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Annotation of OpenXM_contrib2/asir2000/gc/test.c, Revision 1.1

1.1     ! noro        1: /*
        !             2:  * Copyright 1988, 1989 Hans-J. Boehm, Alan J. Demers
        !             3:  * Copyright (c) 1991-1994 by Xerox Corporation.  All rights reserved.
        !             4:  * Copyright (c) 1996 by Silicon Graphics.  All rights reserved.
        !             5:  *
        !             6:  * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
        !             7:  * OR IMPLIED.  ANY USE IS AT YOUR OWN RISK.
        !             8:  *
        !             9:  * Permission is hereby granted to use or copy this program
        !            10:  * for any purpose,  provided the above notices are retained on all copies.
        !            11:  * Permission to modify the code and to distribute modified code is granted,
        !            12:  * provided the above notices are retained, and a notice that the code was
        !            13:  * modified is included with the above copyright notice.
        !            14:  */
        !            15: /* An incomplete test for the garbage collector.               */
        !            16: /* Some more obscure entry points are not tested at all.       */
        !            17:
        !            18: # if defined(mips) && defined(SYSTYPE_BSD43)
        !            19:     /* MIPS RISCOS 4 */
        !            20: # else
        !            21: #   include <stdlib.h>
        !            22: # endif
        !            23: # include <stdio.h>
        !            24: # include <assert.h>   /* Not normally used, but handy for debugging. */
        !            25: # include "gc.h"
        !            26: # include "gc_typed.h"
        !            27: # include "gc_priv.h"  /* For output, locking,  and some statistics    */
        !            28: # include "gcconfig.h"
        !            29:
        !            30: # ifdef MSWIN32
        !            31: #   include <windows.h>
        !            32: # endif
        !            33:
        !            34: # ifdef PCR
        !            35: #   include "th/PCR_ThCrSec.h"
        !            36: #   include "th/PCR_Th.h"
        !            37: #   undef GC_printf0
        !            38: #   define GC_printf0 printf
        !            39: #   undef GC_printf1
        !            40: #   define GC_printf1 printf
        !            41: # endif
        !            42:
        !            43: # ifdef SOLARIS_THREADS
        !            44: #   include <thread.h>
        !            45: #   include <synch.h>
        !            46: # endif
        !            47:
        !            48: # if defined(IRIX_THREADS) || defined(LINUX_THREADS)
        !            49: #   include <pthread.h>
        !            50: # endif
        !            51:
        !            52: # ifdef WIN32_THREADS
        !            53: #   include <process.h>
        !            54:     static CRITICAL_SECTION incr_cs;
        !            55: # endif
        !            56: # if defined(PCR) || defined(SOLARIS_THREADS) || defined(WIN32_THREADS)
        !            57: #   define THREADS
        !            58: # endif
        !            59:
        !            60: # ifdef AMIGA
        !            61:    long __stack = 200000;
        !            62: # endif
        !            63:
        !            64: # define FAIL (void)abort()
        !            65:
        !            66: /* AT_END may be defined to excercise the interior pointer test        */
        !            67: /* if the collector is configured with ALL_INTERIOR_POINTERS.   */
        !            68: /* As it stands, this test should succeed with either          */
        !            69: /* configuration.  In the FIND_LEAK configuration, it should   */
        !            70: /* find lots of leaks, since we free almost nothing.           */
        !            71:
        !            72: struct SEXPR {
        !            73:     struct SEXPR * sexpr_car;
        !            74:     struct SEXPR * sexpr_cdr;
        !            75: };
        !            76:
        !            77:
        !            78: typedef struct SEXPR * sexpr;
        !            79:
        !            80: # define INT_TO_SEXPR(x) ((sexpr)(unsigned long)(x))
        !            81:
        !            82: # undef nil
        !            83: # define nil (INT_TO_SEXPR(0))
        !            84: # define car(x) ((x) -> sexpr_car)
        !            85: # define cdr(x) ((x) -> sexpr_cdr)
        !            86: # define is_nil(x) ((x) == nil)
        !            87:
        !            88:
        !            89: int extra_count = 0;        /* Amount of space wasted in cons node */
        !            90:
        !            91: /* Silly implementation of Lisp cons. Intentionally wastes lots of space */
        !            92: /* to test collector.                                                    */
        !            93: sexpr cons (x, y)
        !            94: sexpr x;
        !            95: sexpr y;
        !            96: {
        !            97:     register sexpr r;
        !            98:     register int *p;
        !            99:     register int my_extra = extra_count;
        !           100:
        !           101:     r = (sexpr) GC_MALLOC_STUBBORN(sizeof(struct SEXPR) + my_extra);
        !           102:     if (r == 0) {
        !           103:         (void)GC_printf0("Out of memory\n");
        !           104:         exit(1);
        !           105:     }
        !           106:     for (p = (int *)r;
        !           107:          ((char *)p) < ((char *)r) + my_extra + sizeof(struct SEXPR); p++) {
        !           108:        if (*p) {
        !           109:            (void)GC_printf1("Found nonzero at 0x%lx - allocator is broken\n",
        !           110:                             (unsigned long)p);
        !           111:            FAIL;
        !           112:         }
        !           113:         *p = 13;
        !           114:     }
        !           115: #   ifdef AT_END
        !           116:        r = (sexpr)((char *)r + (my_extra & ~7));
        !           117: #   endif
        !           118:     r -> sexpr_car = x;
        !           119:     r -> sexpr_cdr = y;
        !           120:     my_extra++;
        !           121:     if ( my_extra >= 5000 ) {
        !           122:         extra_count = 0;
        !           123:     } else {
        !           124:         extra_count = my_extra;
        !           125:     }
        !           126:     GC_END_STUBBORN_CHANGE((char *)r);
        !           127:     return(r);
        !           128: }
        !           129:
        !           130: sexpr small_cons (x, y)
        !           131: sexpr x;
        !           132: sexpr y;
        !           133: {
        !           134:     register sexpr r;
        !           135:
        !           136:     r = (sexpr) GC_MALLOC(sizeof(struct SEXPR));
        !           137:     if (r == 0) {
        !           138:         (void)GC_printf0("Out of memory\n");
        !           139:         exit(1);
        !           140:     }
        !           141:     r -> sexpr_car = x;
        !           142:     r -> sexpr_cdr = y;
        !           143:     return(r);
        !           144: }
        !           145:
        !           146: sexpr small_cons_uncollectable (x, y)
        !           147: sexpr x;
        !           148: sexpr y;
        !           149: {
        !           150:     register sexpr r;
        !           151:
        !           152:     r = (sexpr) GC_MALLOC_UNCOLLECTABLE(sizeof(struct SEXPR));
        !           153: assert(GC_is_marked(r));
        !           154:     if (r == 0) {
        !           155:         (void)GC_printf0("Out of memory\n");
        !           156:         exit(1);
        !           157:     }
        !           158:     r -> sexpr_car = x;
        !           159:     r -> sexpr_cdr = (sexpr)(~(unsigned long)y);
        !           160:     return(r);
        !           161: }
        !           162:
