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// Copyright (c) Tailscale Inc & contributors
// SPDX-License-Identifier: BSD-3-Clause

//go:build darwin

package sysresources

import "golang.org/x/sys/unix"

func totalMemoryImpl() uint64 {
	val, err := unix.SysctlUint64("hw.memsize")
	if err != nil {
		return 0
	}
	return val
}