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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 1991, 1993, 1994
* The Regents of the University of California. All rights reserved.
* Copyright (c) 2026 Project Tick. All rights reserved.
*
* 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.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* Linux-native port: replaces kvm(3) prototypes with Linux /proc equivalents.
*/
#ifndef _EXTERN_H_
#define _EXTERN_H_
#ifndef nitems
#define nitems(x) (sizeof(x) / sizeof((x)[0]))
#endif
#ifdef __cplusplus
#define __BEGIN_DECLS extern "C" {
#define __END_DECLS }
#else
#define __BEGIN_DECLS
#define __END_DECLS
#endif
struct kinfo;
struct var;
struct varent;
typedef struct kinfo KINFO;
typedef struct varent VARENT;
extern fixpt_t ccpu;
extern int cflag, eval, fscale, nlistread, rawcpu;
extern unsigned long mem_total_kb;
extern time_t now;
extern int showthreads, sumrusage, termwidth;
extern struct velisthead varlist;
extern const size_t known_keywords_nb;
__BEGIN_DECLS
char *arguments(KINFO *, VARENT *);
void check_keywords(void);
char *command(KINFO *, VARENT *);
char *cputime(KINFO *, VARENT *);
char *cpunum(KINFO *, VARENT *);
int donlist(void);
char *elapsed(KINFO *, VARENT *);
char *elapseds(KINFO *, VARENT *);
char *emulname(KINFO *, VARENT *);
VARENT *find_varentry(const char *);
char *fmt_argv(char **, char *, char *, size_t);
double getpcpu(const KINFO *);
char *jailname(KINFO *, VARENT *);
size_t aliased_keyword_index(const VAR *);
char *kvar(KINFO *, VARENT *);
char *label(KINFO *, VARENT *);
char *loginclass(KINFO *, VARENT *);
char *logname(KINFO *, VARENT *);
char *longtname(KINFO *, VARENT *);
char *lstarted(KINFO *, VARENT *);
char *maxrss(KINFO *, VARENT *);
char *lockname(KINFO *, VARENT *);
char *mwchan(KINFO *, VARENT *);
char *nwchan(KINFO *, VARENT *);
char *pagein(KINFO *, VARENT *);
void parsefmt(const char *, struct velisthead *, int);
char *pcpu(KINFO *, VARENT *);
char *pmem(KINFO *, VARENT *);
char *pri(KINFO *, VARENT *);
void printheader(void);
char *priorityr(KINFO *, VARENT *);
char *egroupname(KINFO *, VARENT *);
char *rgroupname(KINFO *, VARENT *);
void resolve_aliases(void);
char *runame(KINFO *, VARENT *);
char *rvar(KINFO *, VARENT *);
void showkey(void);
char *started(KINFO *, VARENT *);
char *state(KINFO *, VARENT *);
char *systime(KINFO *, VARENT *);
char *tdev(KINFO *, VARENT *);
char *tdnam(KINFO *, VARENT *);
char *tname(KINFO *, VARENT *);
char *ucomm(KINFO *, VARENT *);
char *username(KINFO *, VARENT *);
char *upr(KINFO *, VARENT *);
char *usertime(KINFO *, VARENT *);
char *vsize(KINFO *, VARENT *);
char *wchan(KINFO *, VARENT *);
/* Linux only: user_from_uid and group_from_gid helpers if not in system */
char *user_from_uid(uid_t, int);
char *group_from_gid(gid_t, int);
/* BSD-like devname(3) or equivalent */
char *devname(dev_t, mode_t);
void free_devnames(void);
__END_DECLS
#endif /* _EXTERN_H_ */
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