        !           163: /* Return reverse(x) concatenated with y */
        !           164: sexpr reverse1(x, y)
        !           165: sexpr x, y;
        !           166: {
        !           167:     if (is_nil(x)) {
        !           168:         return(y);
        !           169:     } else {
        !           170:         return( reverse1(cdr(x), cons(car(x), y)) );
        !           171:     }
        !           172: }
        !           173:
        !           174: sexpr reverse(x)
        !           175: sexpr x;
        !           176: {
        !           177:     return( reverse1(x, nil) );
        !           178: }
        !           179:
        !           180: sexpr ints(low, up)
        !           181: int low, up;
        !           182: {
        !           183:     if (low > up) {
        !           184:        return(nil);
        !           185:     } else {
        !           186:         return(small_cons(small_cons(INT_TO_SEXPR(low), nil), ints(low+1, up)));
        !           187:     }
        !           188: }
        !           189:
        !           190: /* To check uncollectable allocation we build lists with disguised cdr */
        !           191: /* pointers, and make sure they don't go away.                         */
        !           192: sexpr uncollectable_ints(low, up)
        !           193: int low, up;
        !           194: {
        !           195:     if (low > up) {
        !           196:        return(nil);
        !           197:     } else {
        !           198:         return(small_cons_uncollectable(small_cons(INT_TO_SEXPR(low), nil),
        !           199:                uncollectable_ints(low+1, up)));
        !           200:     }
        !           201: }
        !           202:
        !           203: void check_ints(list, low, up)
        !           204: sexpr list;
        !           205: int low, up;
        !           206: {
        !           207:     if ((int)(GC_word)(car(car(list))) != low) {
        !           208:         (void)GC_printf0(
        !           209:            "List reversal produced incorrect list - collector is broken\n");
        !           210:         FAIL;
        !           211:     }
        !           212:     if (low == up) {
        !           213:         if (cdr(list) != nil) {
        !           214:            (void)GC_printf0("List too long - collector is broken\n");
        !           215:            FAIL;
        !           216:         }
        !           217:     } else {
        !           218:         check_ints(cdr(list), low+1, up);
        !           219:     }
        !           220: }
        !           221:
        !           222: # define UNCOLLECTABLE_CDR(x) (sexpr)(~(unsigned long)(cdr(x)))
        !           223:
        !           224: void check_uncollectable_ints(list, low, up)
        !           225: sexpr list;
        !           226: int low, up;
        !           227: {
        !           228: assert(GC_is_marked(list));
        !           229:     if ((int)(GC_word)(car(car(list))) != low) {
        !           230:         (void)GC_printf0(
        !           231:            "Uncollectable list corrupted - collector is broken\n");
        !           232:         FAIL;
        !           233:     }
        !           234:     if (low == up) {
        !           235:         if (UNCOLLECTABLE_CDR(list) != nil) {
        !           236:            (void)GC_printf0("Uncollectable list too long - collector is broken\n");
        !           237:            FAIL;
        !           238:         }
        !           239:     } else {
        !           240:         check_uncollectable_ints(UNCOLLECTABLE_CDR(list), low+1, up);
        !           241:     }
        !           242: }
        !           243:
        !           244: /* Not used, but useful for debugging: */
        !           245: void print_int_list(x)
        !           246: sexpr x;
        !           247: {
        !           248:     if (is_nil(x)) {
        !           249:         (void)GC_printf0("NIL\n");
        !           250:     } else {
        !           251:         (void)GC_printf1("(%ld)", (long)(car(car(x))));
        !           252:         if (!is_nil(cdr(x))) {
        !           253:             (void)GC_printf0(", ");
        !           254:             (void)print_int_list(cdr(x));
        !           255:         } else {
        !           256:             (void)GC_printf0("\n");
        !           257:         }
        !           258:     }
        !           259: }
        !           260:
        !           261: /* Try to force a to be strangely aligned */
        !           262: struct {
        !           263:   char dummy;
        !           264:   sexpr aa;
        !           265: } A;
        !           266: #define a A.aa
        !           267:
        !           268: /*
        !           269:  * A tiny list reversal test to check thread creation.
        !           270:  */
        !           271: #ifdef THREADS
        !           272:
        !           273: # ifdef WIN32_THREADS
        !           274:     unsigned __stdcall tiny_reverse_test(void * arg)
        !           275: # else
        !           276:     void * tiny_reverse_test(void * arg)
        !           277: # endif
        !           278: {
        !           279:     check_ints(reverse(reverse(ints(1,10))), 1, 10);
        !           280:     return 0;
        !           281: }
        !           282:
        !           283: # if defined(IRIX_THREADS) || defined(LINUX_THREADS) \
        !           284:      || defined(SOLARIS_PTHREADS)
        !           285:     void fork_a_thread()
        !           286:     {
        !           287:       pthread_t t;
        !           288:       int code;
        !           289:       if ((code = pthread_create(&t, 0, tiny_reverse_test, 0)) != 0) {
        !           290:        (void)GC_printf1("Small thread creation failed %lu\n",
        !           291:                         (unsigned long)code);
        !           292:        FAIL;
        !           293:       }
        !           294:       if ((code = pthread_join(t, 0)) != 0) {
        !           295:         (void)GC_printf1("Small thread join failed %lu\n",
        !           296:        (unsigned long)code);
        !           297:         FAIL;
        !           298:       }
        !           299:     }
        !           300:
        !           301: # elif defined(WIN32_THREADS)
        !           302:     void fork_a_thread()
        !           303:     {
        !           304:        unsigned thread_id;
        !           305:        HANDLE h;
        !           306:        h = (HANDLE)_beginthreadex(NULL, 0, tiny_reverse_test,
        !           307:                                   0, 0, &thread_id);
        !           308:         if (h == (HANDLE)-1) {
        !           309:             (void)GC_printf1("Small thread creation failed %lu\n",
        !           310:                             (unsigned long)GetLastError());
        !           311:            FAIL;
        !           312:         }
        !           313:        if (WaitForSingleObject(h, INFINITE) != WAIT_OBJECT_0) {
        !           314:            (void)GC_printf1("Small thread wait failed %lu\n",
        !           315:                             (unsigned long)GetLastError());
        !           316:            FAIL;
        !           317:        }
        !           318:     }
        !           319:
        !           320: /* # elif defined(SOLARIS_THREADS) */
        !           321:
        !           322: # else
        !           323:
        !           324: #   define fork_a_thread()
        !           325:
        !           326: # endif
        !           327:
        !           328: #else
        !           329:
        !           330: # define fork_a_thread()
        !           331:
        !           332: #endif
        !           333:
        !           334: /*
        !           335:  * Repeatedly reverse lists built out of very different sized cons cells.
        !           336:  * Check that we didn't lose anything.
