[unix-history] / usr / src / lib / libc / gen / nice.c

/*
 * Copyright (c) 1983 The Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)nice.c	5.5 (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */

#include <sys/time.h>
#include <sys/resource.h>
#include <unistd.h>

/*
 * Backwards compatible nice.
 */
int
nice(incr)
	int incr;
{
	int prio;
	extern int errno;

	errno = 0;
	prio = getpriority(PRIO_PROCESS, 0);
	if (prio == -1 && errno)
		return (-1);
	return (setpriority(PRIO_PROCESS, 0, prio + incr));
}
Commit	Line	Data
bb0cfa24	1	/*
bfd3a734 KB	2	* Copyright (c) 1983 The Regents of the University of California.
	3	* All rights reserved.
	4	*
269a7923	5	* %sccs.include.redist.c%
bb0cfa24 DF	6	*/
bb0cfa24 DF	7
2ce81398	8	#if defined(LIBC_SCCS) && !defined(lint)
c5980113	9	static char sccsid[] = "@(#)nice.c 5.5 (Berkeley) %G%";
bfd3a734	10	#endif /* LIBC_SCCS and not lint */
39ddd9b2 SL	11
	12	#include <sys/time.h>
	13	#include <sys/resource.h>
c5980113	14	#include <unistd.h>
39ddd9b2 SL	15
	16	/*
	17	* Backwards compatible nice.
	18	*/
c5980113	19	int
39ddd9b2 SL	20	nice(incr)
	21	int incr;
	22	{
	23	int prio;
	24	extern int errno;
	25
	26	errno = 0;
	27	prio = getpriority(PRIO_PROCESS, 0);
	28	if (prio == -1 && errno)
	29	return (-1);
	30	return (setpriority(PRIO_PROCESS, 0, prio + incr));
	31	}