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Code Issues Releases Wiki Activity

improve parse address performance

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This commit is contained in:
Darien Raymond 2018-11-05 01:16:06 +01:00
parent 021cd3b5b7
commit 21e9a04dca
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GPG Key ID: 7251FFA14BB18169
2 changed files with 27 additions and 1 deletions
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10
common/net/address.go
View File

@ -70,6 +70,10 @@ type Address interface {
String() string // String representation of this Address
}
func isAlphaNum(c byte) bool {
return (c >= '0' && c <= '9') || (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
}
// ParseAddress parses a string into an Address. The return value will be an IPAddress when
// the string is in the form of IPv4 or IPv6 address, or a DomainAddress otherwise.
func ParseAddress(addr string) Address {
@ -77,8 +81,12 @@ func ParseAddress(addr string) Address {
lenAddr := len(addr)
if lenAddr > 0 && addr[0] == '[' && addr[lenAddr-1] == ']' {
addr = addr[1 : lenAddr-1]
lenAddr -= 2
}
if lenAddr > 0 && (!isAlphaNum(addr[0]) || !isAlphaNum(addr[len(addr)-1])) {
addr = strings.TrimSpace(addr)
}
addr = strings.TrimSpace(addr)
ip := net.ParseIP(addr)
if ip != nil {

18
common/net/address_test.go
View File

@ -101,3 +101,21 @@ func TestIPOrDomain(t *testing.T) {
assert(NewIPOrDomain(ParseAddress("8.8.8.8")).AsAddress(), Equals, ParseAddress("8.8.8.8"))
assert(NewIPOrDomain(ParseAddress("2001:4860:0:2001::68")).AsAddress(), Equals, ParseAddress("2001:4860:0:2001::68"))
}
func BenchmarkParseAddressIPv4(b *testing.B) {
for i := 0; i < b.N; i++ {
_ = ParseAddress("8.8.8.8")
}
}
func BenchmarkParseAddressIPv6(b *testing.B) {
for i := 0; i < b.N; i++ {
_ = ParseAddress("2001:4860:0:2001::68")
}
}
func BenchmarkParseAddressDomain(b *testing.B) {
for i := 0; i < b.N; i++ {
_ = ParseAddress("v2ray.com")
}
}