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Fix guard pattern for max parallel DNS requests

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This commit is contained in:
Quentin McGaw
2020-10-12 17:35:46 +00:00
parent ec157f102b
commit ae7fc5fe96
2 changed files with 6 additions and 6 deletions
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6
internal/updater/pia.go
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@@ -75,7 +75,6 @@ func (u *updater) updatePIAOld(ctx context.Context) (err error) {
return fmt.Errorf("cannot find any hosts in %s", fileName)
}
region := strings.TrimSuffix(fileName, ".ovpn")
guard <- struct{}{}
wg.Add(1)
go resolvePIAHostname(ctx, wg, region, hosts, u.lookupIP, errors, serversCh, guard)
}
@@ -100,9 +99,10 @@ func (u *updater) updatePIAOld(ctx context.Context) (err error) {
func resolvePIAHostname(ctx context.Context, wg *sync.WaitGroup,
region string, hosts []string, lookupIP lookupIPFunc,
errors chan<- error, serversCh chan<- models.PIAServer, guard chan<- struct{}) {
errors chan<- error, serversCh chan<- models.PIAServer, guard chan struct{}) {
guard <- struct{}{}
defer func() {
guard <- struct{}{}
<-guard
wg.Done()
}()
var IPs []net.IP //nolint:prealloc