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authorGravatar Denis Vlasenko <vda.linux@googlemail.com>2008-03-17 09:29:43 +0000
committerGravatar Denis Vlasenko <vda.linux@googlemail.com>2008-03-17 09:29:43 +0000
commitb44c790e41e281965955a83408f35ea53ecdb3d2 (patch)
tree98514dba64f7b74b9d60882bfeca1e2c4976b033 /miscutils/chrt.c
parentd25c33f186c7cf3618c34ce79af94fe156f9ab02 (diff)
downloadbusybox-b44c790e41e281965955a83408f35ea53ecdb3d2.tar.gz
busybox-b44c790e41e281965955a83408f35ea53ecdb3d2.tar.bz2
*: fix various kinds of damage to letter 'c' in Arkadiusz Mickiewicz' surname.
chrt,taskset,dc,eject: shrink crontab: call "vi" with just name, no path watchdog: intercept all fatal signals function old new delta xstrtoull_range - 35 +35 static.sg_commands - 18 +18 packed_usage 23698 23712 +14 watchdog_main 148 151 +3 crontab_main 637 638 +1 base 1 - -1 static.ps 4 - -4 pointer 4 - -4 stack_machine 99 92 -7 run_command 273 260 -13 eject_main 360 343 -17 static.C 30 12 -18 ptok 61 38 -23 xstrtol_range 27 - -27 get_token 35 - -35 taskset_main 586 550 -36 chrt_main 411 372 -39 dc_main 158 117 -41 time_main 1127 1037 -90 ------------------------------------------------------------------------------ (add/remove: 2/5 grow/shrink: 3/9 up/down: 71/-355) Total: -284 bytes text data bss dec hex filename 793680 662 7420 801762 c3be2 busybox_old 793327 662 7412 801401 c3a79 busybox_unstripped
Diffstat (limited to 'miscutils/chrt.c')
-rw-r--r--miscutils/chrt.c92
1 files changed, 46 insertions, 46 deletions
diff --git a/miscutils/chrt.c b/miscutils/chrt.c
index 418e7ae79..0d55e3299 100644
--- a/miscutils/chrt.c
+++ b/miscutils/chrt.c
@@ -13,8 +13,8 @@
#warning your system may be foobared
#endif
static const struct {
- const int policy;
- const char const name[12];
+ int policy;
+ char name[12];
} policies[] = {
{SCHED_OTHER, "SCHED_OTHER"},
{SCHED_FIFO, "SCHED_FIFO"},
@@ -42,83 +42,83 @@ static void show_min_max(int pol)
#define OPT_o (1<<4)
int chrt_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int chrt_main(int argc, char **argv)
+int chrt_main(int argc ATTRIBUTE_UNUSED, char **argv)
{
pid_t pid = 0;
unsigned opt;
struct sched_param sp;
- char *p_opt = NULL, *priority = NULL;
- const char *state = "current\0new";
- int prio = 0, policy = SCHED_RR;
+ char *pid_str;
+ char *priority = priority; /* for compiler */
+ const char *current_new;
+ int policy = SCHED_RR;
- opt_complementary = "r--fo:f--ro:r--fo"; /* only one policy accepted */
- opt = getopt32(argv, "+mp:rfo", &p_opt);
+ /* at least 1 arg; only one policy accepted */
+ opt_complementary = "-1:r--fo:f--ro:r--fo";
+ opt = getopt32(argv, "+mprfo");
if (opt & OPT_r)
policy = SCHED_RR;
if (opt & OPT_f)
policy = SCHED_FIFO;
if (opt & OPT_o)
policy = SCHED_OTHER;
-
if (opt & OPT_m) { /* print min/max */
show_min_max(SCHED_FIFO);
show_min_max(SCHED_RR);
show_min_max(SCHED_OTHER);
fflush_stdout_and_exit(EXIT_SUCCESS);
}
+
+ argv += optind;
if (opt & OPT_p) {
- if (argc == optind+1) { /* -p <priority> <pid> */
- priority = p_opt;
- p_opt = argv[optind];
+ pid_str = *argv++;
+ if (*argv) { /* "-p <priority> <pid> [...]" */
+ priority = pid_str;
+ pid_str = *argv;
}
- argv += optind; /* me -p <arg> */
- pid = xatoul_range(p_opt, 1, ULONG_MAX); /* -p <pid> */
+ /* else "-p <pid>", and *argv == NULL */
+ pid = xatoul_range(pid_str, 1, ((unsigned)(pid_t)ULONG_MAX) >> 1);
} else {
- argv += optind; /* me -p <arg> */
- priority = *argv;
- }
- if (priority) {
- /* 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
- the static priority 0. [...] SCHED_FIFO or
- SCHED_RR can have a static priority in the range 1 to 99.
- */
- prio = xstrtol_range(priority, 0, policy == SCHED_OTHER
- ? 0 : 1, 99);
+ priority = *argv++;
+ if (!*argv)
+ bb_show_usage();
}
+ current_new = "current\0new";
if (opt & OPT_p) {
- int pol = 0;
-print_rt_info:
+ int pol;
+ print_rt_info:
pol = sched_getscheduler(pid);
if (pol < 0)
- bb_perror_msg_and_die("failed to %cet pid %d's policy", 'g', pid);
+ bb_perror_msg_and_die("can't %cet pid %d's policy", 'g', pid);
printf("pid %d's %s scheduling policy: %s\n",
- pid, state, policies[pol].name);
+ pid, current_new, policies[pol].name);
if (sched_getparam(pid, &sp))
- bb_perror_msg_and_die("failed to get pid %d's attributes", pid);
+ bb_perror_msg_and_die("can't get pid %d's attributes", pid);
printf("pid %d's %s scheduling priority: %d\n",
- pid, state, sp.sched_priority);
- if (!*argv) /* no new prio given or we did print already, done. */
+ 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;
}
- sp.sched_priority = prio;
+ /* 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("failed to %cet pid %d's policy", 's', pid);
- if (opt & OPT_p) {
- state += 8;
- ++argv;
+ bb_perror_msg_and_die("can't %cet pid %d's policy", 's', pid);
+
+ if (!*argv) /* "-p <priority> <pid> [...]" */
goto print_rt_info;
- }
- ++argv;
+
BB_EXECVP(*argv, argv);
bb_simple_perror_msg_and_die(*argv);
}
-#undef OPT_p
-#undef OPT_r
-#undef OPT_f
-#undef OPT_o
-#undef OPT_m