        !           337:  */
        !           338: void reverse_test()
        !           339: {
        !           340:     int i;
        !           341:     sexpr b;
        !           342:     sexpr c;
        !           343:     sexpr d;
        !           344:     sexpr e;
        !           345:     sexpr *f, *g, *h;
        !           346: #   if defined(MSWIN32) || defined(MACOS)
        !           347:       /* Win32S only allows 128K stacks */
        !           348: #     define BIG 1000
        !           349: #   else
        !           350: #     if defined PCR
        !           351:        /* PCR default stack is 100K.  Stack frames are up to 120 bytes. */
        !           352: #      define BIG 700
        !           353: #     else
        !           354: #       define BIG 4500
        !           355: #     endif
        !           356: #   endif
        !           357:
        !           358:     A.dummy = 17;
        !           359:     a = ints(1, 49);
        !           360:     b = ints(1, 50);
        !           361:     c = ints(1, BIG);
        !           362:     d = uncollectable_ints(1, 100);
        !           363:     e = uncollectable_ints(1, 1);
        !           364:     /* Check that realloc updates object descriptors correctly */
        !           365:     f = (sexpr *)GC_malloc(4 * sizeof(sexpr));
        !           366:     f = (sexpr *)GC_realloc((GC_PTR)f, 6 * sizeof(sexpr));
        !           367:     f[5] = ints(1,17);
        !           368:     g = (sexpr *)GC_malloc(513 * sizeof(sexpr));
        !           369:     g = (sexpr *)GC_realloc((GC_PTR)g, 800 * sizeof(sexpr));
        !           370:     g[799] = ints(1,18);
        !           371:     h = (sexpr *)GC_malloc(1025 * sizeof(sexpr));
        !           372:     h = (sexpr *)GC_realloc((GC_PTR)h, 2000 * sizeof(sexpr));
        !           373:     h[1999] = ints(1,19);
        !           374:     /* Try to force some collections and reuse of small list elements */
        !           375:       for (i = 0; i < 10; i++) {
        !           376:         (void)ints(1, BIG);
        !           377:       }
        !           378:     /* Superficially test interior pointer recognition on stack */
        !           379:     c = (sexpr)((char *)c + sizeof(char *));
        !           380:     d = (sexpr)((char *)d + sizeof(char *));
        !           381:
        !           382: #   ifdef __STDC__
        !           383:         GC_FREE((void *)e);
        !           384: #   else
        !           385:         GC_FREE((char *)e);
        !           386: #   endif
        !           387:     check_ints(b,1,50);
        !           388:     check_ints(a,1,49);
        !           389:     for (i = 0; i < 50; i++) {
        !           390:         check_ints(b,1,50);
        !           391:         b = reverse(reverse(b));
        !           392:     }
        !           393:     check_ints(b,1,50);
        !           394:     check_ints(a,1,49);
        !           395:     for (i = 0; i < 60; i++) {
        !           396:        if (i % 10 == 0) fork_a_thread();
        !           397:        /* This maintains the invariant that a always points to a list of */
        !           398:        /* 49 integers.  Thus this is thread safe without locks,          */
        !           399:        /* assuming atomic pointer assignments.                           */
        !           400:         a = reverse(reverse(a));
        !           401: #      if !defined(AT_END) && !defined(THREADS)
        !           402:          /* This is not thread safe, since realloc explicitly deallocates */
        !           403:           if (i & 1) {
        !           404:             a = (sexpr)GC_REALLOC((GC_PTR)a, 500);
        !           405:           } else {
        !           406:             a = (sexpr)GC_REALLOC((GC_PTR)a, 8200);
        !           407:           }
        !           408: #      endif
        !           409:     }
        !           410:     check_ints(a,1,49);
        !           411:     check_ints(b,1,50);
        !           412:     c = (sexpr)((char *)c - sizeof(char *));
        !           413:     d = (sexpr)((char *)d - sizeof(char *));
        !           414:     check_ints(c,1,BIG);
        !           415:     check_uncollectable_ints(d, 1, 100);
        !           416:     check_ints(f[5], 1,17);
        !           417:     check_ints(g[799], 1,18);
        !           418:     check_ints(h[1999], 1,19);
        !           419: #   ifndef THREADS
        !           420:        a = 0;
        !           421: #   endif
        !           422:     b = c = 0;
        !           423: }
        !           424:
        !           425: /*
        !           426:  * The rest of this builds balanced binary trees, checks that they don't
        !           427:  * disappear, and tests finalization.
        !           428:  */
        !           429: typedef struct treenode {
        !           430:     int level;
        !           431:     struct treenode * lchild;
        !           432:     struct treenode * rchild;
        !           433: } tn;
        !           434:
        !           435: int finalizable_count = 0;
        !           436: int finalized_count = 0;
        !           437: VOLATILE int dropped_something = 0;
        !           438:
        !           439: # ifdef __STDC__
        !           440:   void finalizer(void * obj, void * client_data)
        !           441: # else
        !           442:   void finalizer(obj, client_data)
        !           443:   char * obj;
        !           444:   char * client_data;
        !           445: # endif
        !           446: {
        !           447:   tn * t = (tn *)obj;
        !           448:
        !           449: # ifdef PCR
        !           450:      PCR_ThCrSec_EnterSys();
        !           451: # endif
        !           452: # ifdef SOLARIS_THREADS
        !           453:     static mutex_t incr_lock;
        !           454:     mutex_lock(&incr_lock);
        !           455: # endif
        !           456: # if  defined(IRIX_THREADS) || defined(LINUX_THREADS)
        !           457:     static pthread_mutex_t incr_lock = PTHREAD_MUTEX_INITIALIZER;
        !           458:     pthread_mutex_lock(&incr_lock);
        !           459: # endif
        !           460: # ifdef WIN32_THREADS
        !           461:     EnterCriticalSection(&incr_cs);
        !           462: # endif
        !           463:   if ((int)(GC_word)client_data != t -> level) {
        !           464:      (void)GC_printf0("Wrong finalization data - collector is broken\n");
        !           465:      FAIL;
        !           466:   }
        !           467:   finalized_count++;
        !           468: # ifdef PCR
        !           469:     PCR_ThCrSec_ExitSys();
        !           470: # endif
        !           471: # ifdef SOLARIS_THREADS
        !           472:     mutex_unlock(&incr_lock);
        !           473: # endif
        !           474: # if defined(IRIX_THREADS) || defined(LINUX_THREADS)
        !           475:     pthread_mutex_unlock(&incr_lock);
        !           476: # endif
        !           477: # ifdef WIN32_THREADS
        !           478:     LeaveCriticalSection(&incr_cs);
        !           479: # endif
        !           480: }
        !           481:
        !           482: size_t counter = 0;
        !           483:
        !           484: # define MAX_FINALIZED 8000
        !           485:
        !           486: # if !defined(MACOS)
        !           487:   GC_FAR GC_word live_indicators[MAX_FINALIZED] = {0};
        !           488: #else
        !           489:   /* Too big for THINK_C. have to allocate it dynamically. */
        !           490:   GC_word *live_indicators = 0;
        !           491: #endif
        !           492:
        !           493: int live_indicators_count = 0;
        !           494:
        !           495: tn * mktree(n)
        !           496: int n;
        !           497: {
