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    Contents of /trunk/mkinitrd-magellan/busybox/procps/free.c

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    Revision 984 - (show annotations) (download)
    Sun May 30 11:32:42 2010 UTC (13 years, 11 months ago) by niro
    File MIME type: text/plain
    File size: 1822 byte(s) 
    -updated to busybox-1.16.1 and enabled blkid/uuid support in default config
    1 /* vi: set sw=4 ts=4: */
    2 /*
    3 * Mini free implementation for busybox
    4 *
    5 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
    6 *
    7 * Licensed under the GPL version 2, see the file LICENSE in this tarball.
    8 */
    9
    10 /* getopt not needed */
    11
    12 #include "libbb.h"
    13
    14 int free_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
    15 int free_main(int argc UNUSED_PARAM, char **argv)
    16 {
    17 struct sysinfo info;
    18 sysinfo(&info);
    19
    20 /* Kernels prior to 2.4.x will return info.mem_unit==0, so cope... */
    21 if (info.mem_unit == 0) {
    22 info.mem_unit=1;
    23 }
    24 if (info.mem_unit == 1) {
    25 info.mem_unit=1024;
    26
    27 /* TODO: Make all this stuff not overflow when mem >= 4 Gib */
    28 info.totalram/=info.mem_unit;
    29 info.freeram/=info.mem_unit;
    30 #ifndef __uClinux__
    31 info.totalswap/=info.mem_unit;
    32 info.freeswap/=info.mem_unit;
    33 #endif
    34 info.sharedram/=info.mem_unit;
    35 info.bufferram/=info.mem_unit;
    36 } else {
    37 info.mem_unit/=1024;
    38 /* TODO: Make all this stuff not overflow when mem >= 4 Gib */
    39 info.totalram*=info.mem_unit;
    40 info.freeram*=info.mem_unit;
    41 #ifndef __uClinux__
    42 info.totalswap*=info.mem_unit;
    43 info.freeswap*=info.mem_unit;
    44 #endif
    45 info.sharedram*=info.mem_unit;
    46 info.bufferram*=info.mem_unit;
    47 }
    48
    49 if (argv[1] && argv[1][0] == '-')
    50 bb_show_usage();
    51
    52 printf("%6s%13s%13s%13s%13s%13s\n", "", "total", "used", "free",
    53 "shared", "buffers");
    54
    55 printf("%6s%13ld%13ld%13ld%13ld%13ld\n", "Mem:", info.totalram,
    56 info.totalram-info.freeram, info.freeram,
    57 info.sharedram, info.bufferram);
    58
    59 #ifndef __uClinux__
    60 printf("%6s%13ld%13ld%13ld\n", "Swap:", info.totalswap,
    61 info.totalswap-info.freeswap, info.freeswap);
    62
    63 printf("%6s%13ld%13ld%13ld\n", "Total:", info.totalram+info.totalswap,
    64 (info.totalram-info.freeram)+(info.totalswap-info.freeswap),
    65 info.freeram+info.freeswap);
    66 #endif
    67 return EXIT_SUCCESS;
    68 }