Class: Scrym::Mutator

Inherits:
Object
  • Object
show all
Defined in:
ext/scrym/scrym_ext.c

Class Method Summary collapse

Class Method Details

.collect ⇒ Object 



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# File 'ext/scrym/scrym_ext.c', line 353

static VALUE
scrym_collect(VALUE self)
{
    while(scrym_expire_chunk());
    global_desc->expired = global_desc->marked;
    global_desc->marked = NULL;
    global_desc->mark_mask = other_mark_part(global_desc->mark_mask);
    scrym_shrink_descriptor_chunk_cache(global_desc);
    return Qnil;
}

.mark(obj) ⇒ Object

—- mark —-



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# File 'ext/scrym/scrym_ext.c', line 187

static VALUE
scrym_mark(VALUE self, VALUE obj)
{
    if (IMMEDIATE_P(obj)) {
        rb_raise(rb_eArgError, "can not accept an immediate value");
        return;
    }
    if (BUILTIN_TYPE(obj) == T_NONE) {
        rb_raise(rb_eArgError, "can not accept an node");
        return;
    }
    if (FL_TEST(obj, FL_FINALIZE)) {
        rb_raise(rb_eArgError, "defined a finalizer");
        return;
    }
    if (RBASIC(obj)->flags & global_desc->mark_mask) {
        return;
    }
    scrym_add_descriptor(global_desc, obj);
    RBASIC(obj)->flags |= global_desc->mark_mask;
    return Qnil;
}

.test ⇒ Object 



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# File 'ext/scrym/scrym_ext.c', line 365

static VALUE
scrym_test(VALUE self) {
    size_t i;

    {
        puts("scrym_init");
        assert(global_desc->expired == NULL);
        assert(global_desc->marked == NULL);
        assert(global_desc->cache != NULL);
    }

    {
        size_t j;
        puts("scrym_add_descriptor");
        for(i = 0; i < SCRYM_CACHE_MIN; i++) {
            for(j = 0; j < SCRYM_DESCRIPTOR_CHUNK_SIZE; j++) {
                scrym_add_descriptor(global_desc, j);
            }
        }
        for(j = 0; j < SCRYM_DESCRIPTOR_CHUNK_SIZE; j++) {
            assert(global_desc->marked->descriptors[j] == (VALUE)j);
        }
        assert(global_desc->marked->next->next->next != NULL);
        assert(global_desc->marked->next->next->next->descriptors[SCRYM_DESCRIPTOR_CHUNK_SIZE] != SCRYM_DESCRIPTOR_CHUNK_SIZE-1);
        assert(global_desc->marked->next->next->next->next == NULL);
        assert(global_desc->expired == NULL);
        assert(global_desc->cache == NULL);
        assert(global_desc->cache_size == 0);
        assert(global_desc->unused_cache_size == 0);
        global_desc->cache = global_desc->marked;
        global_desc->marked = NULL;
        global_desc->cache_size = SCRYM_CACHE_MIN;
    }

    {
        VALUE str = rb_str_new_cstr("test");
        VALUE str2 = rb_str_new_cstr("test2");
        puts("scrym_collect");
        assert(scrym_expire_chunk() == Qfalse);
        assert((RBASIC(str)->flags & SCRYM_MARK) == 0);

        puts("  scrym_mark1");
        scrym_mark(Qnil, str);
        scrym_mark(Qnil, str);
        assert(global_desc->marked->index == 1);
        assert(RBASIC(str)->flags & global_desc->marked->mark_mask);
        assert(!(RBASIC(str)->flags & other_mark_part(global_desc->marked->mark_mask)));

        puts("  scrym_mark2");
        scrym_mark(Qnil, str2);
        assert(global_desc->marked->index == 2);
        assert(RBASIC(str2)->flags & global_desc->marked->mark_mask);

        puts("  collect1");
        scrym_collect(Qnil);
        scrym_mark(Qnil, str2);

        puts("  collect2");
        scrym_collect(Qnil);
        assert(RBASIC(str)->flags == 0);
        assert(RBASIC(str2)->flags != 0);
        assert(global_desc->marked == NULL);
        assert(global_desc->expired != NULL);

        puts("  collect3");
        scrym_collect(Qnil);
        assert(RBASIC(str2)->flags == 0);
        assert(global_desc->expired == NULL);
        assert(global_desc->cache_size == SCRYM_CACHE_MIN);
    }
}