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wgengine/bench: ignore "engine closing" errors

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On benchmark completion, we shut down the wgengine.
If we happen to poll for status during shutdown,
we get an "engine closing" error.
It doesn't hurt anything; ignore it.

Fixes tailscale/corp#1776

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
This commit is contained in:
Josh Bleecher Snyder
2021-05-11 11:14:53 -07:00
committed by Josh Bleecher Snyder
parent d707e2f7e5
commit 68911f6778
2 changed files with 10 additions and 1 deletions
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7
wgengine/bench/wg.go
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@@ -5,6 +5,7 @@
package main
import (
"errors"
"io"
"log"
"os"
@@ -89,6 +90,9 @@ func setupWGTest(b *testing.B, logf logger.Logf, traf *TrafficGen, a1, a2 netadd
var e1waitDoneOnce sync.Once
e1.SetStatusCallback(func(st *wgengine.Status, err error) {
if errors.Is(err, wgengine.ErrEngineClosing) {
return
}
if err != nil {
log.Fatalf("e1 status err: %v", err)
}
@@ -124,6 +128,9 @@ func setupWGTest(b *testing.B, logf logger.Logf, traf *TrafficGen, a1, a2 netadd
var e2waitDoneOnce sync.Once
e2.SetStatusCallback(func(st *wgengine.Status, err error) {
if errors.Is(err, wgengine.ErrEngineClosing) {
return
}
if err != nil {
log.Fatalf("e2 status err: %v", err)
}