static void test(void) {
mps_thr_t thread;
mps_pool_t pool;
mps_addr_t a, b;
char *c;
cdie(mps_arena_create(&arena, mps_arena_class_vmnz(),
(size_t) (1024*1024*50)), "create arena");
cdie(mps_thread_reg(&thread, arena), "register thread");
die(
mps_pool_create(&pool, arena, mps_class_mvff_debug(), &debugOpts,
8192, 8, 8, 0, 0, 1),
"create MVFF pool");
die(mps_alloc(&a, pool, 64), "alloc a");
die(mps_alloc(&b, pool, 64), "alloc b");
c = a;
c -= 1;
*c = 0;
mps_pool_check_fenceposts(pool);
comment("Fencepost check.");
c += 67;
*c = 0;
mps_pool_check_fenceposts(pool);
comment("Fencepost check.");
mps_pool_destroy(pool);
mps_thread_dereg(thread);
mps_arena_destroy(arena);
}
static void test(void *stack_pointer)
{
mps_thr_t thread;
mps_pool_t pool;
mps_addr_t a;
char *c;
cdie(mps_arena_create(&arena, mps_arena_class_vm(),
(size_t) (1024*1024*50)), "create arena");
cdie(mps_thread_reg(&thread, arena), "register thread");
MPS_ARGS_BEGIN(args) {
MPS_ARGS_ADD(args, MPS_KEY_POOL_DEBUG_OPTIONS, &debugOpts);
die(mps_pool_create_k(&pool, arena, mps_class_mvff_debug(), args),
"create MVFF pool");
} MPS_ARGS_END(args);
die(mps_alloc(&a, pool, 64), "alloc a");
c = a;
c -= 1;
*c = 0;
mps_pool_check_fenceposts(pool);
comment("Fencepost check.");
c += 67;
*c = 0;
mps_pool_check_fenceposts(pool);
comment("Fencepost check.");
mps_pool_destroy(pool);
mps_thread_dereg(thread);
mps_arena_destroy(arena);
}
static mps_res_t stress(mps_arena_t arena, mps_pool_debug_option_s *options,
size_t (*size)(size_t i), mps_align_t align,
const char *name, mps_pool_class_t pool_class,
mps_arg_s *args)
{
mps_res_t res;
mps_pool_t pool;
size_t i, k;
int *ps[testSetSIZE];
size_t ss[testSetSIZE];
size_t allocated = 0; /* Total allocated memory */
size_t debugOverhead = options ? 2 * alignUp(options->fence_size, align) : 0;
printf("Pool class %s, alignment %u\n", name, (unsigned)align);
res = mps_pool_create_k(&pool, arena, pool_class, args);
if (res != MPS_RES_OK)
return res;
/* allocate a load of objects */
for (i=0; i<testSetSIZE; ++i) {
mps_addr_t obj;
ss[i] = (*size)(i);
res = mps_alloc(&obj, pool, ss[i]);
if (res != MPS_RES_OK)
return res;
ps[i] = obj;
allocated += alignUp(ss[i], align) + debugOverhead;
if (ss[i] >= sizeof(ps[i]))
*ps[i] = 1; /* Write something, so it gets swap. */
check_allocated_size(pool, allocated);
}
mps_pool_check_fenceposts(pool);
for (k=0; k<testLOOPS; ++k) {
/* shuffle all the objects */
for (i=0; i<testSetSIZE; ++i) {
size_t j = rnd()%(testSetSIZE-i);
void *tp;
size_t ts;
tp = ps[j]; ts = ss[j];
ps[j] = ps[i]; ss[j] = ss[i];
ps[i] = tp; ss[i] = ts;
}
/* free half of the objects */
/* upper half, as when allocating them again we want smaller objects */
/* see randomSize() */
for (i=testSetSIZE/2; i<testSetSIZE; ++i) {
mps_free(pool, (mps_addr_t)ps[i], ss[i]);
/* if (i == testSetSIZE/2) */
/* PoolDescribe((Pool)pool, mps_lib_stdout); */
Insist(alignUp(ss[i], align) + debugOverhead <= allocated);
allocated -= alignUp(ss[i], align) + debugOverhead;
}
/* allocate some new objects */
for (i=testSetSIZE/2; i<testSetSIZE; ++i) {
mps_addr_t obj;
ss[i] = (*size)(i);
res = mps_alloc(&obj, pool, ss[i]);
if (res != MPS_RES_OK)
return res;
ps[i] = obj;
allocated += alignUp(ss[i], align) + debugOverhead;
}
check_allocated_size(pool, allocated);
}
die(PoolDescribe(pool, mps_lib_get_stdout(), 0), "PoolDescribe");
mps_pool_destroy(pool);
return MPS_RES_OK;
}
