wok-current annotate busybox/stuff/busybox-1.12.0-ionice.u @ rev 5657

Up: libogg (1.2.0)
author Alexander Medvedev <devl547@gmail.com>
date Sun May 30 02:45:16 2010 +0000 (2010-05-30)
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pascal@3613 1 --- busybox-1.12.0/include/applets.h 2008-12-16 22:32:03.000000000 +0100
pascal@3613 2 +++ busybox-1.12.0/include/applets.h 2008-12-16 22:34:06.000000000 +0100
pascal@3613 3 @@ -191,6 +191,7 @@
pascal@3613 4 USE_INSMOD(APPLET(insmod, _BB_DIR_SBIN, _BB_SUID_NEVER))
pascal@3613 5 USE_MODPROBE_SMALL(APPLET_ODDNAME(insmod, modprobe, _BB_DIR_SBIN, _BB_SUID_NEVER, modprobe))
pascal@3613 6 USE_INSTALL(APPLET(install, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
pascal@3613 7 +USE_IONICE(APPLET(ionice, _BB_DIR_BIN, _BB_SUID_NEVER))
pascal@3613 8 #if ENABLE_FEATURE_IP_ADDRESS \
pascal@3613 9 || ENABLE_FEATURE_IP_ROUTE \
pascal@3613 10 || ENABLE_FEATURE_IP_LINK \
pascal@3613 11
pascal@3613 12
pascal@3613 13 --- busybox-1.12.0/miscutils/Config.in 2008-12-14 23:41:16.000000000 +0100
pascal@3613 14 +++ busybox-1.12.0/miscutils/Config.in 2008-12-14 23:27:56.000000000 +0100
pascal@3613 15 @@ -223,6 +223,13 @@
pascal@3613 16 "NN" (ASCII decimal number) - percentage to show on progress bar
pascal@3613 17 "exit" - well you guessed it
pascal@3613 18
pascal@3613 19 +config IONICE
pascal@3613 20 + bool "ionice"
pascal@3613 21 + default n
pascal@3613 22 + help
pascal@3613 23 + get/set program io scheduling class and priority
pascal@3613 24 + Requires kernel >= 2.6.13
pascal@3613 25 +
pascal@3613 26 config INOTIFYD
pascal@3613 27 bool "inotifyd"
pascal@3613 28 default n
pascal@3613 29
pascal@3613 30 --- busybox-1.12.0/miscutils/Kbuild 2008-12-14 23:22:52.000000000 +0100
pascal@3613 31 +++ busybox-1.12.0/miscutils/Kbuild 2008-12-14 23:22:27.000000000 +0100
pascal@3613 32 @@ -16,4 +16,5 @@
pascal@3613 33 lib-$(CONFIG_EJECT) += eject.o
pascal@3613 34 lib-$(CONFIG_FBSPLASH) += fbsplash.o
pascal@3613 35 +lib-$(CONFIG_IONICE) += ionice.o
pascal@3613 36 lib-$(CONFIG_HDPARM) += hdparm.o
pascal@3613 37 lib-$(CONFIG_INOTIFYD) += inotifyd.o
pascal@3613 38
pascal@3613 39 --- busybox-1.12.0/include/usage.h 2008-12-16 22:31:43.000000000 +0100
pascal@3613 40 +++ busybox-1.12.0/include/usage.h 2008-12-16 22:32:14.000000000 +0100
pascal@3613 41 @@ -1884,6 +1884,16 @@
pascal@3613 42 USE_SELINUX( \
pascal@3613 43 "\n -Z Set security context of copy" \
pascal@3613 44 )
pascal@3613 45 +
pascal@3613 46 +#define ionice_trivial_usage \
pascal@3613 47 + "[-c 1-3] [-n 0-7] [-p PID] [COMMAND [ARG...]]"
