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Before this change, if the file grew after we read it, but before we noted its size, then tailing could misbehave.
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,15 @@ | ||
package m | ||
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import "io" | ||
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// Pass-through reader that counts the number of bytes read. | ||
type inspectionReader struct { | ||
base io.Reader | ||
bytesCount int64 | ||
} | ||
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func (r *inspectionReader) Read(p []byte) (n int, err error) { | ||
n, err = r.base.Read(p) | ||
r.bytesCount += int64(n) | ||
return | ||
} |
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