mirror of
https://github.com/prometheus/node_exporter.git
synced 2024-12-26 06:04:20 -08:00
84 lines
2.4 KiB
Go
84 lines
2.4 KiB
Go
// Copyright 2015 The Prometheus Authors
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
//go:build openbsd && !amd64 && !nomeminfo
|
|
// +build openbsd,!amd64,!nomeminfo
|
|
|
|
package collector
|
|
|
|
import (
|
|
"fmt"
|
|
)
|
|
|
|
/*
|
|
#include <sys/param.h>
|
|
#include <sys/types.h>
|
|
#include <sys/mount.h>
|
|
#include <sys/sysctl.h>
|
|
|
|
int
|
|
sysctl_uvmexp(struct uvmexp *uvmexp)
|
|
{
|
|
static int uvmexp_mib[] = {CTL_VM, VM_UVMEXP};
|
|
size_t sz = sizeof(struct uvmexp);
|
|
|
|
if(sysctl(uvmexp_mib, 2, uvmexp, &sz, NULL, 0) < 0)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
sysctl_bcstats(struct bcachestats *bcstats)
|
|
{
|
|
static int bcstats_mib[] = {CTL_VFS, VFS_GENERIC, VFS_BCACHESTAT};
|
|
size_t sz = sizeof(struct bcachestats);
|
|
|
|
if(sysctl(bcstats_mib, 3, bcstats, &sz, NULL, 0) < 0)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
*/
|
|
import "C"
|
|
|
|
func (c *meminfoCollector) getMemInfo() (map[string]float64, error) {
|
|
var uvmexp C.struct_uvmexp
|
|
var bcstats C.struct_bcachestats
|
|
|
|
if _, err := C.sysctl_uvmexp(&uvmexp); err != nil {
|
|
return nil, fmt.Errorf("sysctl CTL_VM VM_UVMEXP failed: %w", err)
|
|
}
|
|
|
|
if _, err := C.sysctl_bcstats(&bcstats); err != nil {
|
|
return nil, fmt.Errorf("sysctl CTL_VFS VFS_GENERIC VFS_BCACHESTAT failed: %w", err)
|
|
}
|
|
|
|
ps := float64(uvmexp.pagesize)
|
|
|
|
// see uvm(9)
|
|
return map[string]float64{
|
|
"active_bytes": ps * float64(uvmexp.active),
|
|
"cache_bytes": ps * float64(bcstats.numbufpages),
|
|
"free_bytes": ps * float64(uvmexp.free),
|
|
"inactive_bytes": ps * float64(uvmexp.inactive),
|
|
"size_bytes": ps * float64(uvmexp.npages),
|
|
"swap_size_bytes": ps * float64(uvmexp.swpages),
|
|
"swap_used_bytes": ps * float64(uvmexp.swpginuse),
|
|
"swapped_in_pages_bytes_total": ps * float64(uvmexp.pgswapin),
|
|
"swapped_out_pages_bytes_total": ps * float64(uvmexp.pgswapout),
|
|
"wired_bytes": ps * float64(uvmexp.wired),
|
|
}, nil
|
|
}
|