1 /* 2 * Copyright (c) 1983 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #if defined(LIBC_SCCS) && !defined(lint) 9 static char sccsid[] = "@(#)nice.c 5.4 (Berkeley) 06/01/90"; 10 #endif /* LIBC_SCCS and not lint */ 11 12 #include <sys/time.h> 13 #include <sys/resource.h> 14 15 /* 16 * Backwards compatible nice. 17 */ 18 nice(incr) 19 int incr; 20 { 21 int prio; 22 extern int errno; 23 24 errno = 0; 25 prio = getpriority(PRIO_PROCESS, 0); 26 if (prio == -1 && errno) 27 return (-1); 28 return (setpriority(PRIO_PROCESS, 0, prio + incr)); 29 } 30