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make it easy to toggle uring on/off

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This commit is contained in:
Josh Bleecher Snyder 2021-06-03 15:55:27 -07:00
parent 4d58223422
commit 78dbd02718
1 changed files with 6 additions and 1 deletions
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7
net/tstun/wrap.go
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@ -568,7 +568,12 @@ func (t *Wrapper) write(buf []byte, offset int) (int, error) {
func (t *Wrapper) read(buf []byte, offset int) (n int, err error) {
// TODO: upstream has graceful shutdown error handling here.
buff := buf[offset-4:]
n, err = t.ring.Read(buff[:])
const useIOUring = false
if useIOUring {
n, err = t.ring.Read(buff[:])
} else {
n, err = t.tdev.(*wgtun.NativeTun).File().Read(buff[:])
}
if errors.Is(err, syscall.EBADFD) {
err = os.ErrClosed
}