e81ccc406b
Change all license headers to comply with REUSE specification. Fix #16132 Co-authored-by: flynnnnnnnnnn <flynnnnnnnnnn@github> Co-authored-by: John Olheiser <john.olheiser@gmail.com>
89 lines
1.8 KiB
Go
89 lines
1.8 KiB
Go
// Copyright 2020 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package eventsource
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import (
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"sync"
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)
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// Manager manages the eventsource Messengers
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type Manager struct {
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mutex sync.Mutex
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messengers map[int64]*Messenger
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connection chan struct{}
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}
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var manager *Manager
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func init() {
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manager = &Manager{
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messengers: make(map[int64]*Messenger),
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connection: make(chan struct{}, 1),
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}
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}
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// GetManager returns a Manager and initializes one as singleton if there's none yet
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func GetManager() *Manager {
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return manager
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}
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// Register message channel
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func (m *Manager) Register(uid int64) <-chan *Event {
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m.mutex.Lock()
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messenger, ok := m.messengers[uid]
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if !ok {
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messenger = NewMessenger(uid)
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m.messengers[uid] = messenger
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}
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select {
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case m.connection <- struct{}{}:
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default:
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}
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m.mutex.Unlock()
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return messenger.Register()
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}
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// Unregister message channel
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func (m *Manager) Unregister(uid int64, channel <-chan *Event) {
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m.mutex.Lock()
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defer m.mutex.Unlock()
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messenger, ok := m.messengers[uid]
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if !ok {
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return
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}
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if messenger.Unregister(channel) {
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delete(m.messengers, uid)
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}
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}
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// UnregisterAll message channels
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func (m *Manager) UnregisterAll() {
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m.mutex.Lock()
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defer m.mutex.Unlock()
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for _, messenger := range m.messengers {
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messenger.UnregisterAll()
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}
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m.messengers = map[int64]*Messenger{}
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}
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// SendMessage sends a message to a particular user
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func (m *Manager) SendMessage(uid int64, message *Event) {
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m.mutex.Lock()
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messenger, ok := m.messengers[uid]
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m.mutex.Unlock()
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if ok {
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messenger.SendMessage(message)
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}
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}
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// SendMessageBlocking sends a message to a particular user
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func (m *Manager) SendMessageBlocking(uid int64, message *Event) {
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m.mutex.Lock()
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messenger, ok := m.messengers[uid]
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m.mutex.Unlock()
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if ok {
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messenger.SendMessageBlocking(message)
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}
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}
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