glibtop.h

linux 操作系统下对系统资源监控程序的编写

/* $Id: glibtop.h,v 1.34 2003/10/20 15:19:18 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_H__
#define __GLIBTOP_H__

#include <glibtop/global.h>

#include <glibtop_server.h>
#include <glibtop/types.h>

#ifdef HAVE_GLIBTOP_MACHINE_H
#include <glibtop_machine.h>
#endif

#ifndef GLIBTOP_MOUNTENTRY_LEN
#define GLIBTOP_MOUNTENTRY_LEN	79
#endif

typedef struct _glibtop		glibtop;

#include <glibtop/sysdeps.h>

struct _glibtop
{
	unsigned flags;
	unsigned method;		/* Server Method */
	unsigned error_method;		/* Error Method */
#ifdef HAVE_GLIBTOP_MACHINE_H
	glibtop_machine machine;	/* Machine dependent data */
#endif
	int input [2];			/* Pipe client <- server */
	int output [2];			/* Pipe client -> server */
	int socket;			/* Accepted connection of a socket */
	int ncpu;			/* Number of CPUs, zero if single-processor */
	unsigned long os_version_code;	/* Version code of the operating system */
	const char *name;		/* Program name for error messages */
	const char *server_command;	/* Command used to invoke server */
	const char *server_host;	/* Host the server should run on */
	const char *server_user;	/* Name of the user on the target host */
	const char *server_rsh;		/* Command used to connect to the target host */
	unsigned long features;		/* Server is required for this features */
	unsigned long server_port;	/* Port on which daemon is listening */
	glibtop_sysdeps sysdeps;	/* Detailed feature list */
	glibtop_sysdeps required;	/* Required feature list */
	pid_t pid;			/* PID of the server */
};

extern glibtop *glibtop_global_server;

extern const unsigned long glibtop_server_features;

#define glibtop_init()	glibtop_init_r(&glibtop_global_server, 0, 0);

#define glibtop_close()	glibtop_close_r(glibtop_global_server);

glibtop *
glibtop_init_r (glibtop **server_ptr,
		unsigned long features,
		unsigned flags);

glibtop *
glibtop_init_s (glibtop **server_ptr,
		unsigned long features,
		unsigned flags);

#endif