magazine_small_test.c [plain text]
#include <darwintest.h>
#include "../src/magazine_small.c"
#include "magazine_testing.h"
static inline void
test_rack_setup(rack_t *rack)
{
memset(rack, 'a', sizeof(rack));
rack_init(rack, RACK_TYPE_SMALL, 1, 0);
T_QUIET; T_ASSERT_NOTNULL(rack->magazines, "magazine initialisation");
}
T_DECL(basic_small_alloc, "small rack init and alloc")
{
struct rack_s rack;
test_rack_setup(&rack);
void *ptr = small_malloc_should_clear(&rack, SMALL_MSIZE_FOR_BYTES(512), false);
T_ASSERT_NOTNULL(ptr, "allocation");
region_t *rgn = small_region_for_ptr_no_lock(&rack, ptr);
T_ASSERT_NOTNULL(rgn, "allocation region found in rack");
size_t sz = small_size(&rack, ptr);
T_ASSERT_EQ((int)sz, 512, "size == 32");
}
T_DECL(basic_small_teardown, "small rack init, alloc, teardown")
{
struct rack_s rack;
test_rack_setup(&rack);
void *ptr = small_malloc_should_clear(&rack, TINY_MSIZE_FOR_BYTES(512), false);
T_ASSERT_NOTNULL(ptr, "allocation");
rack_destroy_regions(&rack, SMALL_REGION_SIZE);
for (int i=0; i < rack.region_generation->num_regions_allocated; i++) {
T_QUIET;
T_ASSERT_TRUE(rack.region_generation->hashed_regions[i] == HASHRING_OPEN_ENTRY ||
rack.region_generation->hashed_regions[i] == HASHRING_REGION_DEALLOCATED,
"all regions destroyed");
}
rack_destroy(&rack);
T_ASSERT_NULL(rack.magazines, "magazines destroyed");
}
T_DECL(basic_small_free, "small free")
{
struct rack_s rack;
test_rack_setup(&rack);
void *ptr = small_malloc_should_clear(&rack, SMALL_MSIZE_FOR_BYTES(512), false);
T_ASSERT_NOTNULL(ptr, "allocation");
free_small(&rack, ptr, SMALL_REGION_FOR_PTR(ptr), 0);
size_t sz = small_size(&rack, ptr);
T_ASSERT_EQ((int)sz, 0, "allocation freed (sz == 0)");
}
T_DECL(basic_small_shrink, "small rack shrink")
{
struct rack_s rack;
test_rack_setup(&rack);
void *ptr = small_malloc_should_clear(&rack, SMALL_MSIZE_FOR_BYTES(1024), false);
T_ASSERT_NOTNULL(ptr, "allocation");
size_t sz = small_size(&rack, ptr);
T_ASSERT_EQ((int)sz, 1024, "size == 1024");
void *nptr = small_try_shrink_in_place(&rack, ptr, sz, 512);
size_t nsz = small_size(&rack, nptr);
T_ASSERT_EQ_PTR(ptr, nptr, "ptr == nptr");
T_ASSERT_EQ((int)nsz, 512, "nsz == 512");
}
T_DECL(basic_small_realloc_in_place, "small rack realloc in place")
{
struct rack_s rack;
test_rack_setup(&rack);
void *ptr = small_malloc_should_clear(&rack, SMALL_MSIZE_FOR_BYTES(512), false);
T_ASSERT_NOTNULL(ptr, "allocation");
size_t sz = small_size(&rack, ptr);
T_ASSERT_EQ((int)sz, 512, "size == 512");
void *ptr2 = small_malloc_should_clear(&rack, SMALL_MSIZE_FOR_BYTES(512), false);
T_ASSERT_NOTNULL(ptr2, "allocation 2");
T_ASSERT_EQ_PTR(ptr2, (void *)((uintptr_t)ptr + 512), "sequential allocations");
free_small(&rack, ptr2, SMALL_REGION_FOR_PTR(ptr2), 0);
boolean_t reallocd = small_try_realloc_in_place(&rack, ptr, sz, 1024);
T_ASSERT_TRUE(reallocd, "realloced");
size_t nsz = small_size(&rack, ptr);
T_ASSERT_EQ((int)nsz, 1024, "realloc size == 1024");
reallocd = small_try_realloc_in_place(&rack, ptr, nsz, 2048);
T_ASSERT_TRUE(reallocd, "realloced #2");
nsz = small_size(&rack, ptr);
T_ASSERT_EQ((int)nsz, 2048, "realloc size == 2048");
free_small(&rack, ptr, SMALL_REGION_FOR_PTR(ptr), 0);
}