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chore: add short circuit logic for dual stack dial to decrease unnecessary goroutine

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This commit is contained in:
wwqgtxx
2026-04-11 11:43:13 +08:00
parent 96a6962b3f
commit 7b73775591
1 changed files with 9 additions and 0 deletions
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component/dialer/dialer.go
+9
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@@ -209,6 +209,12 @@ func dualStackDialContext(ctx context.Context, dialFn dialFunc, network string,
if len(ipv4s) == 0 && len(ipv6s) == 0 {
return nil, ErrorNoIpAddress
}
if len(ipv4s) == 0 && len(ipv6s) != 0 {
return dialFn(ctx, network, ipv6s, port, opt)
}
if len(ipv4s) != 0 && len(ipv6s) == 0 {
return dialFn(ctx, network, ipv4s, port, opt)
}
preferIPVersion := opt.prefer
fallbackTicker := time.NewTicker(dualStackFallbackTimeout)
@@ -289,6 +295,9 @@ func parallelDialContext(ctx context.Context, network string, ips []netip.Addr,
if len(ips) == 0 {
return nil, ErrorNoIpAddress
}
if len(ips) == 1 {
return dialContext(ctx, network, ips[0], port, opt)
}
results := make(chan dialResult)
returned := make(chan struct{})
defer close(returned)