mirror of
git://git.sv.gnu.org/emacs.git
synced 2026-01-01 01:41:01 -08:00
64 lines
1.7 KiB
C
64 lines
1.7 KiB
C
/*
|
|
TEST_HEADER
|
|
id = $Id$
|
|
summary = grey-box test of arena extension and compaction
|
|
language = c
|
|
link = testlib.o
|
|
parameters = CHUNKSIZE=1024*1024 ITERATIONS=100
|
|
END_HEADER
|
|
*/
|
|
|
|
#include "mpm.h"
|
|
#include "mpscmvff.h"
|
|
#include "testlib.h"
|
|
|
|
static void check_chunks(mps_arena_t arena, unsigned expected)
|
|
{
|
|
unsigned chunks = (unsigned)RingLength(ArenaChunkRing((Arena)arena));
|
|
asserts(chunks == expected, "expected %u chunks, got %u", expected, chunks);
|
|
}
|
|
|
|
static void test(void *stack_pointer)
|
|
{
|
|
mps_arena_t arena;
|
|
mps_pool_t pool;
|
|
mps_addr_t block[ITERATIONS];
|
|
unsigned i;
|
|
|
|
MPS_ARGS_BEGIN(args) {
|
|
MPS_ARGS_ADD(args, MPS_KEY_ARENA_SIZE, CHUNKSIZE);
|
|
die(mps_arena_create_k(&arena, mps_arena_class_vm(), args), "arena_create");
|
|
} MPS_ARGS_END(args);
|
|
|
|
MPS_ARGS_BEGIN(args) {
|
|
MPS_ARGS_ADD(args, MPS_KEY_SPARE, 0);
|
|
die(mps_pool_create_k(&pool, arena, mps_class_mvff(), args), "pool_create");
|
|
} MPS_ARGS_END(args);
|
|
check_chunks(arena, 1);
|
|
|
|
for (i = 0; i < ITERATIONS; ++i) {
|
|
die(mps_alloc(&block[i], pool, CHUNKSIZE), "mps_alloc");
|
|
check_chunks(arena, i + 2);
|
|
}
|
|
|
|
for (i = ITERATIONS; i > 0; --i) {
|
|
mps_free(pool, block[i - 1], CHUNKSIZE);
|
|
mps_arena_collect(arena); /* ensure ArenaCompact is called */
|
|
/* The first chunk to be freed from the pool to the arena gets
|
|
* some of its memory stolen for the spare memory land's block
|
|
* pool, and this prevents the chunk from being destroyed.
|
|
* Subsequent chunks can be freed in their entirety because the
|
|
* spare memory land has enough blocks. */
|
|
check_chunks(arena, i + 1);
|
|
}
|
|
|
|
mps_pool_destroy(pool);
|
|
mps_arena_destroy(arena);
|
|
}
|
|
|
|
int main(void)
|
|
{
|
|
run_test(test);
|
|
pass();
|
|
return 0;
|
|
}
|