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4cd82b6802
These are the vendor files needed for Prometheus support. I have not been able to figure out how to do this properly with gopkg.
46 lines
1.1 KiB
Go
46 lines
1.1 KiB
Go
package datacounter
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import (
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"bufio"
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"net"
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"net/http"
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"sync/atomic"
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)
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// ResponseWriterCounter is counter for http.ResponseWriter
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type ResponseWriterCounter struct {
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http.ResponseWriter
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count uint64
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writer http.ResponseWriter
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}
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// NewResponseWriterCounter function create new ResponseWriterCounter
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func NewResponseWriterCounter(rw http.ResponseWriter) *ResponseWriterCounter {
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return &ResponseWriterCounter{
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writer: rw,
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}
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}
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func (counter *ResponseWriterCounter) Write(buf []byte) (int, error) {
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n, err := counter.writer.Write(buf)
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atomic.AddUint64(&counter.count, uint64(n))
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return n, err
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}
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func (counter *ResponseWriterCounter) Header() http.Header {
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return counter.writer.Header()
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}
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func (counter *ResponseWriterCounter) WriteHeader(statusCode int) {
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counter.writer.WriteHeader(statusCode)
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}
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func (counter *ResponseWriterCounter) Hijack() (net.Conn, *bufio.ReadWriter, error) {
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return counter.writer.(http.Hijacker).Hijack()
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}
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// Count function return counted bytes
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func (counter *ResponseWriterCounter) Count() uint64 {
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return atomic.LoadUint64(&counter.count)
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}
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