1 /* $NetBSD: swaplist.c,v 1.9 2000/08/19 21:31:58 soren Exp $ */ 2 3 /* 4 * Copyright (c) 1997 Matthew R. Green 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 23 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 #include <sys/param.h> 32 #include <sys/stat.h> 33 #include <sys/swap.h> 34 35 #include <unistd.h> 36 #include <err.h> 37 #include <errno.h> 38 #include <stdio.h> 39 #include <stdlib.h> 40 #include <string.h> 41 #include <inttypes.h> 42 43 #define dbtoqb(b) dbtob((int64_t)(b)) 44 45 /* 46 * NOTE: This file is separate from swapctl.c so that pstat can grab it. 47 */ 48 49 #include "swapctl.h" 50 51 void 52 list_swap(pri, kflag, pflag, tflag, dolong) 53 int pri; 54 int kflag; 55 int pflag; 56 int tflag; 57 int dolong; 58 { 59 struct swapent *sep, *fsep; 60 long blocksize; 61 char *header; 62 size_t l; 63 int hlen, totalsize, size, totalinuse, inuse, ncounted, pathmax; 64 int rnswap, nswap = swapctl(SWAP_NSWAP, 0, 0), i; 65 66 if (nswap < 1) { 67 puts("no swap devices configured"); 68 exit(0); 69 } 70 71 fsep = sep = (struct swapent *)malloc(nswap * sizeof(*sep)); 72 if (sep == NULL) 73 err(1, "malloc"); 74 rnswap = swapctl(SWAP_STATS, (void *)sep, nswap); 75 if (rnswap < 0) 76 err(1, "SWAP_STATS"); 77 if (nswap != rnswap) 78 warnx("SWAP_STATS different to SWAP_NSWAP (%d != %d)", 79 rnswap, nswap); 80 81 pathmax = 11; 82 if (dolong && tflag == 0) { 83 if (kflag) { 84 header = "1K-blocks"; 85 blocksize = 1024; 86 hlen = strlen(header); 87 } else 88 header = getbsize(&hlen, &blocksize); 89 for (i = rnswap; i-- > 0; sep++) 90 if (pathmax < (l = strlen(sep->se_path))) 91 pathmax = l; 92 sep = fsep; 93 (void)printf("%-*s %*s %8s %8s %8s %s\n", 94 pathmax, "Device", hlen, header, 95 "Used", "Avail", "Capacity", "Priority"); 96 } 97 totalsize = totalinuse = ncounted = 0; 98 for (; rnswap-- > 0; sep++) { 99 if (pflag && sep->se_priority != pri) 100 continue; 101 ncounted++; 102 size = sep->se_nblks; 103 inuse = sep->se_inuse; 104 totalsize += size; 105 totalinuse += inuse; 106 107 if (dolong && tflag == 0) { 108 (void)printf("%-*s %*ld ", pathmax, sep->se_path, hlen, 109 (long)(dbtoqb(size) / blocksize)); 110 111 (void)printf("%8ld %8ld %5.0f%% %d\n", 112 (long)(dbtoqb(inuse) / blocksize), 113 (long)(dbtoqb(size - inuse) / blocksize), 114 (double)inuse / (double)size * 100.0, 115 sep->se_priority); 116 } 117 } 118 if (tflag) 119 (void)printf("%dM/%dM swap space\n", 120 (int)(dbtoqb(totalinuse) / (1024 * 1024)), 121 (int)(dbtoqb(totalsize) / (1024 * 1024))); 122 else if (dolong == 0) 123 printf("total: %ldk bytes allocated = %ldk used, " 124 "%ldk available\n", 125 (long)(dbtoqb(totalsize) / 1024), 126 (long)(dbtoqb(totalinuse) / 1024), 127 (long)(dbtoqb(totalsize - totalinuse) / 1024)); 128 else if (ncounted > 1) 129 (void)printf("%-*s %*ld %8ld %8ld %5.0f%%\n", pathmax, "Total", 130 hlen, 131 (long)(dbtoqb(totalsize) / blocksize), 132 (long)(dbtoqb(totalinuse) / blocksize), 133 (long)(dbtoqb(totalsize - totalinuse) / blocksize), 134 (double)(totalinuse) / (double)totalsize * 100.0); 135 if (fsep) 136 (void)free(fsep); 137 } 138