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

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    Revision 816 - (hide annotations) (download)
    Fri Apr 24 18:33:46 2009 UTC (15 years ago) by niro
    File MIME type: text/plain
    File size: 1808 byte(s) 
    -updated to busybox-1.13.4
    1 niro 532 /* 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 niro 816 #include "libbb.h"
    13 niro 532
    14 niro 816 int free_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
    15 niro 532 int free_main(int argc, 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 niro 816 if (info.mem_unit == 0) {
    22 niro 532 info.mem_unit=1;
    23     }
    24 niro 816 if (info.mem_unit == 1) {
    25 niro 532 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 niro 816 if (argc > 1 && *argv[1] == '-')
    50 niro 532 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     }