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implement a STREAM frame retransmission queue in the sendStream

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This commit is contained in:
Marten Seemann 2019-08-29 12:04:31 +07:00
parent dd6e8a7424
commit 93d5d15e3b
3 changed files with 86 additions and 2 deletions
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53
send_stream_test.go
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@ -517,7 +517,7 @@ var _ = Describe("Send Stream", func() {
})
})
Context("stream cancelations", func() {
Context("stream cancellations", func() {
Context("canceling writing", func() {
It("queues a RESET_STREAM frame", func() {
mockSender.EXPECT().queueControlFrame(&wire.ResetStreamFrame{
@ -658,4 +658,55 @@ var _ = Describe("Send Stream", func() {
})
})
})
Context("retransmissions", func() {
It("queues and retrieves frames", func() {
f := &wire.StreamFrame{
Data: []byte("foobar"),
Offset: 0x42,
DataLenPresent: false,
}
mockSender.EXPECT().onHasStreamData(streamID)
str.queueRetransmission(f)
frame, _ := str.popStreamFrame(protocol.MaxByteCount)
Expect(frame).ToNot(BeNil())
Expect(frame.Offset).To(Equal(protocol.ByteCount(0x42)))
Expect(frame.Data).To(Equal([]byte("foobar")))
Expect(frame.DataLenPresent).To(BeTrue())
})
It("splits a retransmission", func() {
f := &wire.StreamFrame{
Data: []byte("foobar"),
Offset: 0x42,
DataLenPresent: false,
}
mockSender.EXPECT().onHasStreamData(streamID)
str.queueRetransmission(f)
frame, hasMoreData := str.popStreamFrame(f.Length(str.version) - 3)
Expect(hasMoreData).To(BeTrue())
Expect(frame).ToNot(BeNil())
Expect(frame.Offset).To(Equal(protocol.ByteCount(0x42)))
Expect(frame.Data).To(Equal([]byte("foo")))
Expect(frame.DataLenPresent).To(BeTrue())
frame, _ = str.popStreamFrame(protocol.MaxByteCount)
Expect(frame).ToNot(BeNil())
Expect(frame.Offset).To(Equal(protocol.ByteCount(0x45)))
Expect(frame.Data).To(Equal([]byte("bar")))
Expect(frame.DataLenPresent).To(BeTrue())
})
It("returns nil if the size is too small", func() {
f := &wire.StreamFrame{
Data: []byte("foobar"),
Offset: 0x42,
DataLenPresent: false,
}
mockSender.EXPECT().onHasStreamData(streamID)
str.queueRetransmission(f)
frame, hasMoreData := str.popStreamFrame(2)
Expect(hasMoreData).To(BeTrue())
Expect(frame).To(BeNil())
})
})
})