test.c

linux下建立JAVA虚拟机的源码KAFFE

void check_ints(list, low, up)
sexpr list;
int low, up;
{
    if ((int)(GC_word)(car(car(list))) != low) {
        (void)GC_printf0(
           "List reversal produced incorrect list - collector is broken\n");
        FAIL;
    }
    if (low == up) {
        if (cdr(list) != nil) {
           (void)GC_printf0("List too long - collector is broken\n");
           FAIL;
        }
    } else {
        check_ints(cdr(list), low+1, up);
    }
}

# define UNCOLLECTABLE_CDR(x) (sexpr)(~(unsigned long)(cdr(x)))

void check_uncollectable_ints(list, low, up)
sexpr list;
int low, up;
{
    if ((int)(GC_word)(car(car(list))) != low) {
        (void)GC_printf0(
           "Uncollectable list corrupted - collector is broken\n");
        FAIL;
    }
    if (low == up) {
        if (UNCOLLECTABLE_CDR(list) != nil) {
           (void)GC_printf0("Uncollectable list too long - collector is broken\n");
           FAIL;
        }
    } else {
        check_uncollectable_ints(UNCOLLECTABLE_CDR(list), low+1, up);
    }
}

/* Not used, but useful for debugging: */
void print_int_list(x)
sexpr x;
{
    if (is_nil(x)) {
        (void)GC_printf0("NIL\n");
    } else {
        (void)GC_printf1("(%ld)", (long)(car(car(x))));
        if (!is_nil(cdr(x))) {
            (void)GC_printf0(", ");
            (void)print_int_list(cdr(x));
        } else {
            (void)GC_printf0("\n");
        }
    }
}

/*
 * A tiny list reversal test to check thread creation.
 */
#ifdef THREADS

# if defined(GC_WIN32_THREADS) && !defined(CYGWIN32)
    DWORD  __stdcall tiny_reverse_test(void * arg)
# else
    void * tiny_reverse_test(void * arg)
# endif
{
    int i;
    for (i = 0; i < 5; ++i) {
      check_ints(reverse(reverse(ints(1,10))), 1, 10);
#     ifdef THREAD_LOCAL_ALLOC
        check_ints(local_reverse(local_reverse(local_ints(1,10))), 1, 10);
#     endif
    }
    return 0;
}

# if defined(GC_PTHREADS)
    void fork_a_thread()
    {
      pthread_t t;
      int code;
      if ((code = pthread_create(&t, 0, tiny_reverse_test, 0)) != 0) {
    	(void)GC_printf1("Small thread creation failed %lu\n",
		         (unsigned long)code);
    	FAIL;
      }
      if ((code = pthread_join(t, 0)) != 0) {
        (void)GC_printf1("Small thread join failed %lu\n",
	(unsigned long)code);
        FAIL;
      }
    }

# elif defined(GC_WIN32_THREADS)
    void fork_a_thread()
    {
  	DWORD thread_id;
	HANDLE h;
    	h = GC_CreateThread(NULL, 0, tiny_reverse_test, 0, 0, &thread_id);
        if (h == (HANDLE)NULL) {
            (void)GC_printf1("Small thread creation failed %lu\n",
			     (unsigned long)GetLastError());
      	    FAIL;
        }
    	if (WaitForSingleObject(h, INFINITE) != WAIT_OBJECT_0) {
      	    (void)GC_printf1("Small thread wait failed %lu\n",
			     (unsigned long)GetLastError());
      	    FAIL;
    	}
    }

/* # elif defined(GC_SOLARIS_THREADS) */

# else

#   define fork_a_thread()

# endif

#else

# define fork_a_thread()

#endif 

/* Try to force a to be strangely aligned */
struct {
  char dummy;
  sexpr aa;
} A;
#define a A.aa

/*
 * Repeatedly reverse lists built out of very different sized cons cells.
 * Check that we didn't lose anything.
 */
void reverse_test()
{
    int i;
    sexpr b;
    sexpr c;
    sexpr d;
    sexpr e;
    sexpr *f, *g, *h;
#   if defined(MSWIN32) || defined(MACOS)
      /* Win32S only allows 128K stacks */
#     define BIG 1000
#   else
#     if defined PCR
	/* PCR default stack is 100K.  Stack frames are up to 120 bytes. */
#	define BIG 700
#     else
#	if defined MSWINCE
	  /* WinCE only allows 64K stacks */
#	  define BIG 500
#	else
#	  if defined(OSF1)
	    /* OSF has limited stack space by default, and large frames. */
#           define BIG 200
#	  else
#           define BIG 4500
#	  endif
#	endif
#     endif
#   endif

