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Merged some stuff from `stub_suid'.

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This commit is contained in:
Martin Baulig
1998-08-07 13:14:17 +00:00
parent 8e8cb05168
commit 35e900692a
17 changed files with 317 additions and 535 deletions
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90
sysdeps/freebsd/cpu.c
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@@ -2,7 +2,7 @@
/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
This file is part of the Gnome Top Library.
Contributed by Joshua Sled <jsled@xcf.berkeley.edu>, July 1998.
Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
The Gnome Top Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
@@ -19,84 +19,28 @@
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <config.h>
#include <glibtop.h>
#include <glibtop/error.h>
#include <glibtop/cpu.h>
#include <nlist.h>
#include <kvm.h>
#include <sys/dkstat.h>
#include <time.h>
#include <sys/types.h>
#include <sys/sysctl.h>
#include <glibtop_suid.h>
static const unsigned long _glibtop_sysdeps_cpu =
(1 << GLIBTOP_CPU_TOTAL) + (1 << GLIBTOP_CPU_USER) +
(1 << GLIBTOP_CPU_NICE) + (1 << GLIBTOP_CPU_SYS) +
(1 << GLIBTOP_CPU_IDLE) + (1 << GLIBTOP_CPU_FREQUENCY);
static const unsigned long _glibtop_sysdeps_cpu = 0;
/* Init function. */
void
glibtop_init_cpu_p (glibtop *server)
{
server->sysdeps.cpu = _glibtop_sysdeps_cpu;
}
/* Provides information about cpu usage. */
void
glibtop_get_cpu_s (glibtop *server, glibtop_cpu *buf)
glibtop_get_cpu_p (glibtop *server, glibtop_cpu *buf)
{
/* kvm_* vars */
kvm_t *kd;
static const int nlst_length=2;
long cpts[CPUSTATES];
/* sysctl vars*/
static const int mib_length=2;
int mib[mib_length];
struct clockinfo ci;
size_t length;
/* nlist structure for kernel access */
struct nlist nlst[nlst_length] = {
{ "_cp_time" },
{ 0 }
};
/* MIB array for sysctl(3) use */
mib[0] = CTL_KERN;
mib[1] = KERN_CLOCKRATE;
glibtop_init_r (& server);
memset (buf, 0, sizeof (glibtop_cpu));
/* Get the value out of the kernel */
if (kvm_open(NULL, NULL, NULL, O_RDONLY, "kvm_open") == NULL) {
/* If we can't get at the kernel, return the null values we just
gave the array. */
return;
}
kvm_nlist(kd, &nlst);
kvm_read(kd, nlst[0].n_value, &cpts, sizeof(cpts));
kvm_close(kd);
/* Get the clockrate data */
length = sizeof(clockinfo);
sysctl(mib, mib_length, &ci, &len, NULL, 0);
buf->flags = _glibtop_sysdeps_cpu;
/* set user time */
buf->user = cpts[CP_USER];
/* set nice time */
buf->nice = cpts[CP_NICE];
/* set sys time */
buf->sys = cpts[CP_SYS];
/* set idle time */
buf->idle = cpts[CP_IDLE];
/* set frequency */
/*
FIXME -- is hz, tick, profhz or stathz wanted?
buf->frequency = sysctl("kern.clockrate", ...);
struct clockinfo
*/
buf->frequency = ci.hz;
/* set total */
buf->total = cpts[CP_USER] + cpts[CP_NICE]
+ cpts[CP_SYS] + cpts[CP_IDLE];
glibtop_init_p (server, GLIBTOP_SYSDEPS_CPU, 0);
memset (buf, 0, sizeof (glibtop_cpu));
}