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31 lines
823 B
Go
31 lines
823 B
Go
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package metrics
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import (
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"runtime"
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"github.com/coredns/coredns/plugin/pkg/dnstest"
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"github.com/miekg/dns"
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)
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// Recorder is a dnstest.Recorder specific to the metrics plugin.
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type Recorder struct {
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*dnstest.Recorder
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// CallerN holds the string return value of the call to runtime.Caller(N+1)
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Caller [3]string
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}
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// NewRecorder makes and returns a new Recorder.
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func NewRecorder(w dns.ResponseWriter) *Recorder { return &Recorder{Recorder: dnstest.NewRecorder(w)} }
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// WriteMsg records the status code and calls the
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// underlying ResponseWriter's WriteMsg method.
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func (r *Recorder) WriteMsg(res *dns.Msg) error {
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_, r.Caller[0], _, _ = runtime.Caller(1)
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_, r.Caller[1], _, _ = runtime.Caller(2)
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_, r.Caller[2], _, _ = runtime.Caller(3)
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r.Len += res.Len()
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r.Msg = res
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return r.ResponseWriter.WriteMsg(res)
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}
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