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author | Denys Vlasenko <vda.linux@googlemail.com> | 2017-04-12 13:58:40 +0200 |
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committer | Denys Vlasenko <vda.linux@googlemail.com> | 2017-04-12 13:58:40 +0200 |
commit | 783d57af7bb2b851c16cf87df848e0365e5052da (patch) | |
tree | 71bb23e51b9cb40eac4a6fb831383134c1fc45a0 /miscutils/ionice.c | |
parent | ac47a00e2ec398b04c3141cd3434a6e4b95740b1 (diff) | |
download | busybox-w32-783d57af7bb2b851c16cf87df848e0365e5052da.tar.gz busybox-w32-783d57af7bb2b851c16cf87df848e0365e5052da.tar.bz2 busybox-w32-783d57af7bb2b851c16cf87df848e0365e5052da.zip |
Sort some miscutils/ applets into coreutils or util-linux
No code changes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'miscutils/ionice.c')
-rw-r--r-- | miscutils/ionice.c | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/miscutils/ionice.c b/miscutils/ionice.c deleted file mode 100644 index c54b3a6e1..000000000 --- a/miscutils/ionice.c +++ /dev/null | |||
@@ -1,115 +0,0 @@ | |||
1 | /* vi: set sw=4 ts=4: */ | ||
2 | /* | ||
3 | * ionice implementation for busybox based on linux-utils-ng 2.14 | ||
4 | * | ||
5 | * Copyright (C) 2008 by <u173034@informatik.uni-oldenburg.de> | ||
6 | * | ||
7 | * Licensed under GPLv2 or later, see file LICENSE in this source tree. | ||
8 | */ | ||
9 | //config:config IONICE | ||
10 | //config: bool "ionice" | ||
11 | //config: default y | ||
12 | //config: select PLATFORM_LINUX | ||
13 | //config: help | ||
14 | //config: Set/set program io scheduling class and priority | ||
15 | //config: Requires kernel >= 2.6.13 | ||
16 | |||
17 | //applet:IF_IONICE(APPLET(ionice, BB_DIR_BIN, BB_SUID_DROP)) | ||
18 | |||
19 | //kbuild:lib-$(CONFIG_IONICE) += ionice.o | ||
20 | |||
21 | //usage:#define ionice_trivial_usage | ||
22 | //usage: "[-c 1-3] [-n 0-7] [-p PID] [PROG]" | ||
23 | //usage:#define ionice_full_usage "\n\n" | ||
24 | //usage: "Change I/O priority and class\n" | ||
25 | //usage: "\n -c Class. 1:realtime 2:best-effort 3:idle" | ||
26 | //usage: "\n -n Priority" | ||
27 | |||
28 | #include <sys/syscall.h> | ||
29 | #include <asm/unistd.h> | ||
30 | #include "libbb.h" | ||
31 | |||
32 | static int ioprio_set(int which, int who, int ioprio) | ||
33 | { | ||
34 | return syscall(SYS_ioprio_set, which, who, ioprio); | ||
35 | } | ||
36 | |||
37 | static int ioprio_get(int which, int who) | ||
38 | { | ||
39 | return syscall(SYS_ioprio_get, which, who); | ||
40 | } | ||
41 | |||
42 | enum { | ||
43 | IOPRIO_WHO_PROCESS = 1, | ||
44 | IOPRIO_WHO_PGRP, | ||
45 | IOPRIO_WHO_USER | ||
46 | }; | ||
47 | |||
48 | enum { | ||
49 | IOPRIO_CLASS_NONE, | ||
50 | IOPRIO_CLASS_RT, | ||
51 | IOPRIO_CLASS_BE, | ||
52 | IOPRIO_CLASS_IDLE | ||
53 | }; | ||
54 | |||
55 | static const char to_prio[] ALIGN1 = "none\0realtime\0best-effort\0idle"; | ||
56 | |||
57 | #define IOPRIO_CLASS_SHIFT 13 | ||
58 | |||
59 | int ionice_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; | ||
60 | int ionice_main(int argc UNUSED_PARAM, char **argv) | ||
61 | { | ||
62 | /* Defaults */ | ||
63 | int ioclass = 0; | ||
64 | int pri = 0; | ||
65 | int pid = 0; /* affect own porcess */ | ||
66 | int opt; | ||
67 | enum { | ||
68 | OPT_n = 1, | ||
69 | OPT_c = 2, | ||
70 | OPT_p = 4, | ||
71 | }; | ||
72 | |||
73 | /* Numeric params */ | ||
74 | /* '+': stop at first non-option */ | ||
75 | opt = getopt32(argv, "+n:+c:+p:+", &pri, &ioclass, &pid); | ||
76 | argv += optind; | ||
77 | |||
78 | if (opt & OPT_c) { | ||
79 | if (ioclass > 3) | ||
80 | bb_error_msg_and_die("bad class %d", ioclass); | ||
81 | // Do we need this (compat?)? | ||
82 | // if (ioclass == IOPRIO_CLASS_NONE) | ||
83 | // ioclass = IOPRIO_CLASS_BE; | ||
84 | // if (ioclass == IOPRIO_CLASS_IDLE) { | ||
85 | // //if (opt & OPT_n) | ||
86 | // // bb_error_msg("ignoring priority for idle class"); | ||
87 | // pri = 7; | ||
88 | // } | ||
89 | } | ||
90 | |||
91 | if (!(opt & (OPT_n|OPT_c))) { | ||
92 | if (!(opt & OPT_p) && *argv) | ||
93 | pid = xatoi_positive(*argv); | ||
94 | |||
95 | pri = ioprio_get(IOPRIO_WHO_PROCESS, pid); | ||
96 | if (pri == -1) | ||
97 | bb_perror_msg_and_die("ioprio_%cet", 'g'); | ||
98 | |||
99 | ioclass = (pri >> IOPRIO_CLASS_SHIFT) & 0x3; | ||
100 | pri &= 0xff; | ||
101 | printf((ioclass == IOPRIO_CLASS_IDLE) ? "%s\n" : "%s: prio %d\n", | ||
102 | nth_string(to_prio, ioclass), pri); | ||
103 | } else { | ||
104 | //printf("pri=%d class=%d val=%x\n", | ||
105 | //pri, ioclass, pri | (ioclass << IOPRIO_CLASS_SHIFT)); | ||
106 | pri |= (ioclass << IOPRIO_CLASS_SHIFT); | ||
107 | if (ioprio_set(IOPRIO_WHO_PROCESS, pid, pri) == -1) | ||
108 | bb_perror_msg_and_die("ioprio_%cet", 's'); | ||
109 | if (argv[0]) { | ||
110 | BB_EXECVP_or_die(argv); | ||
111 | } | ||
112 | } | ||
113 | |||
114 | return EXIT_SUCCESS; | ||
115 | } | ||