1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
/* 
TEST_HEADER
 id = $Id: //info.ravenbrook.com/project/mps/master/test/function/16.c#7 $
 summary = regression test for scan of invalid obj after I=A
 language = c
 link = testlib.o newfmt.o
END_HEADER
*/

#include "testlib.h"
#include "mpscamc.h"
#include "mpsavm.h"
#include "newfmt.h"


#define genCOUNT (3)

static mps_gen_param_s testChain[genCOUNT] = {
  { 6000, 0.90 }, { 8000, 0.65 }, { 16000, 0.50 } };


static void test(void *stack_pointer)
{
 mps_arena_t arena;
 mps_pool_t pool;
 mps_thr_t thread;
 mps_root_t root;

 mps_ap_t apA, apB;
 mps_fmt_t format;
 mps_chain_t chain;

 mycell *ambigref;

 size_t bytes;
 size_t alignment;
 mps_addr_t q;

 mps_word_t i;

 cdie(mps_arena_create(&arena, mps_arena_class_vm(), mmqaArenaSIZE),
      "create arena");

 cdie(mps_thread_reg(&thread, arena), "register thread");

 cdie(mps_root_create_thread(&root, arena, thread, stack_pointer), "thread root");
 cdie(mps_fmt_create_A(&format, arena, &fmtA), "create format");
 cdie(mps_chain_create(&chain, arena, genCOUNT, testChain), "chain_create");

 cdie(mmqa_pool_create_chain(&pool, arena, mps_class_amc(), format, chain),
      "create pool");

 die(mps_ap_create(&apA, pool, mps_rank_exact()), "create apA");
 die(mps_ap_create(&apB, pool, mps_rank_exact()), "create apB");

 bytes = offsetof(struct data, ref)+sizeof(struct refitem);
 alignment = MPS_PF_ALIGN;
 bytes = (bytes+alignment-1)&~(alignment-1);
 die(mps_reserve(&q, apB, bytes), "reserve: ");

 comment("Reserve");
 ambigref = q;
 ambigref->data.tag = MCdata;
 ambigref->data.id = MCerrorid;
 ambigref->data.numrefs = 0;
 ambigref->data.size = bytes;

 i = mps_collections(arena)+2;

 while ((unsigned) mps_collections(arena) < i) {
  allocdumb(apA, 1024*256);
 }

 apB->init = apB->alloc;

 while (mps_collections(arena) < i+2) {
  allocdumb(apA, 1024*256);
 }

 asserts((apB->limit != 0 || mps_ap_trip(apB, q, bytes))==0,
  "Commit succeeded!");

 comment("Finished");

 mps_arena_park(arena);
 mps_ap_destroy(apA);
 mps_ap_destroy(apB);

 mps_pool_destroy(pool);
 mps_chain_destroy(chain);
 mps_fmt_destroy(format);
 mps_root_destroy(root);
 mps_thread_dereg(thread);
 mps_arena_destroy(arena);
 comment("Destroyed arena.");
}


int main(void)
{
 run_test(test);
 pass();
 return 0;
}