1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate *
4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate * with the License.
8*7c478bd9Sstevel@tonic-gate *
9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate *
14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate *
20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate * Copyright 1998-2003 Sun Microsystems, Inc. All rights reserved.
24*7c478bd9Sstevel@tonic-gate * Use is subject to license terms.
25*7c478bd9Sstevel@tonic-gate */
26*7c478bd9Sstevel@tonic-gate
27*7c478bd9Sstevel@tonic-gate #include <stdio.h>
28*7c478bd9Sstevel@tonic-gate #include "mtmalloc.h"
29*7c478bd9Sstevel@tonic-gate #include <unistd.h>
30*7c478bd9Sstevel@tonic-gate #include <thread.h>
31*7c478bd9Sstevel@tonic-gate #include <sys/types.h>
32*7c478bd9Sstevel@tonic-gate #include <sys/mman.h>
33*7c478bd9Sstevel@tonic-gate #include <fcntl.h>
34*7c478bd9Sstevel@tonic-gate #include <errno.h>
35*7c478bd9Sstevel@tonic-gate
36*7c478bd9Sstevel@tonic-gate /*
37*7c478bd9Sstevel@tonic-gate * This file tests for swap space exhaustion
38*7c478bd9Sstevel@tonic-gate *
39*7c478bd9Sstevel@tonic-gate * cc -O -o exhaust exhaust.c -lmtmalloc
40*7c478bd9Sstevel@tonic-gate */
41*7c478bd9Sstevel@tonic-gate
42*7c478bd9Sstevel@tonic-gate void * be_thread(void *);
43*7c478bd9Sstevel@tonic-gate int iwin = 0;
44*7c478bd9Sstevel@tonic-gate
main(int argc,char ** argv)45*7c478bd9Sstevel@tonic-gate main(int argc, char ** argv)
46*7c478bd9Sstevel@tonic-gate {
47*7c478bd9Sstevel@tonic-gate int ncpus;
48*7c478bd9Sstevel@tonic-gate thread_t tid[512];
49*7c478bd9Sstevel@tonic-gate int fd;
50*7c478bd9Sstevel@tonic-gate caddr_t stacks[512];
51*7c478bd9Sstevel@tonic-gate
52*7c478bd9Sstevel@tonic-gate srand(getpid());
53*7c478bd9Sstevel@tonic-gate ncpus = sysconf(_SC_NPROCESSORS_CONF);
54*7c478bd9Sstevel@tonic-gate
55*7c478bd9Sstevel@tonic-gate fd = open("/dev/zero", O_RDONLY);
56*7c478bd9Sstevel@tonic-gate
57*7c478bd9Sstevel@tonic-gate if (fd < 0) {
58*7c478bd9Sstevel@tonic-gate perror("open");
59*7c478bd9Sstevel@tonic-gate exit(-1);
60*7c478bd9Sstevel@tonic-gate }
61*7c478bd9Sstevel@tonic-gate
62*7c478bd9Sstevel@tonic-gate while (ncpus--)
63*7c478bd9Sstevel@tonic-gate stacks[ncpus] = mmap(0, 1<<23, PROT_READ|PROT_WRITE,
64*7c478bd9Sstevel@tonic-gate MAP_PRIVATE, fd, 0);
65*7c478bd9Sstevel@tonic-gate
66*7c478bd9Sstevel@tonic-gate close(fd);
67*7c478bd9Sstevel@tonic-gate
68*7c478bd9Sstevel@tonic-gate mallocctl(MTCHUNKSIZE, 150);
69*7c478bd9Sstevel@tonic-gate
70*7c478bd9Sstevel@tonic-gate ncpus = sysconf(_SC_NPROCESSORS_CONF);
71*7c478bd9Sstevel@tonic-gate while (ncpus--)
72*7c478bd9Sstevel@tonic-gate thr_create(stacks[ncpus], 1<<23, be_thread, NULL, THR_BOUND,
73*7c478bd9Sstevel@tonic-gate &tid[ncpus]);
74*7c478bd9Sstevel@tonic-gate
75*7c478bd9Sstevel@tonic-gate while (thr_join(NULL, NULL, NULL) == 0);
76*7c478bd9Sstevel@tonic-gate
77*7c478bd9Sstevel@tonic-gate exit(0);
78*7c478bd9Sstevel@tonic-gate }
79*7c478bd9Sstevel@tonic-gate
80*7c478bd9Sstevel@tonic-gate /* ARGSUSED */
81*7c478bd9Sstevel@tonic-gate void *
be_thread(void * foo)82*7c478bd9Sstevel@tonic-gate be_thread(void *foo)
83*7c478bd9Sstevel@tonic-gate {
84*7c478bd9Sstevel@tonic-gate char *p;
85*7c478bd9Sstevel@tonic-gate
86*7c478bd9Sstevel@tonic-gate if (iwin) {
87*7c478bd9Sstevel@tonic-gate printf("why am I here\n");
88*7c478bd9Sstevel@tonic-gate return;
89*7c478bd9Sstevel@tonic-gate }
90*7c478bd9Sstevel@tonic-gate
91*7c478bd9Sstevel@tonic-gate if ((p = malloc(rand())) == NULL) {
92*7c478bd9Sstevel@tonic-gate iwin = 1;
93*7c478bd9Sstevel@tonic-gate fprintf(stderr, "Errno is %d\n", errno);
94*7c478bd9Sstevel@tonic-gate perror("malloc");
95*7c478bd9Sstevel@tonic-gate } else {
96*7c478bd9Sstevel@tonic-gate be_thread(NULL);
97*7c478bd9Sstevel@tonic-gate printf("free %p\n", p);
98*7c478bd9Sstevel@tonic-gate free(p);
99*7c478bd9Sstevel@tonic-gate }
100*7c478bd9Sstevel@tonic-gate
101*7c478bd9Sstevel@tonic-gate }
102