mirror of
https://github.com/openziti/ziti.git
synced 2026-10-13 15:51:21 +00:00
Michael Quigley
62 lines
1.5 KiB
Go
62 lines
1.5 KiB
Go
/*
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Copyright 2019 NetFoundry, Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package xgress
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import (
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"github.com/emirpasic/gods/trees/btree"
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"github.com/emirpasic/gods/utils"
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)
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type TransmitBuffer struct {
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tree *btree.Tree
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sequence int32
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}
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func NewTransmitBuffer() *TransmitBuffer {
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return &TransmitBuffer{
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tree: btree.NewWith(10240, utils.Int32Comparator),
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sequence: -1,
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}
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}
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func (buffer *TransmitBuffer) ReceiveUnordered(payload *Payload) {
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if payload.GetSequence() > buffer.sequence {
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buffer.tree.Put(payload.GetSequence(), payload)
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}
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}
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func (buffer *TransmitBuffer) ReadyForTransmit() []*Payload {
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var ready []*Payload
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if buffer.tree.LeftKey() != nil {
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nextSequence := buffer.tree.LeftKey().(int32)
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for nextSequence == buffer.sequence+1 {
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payload := buffer.tree.LeftValue().(*Payload)
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buffer.tree.Remove(nextSequence)
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buffer.sequence = nextSequence
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ready = append(ready, payload)
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if buffer.tree.Size() > 0 {
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nextSequence = buffer.tree.LeftKey().(int32)
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}
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}
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}
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return ready
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}
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