb_misc_ex.cpp:97–107

    }
}
void affinity_helper::protect_affinity_mask() {
    if( threadMask == NULL && num_masks && process_mask ) {
        threadMask = new basic_mask_t [num_masks];
        memset( threadMask, 0, curMaskSize );
        get_affinity_mask( curMaskSize, threadMask );
        is_changed = memcmp( process_mask, threadMask, curMaskSize );
        if( is_changed ) {
            set_affinity_mask( curMaskSize, process_mask );
        }
    }
}
#undef curMaskSize

static atomic<do_once_state> hardware_concurrency_info;