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-rw-r--r--toys/posix/renice.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/toys/posix/renice.c b/toys/posix/renice.c
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+++ b/toys/posix/renice.c
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+/* renice.c - renice process
+ *
+ * Copyright 2013 CE Strake <strake888 at gmail.com>
+ *
+ * See http://pubs.opengroup.org/onlinepubs/9699919799/utilities/renice.html
+
+USE_RENICE(NEWTOY(renice, "<1gpun#|", TOYFLAG_BIN))
+
+config RENICE
+ bool "renice"
+ default y
+ help
+ usage: renice [-gpu] -n increment ID ...
+*/
+
+#define FOR_renice
+#include "toys.h"
+
+GLOBALS(
+ long nArgu;
+)
+
+void renice_main(void) {
+ int which = (toys.optflags & FLAG_g) ? PRIO_PGRP :
+ ((toys.optflags & FLAG_u) ? PRIO_USER : PRIO_PROCESS);
+ char **arg;
+
+ for (arg = toys.optargs; *arg; arg++) {
+ char *s = *arg;
+ int id = -1;
+
+ if (toys.optflags & FLAG_u) {
+ struct passwd *p = getpwnam(s);
+ if (p) id = p->pw_uid;
+ } else {
+ id = strtol(s, &s, 10);
+ if (*s) id = -1;
+ }
+
+ if (id < 0) {
+ error_msg("bad '%s'", *arg);
+ continue;
+ }
+
+ if (setpriority(which, id, getpriority(which, id)+TT.nArgu) < 0)
+ perror_msg("setpriority %d", id);
+ }
+}