collector: add openbsd suport to filesystem colector

collector/filesystem_freebsd.go

@@ -1,68 +0,0 @@
-// 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.
-
-// +build !nofilesystem
-
-package collector
-
-import (
-	"errors"
-	"unsafe"
-
-	"github.com/prometheus/common/log"
-)
-
-/*
-#include <sys/param.h>
-#include <sys/ucred.h>
-#include <sys/mount.h>
-#include <stdio.h>
-*/
-import "C"
-
-const (
-	defIgnoredMountPoints = "^/(dev)($|/)"
-)
-
-var (
-	filesystemLabelNames = []string{"filesystem"}
-)
-
-// Expose filesystem fullness.
-func (c *filesystemCollector) GetStats() (stats []filesystemStats, err error) {
-	var mntbuf *C.struct_statfs
-	count := C.getmntinfo(&mntbuf, C.MNT_NOWAIT)
-	if count == 0 {
-		return nil, errors.New("getmntinfo() failed")
-	}
-
-	mnt := (*[1 << 30]C.struct_statfs)(unsafe.Pointer(mntbuf))
-	stats = []filesystemStats{}
-	for i := 0; i < int(count); i++ {
-		name := C.GoString(&mnt[i].f_mntonname[0])
-		if c.ignoredMountPointsPattern.MatchString(name) {
-			log.Debugf("Ignoring mount point: %s", name)
-			continue
-		}
-		labelValues := []string{name}
-		stats = append(stats, filesystemStats{
-			labelValues: labelValues,
-			size:        float64(mnt[i].f_blocks) * float64(mnt[i].f_bsize),
-			free:        float64(mnt[i].f_bfree) * float64(mnt[i].f_bsize),
-			avail:       float64(mnt[i].f_bavail) * float64(mnt[i].f_bsize),
-			files:       float64(mnt[i].f_files),
-			filesFree:   float64(mnt[i].f_ffree),
-		})
-	}
-	return stats, nil
-}