    A.dummy = 17;
    a = ints(1, 49);
    b = ints(1, 50);
    c = ints(1, BIG);
    d = uncollectable_ints(1, 100);
    e = uncollectable_ints(1, 1);
    /* Check that realloc updates object descriptors correctly */
    collectable_count++;
    f = (sexpr *)GC_MALLOC(4 * sizeof(sexpr));
    realloc_count++;
    f = (sexpr *)GC_REALLOC((GC_PTR)f, 6 * sizeof(sexpr));
    f[5] = ints(1,17);
    collectable_count++;
    g = (sexpr *)GC_MALLOC(513 * sizeof(sexpr));
    realloc_count++;
    g = (sexpr *)GC_REALLOC((GC_PTR)g, 800 * sizeof(sexpr));
    g[799] = ints(1,18);
    collectable_count++;
    h = (sexpr *)GC_MALLOC(1025 * sizeof(sexpr));
    realloc_count++;
    h = (sexpr *)GC_REALLOC((GC_PTR)h, 2000 * sizeof(sexpr));
#   ifdef GC_GCJ_SUPPORT
      h[1999] = gcj_ints(1,200);
      for (i = 0; i < 51; ++i) 
        h[1999] = gcj_reverse(h[1999]);
      /* Leave it as the reveresed list for now. */
#   else
      h[1999] = ints(1,200);
#   endif
    /* Try to force some collections and reuse of small list elements */
      for (i = 0; i < 10; i++) {
        (void)ints(1, BIG);
      }
    /* Superficially test interior pointer recognition on stack */
      c = (sexpr)((char *)c + sizeof(char *));
      d = (sexpr)((char *)d + sizeof(char *));

#   ifdef __STDC__
        GC_FREE((void *)e);
#   else
        GC_FREE((char *)e);
#   endif
    check_ints(b,1,50);
    check_ints(a,1,49);
    for (i = 0; i < 50; i++) {
        check_ints(b,1,50);
        b = reverse(reverse(b));
    }
    check_ints(b,1,50);
    check_ints(a,1,49);
    for (i = 0; i < 60; i++) {
	if (i % 10 == 0) fork_a_thread();
    	/* This maintains the invariant that a always points to a list of */
    	/* 49 integers.  Thus this is thread safe without locks,	  */
    	/* assuming atomic pointer assignments.				  */
        a = reverse(reverse(a));
#       ifdef THREAD_LOCAL_ALLOC
	  a = local_reverse(local_reverse(a));
#	endif
#	if !defined(AT_END) && !defined(THREADS)
	  /* This is not thread safe, since realloc explicitly deallocates */
          if (i & 1) {
            a = (sexpr)GC_REALLOC((GC_PTR)a, 500);
          } else {
            a = (sexpr)GC_REALLOC((GC_PTR)a, 8200);
          }
#	endif
    }
    check_ints(a,1,49);
    check_ints(b,1,50);
    c = (sexpr)((char *)c - sizeof(char *));
    d = (sexpr)((char *)d - sizeof(char *));
    check_ints(c,1,BIG);
    check_uncollectable_ints(d, 1, 100);
    check_ints(f[5], 1,17);
    check_ints(g[799], 1,18);
#   ifdef GC_GCJ_SUPPORT
      h[1999] = gcj_reverse(h[1999]);
#   endif
    check_ints(h[1999], 1,200);
#   ifndef THREADS
	a = 0;
#   endif  
    b = c = 0;
}

#undef a

/*
 * The rest of this builds balanced binary trees, checks that they don't
 * disappear, and tests finalization.
 */
typedef struct treenode {
    int level;
    struct treenode * lchild;
    struct treenode * rchild;
} tn;

int finalizable_count = 0;
int finalized_count = 0;
VOLATILE int dropped_something = 0;

# ifdef __STDC__
  void finalizer(void * obj, void * client_data)
# else
  void finalizer(obj, client_data)
  char * obj;
  char * client_data;
# endif
{
  tn * t = (tn *)obj;

# ifdef PCR
     PCR_ThCrSec_EnterSys();
# endif
# if defined(GC_SOLARIS_THREADS) && !defined(GC_SOLARIS_PTHREADS)
    static mutex_t incr_lock;
    mutex_lock(&incr_lock);
# endif
# if  defined(GC_PTHREADS)
    static pthread_mutex_t incr_lock = PTHREAD_MUTEX_INITIALIZER;
    pthread_mutex_lock(&incr_lock);
# else
#   ifdef GC_WIN32_THREADS
      EnterCriticalSection(&incr_cs);
#   endif
# endif
  if ((int)(GC_word)client_data != t -> level) {
     (void)GC_printf0("Wrong finalization data - collector is broken\n");
     FAIL;
  }
  finalized_count++;
  t -> level = -1;	/* detect duplicate finalization immediately */
# ifdef PCR
    PCR_ThCrSec_ExitSys();
# endif
# if defined(GC_SOLARIS_THREADS) && !defined(GC_SOLARIS_PTHREADS)
    mutex_unlock(&incr_lock);
# endif
# if defined(GC_PTHREADS)
    pthread_mutex_unlock(&incr_lock);
# else
#   ifdef GC_WIN32_THREADS
      LeaveCriticalSection(&incr_cs);
#   endif
# endif
}

size_t counter = 0;

