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/*
TEST_HEADER
id = $Id$
summary = mps_arena_commit_limit tests
language = c
link = testlib.o
OUTPUT_SPEC
create = COMMIT_LIMIT
commit0 = FAIL
commit10 = OK
com_less = FAIL
commit_min = OK
alloc_mv = COMMIT_LIMIT
commit_ext = OK
alloc_16 = OK
alloc_big = COMMIT_LIMIT
poolcr = COMMIT_LIMIT
result = pass
END_HEADER
*/
#include "testlib.h"
#include "mpsavm.h"
#include "mpscmvff.h"
mps_arena_t arena;
mps_thr_t thread;
mps_pool_t pool;
mps_pool_t pools[1000];
static void test(void *stack_pointer)
{
int i;
mps_addr_t a;
mps_res_t res;
/* Create an arena with a commit limit that's too small for the
* essential MPS internal data structures -- this must fail with
* RES_COMMIT_LIMIT. */
MPS_ARGS_BEGIN(args) {
MPS_ARGS_ADD(args, MPS_KEY_COMMIT_LIMIT, 16 * 1024);
report_res("create", mps_arena_create_k(&arena, mps_arena_class_vm(), args));
} MPS_ARGS_END(args);
cdie(mps_arena_create(&arena, mps_arena_class_vm(), (size_t) (1024*1024*20)),
"create arena");
cdie(mps_thread_reg(&thread, arena), "register thread");
/* set the commit limit to 0MB, then to 10MB+1 byte */
report_res("commit0",
mps_arena_commit_limit_set(arena, (size_t) (1024*1024*0)));
report_res("commit10",
mps_arena_commit_limit_set(arena, (size_t) (1+1024*1024*10)));
/* create a pool */
cdie(mps_pool_create_k(&pool, arena, mps_class_mvff(), mps_args_none), "pool");
for (i=0; i<100; i++) {
die(mps_alloc(&a, pool, (size_t) 64), "alloc");
}
/* shouldn't be possible to set the commit limit to less than the amount
currently commited */
report_res("com_less",
mps_arena_commit_limit_set(arena, mps_arena_committed(arena)-1));
/* should be possible to set the commit limit to the amount currently
committed */
report_res("commit_min",
mps_arena_commit_limit_set(arena, mps_arena_committed(arena)));
for (i=0; i<100; i++) {
res=mps_alloc(&a, pool, (size_t) 1024);
}
report_res("alloc_mv", res);
/* extending the commit-limit by 64K should allow an allocation of 16K
to succeed */
report_res("commit_ext",
mps_arena_commit_limit_set(arena,
mps_arena_commit_limit(arena) + (size_t) (1024*64)));
report_res("alloc_16", mps_alloc(&a, pool, (size_t) (1024*16)));
/* We'd like to get MPS_RES_RESOURCE by running out of the arena's
address arena size, not the commit limit, but that's hard to
arrange on 64-bit machines. See job001152. */
report_res("alloc_big", mps_alloc(&a, pool, (size_t) (1024*1024*30)));
mps_pool_destroy(pool);
/* now we'll check that creating a pool can fail on the COMMIT_LIMIT */
cdie(mps_arena_commit_limit_set(arena, mps_arena_committed(arena)),
"back to minimum limit");
res = MPS_RES_OK;
i = 0;
while (i < sizeof pools / sizeof pools[0]) {
res = mps_pool_create_k(&pools[i], arena, mps_class_mvff(), mps_args_none);
if (res == MPS_RES_OK) {
i++;
} else {
break;
}
}
report_res("poolcr", res);
for (i--; i >= 0; i--) {
mps_pool_destroy(pools[i]);
}
mps_thread_dereg(thread);
mps_arena_destroy(arena);
comment("Destroyed arena.");
}
int main(void)
{
run_test(test);
pass();
return 0;
}
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