1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 1998-2003 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <unistd.h>
32 #include <thread.h>
33 
34 /*
35  * This file contains a general health check for the libmtmalloc.so.1 lib.
36  * It creates NCPUS worth of threads and has eadch perform 1000000 random
37  * small allocs and then free them.
38  *
39  * cc -O -o general general.c -lmtmalloc
40  */
41 #define	N	1000000
42 
43 void *be_thread(void *);
44 
45 main(int argc, char ** argv)
46 {
47 	int i;
48 	thread_t tid[512];	/* We'll never have more than that! hah */
49 
50 	i = sysconf(_SC_NPROCESSORS_CONF);
51 	srand(getpid());
52 
53 	while (i)
54 		thr_create(NULL, 1<<23, be_thread, NULL, THR_BOUND, &tid[i--]);
55 
56 	while (thr_join(NULL, NULL, NULL) == 0);
57 
58 	exit(0);
59 }
60 
61 /* ARGSUSED */
62 void *
63 be_thread(void * foo)
64 {
65 	int i = N;
66 	char *bar[N];
67 
68 	while (i--)
69 		bar[i] = malloc(rand()%64);
70 
71 	i = N;
72 	while (i--)
73 		free(bar[i]);
74 }
75