/* airtest.c: AMBIGUOUS INTERIOR REFERENCE TEST
 *
 * $Id: //info.ravenbrook.com/project/mps/branch/2014-01-15/nailboard/code/fotest.c#1 $
 * Copyright (c) 2014 Ravenbrook Limited.  See end of file for license.
 *
 * This test case creates a bunch of vectors, registers them for
 * finalization, and then discards the base pointers to those objects,
 * keeping only ambiguous interior references to the vector entries in
 * the stack-allocated table s.
 *
 * If any of these objects are finalized, then this means that the
 * ambiguous interior references has failed to keep the object alive.
 */

#include "mps.h"
#include "fmtscheme.h"
#include "testlib.h"

#define OBJ_LEN (1u << 4)
#define OBJ_COUNT 10

void test_main(void)
{
  size_t i, j;
  obj_t *s[OBJ_COUNT];
  mps_message_type_enable(scheme_arena, mps_message_type_finalization());
  for (j = 0; j < OBJ_COUNT; ++j) {
    obj_t n = scheme_make_integer((long)j);
    obj_t obj = scheme_make_vector(OBJ_LEN, n);
    mps_addr_t ref = obj;
    mps_finalize(scheme_arena, &ref);
    s[j] = obj->vector.vector;
  }
  for (i = 1; i < OBJ_LEN; ++i) {
    obj_t n = scheme_make_integer((long)i);
    mps_message_t msg;
    for (j = 0; j + 1 < OBJ_COUNT; ++j) {
      *++s[j] = n;
    }
    mps_arena_collect(scheme_arena);
    mps_arena_release(scheme_arena);
    if (mps_message_get(&msg, scheme_arena, mps_message_type_finalization())) {
      mps_addr_t ref;
      obj_t o;
      mps_message_finalization_ref(&ref, scheme_arena, msg);
      o = ref;
      error("wrongly finalized vector %ld at %p", o->vector.vector[0]->integer.integer, o);
    }
  }
}


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 *
 * Copyright (c) 2014 Ravenbrook Limited <http://www.ravenbrook.com/>.
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 * 
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 * 
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 * 
 * 3. Redistributions in any form must be accompanied by information on how
 * to obtain complete source code for this software and any accompanying
 * software that uses this software.  The source code must either be
 * included in the distribution or be available for no more than the cost
 * of distribution plus a nominal fee, and must be freely redistributable
 * under reasonable conditions.  For an executable file, complete source
 * code means the source code for all modules it contains. It does not
 * include source code for modules or files that typically accompany the
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