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types.go
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types.go
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// This file is part of the Smart Home
// Program complex distribution https://github.com/e154/smart-home
// Copyright (C) 2016-2021, Filippov Alex
//
// This library is free software: you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 3 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Library General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library. If not, see
// <https://www.gnu.org/licenses/>.
package bus
import (
"reflect"
)
// Bus implements publish/subscribe messaging paradigm
type Bus interface {
// Publish publishes arguments to the given topic subscribers
// Publish block only when the buffer of one of the subscribers is full.
Publish(topic string, args ...interface{})
// Close unsubscribe all subscribers from given topic
Close(topic string)
// Subscribe subscribes to the given topic
Subscribe(topic string, fn interface{}, options ...interface{}) error
// Unsubscribe handler from the given topic
Unsubscribe(topic string, fn interface{}) error
// Stat ...
Stat() (stats Stats, err error)
// Purge ...
Purge()
}
type handler struct {
callback reflect.Value
queue chan []reflect.Value
}
type subscribers struct {
handlers []*handler
lastMsg []reflect.Value
}
// EventType ...
type EventType string
const (
// TopicEntities ...
TopicEntities = "entities"
// TopicPlugins ...
TopicPlugins = "plugins"
// TopicAutomation ...
TopicAutomation = "automation"
)