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feat(evpn-bridge): intel e2000 vendor plugin
Co-authored-by: Vemula Venkatesh <venkatesh.vemula@intel.com> Co-authored-by: Saikumar Banoth <banoth.saikumar@intel.com> Co-authored-by: Jambekar Vishakha <vishakha.jambekar@intel.com> Co-authored-by: Dimitrios Markou <dimitrios.markou@ericsson.com> Signed-off-by: atulpatel261194 <Atul.Patel@intel.com>
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,63 @@ | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
| // Copyright (c) 2022-2023 Intel Corporation, or its subsidiaries. | ||
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| // Package eventbus handles pub sub | ||
| package eventbus | ||
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|
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| import ( | ||
| "sync" | ||
| ) | ||
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| // EventBus holds the event bus info | ||
| type EventBus struct { | ||
| subscribers map[string][]*Subscriber | ||
| mutex sync.RWMutex | ||
| } | ||
|
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| // Subscriber holds the info for each subscriber | ||
| type Subscriber struct { | ||
| Ch chan interface{} | ||
| Quit chan struct{} | ||
| } | ||
|
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| // NewEventBus initializes an EventBus object | ||
| func NewEventBus() *EventBus { | ||
| return &EventBus{ | ||
| subscribers: make(map[string][]*Subscriber), | ||
| } | ||
| } | ||
|
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| // Subscribe api provides registration of a subscriber to the given eventType | ||
| func (e *EventBus) Subscribe(eventType string) *Subscriber { | ||
| e.mutex.Lock() | ||
| defer e.mutex.Unlock() | ||
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| subscriber := &Subscriber{ | ||
| Ch: make(chan interface{}), | ||
| Quit: make(chan struct{}), | ||
| } | ||
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| e.subscribers[eventType] = append(e.subscribers[eventType], subscriber) | ||
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| return subscriber | ||
| } | ||
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| // Publish api notifies the subscribers with certain eventType | ||
| func (e *EventBus) Publish(eventType string, data interface{}) { | ||
| e.mutex.RLock() | ||
| defer e.mutex.RUnlock() | ||
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| subscribers, ok := e.subscribers[eventType] | ||
| if !ok { | ||
| return | ||
| } | ||
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| for _, sub := range subscribers { | ||
| sub.Ch <- data | ||
| } | ||
| } | ||
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| // Unsubscribe the subscriber, which delete the subscriber(all resources will be washed out) | ||
| func (s *Subscriber) Unsubscribe() { | ||
| close(s.Ch) | ||
| } |
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