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// Copyright 2019-2024 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 darwin || freebsd || openbsd || dragonfly || netbsd
// +build darwin freebsd openbsd dragonfly netbsd
package sysmem
import (
"syscall"
"unsafe"
)
func sysctlInt64(name string) int64 {
s, err := syscall.Sysctl(name)
if err != nil {
return 0
}
// Make sure it's 8 bytes when we do the cast below.
// We were getting fatal error: checkptr: converted pointer straddles multiple allocations in go 1.22.1 on darwin.
var b [8]byte
copy(b[:], s)
return *(*int64)(unsafe.Pointer(&b[0]))
}
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