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/*
KSysGuard, the KDE System Guard
Copyright (c) 1999-2000 Hans Petter Bieker <[email protected]>
Copyright (c) 1999 Chris Schlaeger <[email protected]>
This program 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.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/sysctl.h>
#include <sys/vmmeter.h>
#include <vm/vm_param.h>
#include <fcntl.h>
#include <kvm.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "Command.h"
#include "Memory.h"
#include "ksysguardd.h"
static size_t Total = 0;
static size_t MFree = 0;
static size_t Used = 0;
static size_t Buffers = 0;
static size_t Cached = 0;
static size_t Application = 0;
static size_t STotal = 0;
static size_t SFree = 0;
static size_t SUsed = 0;
static kvm_t *kd;
void
initMemory(struct SensorModul* sm)
{
char *nlistf = NULL;
char *memf = NULL;
char buf[_POSIX2_LINE_MAX];
if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == NULL) {
log_error("kvm_openfiles()");
return;
}
registerMonitor("mem/physical/free", "integer", printMFree, printMFreeInfo, sm);
registerMonitor("mem/physical/used", "integer", printUsed, printUsedInfo, sm);
registerMonitor("mem/physical/buf", "integer", printBuffers, printBuffersInfo, sm);
registerMonitor("mem/physical/cached", "integer", printCached, printCachedInfo, sm);
registerMonitor("mem/physical/application", "integer", printApplication, printApplicationInfo, sm);
registerMonitor("mem/swap/free", "integer", printSwapFree, printSwapFreeInfo, sm);
registerMonitor("mem/swap/used", "integer", printSwapUsed, printSwapUsedInfo, sm);
}
void
exitMemory(void)
{
kvm_close(kd);
}
int
updateMemory(void)
{
size_t len;
FILE *file;
char buf[256];
struct kvm_swap kswap[16];
int i, swap_count, hlen, pagesize = getpagesize();
long blocksize;
len = sizeof (Total);
sysctlbyname("hw.physmem", &Total, &len, NULL, 0);
Total /= 1024;
/* Borrowed from pstat */
swap_count = kvm_getswapinfo(kd, kswap, 16, SWIF_DEV_PREFIX);
getbsize(&hlen, &blocksize);
#define CONVERT(v) ((int)((quad_t)(v) * pagesize / blocksize))
if (swap_count > 0) {
STotal = CONVERT(kswap[0].ksw_total);
SUsed = CONVERT(kswap[0].ksw_used);
SFree = CONVERT(kswap[0].ksw_total - kswap[0].ksw_used);
}
len = sizeof (Buffers);
if ((sysctlbyname("vfs.bufspace", &Buffers, &len, NULL, 0) == -1) || !len)
Buffers = 0; /* Doesn't work under FreeBSD v2.2.x */
Buffers /= 1024;
len = sizeof (Cached);
if ((sysctlbyname("vm.stats.vm.v_cache_count", &Cached, &len, NULL, 0) == -1) || !len)
Cached = 0; /* Doesn't work under FreeBSD v2.2.x */
Cached *= pagesize / 1024;
len = sizeof (MFree);
if ((sysctlbyname("vm.stats.vm.v_free_count", &MFree, &len, NULL, 0) == -1) || !len)
MFree = 0; /* Doesn't work under FreeBSD v2.2.x */
MFree *= pagesize / 1024;
Used = Total - MFree;
Application = Used - Buffers - Cached;
return 0;
}
void
printMFree(const char* cmd)
{
fprintf(CurrentClient, "%d\n", MFree);
}
void
printMFreeInfo(const char* cmd)
{
fprintf(CurrentClient, "Free Memory\t0\t%d\tKB\n", Total);
}
void
printUsed(const char* cmd)
{
fprintf(CurrentClient, "%d\n", Used);
}
void
printUsedInfo(const char* cmd)
{
fprintf(CurrentClient, "Used Memory\t0\t%d\tKB\n", Total);
}
void
printBuffers(const char* cmd)
{
fprintf(CurrentClient, "%d\n", Buffers);
}
void
printBuffersInfo(const char* cmd)
{
fprintf(CurrentClient, "Buffer Memory\t0\t%d\tKB\n", Total);
}
void
printCached(const char* cmd)
{
fprintf(CurrentClient, "%d\n", Cached);
}
void
printCachedInfo(const char* cmd)
{
fprintf(CurrentClient, "Cached Memory\t0\t%d\tKB\n", Total);
}
void
printApplication(const char* cmd)
{
fprintf(CurrentClient, "%d\n", Application);
}
void
printApplicationInfo(const char* cmd)
{
fprintf(CurrentClient, "Application Memory\t0\t%ld\tKB\n", Total);
}
void
printSwapUsed(const char* cmd)
{
fprintf(CurrentClient, "%d\n", SUsed);
}
void
printSwapUsedInfo(const char* cmd)
{
fprintf(CurrentClient, "Used Swap Memory\t0\t%d\tKB\n", STotal);
}
void
printSwapFree(const char* cmd)
{
fprintf(CurrentClient, "%d\n", SFree);
}
void
printSwapFreeInfo(const char* cmd)
{
fprintf(CurrentClient, "Free Swap Memory\t0\t%d\tKB\n", STotal);
}
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