mirror of
https://github.com/livekit/livekit.git
synced 2026-03-30 19:55:41 +00:00
95 lines
2.1 KiB
Go
95 lines
2.1 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 routing
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import (
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"sync"
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"github.com/livekit/protocol/livekit"
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"google.golang.org/protobuf/proto"
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)
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const DefaultMessageChannelSize = 200
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type MessageChannel struct {
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connectionID livekit.ConnectionID
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msgChan chan proto.Message
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onClose func()
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isClosed bool
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lock sync.RWMutex
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}
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func NewDefaultMessageChannel(connectionID livekit.ConnectionID) *MessageChannel {
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return NewMessageChannel(connectionID, DefaultMessageChannelSize)
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}
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func NewMessageChannel(connectionID livekit.ConnectionID, size int) *MessageChannel {
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return &MessageChannel{
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connectionID: connectionID,
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// allow some buffer to avoid blocked writes
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msgChan: make(chan proto.Message, size),
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}
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}
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func (m *MessageChannel) OnClose(f func()) {
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m.onClose = f
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}
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func (m *MessageChannel) IsClosed() bool {
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m.lock.RLock()
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defer m.lock.RUnlock()
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return m.isClosed
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}
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func (m *MessageChannel) WriteMessage(msg proto.Message) error {
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m.lock.RLock()
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defer m.lock.RUnlock()
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if m.isClosed {
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return ErrChannelClosed
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}
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select {
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case m.msgChan <- msg:
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// published
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return nil
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default:
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// channel is full
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return ErrChannelFull
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}
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}
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func (m *MessageChannel) ReadChan() <-chan proto.Message {
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return m.msgChan
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}
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func (m *MessageChannel) Close() {
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m.lock.Lock()
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if m.isClosed {
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m.lock.Unlock()
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return
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}
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m.isClosed = true
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close(m.msgChan)
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m.lock.Unlock()
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if m.onClose != nil {
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m.onClose()
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}
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}
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func (m *MessageChannel) ConnectionID() livekit.ConnectionID {
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return m.connectionID
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}
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