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3d5e2ca85f
This was achieved by partially undoing changelist 24817, including an accidental corruption of eventgen.pl. Copied from Perforce Change: 24877 ServerID: perforce.ravenbrook.com
324 lines
9 KiB
C
324 lines
9 KiB
C
/* impl.c.amcsshe: POOL CLASS AMC STRESS TEST WITH HEADER
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*
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* $Id$
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* $HopeName: MMsrc!amcsshe.c(trunk.6) $
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* Copyright (c) 2001 Ravenbrook Limited.
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*/
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#include "fmthe.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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/* These values have been tuned to cause one top-generation collection. */
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#define testArenaSIZE ((size_t)1400*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 bogusRootsCOUNT 4096
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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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#define genCOUNT 2
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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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{ 210, 0.85 }, { 248, 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_ap_t ap;
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static mps_addr_t exactRoots[exactRootsCOUNT];
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static mps_addr_t ambigRoots[ambigRootsCOUNT];
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static mps_addr_t bogusRoots[bogusRootsCOUNT];
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static mps_word_t *ww = NULL;
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static mps_word_t *tvw;
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static mps_word_t dylan_make_WV(mps_word_t version, mps_word_t vb,
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mps_word_t es, mps_word_t vf)
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{
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/* VERSION- ... VB------ reserved ES---VF- */
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return((version << (MPS_WORD_WIDTH - 8)) |
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(vb << 16) |
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(es << 3) |
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vf);
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}
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static mps_res_t init(mps_addr_t addr, size_t size,
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mps_addr_t *refs, size_t nr_refs)
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{
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/* Make sure the size is aligned. */
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if ((size & (ALIGN-1)) != 0) return MPS_RES_PARAM;
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if (ww == NULL) {
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ww = malloc(sizeof(mps_word_t) * (BASIC_WRAPPER_SIZE + 1));
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if (ww == NULL) return MPS_RES_MEMORY;
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tvw = malloc(sizeof(mps_word_t) * BASIC_WRAPPER_SIZE);
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if (tvw == NULL) {
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free(ww);
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return MPS_RES_MEMORY;
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}
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/* Build a wrapper wrapper. */
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ww[WW] = (mps_word_t)ww;
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ww[WC] = (mps_word_t)ww; /* dummy class */
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ww[WM] = (1 << 2) | 1; /* dummy subtype_mask */
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ww[WF] = ((WS - 1) << 2) | 2;
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ww[WV] = dylan_make_WV(2, 0, 0, 0);
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ww[WS] = (1 << 2) | 1;
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ww[WP] = 1;
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/* Build a wrapper for traceable vectors. */
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tvw[WW] = (mps_word_t)ww;
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tvw[WC] = (mps_word_t)ww; /* dummy class */
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tvw[WM] = (1 << 2) | 1; /* dummy subtype_mask */
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tvw[WF] = 0; /* no fixed part */
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tvw[WV] = dylan_make_WV(2, 0, 0, 2); /* traceable variable part */
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tvw[WS] = 1; /* no patterns */
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}
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/* If there is enough room, make a vector, otherwise just */
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/* make a padding object. */
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if (size >= sizeof(mps_word_t) * 2) {
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mps_word_t *p = (mps_word_t *)addr;
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mps_word_t i, t = (size / sizeof(mps_word_t)) - 2;
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p[0] = (mps_word_t)tvw; /* install vector wrapper */
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p[1] = (t << 2) | 1; /* tag the vector length */
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for(i = 0; i < t; ++i) {
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mps_word_t r = rnd();
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if (r & 1)
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p[2+i] = ((r & ~(mps_word_t)3) | 1); /* random int */
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else
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p[2+i] = (mps_word_t)refs[(r >> 1) % nr_refs]; /* random ptr */
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}
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} else {
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die(MPS_RES_FAIL, "small object");
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}
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return MPS_RES_OK;
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}
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static void dylan_write(mps_addr_t addr, mps_addr_t *refs, size_t nr_refs)
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{
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mps_word_t *p = (mps_word_t *)addr;
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mps_word_t t = p[1] >> 2;
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/* If the object is a vector, update a random entry. */
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if (p[0] == (mps_word_t)tvw && t > 0) {
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mps_word_t r = rnd();
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size_t i = 2 + (rnd() % t);
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if (r & 1)
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p[i] = ((r & ~(mps_word_t)3) | 1); /* random int */
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else
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p[i] = (mps_word_t)refs[(r >> 1) % nr_refs]; /* random ptr */
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}
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}
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static mps_addr_t make(void)
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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, userP;
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mps_res_t res;
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do {
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MPS_RESERVE_BLOCK(res, p, ap, size + headerSIZE);
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if (res)
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die(res, "MPS_RESERVE_BLOCK");
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userP = (mps_addr_t)((char*)p + headerSIZE);
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res = init(userP, size, exactRoots, exactRootsCOUNT);
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if (res)
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die(res, "dylan_init");
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((int*)p)[0] = realHeader;
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((int*)p)[1] = 0xED0ED;
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} while(!mps_commit(ap, p, size + headerSIZE));
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return userP;
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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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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, bogusRoot;
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unsigned long objs; 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 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(EnsureHeaderFormat(&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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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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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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die(mps_root_create_table(&bogusRoot, arena,
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MPS_RANK_AMBIG, (mps_rm_t)0,
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&bogusRoots[0], bogusRootsCOUNT),
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"root_create_table(bogus)");
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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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objs = 0;
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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", c, objs);
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for(r = 0; r < exactRootsCOUNT; ++r) {
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if (exactRoots[r] != objNULL)
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die(HeaderFormatCheck(exactRoots[r]), "wrapper check");
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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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die(HeaderFormatCheck(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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/* fill bogusRoots with variations of a real pointer */
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r = rnd() % exactRootsCOUNT;
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if (exactRoots[r] != objNULL) {
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char *p = (char*)exactRoots[r];
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for(i = 0; i < bogusRootsCOUNT; ++i, ++p)
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bogusRoots[i] = (mps_addr_t)p;
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}
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}
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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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die(HeaderFormatCheck(exactRoots[i]), "wrapper check");
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exactRoots[i] = make();
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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();
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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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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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++objs;
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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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mps_root_destroy(exactRoot);
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mps_root_destroy(ambigRoot);
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mps_root_destroy(bogusRoot);
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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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return NULL;
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}
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int main(int argc, char **argv)
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{
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mps_arena_t arena;
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mps_thr_t thread;
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void *r;
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randomize(argc, argv);
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die(mps_arena_create(&arena, mps_arena_class_vm(), 3*testArenaSIZE),
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"arena_create\n");
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die(mps_arena_commit_limit_set(arena, testArenaSIZE), "set limit");
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die(mps_thread_reg(&thread, arena), "thread_reg");
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mps_tramp(&r, test, arena, 0);
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mps_thread_dereg(thread);
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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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