def test_allocate_new_page():
pagesize = hdrsize + 16
arenasize = pagesize * 4 - 1
#
def checknewpage(page, size_class):
size = WORD * size_class
assert (ac._nuninitialized(page, size_class) ==
(pagesize - hdrsize) // size)
assert page.nfree == 0
page1 = page.freeblock - hdrsize
assert llmemory.cast_ptr_to_adr(page) == page1
assert page.nextpage == PAGE_NULL
#
ac = ArenaCollection(arenasize, pagesize, 99)
assert ac.num_uninitialized_pages == 0
assert ac.total_memory_used == 0
#
page = ac.allocate_new_page(5)
checknewpage(page, 5)
assert ac.num_uninitialized_pages == 2
assert ac.current_arena.freepages - pagesize == cast_ptr_to_adr(page)
assert ac.page_for_size[5] == page
#
page = ac.allocate_new_page(3)
checknewpage(page, 3)
assert ac.num_uninitialized_pages == 1
assert ac.current_arena.freepages - pagesize == cast_ptr_to_adr(page)
assert ac.page_for_size[3] == page
#
page = ac.allocate_new_page(4)
checknewpage(page, 4)
assert ac.num_uninitialized_pages == 0
assert ac.page_for_size[4] == page
def test_allocate_new_page():
pagesize = hdrsize + 16
arenasize = pagesize * 4 - 1
#
def checknewpage(page, size_class):
size = WORD * size_class
assert (ac._nuninitialized(page,
size_class) == (pagesize - hdrsize) // size)
assert page.nfree == 0
page1 = page.freeblock - hdrsize
assert llmemory.cast_ptr_to_adr(page) == page1
assert page.nextpage == PAGE_NULL
#
ac = ArenaCollection(arenasize, pagesize, 99)
assert ac.num_uninitialized_pages == 0
assert ac.total_memory_used == 0
#
page = ac.allocate_new_page(5)
checknewpage(page, 5)
assert ac.num_uninitialized_pages == 2
assert ac.current_arena.freepages - pagesize == cast_ptr_to_adr(page)
assert ac.page_for_size[5] == page
#
page = ac.allocate_new_page(3)
checknewpage(page, 3)
assert ac.num_uninitialized_pages == 1
assert ac.current_arena.freepages - pagesize == cast_ptr_to_adr(page)
assert ac.page_for_size[3] == page
#
page = ac.allocate_new_page(4)
checknewpage(page, 4)
assert ac.num_uninitialized_pages == 0
assert ac.page_for_size[4] == page