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