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Cache elements of State

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Cache the size and the do bit whenever someone asked for it. We can

probably add more:



PASS

BenchmarkStateDo-4  	100000000	        11.9 ns/op

BenchmarkStateSize-4	 5000000	       265 ns/op

ok  	github.com/miekg/coredns/middleware	2.828s



PASS

BenchmarkStateDo-4  	1000000000	         2.86 ns/op

BenchmarkStateSize-4	500000000	         3.10 ns/op

ok  	github.com/miekg/coredns/middleware	5.032s



This PR also includes some testing cleanups as well.
This commit is contained in:
Miek Gieben
2016-04-04 08:19:06 +01:00
parent b3b6fe48f6
commit 84dfdab584
19 changed files with 170 additions and 73 deletions
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22
middleware/testing/helpers.go
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@@ -3,8 +3,6 @@ package testing
import (
"testing"
"github.com/miekg/coredns/middleware"
"github.com/miekg/dns"
"golang.org/x/net/context"
)
@@ -199,11 +197,27 @@ func Section(t *testing.T, tc Case, sect Sect, rr []dns.RR) bool {
return true
}
func ErrorHandler() middleware.Handler {
return middleware.HandlerFunc(func(ctx context.Context, w dns.ResponseWriter, r *dns.Msg) (int, error) {
func ErrorHandler() Handler {
return HandlerFunc(func(ctx context.Context, w dns.ResponseWriter, r *dns.Msg) (int, error) {
m := new(dns.Msg)
m.SetRcode(r, dns.RcodeServerFailure)
w.WriteMsg(m)
return dns.RcodeServerFailure, nil
})
}
// Copied here to prevent an import cycle.
type (
// HandlerFunc is a convenience type like dns.HandlerFunc, except
// ServeDNS returns an rcode and an error.
HandlerFunc func(context.Context, dns.ResponseWriter, *dns.Msg) (int, error)
Handler interface {
ServeDNS(context.Context, dns.ResponseWriter, *dns.Msg) (int, error)
}
)
// ServeDNS implements the Handler interface.
func (f HandlerFunc) ServeDNS(ctx context.Context, w dns.ResponseWriter, r *dns.Msg) (int, error) {
return f(ctx, w, r)
}