1// Licensed to Elasticsearch B.V. under one or more contributor
2// license agreements. See the NOTICE file distributed with
3// this work for additional information regarding copyright
4// ownership. Elasticsearch B.V. licenses this file to you under
5// the Apache License, Version 2.0 (the "License"); you may
6// not use this file except in compliance with the License.
7// You may obtain a copy of the License at
8//
9//     http://www.apache.org/licenses/LICENSE-2.0
10//
11// Unless required by applicable law or agreed to in writing,
12// software distributed under the License is distributed on an
13// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
14// KIND, either express or implied.  See the License for the
15// specific language governing permissions and limitations
16// under the License.
17
18// +build darwin,amd64,cgo
19
20package darwin
21
22import (
23	"github.com/pkg/errors"
24)
25
26const hwMemsizeMIB = "hw.memsize"
27
28func MemTotal() (uint64, error) {
29	var size uint64
30	if err := sysctlByName(hwMemsizeMIB, &size); err != nil {
31		return 0, errors.Wrap(err, "failed to get mem total")
32	}
33
34	return size, nil
35}
36