1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright 1998-2003 Sun Microsystems, Inc. All rights reserved.
24*0Sstevel@tonic-gate * Use is subject to license terms.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate #include <stdio.h>
30*0Sstevel@tonic-gate #include "mtmalloc.h"
31*0Sstevel@tonic-gate #include <unistd.h>
32*0Sstevel@tonic-gate #include <thread.h>
33*0Sstevel@tonic-gate #include <sys/types.h>
34*0Sstevel@tonic-gate #include <sys/mman.h>
35*0Sstevel@tonic-gate #include <fcntl.h>
36*0Sstevel@tonic-gate #include <errno.h>
37*0Sstevel@tonic-gate
38*0Sstevel@tonic-gate /*
39*0Sstevel@tonic-gate * This file tests for swap space exhaustion
40*0Sstevel@tonic-gate *
41*0Sstevel@tonic-gate * cc -O -o exhaust exhaust.c -lmtmalloc
42*0Sstevel@tonic-gate */
43*0Sstevel@tonic-gate
44*0Sstevel@tonic-gate void * be_thread(void *);
45*0Sstevel@tonic-gate int iwin = 0;
46*0Sstevel@tonic-gate
main(int argc,char ** argv)47*0Sstevel@tonic-gate main(int argc, char ** argv)
48*0Sstevel@tonic-gate {
49*0Sstevel@tonic-gate int ncpus;
50*0Sstevel@tonic-gate thread_t tid[512];
51*0Sstevel@tonic-gate int fd;
52*0Sstevel@tonic-gate caddr_t stacks[512];
53*0Sstevel@tonic-gate
54*0Sstevel@tonic-gate srand(getpid());
55*0Sstevel@tonic-gate ncpus = sysconf(_SC_NPROCESSORS_CONF);
56*0Sstevel@tonic-gate
57*0Sstevel@tonic-gate fd = open("/dev/zero", O_RDONLY);
58*0Sstevel@tonic-gate
59*0Sstevel@tonic-gate if (fd < 0) {
60*0Sstevel@tonic-gate perror("open");
61*0Sstevel@tonic-gate exit(-1);
62*0Sstevel@tonic-gate }
63*0Sstevel@tonic-gate
64*0Sstevel@tonic-gate while (ncpus--)
65*0Sstevel@tonic-gate stacks[ncpus] = mmap(0, 1<<23, PROT_READ|PROT_WRITE,
66*0Sstevel@tonic-gate MAP_PRIVATE, fd, 0);
67*0Sstevel@tonic-gate
68*0Sstevel@tonic-gate close(fd);
69*0Sstevel@tonic-gate
70*0Sstevel@tonic-gate mallocctl(MTCHUNKSIZE, 150);
71*0Sstevel@tonic-gate
72*0Sstevel@tonic-gate ncpus = sysconf(_SC_NPROCESSORS_CONF);
73*0Sstevel@tonic-gate while (ncpus--)
74*0Sstevel@tonic-gate thr_create(stacks[ncpus], 1<<23, be_thread, NULL, THR_BOUND,
75*0Sstevel@tonic-gate &tid[ncpus]);
76*0Sstevel@tonic-gate
77*0Sstevel@tonic-gate while (thr_join(NULL, NULL, NULL) == 0);
78*0Sstevel@tonic-gate
79*0Sstevel@tonic-gate exit(0);
80*0Sstevel@tonic-gate }
81*0Sstevel@tonic-gate
82*0Sstevel@tonic-gate /* ARGSUSED */
83*0Sstevel@tonic-gate void *
be_thread(void * foo)84*0Sstevel@tonic-gate be_thread(void *foo)
85*0Sstevel@tonic-gate {
86*0Sstevel@tonic-gate char *p;
87*0Sstevel@tonic-gate
88*0Sstevel@tonic-gate if (iwin) {
89*0Sstevel@tonic-gate printf("why am I here\n");
90*0Sstevel@tonic-gate return;
91*0Sstevel@tonic-gate }
92*0Sstevel@tonic-gate
93*0Sstevel@tonic-gate if ((p = malloc(rand())) == NULL) {
94*0Sstevel@tonic-gate iwin = 1;
95*0Sstevel@tonic-gate fprintf(stderr, "Errno is %d\n", errno);
96*0Sstevel@tonic-gate perror("malloc");
97*0Sstevel@tonic-gate } else {
98*0Sstevel@tonic-gate be_thread(NULL);
99*0Sstevel@tonic-gate printf("free %p\n", p);
100*0Sstevel@tonic-gate free(p);
101*0Sstevel@tonic-gate }
102*0Sstevel@tonic-gate
103*0Sstevel@tonic-gate }
104