        !           498:     tn * result = (tn *)GC_MALLOC(sizeof(tn));
        !           499:
        !           500: #if defined(MACOS)
        !           501:        /* get around static data limitations. */
        !           502:        if (!live_indicators)
        !           503:                live_indicators =
        !           504:                    (GC_word*)NewPtrClear(MAX_FINALIZED * sizeof(GC_word));
        !           505:        if (!live_indicators) {
        !           506:         (void)GC_printf0("Out of memory\n");
        !           507:         exit(1);
        !           508:     }
        !           509: #endif
        !           510:     if (n == 0) return(0);
        !           511:     if (result == 0) {
        !           512:         (void)GC_printf0("Out of memory\n");
        !           513:         exit(1);
        !           514:     }
        !           515:     result -> level = n;
        !           516:     result -> lchild = mktree(n-1);
        !           517:     result -> rchild = mktree(n-1);
        !           518:     if (counter++ % 17 == 0 && n >= 2) {
        !           519:         tn * tmp = result -> lchild -> rchild;
        !           520:
        !           521:         result -> lchild -> rchild = result -> rchild -> lchild;
        !           522:         result -> rchild -> lchild = tmp;
        !           523:     }
        !           524:     if (counter++ % 119 == 0) {
        !           525:         int my_index;
        !           526:
        !           527:         {
        !           528: #        ifdef PCR
        !           529:            PCR_ThCrSec_EnterSys();
        !           530: #        endif
        !           531: #        ifdef SOLARIS_THREADS
        !           532:            static mutex_t incr_lock;
        !           533:            mutex_lock(&incr_lock);
        !           534: #        endif
        !           535: #         if defined(IRIX_THREADS) || defined(LINUX_THREADS)
        !           536:             static pthread_mutex_t incr_lock = PTHREAD_MUTEX_INITIALIZER;
        !           537:             pthread_mutex_lock(&incr_lock);
        !           538: #         endif
        !           539: #         ifdef WIN32_THREADS
        !           540:             EnterCriticalSection(&incr_cs);
        !           541: #         endif
        !           542:                /* Losing a count here causes erroneous report of failure. */
        !           543:           finalizable_count++;
        !           544:           my_index = live_indicators_count++;
        !           545: #        ifdef PCR
        !           546:            PCR_ThCrSec_ExitSys();
        !           547: #        endif
        !           548: #        ifdef SOLARIS_THREADS
        !           549:            mutex_unlock(&incr_lock);
        !           550: #        endif
        !           551: #        if defined(IRIX_THREADS) || defined(LINUX_THREADS)
        !           552:            pthread_mutex_unlock(&incr_lock);
        !           553: #        endif
        !           554: #         ifdef WIN32_THREADS
        !           555:             LeaveCriticalSection(&incr_cs);
        !           556: #         endif
        !           557:        }
        !           558:
        !           559:         GC_REGISTER_FINALIZER((GC_PTR)result, finalizer, (GC_PTR)(GC_word)n,
        !           560:                              (GC_finalization_proc *)0, (GC_PTR *)0);
        !           561:         if (my_index >= MAX_FINALIZED) {
        !           562:                GC_printf0("live_indicators overflowed\n");
        !           563:                FAIL;
        !           564:        }
        !           565:         live_indicators[my_index] = 13;
        !           566:         if (GC_GENERAL_REGISTER_DISAPPEARING_LINK(
        !           567:                (GC_PTR *)(&(live_indicators[my_index])),
        !           568:                (GC_PTR)result) != 0) {
        !           569:                GC_printf0("GC_general_register_disappearing_link failed\n");
        !           570:                FAIL;
        !           571:         }
        !           572:         if (GC_unregister_disappearing_link(
        !           573:                (GC_PTR *)
        !           574:                   (&(live_indicators[my_index]))) == 0) {
        !           575:                GC_printf0("GC_unregister_disappearing_link failed\n");
        !           576:                FAIL;
        !           577:         }
        !           578:         if (GC_GENERAL_REGISTER_DISAPPEARING_LINK(
        !           579:                (GC_PTR *)(&(live_indicators[my_index])),
        !           580:                (GC_PTR)result) != 0) {
        !           581:                GC_printf0("GC_general_register_disappearing_link failed 2\n");
        !           582:                FAIL;
        !           583:         }
        !           584:     }
        !           585:     return(result);
        !           586: }
        !           587:
        !           588: void chktree(t,n)
        !           589: tn *t;
        !           590: int n;
        !           591: {
        !           592:     if (n == 0 && t != 0) {
        !           593:         (void)GC_printf0("Clobbered a leaf - collector is broken\n");
        !           594:         FAIL;
        !           595:     }
        !           596:     if (n == 0) return;
        !           597:     if (t -> level != n) {
        !           598:         (void)GC_printf1("Lost a node at level %lu - collector is broken\n",
        !           599:                         (unsigned long)n);
        !           600:         FAIL;
        !           601:     }
        !           602:     if (counter++ % 373 == 0) (void) GC_MALLOC(counter%5001);
        !           603:     chktree(t -> lchild, n-1);
        !           604:     if (counter++ % 73 == 0) (void) GC_MALLOC(counter%373);
        !           605:     chktree(t -> rchild, n-1);
        !           606: }
        !           607:
        !           608: # if defined(SOLARIS_THREADS) && !defined(_SOLARIS_PTHREADS)
        !           609: thread_key_t fl_key;
        !           610:
        !           611: void * alloc8bytes()
        !           612: {
        !           613: # ifdef SMALL_CONFIG
        !           614:     return(GC_malloc(8));
        !           615: # else
        !           616:     void ** my_free_list_ptr;
        !           617:     void * my_free_list;
        !           618:
        !           619:     if (thr_getspecific(fl_key, (void **)(&my_free_list_ptr)) != 0) {
        !           620:        (void)GC_printf0("thr_getspecific failed\n");
        !           621:        FAIL;
        !           622:     }
        !           623:     if (my_free_list_ptr == 0) {
        !           624:         my_free_list_ptr = GC_NEW_UNCOLLECTABLE(void *);
        !           625:         if (thr_setspecific(fl_key, my_free_list_ptr) != 0) {
        !           626:            (void)GC_printf0("thr_setspecific failed\n");
        !           627:            FAIL;
        !           628:         }
        !           629:     }
        !           630:     my_free_list = *my_free_list_ptr;
        !           631:     if (my_free_list == 0) {
        !           632:         my_free_list = GC_malloc_many(8);
        !           633:         if (my_free_list == 0) {
        !           634:             (void)GC_printf0("alloc8bytes out of memory\n");
        !           635:            FAIL;
        !           636:         }
        !           637:     }
        !           638:     *my_free_list_ptr = GC_NEXT(my_free_list);
        !           639:     GC_NEXT(my_free_list) = 0;
        !           640:     return(my_free_list);
        !           641: # endif
        !           642: }
        !           643:
        !           644: #else
        !           645:
        !           646: # if defined(_SOLARIS_PTHREADS) || defined(IRIX_THREADS) \
        !           647:      || defined(LINUX_THREADS)
