lightningnetwork / lnd / 12380303704

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75.0
/buffer/utils.go
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package buffer
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// RecycleSlice zeroes byte slice, making it fresh for another use.










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// Zeroing the buffer using a logarithmic number of calls to the optimized copy










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// method.  Benchmarking shows this to be ~30 times faster than a for loop that










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// sets each index to 0 for ~65KB buffers use for wire messages. Inspired by:










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// https://stackoverflow.com/questions/30614165/is-there-analog-of-memset-in-go










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func RecycleSlice(b []byte) {




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        if len(b) == 0 {




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                return




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        }




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        b[0] = 0




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        for i := 1; i < len(b); i *= 2 {




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                copy(b[i:], b[:i])




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        }




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}
























    

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