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lukaszraczyloGitHubCopilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>* Add redis support for distributed caching * Move towards the self-provided Redis connection pool and RESP protocol implementation. Official redis client library won't work with yaegi. * fixup! Move towards the self-provided Redis connection pool and RESP protocol implementation. Official redis client library won't work with yaegi. * fixup! fixup! Move towards the self-provided Redis connection pool and RESP protocol implementation. Official redis client library won't work with yaegi. * fixup! fixup! fixup! Move towards the self-provided Redis connection pool and RESP protocol implementation. Official redis client library won't work with yaegi. * fixup! fixup! fixup! fixup! Move towards the self-provided Redis connection pool and RESP protocol implementation. Official redis client library won't work with yaegi. * fixup! fixup! fixup! fixup! fixup! Move towards the self-provided Redis connection pool and RESP protocol implementation. Official redis client library won't work with yaegi. * ... and another all nighter. * fixup! ... and another all nighter. * fixup! fixup! ... and another all nighter. * fixup! fixup! fixup! ... and another all nighter. * Resolve issue #85 by adding ability to set custom claims in JWT tokens * Remove redundant validation in auth middleware ( issue #89 ) * Add ability to set cookie prefix for session cookies ( #87 ) * fixup! Add ability to set cookie prefix for session cookies ( #87 ) * Add ability to set cookie max age - issue #91 * Potential fix for code scanning alert no. 10: Size computation for allocation may overflow Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com> * fixup! Merge main into 0.8.0-redis: resolve conflicts --------- Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>
70 lines
1.5 KiB
Go
70 lines
1.5 KiB
Go
package hyperloglog
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import (
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"github.com/alicebob/miniredis/v2/metro"
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"math"
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"math/bits"
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)
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var hash = hashFunc
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func beta14(ez float64) float64 {
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zl := math.Log(ez + 1)
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return -0.370393911*ez +
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0.070471823*zl +
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0.17393686*math.Pow(zl, 2) +
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0.16339839*math.Pow(zl, 3) +
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-0.09237745*math.Pow(zl, 4) +
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0.03738027*math.Pow(zl, 5) +
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-0.005384159*math.Pow(zl, 6) +
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0.00042419*math.Pow(zl, 7)
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}
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func beta16(ez float64) float64 {
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zl := math.Log(ez + 1)
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return -0.37331876643753059*ez +
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-1.41704077448122989*zl +
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0.40729184796612533*math.Pow(zl, 2) +
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1.56152033906584164*math.Pow(zl, 3) +
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-0.99242233534286128*math.Pow(zl, 4) +
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0.26064681399483092*math.Pow(zl, 5) +
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-0.03053811369682807*math.Pow(zl, 6) +
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0.00155770210179105*math.Pow(zl, 7)
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}
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func alpha(m float64) float64 {
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switch m {
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case 16:
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return 0.673
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case 32:
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return 0.697
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case 64:
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return 0.709
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}
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return 0.7213 / (1 + 1.079/m)
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}
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func getPosVal(x uint64, p uint8) (uint64, uint8) {
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i := bextr(x, 64-p, p) // {x63,...,x64-p}
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w := x<<p | 1<<(p-1) // {x63-p,...,x0}
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rho := uint8(bits.LeadingZeros64(w)) + 1
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return i, rho
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}
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func linearCount(m uint32, v uint32) float64 {
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fm := float64(m)
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return fm * math.Log(fm/float64(v))
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}
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func bextr(v uint64, start, length uint8) uint64 {
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return (v >> start) & ((1 << length) - 1)
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}
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func bextr32(v uint32, start, length uint8) uint32 {
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return (v >> start) & ((1 << length) - 1)
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}
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func hashFunc(e []byte) uint64 {
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return metro.Hash64(e, 1337)
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}
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