remove EntropyAccumulator from QUIC 34 AckHandler

ref #55
This commit is contained in:
Marten Seemann
2016-06-23 11:11:52 +07:00
parent 4952333ae7
commit 5e890a8f61
2 changed files with 0 additions and 64 deletions

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@@ -1,23 +0,0 @@
package ackhandlernew
import "github.com/lucas-clemente/quic-go/protocol"
// EntropyAccumulator accumulates the entropy according to the QUIC docs
type EntropyAccumulator byte
// Add the contribution of the entropy flag of a given packet number
func (e *EntropyAccumulator) Add(packetNumber protocol.PacketNumber, entropyFlag bool) {
if entropyFlag {
(*e) ^= 0x01 << (packetNumber % 8)
}
}
// Subtract the contribution of the entropy flag of a given packet number
func (e *EntropyAccumulator) Subtract(packetNumber protocol.PacketNumber, entropyFlag bool) {
e.Add(packetNumber, entropyFlag)
}
// Get the byte of entropy
func (e *EntropyAccumulator) Get() byte {
return byte(*e)
}

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@@ -1,41 +0,0 @@
package ackhandlernew
import (
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
var _ = Describe("EntropyAccumulator", func() {
It("initializes as zero", func() {
var e EntropyAccumulator
Expect(e.Get()).To(BeZero())
})
Context("Add", func() {
It("adds entropy", func() {
var e EntropyAccumulator
e.Add(9, true)
Expect(e.Get()).To(Equal(byte(0x02)))
})
It("doesn't add entropy for zero entropy flags", func() {
var e EntropyAccumulator
e.Add(9, false)
Expect(e.Get()).To(BeZero())
})
})
Context("Subtract", func() {
It("calculates the correct entropy", func() {
var e1 EntropyAccumulator
e1.Add(3, true)
var e2 EntropyAccumulator
e2.Add(1, true)
e2.Add(3, true)
e2.Subtract(1, true)
Expect(e1).To(Equal(e2))
})
})
})