#if defined(SNMALLOC_PASS_THROUGH) || defined(_WIN32) // This test does not make sense with malloc pass-through, skip it. // The malloc definitions are also currently incompatible with Windows headers // so skip this test on Windows as well. int main() { return 0; } #else # define SNMALLOC_EXPOSE_PAGEMAP 1 # include int main() { auto& p = ExternalGlobalPagemap::pagemap(); auto& global = GlobalPagemap::pagemap(); SNMALLOC_CHECK(&p == &global); // Get a valid heap address uintptr_t addr = reinterpret_cast(malloc(42)); // Make this very strongly aligned addr &= ~0xfffffULL; void* page = p.page_for_address(addr); SNMALLOC_CHECK(page == p.page_for_address(addr + 128)); size_t idx = p.index_for_address(addr); size_t idx2 = p.index_for_address(addr + SUPERSLAB_SIZE); // If the pagemap ends up storing things that are not uint8_t, this test // will need modifying. SNMALLOC_CHECK(idx2 = ((idx + 1) % OS_PAGE_SIZE)); } #endif