mirror of
https://github.com/livekit/livekit.git
synced 2026-04-04 19:05:58 +00:00
95 lines
1.7 KiB
Go
95 lines
1.7 KiB
Go
// Copyright 2023 LiveKit, Inc.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package pacer
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import (
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"sync"
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"github.com/gammazero/deque"
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"github.com/livekit/protocol/logger"
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)
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type NoQueue struct {
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*Base
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logger logger.Logger
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lock sync.RWMutex
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packets deque.Deque[Packet]
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wake chan struct{}
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isStopped bool
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}
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func NewNoQueue(logger logger.Logger) *NoQueue {
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n := &NoQueue{
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Base: NewBase(logger),
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logger: logger,
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wake: make(chan struct{}, 1),
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}
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n.packets.SetMinCapacity(9)
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go n.sendWorker()
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return n
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}
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func (n *NoQueue) Stop() {
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n.lock.Lock()
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if n.isStopped {
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n.lock.Unlock()
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return
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}
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close(n.wake)
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n.isStopped = true
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n.lock.Unlock()
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}
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func (n *NoQueue) Enqueue(p Packet) {
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n.lock.Lock()
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defer n.lock.Unlock()
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n.packets.PushBack(p)
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if n.packets.Len() == 1 && !n.isStopped {
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select {
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case n.wake <- struct{}{}:
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default:
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}
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}
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}
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func (n *NoQueue) sendWorker() {
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for {
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<-n.wake
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for {
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n.lock.Lock()
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if n.isStopped {
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n.lock.Unlock()
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return
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}
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if n.packets.Len() == 0 {
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n.lock.Unlock()
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break
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}
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p := n.packets.PopFront()
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n.lock.Unlock()
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n.Base.SendPacket(&p)
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}
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}
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}
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// ------------------------------------------------
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