Contents of /tags/mkinitrd-6_1_10/busybox/procps/free.c
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Wed Oct 28 09:51:31 2009 UTC (14 years, 11 months ago) by niro
File MIME type: text/plain
File size: 1808 byte(s)
Wed Oct 28 09:51:31 2009 UTC (14 years, 11 months ago) by niro
File MIME type: text/plain
File size: 1808 byte(s)
tagged 'mkinitrd-6_1_10'
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, 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 (argc > 1 && *argv[1] == '-') |
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 | } |