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Mps br/timing: new test z001989a.c, for job001989: mps _gc_start messages may cause assert or infinite loop

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This commit is contained in:
Richard Kistruck 2008-12-05 14:54:16 +00:00
parent f44928d383
commit d70fc55aa7

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mps/code/z001989a.c Normal file
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/* fin1658a.c: Test for suspected defect described in job001658
*
* $Id$
* Copyright (c) 2001 Ravenbrook Limited. See end of file for license.
* Portions copyright (C) 2002 Global Graphics Software.
*
* DESIGN
*
* See <design/poolmrg/#test>.
*
* DEPENDENCIES
*
* This test uses the dylan object format, but the reliance on this
* particular format is not great and could be removed.
*
* NOTES
*
* This code was created by first copying <code/finalcv.c>.
*/
#include "testlib.h"
#include "mps.h"
#include "mpscamc.h"
#include "mpsavm.h"
#include "fmtdy.h"
#include "fmtdytst.h"
#include "mpstd.h"
#ifdef MPS_OS_W3
#include "mpsw3.h"
#endif
#include <stdlib.h>
#define testArenaSIZE ((size_t)16<<20)
/* usually (ArenaAlign / sizeof(Ref)) = 1024 */
/* so choose 3000 to force 3 segments of guardians */
#define myrootCOUNT 3000
/* testChain -- generation parameters for the test */
#define genCOUNT 2
static mps_gen_param_s testChain[genCOUNT] = {
{ 150, 0.85 }, { 170, 0.45 } };
/* note: static, so auto-initialised to NULL */
static void *myroot[myrootCOUNT];
static int state[myrootCOUNT];
enum {
rootSTATE,
deadSTATE,
finalizableSTATE,
finalizedSTATE
};
/* report -- collect messages, report, and check objects were */
/* legally finalized. */
static void report(mps_arena_t arena, int expect)
{
int found = 0;
/* Test any finalized objects */
while (mps_message_poll(arena)) {
mps_message_t message;
mps_word_t *obj;
mps_word_t objind;
mps_addr_t objaddr;
cdie(mps_message_get(&message, arena, mps_message_type_finalization()),
"get");
found += 1;
mps_message_finalization_ref(&objaddr, arena, message);
obj = objaddr;
objind = DYLAN_INT_INT(DYLAN_VECTOR_SLOT(obj, 0));
printf("Finalizing: object %lu at %p\n", objind, objaddr);
cdie(myroot[objind] == NULL, "finalized live");
cdie(state[objind] == finalizableSTATE, "not finalizable");
state[objind] = finalizedSTATE;
mps_message_discard(arena, message);
}
if(found < expect) {
printf("...expected %d finalizations, but got fewer: only %d!\n",
expect, found);
cdie(FALSE, "wrong number of finalizations");
} else if(found > expect) {
printf("...expected %d finalizations, but got more: %d!\n",
expect, found);
cdie(FALSE, "wrong number of finalizations");
}
}
typedef struct trampDataStruct {
mps_arena_t arena;
mps_thr_t thr;
} trampDataStruct;
static void *test(void *arg, size_t s)
{
trampDataStruct trampData;
mps_arena_t arena;
mps_thr_t thr;
mps_fmt_t fmt;
mps_chain_t chain;
mps_pool_t amc;
mps_root_t root_table;
mps_ap_t ap;
mps_root_t root_stackreg;
int i;
int N = myrootCOUNT - 1;
void *stack_starts_here; /* stack scanning starts here */
trampData = *(trampDataStruct*)arg;
arena = trampData.arena;
thr = trampData.thr;
(void)s;
die(mps_fmt_create_A(&fmt, arena, dylan_fmt_A()), "fmt_create");
die(mps_chain_create(&chain, arena, genCOUNT, testChain), "chain_create");
die(mps_pool_create(&amc, arena, mps_class_amc(), fmt, chain),
"pool_create amc");
die(mps_root_create_table(&root_table, arena, MPS_RANK_EXACT, (mps_rm_t)0,
myroot, (size_t)myrootCOUNT),
"root_create");
die(mps_ap_create(&ap, amc, MPS_RANK_EXACT), "ap_create");
/* root_stackreg: stack & registers are ambiguous roots = mutator's workspace */
die(mps_root_create_reg(&root_stackreg, arena,
mps_rank_ambig(), (mps_rm_t)0, thr,
mps_stack_scan_ambig, &stack_starts_here, 0),
"root_stackreg");
/* Make myrootCOUNT registered-for-finalization objects. */
/* <design/poolmrg/#test.promise.ut.alloc> */
for(i = 0; i < myrootCOUNT; ++i) {
mps_word_t v;
die(make_dylan_vector(&v, ap, 2), "make_dylan_vector");
DYLAN_VECTOR_SLOT(v, 0) = DYLAN_INT(i);
DYLAN_VECTOR_SLOT(v, 1) = (mps_word_t)NULL;
die(mps_finalize(arena, (mps_addr_t*)&v), "finalize");
myroot[i] = (void*)v;
state[i] = rootSTATE;
}
/* stop stack scanning, to prevent unwanted object retention */
mps_root_destroy(root_stackreg);
mps_message_type_enable(arena, mps_message_type_finalization());
mps_arena_collect(arena);
report(arena, 0);
/* make 0 and N finalizable */
myroot[0] = NULL;
state[0] = finalizableSTATE;
myroot[N] = NULL;
state[N] = finalizableSTATE;
mps_arena_collect(arena);
report(arena, 2);
mps_arena_collect(arena);
report(arena, 0);
/* make 1 and N-1 refer to each other and finalizable */
DYLAN_VECTOR_SLOT(myroot[1] , 1) = (mps_word_t)myroot[N-1];
DYLAN_VECTOR_SLOT(myroot[N-1], 1) = (mps_word_t)myroot[1];
myroot[1] = NULL;
state[1] = finalizableSTATE;
myroot[N-1] = NULL;
state[N-1] = finalizableSTATE;
mps_arena_collect(arena);
report(arena, 2);
mps_arena_collect(arena);
report(arena, 0);
/* @@@@ <design/poolmrg/#test.promise.ut.nofinal.check> missing */
mps_ap_destroy(ap);
mps_root_destroy(root_table);
mps_pool_destroy(amc);
mps_chain_destroy(chain);
mps_fmt_destroy(fmt);
return NULL;
}
int main(int argc, char **argv)
{
mps_arena_t arena;
mps_thr_t thr;
mps_tramp_t trampFunction;
trampDataStruct trampData;
void *trampResult;
randomize(argc, argv);
/* arena */
die(mps_arena_create(&arena, mps_arena_class_vm(), testArenaSIZE),
"arena_create");
/* thr: used to stop/restart multiple threads */
die(mps_thread_reg(&thr, arena), "thread");
/* tramp: used for protection (barrier hits) */
trampFunction = test;
trampData.arena = arena;
trampData.thr = thr;
mps_tramp(&trampResult, trampFunction, &trampData, sizeof trampData);
mps_thread_dereg(thr);
mps_arena_destroy(arena);
fflush(stdout); /* synchronize */
fprintf(stderr, "\nConclusion: Failed to find any defects.\n");
return 0;
}
/* C. COPYRIGHT AND LICENSE
*
* Copyright (C) 2001-2002 Ravenbrook Limited <http://www.ravenbrook.com/>.
* All rights reserved. This is an open source license. Contact
* Ravenbrook for commercial licensing options.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 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
* major components of the operating system on which the executable file
* runs.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
* PURPOSE, OR NON-INFRINGEMENT, ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/