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a63684fcb5
* Consistent license message for all the go files * Fixing the last set of unconsistencies with the license headers * Addressing PR review comments * Fixing busy.go and busy_test.go license header
40 lines
1006 B
Go
40 lines
1006 B
Go
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
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// See LICENSE.txt for license information.
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package config
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import (
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"sync"
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"github.com/mattermost/mattermost-server/v5/model"
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)
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// emitter enables threadsafe registration and broadcasting to configuration listeners
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type emitter struct {
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listeners sync.Map
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}
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// AddListener adds a callback function to invoke when the configuration is modified.
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func (e *emitter) AddListener(listener Listener) string {
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id := model.NewId()
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e.listeners.Store(id, listener)
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return id
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}
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// RemoveListener removes a callback function using an id returned from AddListener.
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func (e *emitter) RemoveListener(id string) {
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e.listeners.Delete(id)
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}
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// invokeConfigListeners synchronously notifies all listeners about the configuration change.
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func (e *emitter) invokeConfigListeners(oldCfg, newCfg *model.Config) {
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e.listeners.Range(func(key, value interface{}) bool {
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listener := value.(Listener)
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listener(oldCfg, newCfg)
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return true
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})
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}
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