131 lines
4.1 KiB
C
131 lines
4.1 KiB
C
/* $NetBSD: swaplist.c,v 1.2 1997/06/25 07:44:12 mikel Exp $ */
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/*
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* Copyright (c) 1997 Matthew R. Green
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Matthew R. Green for
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* The NetBSD Foundation.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/stat.h>
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#include <vm/vm_swap.h>
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#include <unistd.h>
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#include <err.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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/*
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* NOTE: This file is separate from swapctl.c so that pstat can grab it.
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*/
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#include "swapctl.h"
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void
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list_swap(pri, kflag, pflag, tflag, dolong)
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int pri;
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int kflag;
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int pflag;
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int tflag;
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int dolong;
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{
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struct swapent *sep;
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long blocksize;
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char *header;
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int hlen, totalsize, size, totalinuse, inuse, ncounted;
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int rnswap, nswap = swapctl(SWAP_NSWAP, 0, 0);
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if (nswap < 1) {
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puts("no swap devices configured");
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exit(0);
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}
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sep = (struct swapent *)malloc(nswap * sizeof(*sep));
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if (sep == NULL)
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err(1, "malloc");
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rnswap = swapctl(SWAP_STATS, (void *)sep, nswap);
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if (nswap < 0)
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errx(1, "SWAP_STATS");
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if (nswap != rnswap)
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warnx("SWAP_STATS gave different value than SWAP_NSWAP");
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if (dolong && tflag == 0) {
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if (kflag) {
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header = "1K-blocks";
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blocksize = 1024;
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hlen = strlen(header);
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} else
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header = getbsize(&hlen, &blocksize);
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(void)printf("%-11s %*s %8s %8s %8s %s\n",
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"Device", hlen, header,
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"Used", "Avail", "Capacity", "Priority");
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}
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totalsize = totalinuse = ncounted = 0;
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for (; rnswap-- > 0; sep++) {
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if (pflag && sep->se_priority != pri)
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continue;
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ncounted++;
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size = sep->se_nblks;
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inuse = sep->se_inuse;
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totalsize += size;
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totalinuse += inuse;
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if (dolong && tflag == 0) {
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/* XXX handle se_dev == NODEV */
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(void)printf("/dev/%-6s %*ld ",
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devname(sep->se_dev, S_IFBLK),
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hlen, dbtob(size) / blocksize);
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(void)printf("%8ld %8ld %5.0f%% %d\n",
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dbtob(inuse) / blocksize,
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dbtob(size - inuse) / blocksize,
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(double)inuse / (double)size * 100.0,
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sep->se_priority);
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}
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}
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if (tflag)
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(void)printf("%dM/%dM swap space\n",
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dbtob(totalinuse) / (1024 * 1024),
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dbtob(totalsize) / (1024 * 1024));
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else if (dolong == 0)
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(void)printf("total: %dk bytes allocated = %dk used, %dk available\n",
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dbtob(totalsize) / 1024,
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dbtob(totalinuse) / 1024,
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dbtob(totalsize - totalinuse) / 1024);
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else if (ncounted > 1)
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(void)printf("%-11s %*ld %8ld %8ld %5.0f%%\n", "Total", hlen,
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dbtob(totalsize) / blocksize,
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dbtob(totalinuse) / blocksize,
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dbtob(totalsize - totalinuse) / blocksize,
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(double)(totalinuse) / (double)totalsize * 100.0);
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}
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