static void
clear_all_old(mrb_state *mrb)
{
size_t origin_mode = mrb->is_generational_gc_mode;
gc_assert(is_generational(mrb));
if (is_major_gc(mrb)) {
advance_phase(mrb, GC_STATE_NONE);
}
mrb->is_generational_gc_mode = FALSE;
prepare_incremental_sweep(mrb);
advance_phase(mrb, GC_STATE_NONE);
mrb->variable_gray_list = mrb->gray_list = NULL;
mrb->is_generational_gc_mode = origin_mode;
}
static void
change_gen_gc_mode(mrb_state *mrb, mrb_int enable)
{
if (is_generational(mrb) && !enable) {
if (is_major_gc(mrb)) {
advance_phase(mrb, GC_STATE_NONE);
}
else {
clear_all_old(mrb);
gc_assert(mrb->gc_state == GC_STATE_NONE);
}
mrb->gc_full = FALSE;
}
else if (!is_generational(mrb) && enable) {
advance_phase(mrb, GC_STATE_NONE);
mrb->majorgc_old_threshold = mrb->gc_live_after_mark/100 * DEFAULT_MAJOR_GC_INC_RATIO;
mrb->gc_full = FALSE;
}
mrb->is_generational_gc_mode = enable;
}
void
test_incremental_gc(void)
{
mrb_state *mrb = mrb_open();
size_t max = ~0, live = 0, total = 0, freed = 0;
RVALUE *free;
struct heap_page *page;
puts("test_incremental_gc");
change_gen_gc_mode(mrb, FALSE);
puts(" in mrb_garbage_collect");
mrb_garbage_collect(mrb);
gc_assert(mrb->gc_state == GC_STATE_NONE);
puts(" in GC_STATE_NONE");
incremental_gc(mrb, max);
gc_assert(mrb->gc_state == GC_STATE_MARK);
puts(" in GC_STATE_MARK");
advance_phase(mrb, GC_STATE_SWEEP);
gc_assert(mrb->gc_state == GC_STATE_SWEEP);
puts(" in GC_STATE_SWEEP");
page = mrb->heaps;
while (page) {
RVALUE *p = page->objects;
RVALUE *e = p + MRB_HEAP_PAGE_SIZE;
while (p<e) {
if (is_black(&p->as.basic)) {
live++;
}
if (is_gray(&p->as.basic) && !is_dead(mrb, &p->as.basic)) {
printf("%p\n", &p->as.basic);
}
p++;
}
page = page->next;
total += MRB_HEAP_PAGE_SIZE;
}
gc_assert(mrb->gray_list == NULL);
incremental_gc(mrb, max);
gc_assert(mrb->gc_state == GC_STATE_SWEEP);
incremental_gc(mrb, max);
gc_assert(mrb->gc_state == GC_STATE_NONE);
free = (RVALUE*)mrb->heaps->freelist;
while (free) {
freed++;
free = (RVALUE*)free->as.free.next;
}
gc_assert(mrb->live == live);
gc_assert(mrb->live == total-freed);
puts("test_incremental_gc(gen)");
advance_phase(mrb, GC_STATE_SWEEP);
change_gen_gc_mode(mrb, TRUE);
gc_assert(mrb->gc_full == FALSE);
gc_assert(mrb->gc_state == GC_STATE_NONE);
puts(" in minor");
gc_assert(is_minor_gc(mrb));
gc_assert(mrb->majorgc_old_threshold > 0);
mrb->majorgc_old_threshold = 0;
mrb_incremental_gc(mrb);
gc_assert(mrb->gc_full == TRUE);
gc_assert(mrb->gc_state == GC_STATE_NONE);
puts(" in major");
gc_assert(is_major_gc(mrb));
do {
mrb_incremental_gc(mrb);
} while (mrb->gc_state != GC_STATE_NONE);
gc_assert(mrb->gc_full == FALSE);
mrb_close(mrb);
}