# define MAX_FINALIZED 8000

# if !defined(MACOS)
  GC_FAR GC_word live_indicators[MAX_FINALIZED] = {0};
#else
  /* Too big for THINK_C. have to allocate it dynamically. */
  GC_word *live_indicators = 0;
#endif

int live_indicators_count = 0;

tn * mktree(n)
int n;
{
#   ifdef THREAD_LOCAL_ALLOC
      tn * result = (tn *)GC_LOCAL_MALLOC(sizeof(tn));
#   else
      tn * result = (tn *)GC_MALLOC(sizeof(tn));
#   endif
    
    collectable_count++;
#   ifdef THREAD_LOCAL_ALLOC
       /* Minimally exercise thread local allocation */
       {
         char * result = (char *)GC_LOCAL_MALLOC_ATOMIC(17);
	 memset(result, 'a', 17);
       }
#   endif /* THREAD_LOCAL_ALLOC */
#   if defined(MACOS)
	/* get around static data limitations. */
	if (!live_indicators)
		live_indicators =
		    (GC_word*)NewPtrClear(MAX_FINALIZED * sizeof(GC_word));
	if (!live_indicators) {
          (void)GC_printf0("Out of memory\n");
          exit(1);
        }
#   endif
    if (n == 0) return(0);
    if (result == 0) {
        (void)GC_printf0("Out of memory\n");
        exit(1);
    }
    result -> level = n;
    result -> lchild = mktree(n-1);
    result -> rchild = mktree(n-1);
    if (counter++ % 17 == 0 && n >= 2) {
        tn * tmp = result -> lchild -> rchild;
        
        result -> lchild -> rchild = result -> rchild -> lchild;
        result -> rchild -> lchild = tmp;
    }
    if (counter++ % 119 == 0) {
        int my_index;
        
        {
#	  ifdef PCR
 	    PCR_ThCrSec_EnterSys();
#	  endif
#	  if defined(GC_SOLARIS_THREADS) && !defined(GC_SOLARIS_PTHREADS)
	    static mutex_t incr_lock;
	    mutex_lock(&incr_lock);
#	  endif
#         if defined(GC_PTHREADS)
            static pthread_mutex_t incr_lock = PTHREAD_MUTEX_INITIALIZER;
            pthread_mutex_lock(&incr_lock);
#         else
#           ifdef GC_WIN32_THREADS
              EnterCriticalSection(&incr_cs);
#           endif
#         endif
		/* Losing a count here causes erroneous report of failure. */
          finalizable_count++;
          my_index = live_indicators_count++;
#	  ifdef PCR
 	    PCR_ThCrSec_ExitSys();
#	  endif
#	  if defined(GC_SOLARIS_THREADS) && !defined(GC_SOLARIS_PTHREADS)
	    mutex_unlock(&incr_lock);
#	  endif
#	  if defined(GC_PTHREADS)
	    pthread_mutex_unlock(&incr_lock);
#	  else
#           ifdef GC_WIN32_THREADS
              LeaveCriticalSection(&incr_cs);
#           endif
#         endif
	}

        GC_REGISTER_FINALIZER((GC_PTR)result, finalizer, (GC_PTR)(GC_word)n,
        		      (GC_finalization_proc *)0, (GC_PTR *)0);
        if (my_index >= MAX_FINALIZED) {
		GC_printf0("live_indicators overflowed\n");
		FAIL;
	}
        live_indicators[my_index] = 13;
        if (GC_GENERAL_REGISTER_DISAPPEARING_LINK(
         	(GC_PTR *)(&(live_indicators[my_index])),
         	(GC_PTR)result) != 0) {
         	GC_printf0("GC_general_register_disappearing_link failed\n");
         	FAIL;
        }
        if (GC_unregister_disappearing_link(
         	(GC_PTR *)
         	   (&(live_indicators[my_index]))) == 0) {
         	GC_printf0("GC_unregister_disappearing_link failed\n");
         	FAIL;
        }
        if (GC_GENERAL_REGISTER_DISAPPEARING_LINK(
         	(GC_PTR *)(&(live_indicators[my_index])),
         	(GC_PTR)result) != 0) {
         	GC_printf0("GC_general_register_disappearing_link failed 2\n");
         	FAIL;
        }
    }
    return(result);
}

void chktree(t,n)
tn *t;
int n;
{
    if (n == 0 && t != 0) {
        (void)GC_printf0("Clobbered a leaf - collector is broken\n");
        FAIL;
    }
    if (n == 0) return;
    if (t -> level != n) {
        (void)GC_printf1("Lost a node at level %lu - collector is broken\n",
        		 (unsigned long)n);
        FAIL;
    }
    if (counter++ % 373 == 0) {
	collectable_count++;
	(void) GC_MALLOC(counter%5001);
    }
    chktree(t -> lchild, n-1);
    if (counter++ % 73 == 0) {
	collectable_count++;
	(void) GC_MALLOC(counter%373);
    }
    chktree(t -> rchild, n-1);
}