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chrt: -m can be used without any arguments. Closes bug 2989

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2010-12-19 04:07:50 +01:00
parent 96c8a6b5ea
commit 1393fc1161
1 changed files with 10 additions and 8 deletions
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18
miscutils/chrt.c
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@ -53,23 +53,25 @@ int chrt_main(int argc UNUSED_PARAM, char **argv)
const char *current_new; const char *current_new;
int policy = SCHED_RR; int policy = SCHED_RR;
/* at least 1 arg; only one policy accepted */ /* only one policy accepted */
opt_complementary = "-1:r--fo:f--ro:o--rf"; opt_complementary = "r--fo:f--ro:o--rf";
opt = getopt32(argv, "+mprfo"); 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) if (opt & OPT_r)
policy = SCHED_RR; policy = SCHED_RR;
if (opt & OPT_f) if (opt & OPT_f)
policy = SCHED_FIFO; policy = SCHED_FIFO;
if (opt & OPT_o) if (opt & OPT_o)
policy = SCHED_OTHER; 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; argv += optind;
if (!argv[0])
bb_show_usage();
if (opt & OPT_p) { if (opt & OPT_p) {
pid_str = *argv++; pid_str = *argv++;
if (*argv) { /* "-p <priority> <pid> [...]" */ if (*argv) { /* "-p <priority> <pid> [...]" */