4.3BSD - /usr/src/bin/nice.c

   1: /*
   2:  * Copyright (c) 1980 Regents of the University of California.
   3:  * All rights reserved.  The Berkeley software License Agreement
   4:  * specifies the terms and conditions for redistribution.
   5:  */
   6: 
   7: #ifndef lint
   8: char copyright[] =
   9: "@(#) Copyright (c) 1980 Regents of the University of California.\n\
  10:  All rights reserved.\n";
  11: #endif not lint
  12: 
  13: #ifndef lint
  14: static char sccsid[] = "@(#)nice.c	5.2 (Berkeley) 1/12/86";
  15: #endif not lint
  16: 
  17: #include <stdio.h>
  18: 
  19: #include <sys/time.h>
  20: #include <sys/resource.h>
  21: 
  22: main(argc, argv)
  23:     int argc;
  24:     char *argv[];
  25: {
  26:     int nicarg = 10;
  27: 
  28:     if (argc > 1 && argv[1][0] == '-') {
  29:         nicarg = atoi(&argv[1][1]);
  30:         argc--, argv++;
  31:     }
  32:     if (argc < 2) {
  33:         fputs("usage: nice [ -n ] command\n", stderr);
  34:         exit(1);
  35:     }
  36:     if (setpriority(PRIO_PROCESS, 0,
  37:         getpriority(PRIO_PROCESS, 0) + nicarg) < 0) {
  38:         perror("setpriority");
  39:         exit(1);
  40:     }
  41:     execvp(argv[1], &argv[1]);
  42:     perror(argv[1]);
  43:     exit(1);
  44: }

Defined functions

Defined variables