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package cgroupv2
import (
"sync"
"syscall"
"golang.org/x/sys/unix"
)
var (
isCgroupV2Once sync.Once
isCgroupV2 bool
isCgroupV2Err error
)
// Enabled returns whether we are running in cgroup 2 cgroup2 mode.
func Enabled() (bool, error) {
isCgroupV2Once.Do(func() {
var st syscall.Statfs_t
if err := syscall.Statfs("/sys/fs/cgroup", &st); err != nil {
isCgroupV2, isCgroupV2Err = false, err
} else {
isCgroupV2, isCgroupV2Err = st.Type == unix.CGROUP2_SUPER_MAGIC, nil
}
})
return isCgroupV2, isCgroupV2Err
}
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