nats-server/server/sysmem/mem_linux.go

// Copyright 2019-2021 The NATS 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 linux
// +build linux

package sysmem

import "syscall"

func Memory() int64 {
	var info syscall.Sysinfo_t
	err := syscall.Sysinfo(&info)
	if err != nil {
		return 0
	}
	return int64(info.Totalram) * int64(info.Unit)
}