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device: handle broader range of errors in RoutineReceiveIncoming

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RoutineReceiveIncoming exits immediately on net.ErrClosed,
but not on other errors. However, for errors that are known
to be permanent, such as syscall.EAFNOSUPPORT,
we may as well exit immediately instead of retrying.

This considerably speeds up the package device tests right now,
because the Bind sometimes (incorrectly) returns syscall.EAFNOSUPPORT
instead of net.ErrClosed.

Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>
This commit is contained in:
Josh Bleecher Snyder 2021-03-30 12:36:59 -07:00
parent 517f0703f5
commit 6228659a91
1 changed files with 3 additions and 0 deletions
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3
device/receive.go
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@ -104,6 +104,9 @@ func (device *Device) RoutineReceiveIncoming(IP int, bind conn.Bind) {
if errors.Is(err, net.ErrClosed) { if errors.Is(err, net.ErrClosed) {
return return
} }
if neterr, ok := err.(net.Error); ok && !neterr.Temporary() {
return
}
device.log.Errorf("Failed to receive packet: %v", err) device.log.Errorf("Failed to receive packet: %v", err)
if deathSpiral < 10 { if deathSpiral < 10 {
deathSpiral++ deathSpiral++