portlist: fail earlier, more nicely on iOS
import (
"context"
+ "errors"
+ "runtime"
"time"
+
+ "tailscale.com/version"
)
// Poller scans the systems for listening ports periodically and sends
@@ -28,8 +32,11 @@ type Poller struct {
}
// NewPoller returns a new portlist Poller. It returns an error
-// if the portlist couldn't be obtained. Subsequent
+// if the portlist couldn't be obtained.
func NewPoller() (*Poller, error) {
+ if runtime.GOOS == "darwin" && version.IsMobile() {
+ return nil, errors.New("not available on iOS")
+ }
p := &Poller{
c: make(chan List),
quitCh: make(chan struct{}),
