matterbridge/vendor/github.com/shazow/rateio/writer.go

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2017-12-02 16:24:05 -08:00
package rateio
import "io"
type writer struct {
io.Writer
Limiter
}
// Write writes the contents of p into the buffer.
// Returns ErrRateExceeded error if our specified read is exceeded.
func (w *writer) Write(p []byte) (n int, err error) {
n, err = w.Writer.Write(p)
if err != nil {
return
}
err = w.Limiter.Count(n)
return
}
// NewWriter proxies an io.Writer but keeps track of bytes read based on our Limiter.
func NewWriter(w io.Writer, limiter Limiter) io.Writer {
return &writer{w, limiter}
}