        !           648: pthread_key_t fl_key;
        !           649:
        !           650: void * alloc8bytes()
        !           651: {
        !           652: # ifdef SMALL_CONFIG
        !           653:     return(GC_malloc(8));
        !           654: # else
        !           655:     void ** my_free_list_ptr;
        !           656:     void * my_free_list;
        !           657:
        !           658:     my_free_list_ptr = (void **)pthread_getspecific(fl_key);
        !           659:     if (my_free_list_ptr == 0) {
        !           660:         my_free_list_ptr = GC_NEW_UNCOLLECTABLE(void *);
        !           661:         if (pthread_setspecific(fl_key, my_free_list_ptr) != 0) {
        !           662:            (void)GC_printf0("pthread_setspecific failed\n");
        !           663:            FAIL;
        !           664:         }
        !           665:     }
        !           666:     my_free_list = *my_free_list_ptr;
        !           667:     if (my_free_list == 0) {
        !           668:         my_free_list = GC_malloc_many(8);
        !           669:         if (my_free_list == 0) {
        !           670:             (void)GC_printf0("alloc8bytes out of memory\n");
        !           671:            FAIL;
        !           672:         }
        !           673:     }
        !           674:     *my_free_list_ptr = GC_NEXT(my_free_list);
        !           675:     GC_NEXT(my_free_list) = 0;
        !           676:     return(my_free_list);
        !           677: # endif
        !           678: }
        !           679:
        !           680: # else
        !           681: #   define alloc8bytes() GC_MALLOC_ATOMIC(8)
        !           682: # endif
        !           683: #endif
        !           684:
        !           685: void alloc_small(n)
        !           686: int n;
        !           687: {
        !           688:     register int i;
        !           689:
        !           690:     for (i = 0; i < n; i += 8) {
        !           691:         if (alloc8bytes() == 0) {
        !           692:             (void)GC_printf0("Out of memory\n");
        !           693:             FAIL;
        !           694:         }
        !           695:     }
        !           696: }
        !           697:
        !           698: # if defined(THREADS) && defined(GC_DEBUG)
        !           699: #   define TREE_HEIGHT 15
        !           700: # else
        !           701: #   define TREE_HEIGHT 16
        !           702: # endif
        !           703: void tree_test()
        !           704: {
        !           705:     tn * root;
        !           706:     register int i;
        !           707:
        !           708:     root = mktree(TREE_HEIGHT);
        !           709:     alloc_small(5000000);
        !           710:     chktree(root, TREE_HEIGHT);
        !           711:     if (finalized_count && ! dropped_something) {
        !           712:         (void)GC_printf0("Premature finalization - collector is broken\n");
        !           713:         FAIL;
        !           714:     }
        !           715:     dropped_something = 1;
        !           716:     GC_noop(root);     /* Root needs to remain live until      */
        !           717:                        /* dropped_something is set.            */
        !           718:     root = mktree(TREE_HEIGHT);
        !           719:     chktree(root, TREE_HEIGHT);
        !           720:     for (i = TREE_HEIGHT; i >= 0; i--) {
        !           721:         root = mktree(i);
        !           722:         chktree(root, i);
        !           723:     }
        !           724:     alloc_small(5000000);
        !           725: }
        !           726:
        !           727: unsigned n_tests = 0;
        !           728:
        !           729: GC_word bm_huge[10] = {
        !           730:     0xffffffff,
        !           731:     0xffffffff,
        !           732:     0xffffffff,
        !           733:     0xffffffff,
        !           734:     0xffffffff,
        !           735:     0xffffffff,
        !           736:     0xffffffff,
        !           737:     0xffffffff,
        !           738:     0xffffffff,
        !           739:     0x00ffffff,
        !           740: };
        !           741:
        !           742:
        !           743: /* A very simple test of explicitly typed allocation   */
        !           744: void typed_test()
        !           745: {
        !           746:     GC_word * old, * new;
        !           747:     GC_word bm3 = 0x3;
        !           748:     GC_word bm2 = 0x2;
        !           749:     GC_word bm_large = 0xf7ff7fff;
        !           750:     GC_descr d1 = GC_make_descriptor(&bm3, 2);
        !           751:     GC_descr d2 = GC_make_descriptor(&bm2, 2);
        !           752: #   ifndef LINT
        !           753:       GC_descr dummy = GC_make_descriptor(&bm_large, 32);
        !           754: #   endif
        !           755:     GC_descr d3 = GC_make_descriptor(&bm_large, 32);
        !           756:     GC_descr d4 = GC_make_descriptor(bm_huge, 320);
        !           757:     GC_word * x = (GC_word *)GC_malloc_explicitly_typed(2000, d4);
        !           758:     register int i;
        !           759:
        !           760:     old = 0;
        !           761:     for (i = 0; i < 4000; i++) {
        !           762:         new = (GC_word *) GC_malloc_explicitly_typed(4 * sizeof(GC_word), d1);
        !           763:         new[0] = 17;
        !           764:         new[1] = (GC_word)old;
        !           765:         old = new;
        !           766:         new = (GC_word *) GC_malloc_explicitly_typed(4 * sizeof(GC_word), d2);
        !           767:         new[0] = 17;
        !           768:         new[1] = (GC_word)old;
        !           769:         old = new;
        !           770:         new = (GC_word *) GC_malloc_explicitly_typed(33 * sizeof(GC_word), d3);
        !           771:         new[0] = 17;
        !           772:         new[1] = (GC_word)old;
        !           773:         old = new;
        !           774:         new = (GC_word *) GC_calloc_explicitly_typed(4, 2 * sizeof(GC_word),
        !           775:                                                     d1);
        !           776:         new[0] = 17;
        !           777:         new[1] = (GC_word)old;
        !           778:         old = new;
        !           779:         if (i & 0xff) {
        !           780:           new = (GC_word *) GC_calloc_explicitly_typed(7, 3 * sizeof(GC_word),
        !           781:                                                     d2);
        !           782:         } else {
        !           783:           new = (GC_word *) GC_calloc_explicitly_typed(1001,
        !           784:                                                       3 * sizeof(GC_word),
        !           785:                                                       d2);
        !           786:         }
        !           787:         new[0] = 17;
        !           788:         new[1] = (GC_word)old;
        !           789:         old = new;
        !           790:     }
        !           791:     for (i = 0; i < 20000; i++) {
        !           792:         if (new[0] != 17) {
        !           793:             (void)GC_printf1("typed alloc failed at %lu\n",
        !           794:                             (unsigned long)i);
        !           795:             FAIL;
        !           796:         }
        !           797:         new[0] = 0;
        !           798:         old = new;
        !           799:         new = (GC_word *)(old[1]);
        !           800:     }
        !           801:     GC_gcollect();
        !           802:     GC_noop(x);
        !           803: }
        !           804:
        !           805: int fail_count = 0;
        !           806:
        !           807: #ifndef __STDC__
        !           808: /*ARGSUSED*/
        !           809: void fail_proc1(x)
        !           810: GC_PTR x;
