From d8714e64e400ef873c2adc4d929a07d7890727b9 Mon Sep 17 00:00:00 2001
From: Miek Gieben <miek@miek.nl>
Date: Thu, 14 Sep 2017 09:36:06 +0100
Subject: Remove the word middleware (#1067)

* Rename middleware to plugin

first pass; mostly used 'sed', few spots where I manually changed
text.

This still builds a coredns binary.

* fmt error

* Rename AddMiddleware to AddPlugin

* Readd AddMiddleware to remain backwards compat
---
 plugin/proxy/exchanger.go | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 plugin/proxy/exchanger.go

(limited to 'plugin/proxy/exchanger.go')

diff --git a/plugin/proxy/exchanger.go b/plugin/proxy/exchanger.go
new file mode 100644
index 000000000..b98a687e7
--- /dev/null
+++ b/plugin/proxy/exchanger.go
@@ -0,0 +1,22 @@
+package proxy
+
+import (
+	"context"
+
+	"github.com/coredns/coredns/request"
+	"github.com/miekg/dns"
+)
+
+// Exchanger is an interface that specifies a type implementing a DNS resolver that
+// can use whatever transport it likes.
+type Exchanger interface {
+	Exchange(ctx context.Context, addr string, state request.Request) (*dns.Msg, error)
+	Protocol() string
+
+	// Transport returns the only transport protocol used by this Exchanger or "".
+	// If the return value is "", Exchange must use `state.Proto()`.
+	Transport() string
+
+	OnStartup(*Proxy) error
+	OnShutdown(*Proxy) error
+}
-- 
cgit v1.2.3