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26 lines
514 B
Go
26 lines
514 B
Go
package rateio
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import "io"
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type writer struct {
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io.Writer
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Limiter
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}
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// Write writes the contents of p into the buffer.
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// Returns ErrRateExceeded error if our specified read is exceeded.
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func (w *writer) Write(p []byte) (n int, err error) {
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n, err = w.Writer.Write(p)
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if err != nil {
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return
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}
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err = w.Limiter.Count(n)
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return
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}
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// NewWriter proxies an io.Writer but keeps track of bytes read based on our Limiter.
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func NewWriter(w io.Writer, limiter Limiter) io.Writer {
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return &writer{w, limiter}
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}
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