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27 lines
370 B
Go
27 lines
370 B
Go
package rw
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import (
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"io"
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"sync/atomic"
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)
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type ReadCounter struct {
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io.Reader
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count int64
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}
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func (r *ReadCounter) Read(p []byte) (n int, err error) {
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n, err = r.Reader.Read(p)
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if n > 0 {
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atomic.AddInt64(&r.count, int64(n))
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}
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return
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}
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func (r *ReadCounter) Count() int64 {
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return r.count
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}
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func (r *ReadCounter) Reset() {
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atomic.StoreInt64(&r.count, 0)
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}
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