Changeset 3232 in MondoRescue for branches/3.2/mindi-busybox/miscutils/chrt.c

Timestamp:

Jan 1, 2014, 12:47:38 AM (10 years ago)

Author:

Bruno Cornec

Message:

• Update mindi-busybox to 1.21.1

File:

• branches/3.2/mindi-busybox/miscutils/chrt.c (modified) (5 diffs)

branches/3.2/mindi-busybox/miscutils/chrt.c

@@ -6 +6 @@
  * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  */
+
+//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"
@@ -54 +70 @@
     int policy = SCHED_RR;
 
-    /* at least 1 arg; only one policy accepted */
-    opt_complementary = "-1:r--fo:f--ro:r--fo";
+    /* 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;
@@ -63 +85 @@
     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 (!argv[0])
+        bb_show_usage();
     if (opt & OPT_p) {
         pid_str = *argv++;
@@ -91 +109 @@
         pol = sched_getscheduler(pid);
         if (pol < 0)
-            bb_perror_msg_and_die("can't %cet pid %d's policy", 'g', pid);
+            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", pid);
+            bb_perror_msg_and_die("can't get pid %d's attributes", (int)pid);
         printf("pid %d's %s scheduling priority: %d\n",
-                pid, current_new, sp.sched_priority);
+                (int)pid, current_new, sp.sched_priority);
         if (!*argv) {
             /* Either it was just "-p <pid>",
@@ -116 +134 @@
 
     if (sched_setscheduler(pid, policy, &sp) < 0)
-        bb_perror_msg_and_die("can't %cet pid %d's policy", 's', pid);
+        bb_perror_msg_and_die("can't %cet pid %d's policy", 's', (int)pid);
 
     if (!argv[0]) /* "-p <priority> <pid> [...]" */