/*
** ATOP - System & Process Monitor
**
** The program 'atop' offers the possibility to view the activity of
** the system on system-level as well as process-level.
** ==========================================================================
** Author: Gerlof Langeveld
** E-mail: gerlof.langeveld@atoptool.nl
** Date: September 2002
** --------------------------------------------------------------------------
** Copyright (C) 2000-2010 Gerlof Langeveld
**
** This program is free software; you can redistribute it and/or modify it
** under the terms of the GNU General Public License as published by the
** Free Software Foundation; either version 2, or (at your option) any
** later version.
**
** This program is distributed in the hope that it will be useful, but
** WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
** See the GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
** --------------------------------------------------------------------------
*/
/*
** structure describing the raw file contents
**
** layout raw file: rawheader
**
** rawrecord \
** compressed system-level statistics | sample 1
** compressed process-level statistics /
**
** rawrecord \
** compressed system-level statistics | sample 2
** compressed process-level statistics /
**
** etcetera .....
*/
#define MYMAGIC (unsigned int) 0xfeedbeef
#define READAHEADOFF 22
#define READAHEADSIZE (1 << READAHEADOFF)
struct rawheader {
unsigned int magic;
unsigned short aversion; /* creator atop version with MSB */
unsigned short future1; /* can be reused */
unsigned short future2; /* can be reused */
unsigned short rawheadlen; /* length of struct rawheader */
unsigned short rawreclen; /* length of struct rawrecord */
unsigned short hertz; /* clock interrupts per second */
unsigned short sfuture[6]; /* future use */
unsigned int sstatlen; /* length of struct sstat */
unsigned int tstatlen; /* length of struct tstat */
struct utsname utsname; /* info about this system */
char cfuture[8]; /* future use */
unsigned int pagesize; /* size of memory page (bytes) */
int supportflags; /* used features */
int osrel; /* OS release number */
int osvers; /* OS version number */
int ossub; /* OS version subnumber */
int ifuture[6]; /* future use */
};
struct rawrecord {
time_t curtime; /* current time (epoch) */
unsigned short flags; /* various flags */
unsigned short sfuture[3]; /* future use */
unsigned int scomplen; /* length of compressed sstat */
unsigned int pcomplen; /* length of compressed tstat's */
unsigned int interval; /* interval (number of seconds) */
unsigned int ndeviat; /* number of tasks in list */
unsigned int nactproc; /* number of processes in list */
unsigned int ntask; /* total number of tasks */
unsigned int totproc; /* total number of processes */
unsigned int totrun; /* number of running threads */
unsigned int totslpi; /* number of sleeping threads(S)*/
unsigned int totslpu; /* number of sleeping threads(D)*/
unsigned int totzomb; /* number of zombie processes */
unsigned int nexit; /* number of exited processes */
unsigned int noverflow; /* number of overflow processes */
unsigned int ifuture[6]; /* future use */
};