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c0bb4cd3cd
This change will be integrated but ignored (-ay) to the gg-epcore/union sources, so that they retain HopeNames. Copied from Perforce Change: 24911 ServerID: perforce.ravenbrook.com
298 lines
7.3 KiB
C
298 lines
7.3 KiB
C
/* impl.c.amcssth: POOL CLASS AMC STRESS TEST WITH TWO THREADS
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*
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* $Id$
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* Copyright (c) 2001 Ravenbrook Limited.
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*
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* .posix: This is Posix only.
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*/
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#define _POSIX_C_SOURCE 199309L
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#include "fmtdy.h"
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#include "testlib.h"
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#include "mpscamc.h"
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#include "mpsavm.h"
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#include "mpstd.h"
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#ifdef MPS_OS_W3
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#include "mpsw3.h"
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#endif
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#include "mps.h"
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#include <stdlib.h>
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#include <string.h>
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#include <pthread.h>
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#include <time.h>
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/* These values have been tuned to cause one top-generation collection. */
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#define testArenaSIZE ((size_t)1000*1024)
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#define avLEN 3
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#define exactRootsCOUNT 200
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#define ambigRootsCOUNT 50
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#define genCOUNT 2
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#define collectionsCOUNT 37
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#define rampSIZE 9
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#define initTestFREQ 6000
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/* testChain -- generation parameters for the test */
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static mps_gen_param_s testChain[genCOUNT] = {
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{ 150, 0.85 }, { 170, 0.45 } };
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/* objNULL needs to be odd so that it's ignored in exactRoots. */
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#define objNULL ((mps_addr_t)0xDECEA5ED)
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static mps_pool_t pool;
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static mps_addr_t exactRoots[exactRootsCOUNT];
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static mps_addr_t ambigRoots[ambigRootsCOUNT];
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mps_arena_t arena;
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mps_fmt_t format;
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mps_chain_t chain;
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mps_root_t exactRoot, ambigRoot;
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unsigned long objs = 0;
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static mps_addr_t make(mps_ap_t ap)
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{
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size_t length = rnd() % (2*avLEN);
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size_t size = (length+2) * sizeof(mps_word_t);
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mps_addr_t p;
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mps_res_t res;
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do {
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MPS_RESERVE_BLOCK(res, p, ap, size);
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if (res)
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die(res, "MPS_RESERVE_BLOCK");
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res = dylan_init(p, size, exactRoots, exactRootsCOUNT);
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if (res)
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die(res, "dylan_init");
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} while(!mps_commit(ap, p, size));
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return p;
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}
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static void test_stepper(mps_addr_t object, void *p, size_t s)
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{
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(*(unsigned long *)p)++;
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testlib_unused(s);
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testlib_unused(object);
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}
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/* init -- initialize pool and roots */
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static void init(void)
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{
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size_t i;
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die(dylan_fmt(&format, arena), "fmt_create");
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die(mps_chain_create(&chain, arena, genCOUNT, testChain), "chain_create");
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die(mps_pool_create(&pool, arena, mps_class_amc(), format, chain),
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"pool_create(amc)");
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for(i = 0; i < exactRootsCOUNT; ++i)
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exactRoots[i] = objNULL;
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for(i = 0; i < ambigRootsCOUNT; ++i)
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ambigRoots[i] = (mps_addr_t)rnd();
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die(mps_root_create_table_masked(&exactRoot, arena,
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MPS_RANK_EXACT, (mps_rm_t)0,
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&exactRoots[0], exactRootsCOUNT,
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(mps_word_t)1),
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"root_create_table(exact)");
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die(mps_root_create_table(&ambigRoot, arena,
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MPS_RANK_AMBIG, (mps_rm_t)0,
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&ambigRoots[0], ambigRootsCOUNT),
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"root_create_table(ambig)");
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}
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/* finish -- finish pool and roots */
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static void finish(void)
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{
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mps_root_destroy(exactRoot);
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mps_root_destroy(ambigRoot);
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mps_pool_destroy(pool);
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mps_chain_destroy(chain);
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mps_fmt_destroy(format);
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}
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/* churn -- create an object and install into roots */
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static void churn(mps_ap_t ap)
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{
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size_t i;
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size_t r;
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++objs;
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r = (size_t)rnd();
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if (r & 1) {
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i = (r >> 1) % exactRootsCOUNT;
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if (exactRoots[i] != objNULL)
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cdie(dylan_check(exactRoots[i]), "dying root check");
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exactRoots[i] = make(ap);
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if (exactRoots[(exactRootsCOUNT-1) - i] != objNULL)
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dylan_write(exactRoots[(exactRootsCOUNT-1) - i],
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exactRoots, exactRootsCOUNT);
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} else {
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i = (r >> 1) % ambigRootsCOUNT;
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ambigRoots[(ambigRootsCOUNT-1) - i] = make(ap);
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/* Create random interior pointers */
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ambigRoots[i] = (mps_addr_t)((char *)(ambigRoots[i/2]) + 1);
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}
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}
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/* test -- the body of the test */