        !           811: {
        !           812:     fail_count++;
        !           813: }
        !           814:
        !           815: #else
        !           816:
        !           817: /*ARGSUSED*/
        !           818: void fail_proc1(GC_PTR x)
        !           819: {
        !           820:     fail_count++;
        !           821: }
        !           822:
        !           823: #endif /* __STDC__ */
        !           824:
        !           825: #ifdef THREADS
        !           826: #   define TEST_FAIL_COUNT(n) 1
        !           827: #else
        !           828: #   define TEST_FAIL_COUNT(n) (fail_count >= (n))
        !           829: #endif
        !           830:
        !           831: void run_one_test()
        !           832: {
        !           833:     char *x;
        !           834: #   ifdef LINT
        !           835:        char *y = 0;
        !           836: #   else
        !           837:        char *y = (char *)(size_t)fail_proc1;
        !           838: #   endif
        !           839:     DCL_LOCK_STATE;
        !           840:
        !           841: #   ifdef FIND_LEAK
        !           842:        (void)GC_printf0(
        !           843:                "This test program is not designed for leak detection mode\n");
        !           844:        (void)GC_printf0("Expect lots of problems.\n");
        !           845: #   endif
        !           846:     if (GC_size(GC_malloc(7)) != 8
        !           847:        || GC_size(GC_malloc(15)) != 16) {
        !           848:            (void)GC_printf0("GC_size produced unexpected results\n");
        !           849:            FAIL;
        !           850:     }
        !           851:     if (GC_size(GC_malloc(0)) != 4 && GC_size(GC_malloc(0)) != 8) {
        !           852:        (void)GC_printf0("GC_malloc(0) failed\n");
        !           853:            FAIL;
        !           854:     }
        !           855:     if (GC_size(GC_malloc_uncollectable(0)) != 4
        !           856:         && GC_size(GC_malloc_uncollectable(0)) != 8) {
        !           857:        (void)GC_printf0("GC_malloc_uncollectable(0) failed\n");
        !           858:            FAIL;
        !           859:     }
        !           860:     GC_is_valid_displacement_print_proc = fail_proc1;
        !           861:     GC_is_visible_print_proc = fail_proc1;
        !           862:     x = GC_malloc(16);
        !           863:     if (GC_base(x + 13) != x) {
        !           864:        (void)GC_printf0("GC_base(heap ptr) produced incorrect result\n");
        !           865:        FAIL;
        !           866:     }
        !           867: #   ifndef PCR
        !           868:       if (GC_base(y) != 0) {
        !           869:        (void)GC_printf0("GC_base(fn_ptr) produced incorrect result\n");
        !           870:        FAIL;
        !           871:       }
        !           872: #   endif
        !           873:     if (GC_same_obj(x+5, x) != x + 5) {
        !           874:        (void)GC_printf0("GC_same_obj produced incorrect result\n");
        !           875:        FAIL;
        !           876:     }
        !           877:     if (GC_is_visible(y) != y || GC_is_visible(x) != x) {
        !           878:        (void)GC_printf0("GC_is_visible produced incorrect result\n");
        !           879:        FAIL;
        !           880:     }
        !           881:     if (!TEST_FAIL_COUNT(1)) {
        !           882: #      if!(defined(RS6000) || defined(POWERPC))
        !           883:          /* ON RS6000s function pointers point to a descriptor in the  */
        !           884:          /* data segment, so there should have been no failures.       */
        !           885:          (void)GC_printf0("GC_is_visible produced wrong failure indication\n");
        !           886:          FAIL;
        !           887: #      endif
        !           888:     }
        !           889:     if (GC_is_valid_displacement(y) != y
        !           890:         || GC_is_valid_displacement(x) != x
        !           891:         || GC_is_valid_displacement(x + 3) != x + 3) {
        !           892:        (void)GC_printf0(
        !           893:                "GC_is_valid_displacement produced incorrect result\n");
        !           894:        FAIL;
        !           895:     }
        !           896: #   ifndef ALL_INTERIOR_POINTERS
        !           897: #    if defined(RS6000) || defined(POWERPC)
        !           898:       if (!TEST_FAIL_COUNT(1)) {
        !           899: #    else
        !           900:       if (!TEST_FAIL_COUNT(2)) {
        !           901: #    endif
        !           902:        (void)GC_printf0("GC_is_valid_displacement produced wrong failure indication\n");
        !           903:        FAIL;
        !           904:       }
        !           905: #   endif
        !           906:     /* Test floating point alignment */
        !           907:        *(double *)GC_MALLOC(sizeof(double)) = 1.0;
        !           908:        *(double *)GC_MALLOC(sizeof(double)) = 1.0;
        !           909:     /* Repeated list reversal test. */
        !           910:        reverse_test();
        !           911: #   ifdef PRINTSTATS
        !           912:        GC_printf0("-------------Finished reverse_test\n");
        !           913: #   endif
        !           914:     typed_test();
        !           915: #   ifdef PRINTSTATS
        !           916:        GC_printf0("-------------Finished typed_test\n");
        !           917: #   endif
        !           918:     tree_test();
        !           919:     LOCK();
        !           920:     n_tests++;
        !           921:     UNLOCK();
        !           922:     /* GC_printf1("Finished %x\n", pthread_self()); */
        !           923: }
        !           924:
        !           925: void check_heap_stats()
        !           926: {
        !           927:     unsigned long max_heap_sz;
        !           928:     register int i;
        !           929:     int still_live;
        !           930:     int late_finalize_count = 0;
        !           931:
        !           932:     if (sizeof(char *) > 4) {
        !           933:         max_heap_sz = 15000000;
        !           934:     } else {
        !           935:        max_heap_sz = 11000000;
        !           936:     }
        !           937: #   ifdef GC_DEBUG
        !           938:        max_heap_sz *= 2;
        !           939: #       ifdef SPARC
        !           940:            max_heap_sz *= 2;
        !           941: #       endif
        !           942: #   endif
        !           943:     /* Garbage collect repeatedly so that all inaccessible objects     */
        !           944:     /* can be finalized.                                               */
        !           945:       while (GC_collect_a_little()) { }
        !           946:       for (i = 0; i < 16; i++) {
        !           947:         GC_gcollect();
        !           948:         late_finalize_count += GC_invoke_finalizers();
        !           949:       }
        !           950:     (void)GC_printf1("Completed %lu tests\n", (unsigned long)n_tests);
        !           951:     (void)GC_printf2("Finalized %lu/%lu objects - ",
        !           952:                     (unsigned long)finalized_count,
        !           953:                     (unsigned long)finalizable_count);
        !           954: #   ifdef FINALIZE_ON_DEMAND
        !           955:        if (finalized_count != late_finalize_count) {
        !           956:             (void)GC_printf0("Demand finalization error\n");
        !           957:            FAIL;
        !           958:        }
        !           959: #   endif
        !           960:     if (finalized_count > finalizable_count
        !           961:         || finalized_count < finalizable_count/2) {
        !           962:         (void)GC_printf0("finalization is probably broken\n");
        !           963:         FAIL;
