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authorDenys Vlasenko <vda.linux@googlemail.com>2017-04-12 13:58:40 +0200
committerDenys Vlasenko <vda.linux@googlemail.com>2017-04-12 13:58:40 +0200
commit783d57af7bb2b851c16cf87df848e0365e5052da (patch)
tree71bb23e51b9cb40eac4a6fb831383134c1fc45a0 /miscutils/chrt.c
parentac47a00e2ec398b04c3141cd3434a6e4b95740b1 (diff)
downloadbusybox-783d57af7bb2b851c16cf87df848e0365e5052da.tar.gz
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/chrt.c')
-rw-r--r--miscutils/chrt.c149
1 files changed, 0 insertions, 149 deletions
diff --git a/miscutils/chrt.c b/miscutils/chrt.c
deleted file mode 100644
index 1604a6890..000000000
--- a/miscutils/chrt.c
+++ /dev/null
@@ -1,149 +0,0 @@
-/* vi: set sw=4 ts=4: */
-/*
- * chrt - manipulate real-time attributes of a process
- * Copyright (c) 2006-2007 Bernhard Reutner-Fischer
- *
- * Licensed under GPLv2 or later, see file LICENSE in this source tree.
- */
-//config:config CHRT
-//config: bool "chrt"
-//config: default y
-//config: help
-//config: manipulate real-time attributes of a process.
-//config: This requires sched_{g,s}etparam support in your libc.
-
-//applet:IF_CHRT(APPLET(chrt, BB_DIR_USR_BIN, BB_SUID_DROP))
-
-//kbuild:lib-$(CONFIG_CHRT) += chrt.o
-
-//usage:#define chrt_trivial_usage
-//usage: "[-prfom] [PRIO] [PID | PROG ARGS]"
-//usage:#define chrt_full_usage "\n\n"
-//usage: "Change scheduling priority and class for a process\n"
-//usage: "\n -p Operate on PID"
-//usage: "\n -r Set SCHED_RR class"
-//usage: "\n -f Set SCHED_FIFO class"
-//usage: "\n -o Set SCHED_OTHER class"
-//usage: "\n -m Show min/max priorities"
-//usage:
-//usage:#define chrt_example_usage
-//usage: "$ chrt -r 4 sleep 900; x=$!\n"
-//usage: "$ chrt -f -p 3 $x\n"
-//usage: "You need CAP_SYS_NICE privileges to set scheduling attributes of a process"
-
-#include <sched.h>
-#include "libbb.h"
-
-static const struct {
- int policy;
- char name[sizeof("SCHED_OTHER")];
-} policies[] = {
- {SCHED_OTHER, "SCHED_OTHER"},
- {SCHED_FIFO, "SCHED_FIFO"},
- {SCHED_RR, "SCHED_RR"}
-};
-
-//TODO: add
-// -b, SCHED_BATCH
-// -i, SCHED_IDLE
-
-static void show_min_max(int pol)
-{
- const char *fmt = "%s min/max priority\t: %u/%u\n";
- int max, min;
-
- max = sched_get_priority_max(pol);
- min = sched_get_priority_min(pol);
- if ((max|min) < 0)
- fmt = "%s not supported\n";
- printf(fmt, policies[pol].name, min, max);
-}
-
-#define OPT_m (1<<0)
-#define OPT_p (1<<1)
-#define OPT_r (1<<2)
-#define OPT_f (1<<3)
-#define OPT_o (1<<4)
-
-int chrt_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int chrt_main(int argc UNUSED_PARAM, char **argv)
-{
- pid_t pid = 0;
- unsigned opt;
- struct sched_param sp;
- char *pid_str;
- char *priority = priority; /* for compiler */
- const char *current_new;
- int policy = SCHED_RR;
-
- /* only one policy accepted */
- opt_complementary = "r--fo:f--ro:o--rf";
- opt = getopt32(argv, "+mprfo");
- if (opt & OPT_m) { /* print min/max and exit */
- show_min_max(SCHED_FIFO);
- show_min_max(SCHED_RR);
- show_min_max(SCHED_OTHER);
- fflush_stdout_and_exit(EXIT_SUCCESS);
- }
- if (opt & OPT_r)
- policy = SCHED_RR;
- if (opt & OPT_f)
- policy = SCHED_FIFO;
- if (opt & OPT_o)
- policy = SCHED_OTHER;
-
- argv += optind;
- if (!argv[0])
- bb_show_usage();
- if (opt & OPT_p) {
- pid_str = *argv++;
- if (*argv) { /* "-p <priority> <pid> [...]" */
- priority = pid_str;
- pid_str = *argv;
- }
- /* else "-p <pid>", and *argv == NULL */
- pid = xatoul_range(pid_str, 1, ((unsigned)(pid_t)ULONG_MAX) >> 1);
- } else {
- priority = *argv++;
- if (!*argv)
- bb_show_usage();
- }
-
- current_new = "current\0new";
- if (opt & OPT_p) {
- int pol;
- print_rt_info:
- pol = sched_getscheduler(pid);
- if (pol < 0)
- bb_perror_msg_and_die("can't %cet pid %d's policy", 'g', (int)pid);
- printf("pid %d's %s scheduling policy: %s\n",
- pid, current_new, policies[pol].name);
- if (sched_getparam(pid, &sp))
- bb_perror_msg_and_die("can't get pid %d's attributes", (int)pid);
- printf("pid %d's %s scheduling priority: %d\n",
- (int)pid, current_new, sp.sched_priority);
- if (!*argv) {
- /* Either it was just "-p <pid>",
- * or it was "-p <priority> <pid>" and we came here
- * for the second time (see goto below) */
- return EXIT_SUCCESS;
- }
- *argv = NULL;
- current_new += 8;
- }
-
- /* from the manpage of sched_getscheduler:
- [...] sched_priority can have a value in the range 0 to 99.
- [...] SCHED_OTHER or SCHED_BATCH must be assigned static priority 0.
- [...] SCHED_FIFO or SCHED_RR can have static priority in 1..99 range.
- */
- sp.sched_priority = xstrtou_range(priority, 0, policy != SCHED_OTHER ? 1 : 0, 99);
-
- if (sched_setscheduler(pid, policy, &sp) < 0)
- bb_perror_msg_and_die("can't %cet pid %d's policy", 's', (int)pid);
-
- if (!argv[0]) /* "-p <priority> <pid> [...]" */
- goto print_rt_info;
-
- BB_EXECVP_or_die(argv);
-}