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delay transmission of small packets to wait for new data

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fixes #9, fixes #61
This commit is contained in:
Marten Seemann
2016-05-13 17:06:30 +07:00
parent c0c7be16e3
commit ba799cef01
4 changed files with 137 additions and 0 deletions
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69
session_test.go
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@@ -1,6 +1,7 @@
package quic
import (
"bytes"
"errors"
"io"
"runtime"
@@ -379,6 +380,74 @@ var _ = Describe("Session", func() {
session.Run()
Expect(session.sendingScheduled).To(Receive())
})
Context("bundling of small packets", func() {
It("bundles two small frames into one packet", func() {
go session.Run()
session.QueueStreamFrame(&frames.StreamFrame{
StreamID: 5,
Data: []byte("foobar1"),
})
session.QueueStreamFrame(&frames.StreamFrame{
StreamID: 5,
Data: []byte("foobar2"),
})
time.Sleep(10 * time.Millisecond)
Expect(conn.written).To(HaveLen(1))
})
It("sends out two big frames in two packet", func() {
go session.Run()
session.QueueStreamFrame(&frames.StreamFrame{
StreamID: 5,
Data: bytes.Repeat([]byte{'e'}, int(protocol.SmallPacketPayloadSizeThreshold+50)),
})
session.QueueStreamFrame(&frames.StreamFrame{
StreamID: 5,
Data: bytes.Repeat([]byte{'f'}, int(protocol.SmallPacketPayloadSizeThreshold+50)),
})
time.Sleep(10 * time.Millisecond)
Expect(conn.written).To(HaveLen(2))
})
It("sends out two small frames that are written to long after one another into two packet", func() {
go session.Run()
session.QueueStreamFrame(&frames.StreamFrame{
StreamID: 5,
Data: []byte("foobar1"),
})
time.Sleep(10 * protocol.SmallPacketSendDelay)
session.QueueStreamFrame(&frames.StreamFrame{
StreamID: 5,
Data: []byte("foobar2"),
})
time.Sleep(10 * time.Millisecond)
Expect(conn.written).To(HaveLen(2))
})
It("sends a queued ACK frame only once", func() {
go session.Run()
packetNumber := protocol.PacketNumber(0x1337)
session.receivedPacketHandler.ReceivedPacket(packetNumber, true)
session.QueueStreamFrame(&frames.StreamFrame{
StreamID: 5,
Data: []byte("foobar1"),
})
time.Sleep(10 * protocol.SmallPacketSendDelay)
session.QueueStreamFrame(&frames.StreamFrame{
StreamID: 5,
Data: []byte("foobar2"),
})
time.Sleep(10 * time.Millisecond)
Expect(conn.written).To(HaveLen(2))
Expect(conn.written[0]).To(ContainSubstring(string([]byte{0x37, 0x13})))
Expect(conn.written[1]).ToNot(ContainSubstring(string([]byte{0x37, 0x13})))
})
})
})
It("closes when crypto stream errors", func() {