do prestart dns checkings 10 times faster in parallel

config/config.go

@@ -2,6 +2,7 @@ package config
 
 import (
 	"bytes"
+	"context"
 	"encoding/json"
 	"fmt"
 	"net"
@@ -12,6 +13,7 @@ import (
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/option"
 	dns "github.com/sagernet/sing-dns"
+	"github.com/sagernet/sing/common/batch"
 )
 
 const (
@@ -470,11 +472,19 @@ func BuildConfig(opt ConfigOptions, input option.Options) (*option.Options, erro
 	if len(directDNSDomains) > 0 {
 		trickDnsDomains := []string{}
 		directDNSDomains = removeDuplicateStr(directDNSDomains)
+		b, _ := batch.New(context.Background(), batch.WithConcurrencyNum[bool](10))
 		for _, d := range directDNSDomains {
-			if isBlockedDomain(d) {
-				trickDnsDomains = append(trickDnsDomains, d)
+			b.Go(d, func() (bool, error) {
+				return isBlockedDomain(d), nil
+			})
+		}
+		b.Wait()
+		for domain, isBlock := range b.Result() {
+			if isBlock.Value {
+				trickDnsDomains = append(trickDnsDomains, domain)
 			}
 		}
+
 		trickDomains := strings.Join(trickDnsDomains, ",")
 		trickRule := Rule{Domains: trickDomains, Outbound: OutboundBypassTag}
 		trickDnsRule := trickRule.MakeDNSRule()

go.mod

@@ -19,6 +19,7 @@ require (
 require (
 	berty.tech/go-libtor v1.0.385 // indirect
 	github.com/ajg/form v1.5.1 // indirect
+	github.com/akavel/rsrc v0.10.2 // indirect
 	github.com/andybalholm/brotli v1.0.6 // indirect
 	github.com/caddyserver/certmagic v0.20.0 // indirect
 	github.com/cloudflare/circl v1.3.7 // indirect
@@ -103,8 +104,8 @@ require (
 	lukechampine.com/blake3 v1.2.1 // indirect
 )
 
-replace github.com/sagernet/sing-box => github.com/hiddify/hiddify-sing-box v1.7.9-0.20240210202736-e5b942dbf7d9
+replace github.com/sagernet/sing-box => github.com/hiddify/hiddify-sing-box v1.7.9-0.20240212055434-7c6e0e8e8af9
 
 replace github.com/sagernet/wireguard-go => github.com/hiddify/wireguard-go v0.0.0-20240125143346-481d18d77fe1
 
-replace github.com/bepass-org/wireguard-go => github.com/hiddify-com/wireguard-go v0.0.2-alpha.0.20240206112722-83bfc813cc29
+replace github.com/bepass-org/wireguard-go => github.com/hiddify-com/wireguard-go v0.0.2-alpha.0.20240212065415-62301f758cb7