Function SupportsPidFD

pkg/sys/pidfd_linux.go:36–49

SupportsPidFD returns true if current kernel supports pidfd.

()

// SupportsPidFD returns true if current kernel supports pidfd.
func SupportsPidFD() bool {
	pidfdSupportedOnce.Do(func() {
		logger := log.G(context.Background())

		if err := checkPidFD(); err != nil {
			logger.WithError(err).Error("failed to ensure the kernel supports pidfd")

			pidfdSupported = false
			return
		}
		pidfdSupported = true
	})
	return pidfdSupported
}

func checkPidFD() error {
	// Linux kernel supports pidfd_open(2) since v5.3.