96 lines
2.6 KiB
C
96 lines
2.6 KiB
C
/* $OpenBSD: prockernel.c,v 1.3 2011/05/23 19:35:55 jasper Exp $ */
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/* Copyright (C) 1998 Joshua Sled
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This file is part of LibGTop 1.0.
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Contributed by Joshua Sled <jsled@xcf.berkeley.edu>, July 1998.
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LibGTop is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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LibGTop is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with LibGTop; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.
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*/
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#include <config.h>
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#include <glibtop.h>
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#include <glibtop/error.h>
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#include <glibtop/prockernel.h>
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#include <glibtop_suid.h>
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#include <kvm.h>
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#include <sys/param.h>
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#include <sys/sysctl.h>
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#include <sys/proc.h>
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#include <unistd.h>
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#include <fcntl.h>
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static const unsigned long _glibtop_sysdeps_proc_kernel_pstats =
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(1L << GLIBTOP_PROC_KERNEL_MIN_FLT) +
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(1L << GLIBTOP_PROC_KERNEL_MAJ_FLT);
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static const unsigned long _glibtop_sysdeps_proc_kernel_wchan =
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(1L << GLIBTOP_PROC_KERNEL_NWCHAN) +
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(1L << GLIBTOP_PROC_KERNEL_WCHAN);
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/* Init function. */
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void
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_glibtop_init_proc_kernel_p (glibtop *server)
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{
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server->sysdeps.proc_kernel = _glibtop_sysdeps_proc_kernel_pstats |
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_glibtop_sysdeps_proc_kernel_wchan;
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}
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void
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glibtop_get_proc_kernel_p (glibtop *server,
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glibtop_proc_kernel *buf,
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pid_t pid)
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{
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struct kinfo_proc2 *pinfo;
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int count;
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char filename [BUFSIZ];
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struct stat statb;
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glibtop_init_p (server, (1L << GLIBTOP_SYSDEPS_PROC_KERNEL), 0);
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memset (buf, 0, sizeof (glibtop_proc_kernel));
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if (server->sysdeps.proc_time == 0)
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return;
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/* It does not work for the swapper task. */
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if (pid == 0) return;
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/* Get the process information */
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pinfo = kvm_getproc2 (server->machine.kd, KERN_PROC_PID, pid,
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sizeof(*pinfo), &count);
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if ((pinfo == NULL) || (count != 1)) {
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glibtop_warn_io_r (server, "kvm_getprocs (%d)", pid);
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return;
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}
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buf->nwchan = pinfo[0].p_wchan;
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if (pinfo[0].p_wchan && pinfo[0].p_wmesg)
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g_strlcpy(buf->wchan, pinfo[0].p_wmesg,
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sizeof buf->wchan);
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buf->min_flt = pinfo[0].p_uru_minflt;
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buf->maj_flt = pinfo[0].p_uru_majflt;
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buf->flags |= (_glibtop_sysdeps_proc_kernel_wchan
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| _glibtop_sysdeps_proc_kernel_pstats);
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}
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