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static void *test(void *arg, size_t s)
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{
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size_t i;
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mps_word_t collections, rampSwitch;
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mps_alloc_pattern_t ramp = mps_alloc_pattern_ramp();
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int ramping;
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mps_ap_t ap, busy_ap;
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mps_addr_t busy_init;
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arena = (mps_arena_t)arg;
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(void)s; /* unused */
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die(mps_ap_create(&ap, pool, MPS_RANK_EXACT), "BufferCreate");
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die(mps_ap_create(&busy_ap, pool, MPS_RANK_EXACT), "BufferCreate 2");
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/* create an ap, and leave it busy */
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die(mps_reserve(&busy_init, busy_ap, 64), "mps_reserve busy");
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collections = 0;
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rampSwitch = rampSIZE;
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mps_ap_alloc_pattern_begin(ap, ramp);
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mps_ap_alloc_pattern_begin(busy_ap, ramp);
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ramping = 1;
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while(collections < collectionsCOUNT) {
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unsigned long c;
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size_t r;
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c = mps_collections(arena);
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if (collections != c) {
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collections = c;
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printf("\nCollection %lu, %lu objects.\n",
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c, objs);
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for(r = 0; r < exactRootsCOUNT; ++r)
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cdie(exactRoots[r] == objNULL || dylan_check(exactRoots[r]),
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"all roots check");
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if (collections == collectionsCOUNT / 2) {
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unsigned long object_count = 0;
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mps_arena_park(arena);
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mps_amc_apply(pool, test_stepper, &object_count, 0);
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mps_arena_release(arena);
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printf("mps_amc_apply stepped on %lu objects.\n", object_count);
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}
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if (collections == rampSwitch) {
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rampSwitch += rampSIZE;
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if (ramping) {
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mps_ap_alloc_pattern_end(ap, ramp);
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mps_ap_alloc_pattern_end(busy_ap, ramp);
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/* kill half of the roots */
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for(i = 0; i < exactRootsCOUNT; i += 2) {
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if (exactRoots[i] != objNULL) {
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cdie(dylan_check(exactRoots[i]), "ramp kill check");
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exactRoots[i] = objNULL;
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}
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}
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/* Every other time, switch back immediately. */
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if (collections & 1) ramping = 0;
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}
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if (!ramping) {
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mps_ap_alloc_pattern_begin(ap, ramp);
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mps_ap_alloc_pattern_begin(busy_ap, ramp);
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ramping = 1;
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}
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}
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}
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churn(ap);
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if (r % initTestFREQ == 0)
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*(int*)busy_init = -1; /* check that the buffer is still there */
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if (objs % 1024 == 0) {
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putchar('.');
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fflush(stdout);
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}
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}
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(void)mps_commit(busy_ap, busy_init, 64);
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mps_ap_destroy(busy_ap);
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mps_ap_destroy(ap);
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return NULL;
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}
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static void *fooey2(void *arg, size_t s)
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{
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mps_ap_t ap;
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(void)arg; (void)s; /* unused */
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die(mps_ap_create(&ap, pool, MPS_RANK_EXACT), "BufferCreate(fooey)");
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while(mps_collections(arena) < collectionsCOUNT) {
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churn(ap);
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}
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mps_ap_destroy(ap);
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return NULL;
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}
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static void *fooey(void* childIsFinishedReturn)
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{
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void *r;
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mps_thr_t thread;
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mps_thr_t thread2;
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/* register the thread twice, just to make sure it works */
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die(mps_thread_reg(&thread, (mps_arena_t)arena), "thread_reg");
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die(mps_thread_reg(&thread2, (mps_arena_t)arena), "thread2_reg");
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mps_tramp(&r, fooey2, NULL, 0);
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mps_thread_dereg(thread);
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mps_thread_dereg(thread2);
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*(int *)childIsFinishedReturn = 1;
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return r;
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}
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int main(int argc, char **argv)
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{
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mps_thr_t thread;
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pthread_t pthread1;
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void *r;
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int childIsFinished = 0;
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randomize(argc, argv);
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die(mps_arena_create(&arena, mps_arena_class_vm(), testArenaSIZE),
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"arena_create");
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init();
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die(mps_thread_reg(&thread, arena), "thread_reg");
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pthread_create(&pthread1, NULL, fooey, (void *)&childIsFinished);
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mps_tramp(&r, test, arena, 0);
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mps_thread_dereg(thread);
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while (!childIsFinished) {
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struct timespec req = {1, 0};
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(void)nanosleep(&req, NULL);
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}
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finish();
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mps_arena_destroy(arena);
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fflush(stdout); /* synchronize */
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fprintf(stderr, "\nConclusion: Failed to find any defects.\n");
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return 0;
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}
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