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zeekayandHanzo Dev
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Source files keep their SPDX-License-Identifier and Hanzo copyright line; the Gitea, Gogs and LFS Test Server copyrights they used to repeat now live once in NOTICE, alongside LICENSE. The header lint accepts any copyright line above the SPDX line, so it no longer demands an upstream one. Co-authored-by: Hanzo Dev <[email protected]>
78 lines
1.7 KiB
Go
78 lines
1.7 KiB
Go
// Copyright 2026 Hanzo AI, Inc. All rights reserved.
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// SPDX-License-Identifier: MIT
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package eventsource
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import "sync"
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// Messenger is a per uid message store
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type Messenger struct {
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mutex sync.Mutex
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uid int64
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channels []chan *Event
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}
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// NewMessenger creates a messenger for a particular uid
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func NewMessenger(uid int64) *Messenger {
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return &Messenger{
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uid: uid,
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channels: [](chan *Event){},
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}
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}
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// Register returns a new chan []byte
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func (m *Messenger) Register() <-chan *Event {
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m.mutex.Lock()
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// TODO: Limit the number of messengers per uid
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channel := make(chan *Event, 1)
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m.channels = append(m.channels, channel)
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m.mutex.Unlock()
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return channel
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}
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// Unregister removes the provider chan []byte
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func (m *Messenger) Unregister(channel <-chan *Event) bool {
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m.mutex.Lock()
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defer m.mutex.Unlock()
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for i, toRemove := range m.channels {
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if channel == toRemove {
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m.channels = append(m.channels[:i], m.channels[i+1:]...)
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close(toRemove)
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break
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}
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}
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return len(m.channels) == 0
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}
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// UnregisterAll removes all chan []byte
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func (m *Messenger) UnregisterAll() {
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m.mutex.Lock()
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defer m.mutex.Unlock()
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for _, channel := range m.channels {
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close(channel)
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}
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m.channels = nil
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}
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// SendMessage sends the message to all registered channels
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func (m *Messenger) SendMessage(message *Event) {
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m.mutex.Lock()
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defer m.mutex.Unlock()
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for i := range m.channels {
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channel := m.channels[i]
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select {
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case channel <- message:
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default:
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}
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}
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}
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// SendMessageBlocking sends the message to all registered channels and ensures it gets sent
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func (m *Messenger) SendMessageBlocking(message *Event) {
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m.mutex.Lock()
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defer m.mutex.Unlock()
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for i := range m.channels {
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m.channels[i] <- message
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}
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}
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