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24 lines
362 B
Go
24 lines
362 B
Go
//go:build amd64 || arm64 || ppc64 || ppc64le || riscv64 || s390x
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package fasthttp
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func roundUpForSliceCap(n int) int {
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if n <= 0 {
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return 0
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}
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// Above 100MB, we don't round up as the overhead is too large.
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if n > 100*1024*1024 {
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return n
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}
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x := uint64(n - 1)
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x |= x >> 1
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x |= x >> 2
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x |= x >> 4
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x |= x >> 8
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x |= x >> 16
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return int(x + 1)
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}
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