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/* renice.c - renice process
*
* Copyright 2013 CE Strake <strake888 at gmail.com>
*
* See http://pubs.opengroup.org/onlinepubs/9699919799/utilities/
* See http://refspecs.linuxfoundation.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/cmdbehav.html
USE_RENICE(NEWTOY(renice, "gpun#", TOYFLAG_BIN))
config RENICE
bool "renice"
default n
help
usage: renice [-gpu] -n increment ID ...
*/
#define FOR_renice
#include "toys.h"
GLOBALS(
long nArgu;
)
void renice_main (void) {
int ii;
int which = toys.optflags & FLAG_g ? PRIO_PGRP :
toys.optflags & FLAG_u ? PRIO_USER :
PRIO_PROCESS;
if (!(toys.optflags & FLAG_n)) error_exit ("no increment given");
for (ii = 0; ii < toys.optc; ii++) {
id_t id;
if (isdigit (toys.optargs[ii][0])) id = strtoul (toys.optargs[ii], 0, 10);
else if (toys.optflags & FLAG_u) id = getpwnam (toys.optargs[ii]) -> pw_uid;
else {
error_msg ("not a number: %s", toys.optargs[ii]);
toys.exitval = 1;
continue;
}
if (setpriority (which, id, getpriority (which, id) + TT.nArgu) < 0) {
error_msg ("failed to setpriority of %d", id);
toys.exitval = 1;
}
}
}
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