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-rw-r--r--avl-1.4.0/thread-test.c142
1 files changed, 0 insertions, 142 deletions
diff --git a/avl-1.4.0/thread-test.c b/avl-1.4.0/thread-test.c
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--- a/avl-1.4.0/thread-test.c
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-/* libavl - manipulates AVL trees.
- Copyright (C) 1998, 1999 Free Software Foundation, Inc.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA.
-
- The author may be contacted at <pfaffben@pilot.msu.edu> on the
- Internet, or as Ben Pfaff, 12167 Airport Rd, DeWitt MI 48820, USA
- through more mundane means. */
-
-/* This is file thread-test.c in libavl. */
-
-#if HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <time.h>
-#include "avl.h"
-#include "avlt.h"
-#include "avltr.h"
-
-#if __GNUC__ >= 2
-#define unused __attribute__ ((unused))
-#else
-#define unused
-#endif
-
-/* Compare two integers A and B and return a strcmp()-type result. */
-int
-compare_ints (const void *a, const void *b, void unused *param)
-{
- return ((int) a) - ((int) b);
-}
-
-/* Arrange the N elements of ARRAY in random order. */
-void
-shuffle (int *array, int n)
-{
- int i;
-
- for (i = 0; i < n; i++)
- {
- int j = i + rand () % (n - i);
- int t = array[j];
- array[j] = array[i];
- array[i] = t;
- }
-}
-
-
-/* Simple stress test procedure for the AVL tree threading/unthreading
- routines. */
-#define TREE_SIZE 1024
-#define N_ITERATIONS 16
-int
-main (int argc, char **argv)
-{
- int array[TREE_SIZE];
- int seed;
- int iteration;
-
- if (argc == 2)
- seed = atoi (argv[1]);
- else
- seed = time (0) * 257 % 32768;
-
- fputs ("Testing threading and unthreading...\n", stdout);
- for (iteration = 1; iteration <= N_ITERATIONS; iteration++)
- {
- avl_tree *tree;
- avl_traverser trav = AVL_TRAVERSER_INIT;
- void **nodep = NULL;
- void *node;
- int i;
-
- printf ("Iteration %4d/%4d: seed=%5d", iteration, N_ITERATIONS, seed);
- fflush (stdout);
-
- srand (seed++);
-
- for (i = 0; i < TREE_SIZE; i++)
- array[i] = i + 1;
- shuffle (array, TREE_SIZE);
-
- tree = avl_create (compare_ints, NULL);
- for (i = 0; i < TREE_SIZE; i++)
- avl_force_insert (tree, (void *) (array[i]));
-
- shuffle (array, TREE_SIZE);
- for (i = 0; i < TREE_SIZE; i++)
- {
- avlt_tree *t;
- avltr_tree *tr;
-
- avl_delete (tree, (void *) (array[i]));
-
- while ((node = avl_traverse (tree, &trav)) != NULL);
-
- t = avlt_thread (tree);
- while ((nodep = avlt_next (t, nodep)) != NULL);
- while ((nodep = avlt_prev (t, nodep)) != NULL);
- avlt_unthread (t);
-
- tr = avltr_thread (tree);
- while ((nodep = avltr_next (tr, nodep)) != NULL);
- avltr_unthread (tr);
-
- while ((node = avl_traverse (tree, &trav)) != NULL);
-
- if (i % 128 == 0)
- {
- putchar ('.');
- fflush (stdout);
- }
- }
- fputs (" good.\n", stdout);
-
- avl_destroy (tree, NULL);
- }
-
- return 0;
-}
-
-/*
- Local variables:
- compile-command: "gcc -W -Wall -I. -o ./thread-test thread-test.c avl.c avlt.c avltr.c"
- End:
-*/