        !           964:     } else {
        !           965:         (void)GC_printf0("finalization is probably ok\n");
        !           966:     }
        !           967:     still_live = 0;
        !           968:     for (i = 0; i < MAX_FINALIZED; i++) {
        !           969:        if (live_indicators[i] != 0) {
        !           970:            still_live++;
        !           971:        }
        !           972:     }
        !           973:     i = finalizable_count - finalized_count - still_live;
        !           974:     if (0 != i) {
        !           975:         (void)GC_printf2
        !           976:             ("%lu disappearing links remain and %lu more objects were not finalized\n",
        !           977:              (unsigned long) still_live, (unsigned long)i);
        !           978:         if (i > 10) {
        !           979:            GC_printf0("\tVery suspicious!\n");
        !           980:        } else {
        !           981:            GC_printf0("\tSlightly suspicious, but probably OK.\n");
        !           982:        }
        !           983:     }
        !           984:     (void)GC_printf1("Total number of bytes allocated is %lu\n",
        !           985:                (unsigned long)
        !           986:                   WORDS_TO_BYTES(GC_words_allocd + GC_words_allocd_before_gc));
        !           987:     (void)GC_printf1("Final heap size is %lu bytes\n",
        !           988:                     (unsigned long)GC_get_heap_size());
        !           989:     if (WORDS_TO_BYTES(GC_words_allocd + GC_words_allocd_before_gc)
        !           990:         < 33500000*n_tests) {
        !           991:         (void)GC_printf0("Incorrect execution - missed some allocations\n");
        !           992:         FAIL;
        !           993:     }
        !           994:     if (GC_get_heap_size() > max_heap_sz*n_tests) {
        !           995:         (void)GC_printf0("Unexpected heap growth - collector may be broken\n");
        !           996:         FAIL;
        !           997:     }
        !           998:     (void)GC_printf0("Collector appears to work\n");
        !           999: }
        !          1000:
        !          1001: #if defined(MACOS)
        !          1002: void SetMinimumStack(long minSize)
        !          1003: {
        !          1004:        long newApplLimit;
        !          1005:
        !          1006:        if (minSize > LMGetDefltStack())
        !          1007:        {
        !          1008:                newApplLimit = (long) GetApplLimit()
        !          1009:                                - (minSize - LMGetDefltStack());
        !          1010:                SetApplLimit((Ptr) newApplLimit);
        !          1011:                MaxApplZone();
        !          1012:        }
        !          1013: }
        !          1014:
        !          1015: #define cMinStackSpace (512L * 1024L)
        !          1016:
        !          1017: #endif
        !          1018:
        !          1019: #ifdef __STDC__
        !          1020:     void warn_proc(char *msg, GC_word p)
        !          1021: #else
        !          1022:     void warn_proc(msg, p)
        !          1023:     char *msg;
        !          1024:     GC_word p;
        !          1025: #endif
        !          1026: {
        !          1027:     GC_printf1(msg, (unsigned long)p);
        !          1028:     FAIL;
        !          1029: }
        !          1030:
        !          1031:
        !          1032: #if !defined(PCR) && !defined(SOLARIS_THREADS) && !defined(WIN32_THREADS) \
        !          1033:   && !defined(IRIX_THREADS) && !defined(LINUX_THREADS) || defined(LINT)
        !          1034: #ifdef MSWIN32
        !          1035:   int APIENTRY WinMain(HINSTANCE instance, HINSTANCE prev, LPSTR cmd, int n)
        !          1036: #else
        !          1037:   int main()
        !          1038: #endif
        !          1039: {
        !          1040: #   if defined(DJGPP)
        !          1041:        int dummy;
        !          1042: #   endif
        !          1043:     n_tests = 0;
        !          1044:
        !          1045: #   if defined(DJGPP)
        !          1046:        /* No good way to determine stack base from library; do it */
        !          1047:        /* manually on this platform.                              */
        !          1048:        GC_stackbottom = (GC_PTR)(&dummy);
        !          1049: #   endif
        !          1050: #   if defined(MACOS)
        !          1051:        /* Make sure we have lots and lots of stack space.      */
        !          1052:        SetMinimumStack(cMinStackSpace);
        !          1053:        /* Cheat and let stdio initialize toolbox for us.       */
        !          1054:        printf("Testing GC Macintosh port.\n");
        !          1055: #   endif
        !          1056:     GC_INIT(); /* Only needed if gc is dynamic library.        */
        !          1057:     (void) GC_set_warn_proc(warn_proc);
        !          1058: #   if defined(MPROTECT_VDB) || defined(PROC_VDB)
        !          1059:       GC_enable_incremental();
        !          1060:       (void) GC_printf0("Switched to incremental mode\n");
        !          1061: #     if defined(MPROTECT_VDB)
        !          1062:        (void)GC_printf0("Emulating dirty bits with mprotect/signals\n");
        !          1063: #     else
        !          1064:        (void)GC_printf0("Reading dirty bits from /proc\n");
        !          1065: #      endif
        !          1066: #   endif
        !          1067:     run_one_test();
        !          1068:     check_heap_stats();
        !          1069:     (void)fflush(stdout);
        !          1070: #   ifdef LINT
        !          1071:        /* Entry points we should be testing, but aren't.                  */
        !          1072:        /* Some can be tested by defining GC_DEBUG at the top of this file */
        !          1073:        /* This is a bit SunOS4 specific.                                  */
        !          1074:        GC_noop(GC_expand_hp, GC_add_roots, GC_clear_roots,
        !          1075:                GC_register_disappearing_link,
        !          1076:                GC_register_finalizer_ignore_self,
        !          1077:                GC_debug_register_displacement,
        !          1078:                GC_print_obj, GC_debug_change_stubborn,
        !          1079:                GC_debug_end_stubborn_change, GC_debug_malloc_uncollectable,
        !          1080:                GC_debug_free, GC_debug_realloc, GC_generic_malloc_words_small,
        !          1081:                GC_init, GC_make_closure, GC_debug_invoke_finalizer,
        !          1082:                GC_page_was_ever_dirty, GC_is_fresh,
        !          1083:                GC_malloc_ignore_off_page, GC_malloc_atomic_ignore_off_page,
        !          1084:                GC_set_max_heap_size, GC_get_bytes_since_gc,
        !          1085:                GC_pre_incr, GC_post_incr);
        !          1086: #   endif
        !          1087: #   ifdef MSWIN32
        !          1088:       GC_win32_free_heap();
        !          1089: #   endif
        !          1090:     return(0);
        !          1091: }
        !          1092: # endif
        !          1093:
        !          1094: #ifdef WIN32_THREADS
        !          1095:
        !          1096: unsigned __stdcall thr_run_one_test(void *arg)
        !          1097: {
        !          1098:   run_one_test();
        !          1099:   return 0;
        !          1100: }
        !          1101:
        !          1102: #define NTEST 2
        !          1103:
        !          1104: int APIENTRY WinMain(HINSTANCE instance, HINSTANCE prev, LPSTR cmd, int n)
        !          1105: {
        !          1106: # if NTEST > 0
        !          1107:    HANDLE h[NTEST];
        !          1108: # endif
        !          1109:   int i;
        !          1110:   unsigned thread_id;
        !          1111: # if 0
