gotosocial/vendor/github.com/pbnjay/memory/memsysctl.go

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// +build darwin freebsd openbsd dragonfly netbsd
package memory
import (
"syscall"
"unsafe"
)
func sysctlUint64(name string) (uint64, error) {
s, err := syscall.Sysctl(name)
if err != nil {
return 0, err
}
// hack because the string conversion above drops a \0
b := []byte(s)
if len(b) < 8 {
b = append(b, 0)
}
return *(*uint64)(unsafe.Pointer(&b[0])), nil
}