procsegment.c

来自「linux 操作系统下对系统资源监控程序的编写」· C语言 代码 · 共 83 行

/* $Id: procsegment.c,v 1.17 2003/10/19 16:55:32 carlos Exp $ */

/* Copyright (C) 1998 Joshua Sled
   This file is part of LibGTop 1.0.

   Contributed by Joshua Sled <[e-mail]>, July 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.
*/

#include <glibtop.h>
#include <glibtop/error.h>
#include <glibtop/procsegment.h>

#include <glibtop_suid.h>

#include <kvm.h>
#include <sys/param.h>
#include <sys/sysctl.h>

static const unsigned long _glibtop_sysdeps_proc_segment = 0;

/* Init function. */

void
glibtop_init_proc_segment_p (glibtop *server)
{
	server->sysdeps.proc_segment = _glibtop_sysdeps_proc_segment;
}

/* Provides detailed information about a process. */

void
glibtop_get_proc_segment_p (glibtop *server,
			    glibtop_proc_segment *buf,
			    pid_t pid)
{
	glibtop_init_p (server, (1L << GLIBTOP_SYSDEPS_PROC_SEGMENT), 0);
	
	memset (buf, 0, sizeof (glibtop_proc_segment));

#if 0
	/* Get the process info from the kernel */
	kvm_getprocs (server->machine.kd, KERN_PROC_PID, pid, count);
	if (*count != 1) {
		return; /* the zeroed-out buffer indicating no data */
	}

	/* trs: text resident set size
	   pinfo[0]->kp_eproc.e_xrssize;
	*/
	/* buf->trs = pinfo[0]->kp_eproc.e_xrssize; */
	/* lrs: shared-lib resident set size
	   ?  */
	/* drs: data resident set size
	   pinfo[0]->kp_eproc.e_vm.vm_map.vm_dsize;
	*/
	/* dt: dirty pages
	 */
	/* start_code: address of beginning of code segment
	   
	 */
	/* end_code: address of end of code segment
	 */
	/* start_stack: address of the bottom of stack segment
	 */
#endif
}