        !          1112:     GC_enable_incremental();
        !          1113: # endif
        !          1114:   InitializeCriticalSection(&incr_cs);
        !          1115:   (void) GC_set_warn_proc(warn_proc);
        !          1116:   for (i = 0; i < NTEST; i++) {
        !          1117:     h[i] = (HANDLE)_beginthreadex(NULL, 0, thr_run_one_test, 0, 0, &thread_id);
        !          1118:     if (h[i] == (HANDLE)-1) {
        !          1119:       (void)GC_printf1("Thread creation failed %lu\n", (unsigned long)GetLastError());
        !          1120:       FAIL;
        !          1121:     }
        !          1122:   }
        !          1123:   run_one_test();
        !          1124:   for (i = 0; i < NTEST; i++)
        !          1125:     if (WaitForSingleObject(h[i], INFINITE) != WAIT_OBJECT_0) {
        !          1126:       (void)GC_printf1("Thread wait failed %lu\n", (unsigned long)GetLastError());
        !          1127:       FAIL;
        !          1128:     }
        !          1129:   check_heap_stats();
        !          1130:   (void)fflush(stdout);
        !          1131:   return(0);
        !          1132: }
        !          1133:
        !          1134: #endif /* WIN32_THREADS */
        !          1135:
        !          1136:
        !          1137: #ifdef PCR
        !          1138: test()
        !          1139: {
        !          1140:     PCR_Th_T * th1;
        !          1141:     PCR_Th_T * th2;
        !          1142:     int code;
        !          1143:
        !          1144:     n_tests = 0;
        !          1145:     /* GC_enable_incremental(); */
        !          1146:     (void) GC_set_warn_proc(warn_proc);
        !          1147:     th1 = PCR_Th_Fork(run_one_test, 0);
        !          1148:     th2 = PCR_Th_Fork(run_one_test, 0);
        !          1149:     run_one_test();
        !          1150:     if (PCR_Th_T_Join(th1, &code, NIL, PCR_allSigsBlocked, PCR_waitForever)
        !          1151:         != PCR_ERes_okay || code != 0) {
        !          1152:         (void)GC_printf0("Thread 1 failed\n");
        !          1153:     }
        !          1154:     if (PCR_Th_T_Join(th2, &code, NIL, PCR_allSigsBlocked, PCR_waitForever)
        !          1155:         != PCR_ERes_okay || code != 0) {
        !          1156:         (void)GC_printf0("Thread 2 failed\n");
        !          1157:     }
        !          1158:     check_heap_stats();
        !          1159:     (void)fflush(stdout);
        !          1160:     return(0);
        !          1161: }
        !          1162: #endif
        !          1163:
        !          1164: #if defined(SOLARIS_THREADS) || defined(IRIX_THREADS) || defined(LINUX_THREADS)
        !          1165: void * thr_run_one_test(void * arg)
        !          1166: {
        !          1167:     run_one_test();
        !          1168:     return(0);
        !          1169: }
        !          1170:
        !          1171: #ifdef GC_DEBUG
        !          1172: #  define GC_free GC_debug_free
        !          1173: #endif
        !          1174:
        !          1175: #ifdef SOLARIS_THREADS
        !          1176: main()
        !          1177: {
        !          1178:     thread_t th1;
        !          1179:     thread_t th2;
        !          1180:     int code;
        !          1181:
        !          1182:     n_tests = 0;
        !          1183:     GC_INIT(); /* Only needed if gc is dynamic library.        */
        !          1184:     GC_enable_incremental();
        !          1185:     (void) GC_set_warn_proc(warn_proc);
        !          1186:     if (thr_keycreate(&fl_key, GC_free) != 0) {
        !          1187:         (void)GC_printf1("Key creation failed %lu\n", (unsigned long)code);
        !          1188:        FAIL;
        !          1189:     }
        !          1190:     if ((code = thr_create(0, 1024*1024, thr_run_one_test, 0, 0, &th1)) != 0) {
        !          1191:        (void)GC_printf1("Thread 1 creation failed %lu\n", (unsigned long)code);
        !          1192:        FAIL;
        !          1193:     }
        !          1194:     if ((code = thr_create(0, 1024*1024, thr_run_one_test, 0, THR_NEW_LWP, &th2)) != 0) {
        !          1195:        (void)GC_printf1("Thread 2 creation failed %lu\n", (unsigned long)code);
        !          1196:        FAIL;
        !          1197:     }
        !          1198:     run_one_test();
        !          1199:     if ((code = thr_join(th1, 0, 0)) != 0) {
        !          1200:         (void)GC_printf1("Thread 1 failed %lu\n", (unsigned long)code);
        !          1201:         FAIL;
        !          1202:     }
        !          1203:     if (thr_join(th2, 0, 0) != 0) {
        !          1204:         (void)GC_printf1("Thread 2 failed %lu\n", (unsigned long)code);
        !          1205:         FAIL;
        !          1206:     }
        !          1207:     check_heap_stats();
        !          1208:     (void)fflush(stdout);
        !          1209:     return(0);
        !          1210: }
        !          1211: #else /* pthreads */
        !          1212: main()
        !          1213: {
        !          1214:     pthread_t th1;
        !          1215:     pthread_t th2;
        !          1216:     pthread_attr_t attr;
        !          1217:     int code;
        !          1218:
        !          1219: #   ifdef IRIX_THREADS
        !          1220:        /* Force a larger stack to be preallocated      */
        !          1221:        /* Since the initial cant always grow later.    */
        !          1222:        *((volatile char *)&code - 1024*1024) = 0;      /* Require 1 Mb */
        !          1223: #   endif /* IRIX_THREADS */
        !          1224:     pthread_attr_init(&attr);
        !          1225: #   ifdef IRIX_THREADS
        !          1226:        pthread_attr_setstacksize(&attr, 1000000);
        !          1227: #   endif
        !          1228:     n_tests = 0;
        !          1229: #   ifdef MPROTECT_VDB
        !          1230:        GC_enable_incremental();
        !          1231:         (void) GC_printf0("Switched to incremental mode\n");
        !          1232:        (void) GC_printf0("Emulating dirty bits with mprotect/signals\n");
        !          1233: #   endif
        !          1234:     (void) GC_set_warn_proc(warn_proc);
        !          1235:     if (pthread_key_create(&fl_key, 0) != 0) {
        !          1236:         (void)GC_printf1("Key creation failed %lu\n", (unsigned long)code);
        !          1237:        FAIL;
        !          1238:     }
        !          1239:     if ((code = pthread_create(&th1, &attr, thr_run_one_test, 0)) != 0) {
        !          1240:        (void)GC_printf1("Thread 1 creation failed %lu\n", (unsigned long)code);
        !          1241:        FAIL;
        !          1242:     }
        !          1243:     if ((code = pthread_create(&th2, &attr, thr_run_one_test, 0)) != 0) {
        !          1244:        (void)GC_printf1("Thread 2 creation failed %lu\n", (unsigned long)code);
        !          1245:        FAIL;
        !          1246:     }
        !          1247:     run_one_test();
        !          1248:     if ((code = pthread_join(th1, 0)) != 0) {
        !          1249:         (void)GC_printf1("Thread 1 failed %lu\n", (unsigned long)code);
        !          1250:         FAIL;
        !          1251:     }
        !          1252:     if (pthread_join(th2, 0) != 0) {
        !          1253:         (void)GC_printf1("Thread 2 failed %lu\n", (unsigned long)code);
        !          1254:         FAIL;
        !          1255:     }
        !          1256:     check_heap_stats();
        !          1257:     (void)fflush(stdout);
        !          1258:     pthread_attr_destroy(&attr);
        !          1259:     GC_printf1("Completed %d collections\n", GC_gc_no);
        !          1260:     return(0);
        !          1261: }
        !          1262: #endif /* pthreads */
        !          1263: #endif /* SOLARIS_THREADS || IRIX_THREADS || LINUX_THREADS */

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