pascal@3613 48 +#define ionice_full_usage "\n\n" \
pascal@3613 49 + "change io scheduling class and priority\n" \
pascal@3613 50 + "\nOptions:" \
pascal@3613 51 + "\n -c scheduling class. 1=real time 2=best-effort, 3=idle" \
pascal@3613 52 + "\n -n Priority " \
pascal@3613 53 + "\n -p process pid "
pascal@3613 54 +
pascal@3613 55
pascal@3613 56 /* would need to make the " | " optional depending on more than one selected: */
pascal@3613 57 #define ip_trivial_usage \
pascal@3613 58
pascal@3613 59 diff --git busybox-1.12.0/miscutils/ionice.c busybox-1.12.0/miscutils/ionice.c
pascal@3613 60 new file mode 100644
pascal@3613 61 index 0000000..88d771c
pascal@3613 62 --- busybox-1.12.0/dev/null
pascal@3613 63 +++ busybox-1.12.0/miscutils/ionice.c
pascal@3613 64 @@ -0,0 +1,99 @@
pascal@3613 65 +/* vi: set sw=4 ts=4: */
pascal@3613 66 +/*
pascal@3613 67 + * ionice implementation for busybox based on linux-utils-ng 2.14
pascal@3613 68 + *
pascal@3613 69 + * Copyright (C) 2008 by <u173034@informatik.uni-oldenburg.de>
pascal@3613 70 + *
pascal@3613 71 + * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
pascal@3613 72 + */
pascal@3613 73 +
pascal@3613 74 +#include <sys/syscall.h>
pascal@3613 75 +#include <asm/unistd.h>
pascal@3613 76 +#include "libbb.h"
pascal@3613 77 +
pascal@3613 78 +static int ioprio_set(int which, int who, int ioprio)
pascal@3613 79 +{
pascal@3613 80 + return syscall(SYS_ioprio_set, which, who, ioprio);
pascal@3613 81 +}
pascal@3613 82 +
pascal@3613 83 +static int ioprio_get(int which, int who)
pascal@3613 84 +{
pascal@3613 85 + return syscall(SYS_ioprio_get, which, who);
pascal@3613 86 +}
pascal@3613 87 +
pascal@3613 88 +enum {
pascal@3613 89 + IOPRIO_WHO_PROCESS = 1,
pascal@3613 90 + IOPRIO_WHO_PGRP,
pascal@3613 91 + IOPRIO_WHO_USER
pascal@3613 92 +};
pascal@3613 93 +
pascal@3613 94 +enum {
pascal@3613 95 + IOPRIO_CLASS_NONE,
pascal@3613 96 + IOPRIO_CLASS_RT,
pascal@3613 97 + IOPRIO_CLASS_BE,
pascal@3613 98 + IOPRIO_CLASS_IDLE
pascal@3613 99 +};
pascal@3613 100 +
pascal@3613 101 +static const char to_prio[] = "none\0realtime\0best-effort\0idle";
pascal@3613 102 +
pascal@3613 103 +#define IOPRIO_CLASS_SHIFT 13
pascal@3613 104 +
pascal@3613 105 +int ionice_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
pascal@3613 106 +int ionice_main(int argc UNUSED_PARAM, char **argv)
pascal@3613 107 +{
pascal@3613 108 + /* Defaults */
pascal@3613 109 + int ioclass = 0;
pascal@3613 110 + int pri = 0;
pascal@3613 111 + int pid = 0; /* affect own porcess */
pascal@3613 112 + int opt;
pascal@3613 113 + enum {
pascal@3613 114 + OPT_n = 1,
pascal@3613 115 + OPT_c = 2,
pascal@3613 116 + OPT_p = 4,
pascal@3613 117 + };
pascal@3613 118 +
pascal@3613 119 + /* Numeric params */
pascal@3613 120 + opt_complementary = "n+:c+:p+";
pascal@3613 121 + /* '+': stop at first non-option */
pascal@3613 122 + opt = getopt32(argv, "+n:c:p:", &pri, &ioclass, &pid);
pascal@3613 123 + argv += optind;
pascal@3613 124 +
pascal@3613 125 + if (opt & OPT_c) {
pascal@3613 126 + if (ioclass > 3)
pascal@3613 127 + bb_error_msg_and_die("bad class %d", ioclass);
pascal@3613 128 +// Do we need this (compat?)?
pascal@3613 129 +// if (ioclass == IOPRIO_CLASS_NONE)
pascal@3613 130 +// ioclass = IOPRIO_CLASS_BE;
pascal@3613 131 +// if (ioclass == IOPRIO_CLASS_IDLE) {
pascal@3613 132 +// //if (opt & OPT_n)
pascal@3613 133 +// // bb_error_msg("ignoring priority for idle class");
pascal@3613 134 +// pri = 7;
pascal@3613 135 +// }
pascal@3613 136 + }
pascal@3613 137 +
pascal@3613 138 + if (!(opt & (OPT_n|OPT_c))) {
pascal@3613 139 + if (!(opt & OPT_p) && *argv)
pascal@3613 140 + pid = xatoi_u(*argv);
pascal@3613 141 +
pascal@3613 142 + pri = ioprio_get(IOPRIO_WHO_PROCESS, pid);
pascal@3613 143 + if (pri == -1)
pascal@3613 144 + bb_perror_msg_and_die("ioprio_%cet", 'g');
pascal@3613 145 +
pascal@3613 146 + ioclass = (pri >> IOPRIO_CLASS_SHIFT) & 0x3;
pascal@3613 147 + pri &= 0xff;
pascal@3613 148 + printf((ioclass == IOPRIO_CLASS_IDLE) ? "%s\n" : "%s: prio %d\n",
pascal@3613 149 + nth_string(to_prio, ioclass), pri);
pascal@3613 150 + } else {
pascal@3613 151 +//printf("pri=%d class=%d val=%x\n",
pascal@3613 152 +//pri, ioclass, pri | (ioclass << IOPRIO_CLASS_SHIFT));
pascal@3613 153 + pri |= (ioclass << IOPRIO_CLASS_SHIFT);
pascal@3613 154 + if (ioprio_set(IOPRIO_WHO_PROCESS, pid, pri) == -1)
pascal@3613 155 + bb_perror_msg_and_die("ioprio_%cet", 's');
pascal@3613 156 + if (*argv) {
pascal@3613 157 + BB_EXECVP(*argv, argv);
pascal@3613 158 + bb_simple_perror_msg_and_die(*argv);
pascal@3613 159 + }
pascal@3613 160 + }
pascal@3613 161 +
pascal@3613 162 + return EXIT_SUCCESS;
pascal@3613 163 +}