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Importing FreeBSD port of libgtop from Josh Sled.

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This commit is contained in:
Martin Baulig
1998-08-06 23:34:50 +00:00
parent 864867aeeb
commit 79f5a9c667
20 changed files with 554 additions and 244 deletions
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73
sysdeps/freebsd/mem.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 Martin Baulig <martin@home-of-linux.org>, April 1998.
Contributed by Joshua Sled <jsled@xcf.berkeley.edu>, July 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
@@ -22,10 +22,77 @@
#include <config.h>
#include <glibtop/mem.h>
#include <sys/types.h>
#include <sys/sysctl.h>
#include <sys/vmmeter.h>
static const unsigned long _glibtop_sysdeps_mem =
(1 << GLIBTOP_MEM_TOTAL) + (1 << GLIBTOP_MEM_USED) +
(1 << GLIBTOP_MEM_FREE) + (1 << GLIBTOP_MEM_SHARED) +
(1 << GLIBTOP_MEM_BUFFER) + (1 << GLIBTOP_MEM_CACHED);
/* + (1 << GLIBTOP_MEM_USER); */
/* Provides information about memory usage. */
void
glibtop_get_mem_p (glibtop *server, glibtop_mem *buf)
glibtop_get_mem_s (glibtop *server, glibtop_mem *buf)
{
memset (buf, 0, sizeof (glibtop_mem));
/* for kvm_*, which is needed to get cache and buffer data */
kvm_t *kd;
struct nlist nlst[3];
static unsigned long cnt_offset;
static unsigned long bufsize_offset;
struct vmtotal vmt;
static int bufspace = 0;
/* for sysctl(3) */
size_t length_vmt;
int mib_vm[2];
struct vmmeter vmm;
/* Setup nlist array */
nlst = {
{ "_cnt" },
{ "_bufspace" },
{ 0 }
}
/* Setup MIB array for sysctl */
mib_vm[0] = CTL_VM;
mib_vm[1] = VM_METER;
glibtop_init_r (&server, 0, 0);
memset (buf, 0, sizeof (glibtop_mem));
/* Get the data from sysctl */
length_vmt = sizeof(vmt);
sysctl(mib, 2, &vmt, &length_vmt, NULL, 0);
/* Get the data from kvm_* */
kd = kvm_open(NULL, NULL, NULL, OD_RDONLY, "kvm_open");
kvm_nlist(kd, &nlst);
cnt_offset = nlst[0].n_value;
bufspace_offset = nlst[1].n_value;
kvm_read(kd, cnt_offset, &vmm, sizeof(vmm));
kvm_read(kd, bufspace_offset, &bufspace, sizeof(bufspace));
kvm_close(kd);
/* Set the values to return */
buf->flags = _glibtop_sysdeps_mem;
/* total */
buf->total = (unsigned long)vmt.t_vm;
/* used */
buf->used = (unsigned long)vmt.t_avm;
/* free */
buf->free = (unsigned long)vmt.t_free;
/* shared */
buf->shared = (unsigned long)vmt.t_vmshr;
/* buffer */
buf->buffer = (unsigned long)bufspace;
/* cached */
buf->cache = (unsigned long)(vmm.v_cache_count * vmm.v_page_size);
/* user */
/* FIXME: Any way to get or calculate this? */
}