glibtop_machine.h

linux 操作系统下对系统资源监控程序的编写

/* $Id: glibtop_machine.h,v 1.11 2003/10/20 15:20:16 hadess Exp $ */

/* Copyright (C) 1998-99 Martin Baulig
   This file is part of LibGTop 1.0.

   Contributed by Martin Baulig <[e-mail]>, April 1998.

   LibGTop 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 of the License,
   or (at your option) any later version.

   LibGTop 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 LibGTop; see the file COPYING. If not, write to the
   Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.
*/

#ifndef __GLIBTOP_MACHINE_H__
#define __GLIBTOP_MACHINE_H__

/* make sure param.h gets loaded with KERNEL defined to get PZERO & NZERO */
#define KERNEL
#include <sys/param.h>
#undef KERNEL

#include <stdio.h>
#include <kvm.h>
#include <nlist.h>
#include <math.h>
#include <sys/dir.h>
#include <sys/user.h>
#include <sys/proc.h>
#include <sys/dk.h>
#include <sys/vm.h>
#include <sys/file.h>
#include <sys/time.h>
#include <vm/page.h>

#ifdef solbourne
#include <sys/syscall.h>
#endif

#include "loadavg.h"

G_BEGIN_DECLS

/* Older versions of SunOS don't have a typedef for pid_t.
   Hopefully this will catch all those cases without causing other problems.
 */
#ifndef __sys_stdtypes_h
typedef int pid_t;
#endif

/* definitions for indices in the nlist array */
#define X_AVENRUN	0
#define X_CCPU		1
#define X_MPID		2
#define X_NPROC		3
#define X_PROC		4
#define X_TOTAL		5
#define X_CP_TIME	6
#define X_PAGES		7
#define X_EPAGES	8
#define X_SHMINFO	9
#define X_MSGINFO	10
#define X_SEMINFO	11

#ifdef MULTIPROCESSOR
#define X_NCPU		12
#define X_MP_TIME	13
#endif

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

typedef struct _glibtop_machine		glibtop_machine;

struct _glibtop_machine
{
	uid_t uid, euid;		/* Real and effective user id */
	gid_t gid, egid;		/* Real and effective group id */
	int nlist_count;		/* Number of symbols in the nlist */
	int ncpu;			/* Number of CPUs we have */
	int nproc;			/* Number of entries in the process array */
	size_t ptable_size;		/* Size of process array. */
	unsigned long ptable_offset;	/* Offset of process array in kernel. */
	struct proc *proc_table;	/* Process array. */
	unsigned long pages, epages;
	struct page *physpage;
	int bytesize, count;
	int pageshift;			/* log base 2 of the pagesize */
	kvm_t *kd;
};

/* Those functions are used internally in libgtop */

#ifdef _IN_LIBGTOP

extern struct nlist _glibtop_nlist[];

int _glibtop_check_nlist (void *server, register struct nlist *nlst);
int _glibtop_getkval (void *void_server, unsigned long offset, int *ptr,
		      int size, char *refstr);
void _glibtop_read_proc_table (void *void_server);
struct proc *_glibtop_find_pid (void *void_server, pid_t pid);

#endif

G_END_DECLS

#endif