OpenBSD-4.6/usr.bin/top/top.h

/*	$OpenBSD: top.h,v 1.11 2007/09/25 06:02:36 otto Exp $	*/

/*
 *  Top users/processes display for Unix
 *  Version 3
 *
 * Copyright (c) 1984, 1989, William LeFebvre, Rice University
 * Copyright (c) 1989, 1990, 1992, William LeFebvre, Northwestern University
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR OR HIS EMPLOYER BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/*
 *  Top - a top users display for Berkeley Unix
 *
 *  General (global) definitions
 */

#include <sys/cdefs.h>

/* Current major version number */
#define VERSION		3

/* Number of lines of header information on the standard screen */
extern int Header_lines;

/* Maximum number of columns allowed for display */
#define MAX_COLS	256

/* Log base 2 of 1024 is 10 (2^10 == 1024) */
#define LOG1024		10

/* Special atoi routine returns either a non-negative number or one of: */
#define Infinity	-1
#define Invalid		-2

/* maximum number we can have */
#define Largest		0x7fffffff

/*
 * The entire display is based on these next numbers being defined as is.
 */

#define NUM_AVERAGES    3


struct errs {		/* structure for a system-call error */
        int err;	/* value of errno (that is, the actual error) */
        char *arg;	/* argument that caused the error */
};

extern struct errs errs[];
extern int errcnt;

/* commands.c */
extern int error_count(void);
extern void show_errors(void);
extern char *kill_procs(char *);
extern char *renice_procs(char *);

/* top.c */
extern void quit(int);

/* username.c */
extern char *username(uid_t);
extern uid_t userid(char *);