mirror of
https://github.com/prometheus/node_exporter.git
synced 2024-12-26 22:19:44 -08:00
44 lines
1.1 KiB
Go
44 lines
1.1 KiB
Go
// Copyright 2017 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 !nokvm && (freebsd || dragonfly)
|
|
// +build !nokvm
|
|
// +build freebsd dragonfly
|
|
|
|
package collector
|
|
|
|
import (
|
|
"fmt"
|
|
"sync"
|
|
)
|
|
|
|
// #cgo LDFLAGS: -lkvm
|
|
// #include "kvm_bsd.h"
|
|
import "C"
|
|
|
|
type kvm struct {
|
|
mu sync.Mutex
|
|
hasErr bool
|
|
}
|
|
|
|
func (k *kvm) SwapUsedPages() (value uint64, err error) {
|
|
k.mu.Lock()
|
|
defer k.mu.Unlock()
|
|
if C._kvm_swap_used_pages((*C.uint64_t)(&value)) == -1 {
|
|
k.hasErr = true
|
|
return 0, fmt.Errorf("couldn't get kvm stats")
|
|
}
|
|
|
|
return value, nil
|
|
}
|