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/* Copyright (C) 1998 Joshua Sled
This file is part of LibGTop 1.0.
Contributed by Joshua Sled <jsled@xcf.berkeley.edu>, 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., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <config.h>
#include <glibtop.h>
#include <glibtop/error.h>
#include <glibtop/prockernel.h>
#include <glibtop_suid.h>
#include <kvm.h>
#include <sys/param.h>
#include <sys/sysctl.h>
#include <sys/proc.h>
#include <unistd.h>
#include <fcntl.h>
static const unsigned long _glibtop_sysdeps_proc_kernel_pstats =
(1L << GLIBTOP_PROC_KERNEL_K_FLAGS) +
(1L << GLIBTOP_PROC_KERNEL_MIN_FLT) +
(1L << GLIBTOP_PROC_KERNEL_MAJ_FLT);
static const unsigned long _glibtop_sysdeps_proc_kernel_wchan =
(1L << GLIBTOP_PROC_KERNEL_WCHAN) +
(1L << GLIBTOP_PROC_KERNEL_NWCHAN);
/* Init function. */
void
_glibtop_init_proc_kernel_p (glibtop *server)
{
server->sysdeps.proc_kernel = _glibtop_sysdeps_proc_kernel_pstats |
_glibtop_sysdeps_proc_kernel_wchan;
}
void
glibtop_get_proc_kernel_p (glibtop *server,
glibtop_proc_kernel *buf,
pid_t pid)
{
struct kinfo_proc *pinfo;
int count;
glibtop_init_p (server, (1L << GLIBTOP_SYSDEPS_PROC_KERNEL), 0);
memset (buf, 0, sizeof (glibtop_proc_kernel));
if (server->sysdeps.proc_time == 0)
return;
/* It does not work for the swapper task. */
if (pid == 0) return;
glibtop_suid_enter (server);
/* Get the process information */
pinfo = kvm_getprocs (server->machine->kd, KERN_PROC_PID, pid,
sizeof(*pinfo), &count);
if (pinfo == NULL) {
glibtop_warn_io_r (server, "kvm_getprocs (%d)", pid);
glibtop_suid_leave (server);
return;
}
glibtop_suid_leave (server);
#define PROC_WCHAN p_wchan
#define PROC_WMESG p_wmesg
buf->nwchan = (unsigned long) pinfo [0].PROC_WCHAN;
buf->flags |= (1L << GLIBTOP_PROC_KERNEL_NWCHAN);
if (pinfo [0].PROC_WCHAN && pinfo [0].PROC_WMESG[0] != 0) {
g_strlcpy (buf->wchan, pinfo [0].PROC_WMESG,
sizeof buf->wchan);
buf->flags |= (1L << GLIBTOP_PROC_KERNEL_WCHAN);
} else {
buf->wchan [0] = 0;
}
buf->k_flags = (unsigned long) pinfo [0].p_flag;
buf->min_flt = (unsigned long) pinfo [0].p_uru_minflt;
buf->maj_flt = (unsigned long) pinfo [0].p_uru_majflt;
buf->flags |= _glibtop_sysdeps_proc_kernel_pstats;
return;
}
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