Brendan LE GLAUNEC
49 lines
1.4 KiB
Go
49 lines
1.4 KiB
Go
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package actor
|
|
|
|
// Sub/Unsub event type
|
|
const (
|
|
SubscribeEvent = "subscribe"
|
|
UnsubscribeEvent = "unsubscribe"
|
|
)
|
|
|
|
// Subscription contains a sub/unsub event
|
|
type Subscription struct {
|
|
Command string
|
|
Channel string
|
|
SubscribersCount uint
|
|
}
|
|
|
|
// Publication contains a publish event
|
|
type Publication struct {
|
|
Channel string
|
|
Data string
|
|
}
|
|
|
|
// PubSub is a generic interface for publishing data to subscribers using channels
|
|
// It exposes subscriptions events so the controller can create/delete
|
|
// data sources depending on the channels users subscribe to.
|
|
// ex: launch a camera stream only when users subscribe to it
|
|
type PubSub interface {
|
|
Run()
|
|
Sub() <-chan *Subscription
|
|
Pub() chan<- *Publication
|
|
}
|
|
|
|
// ChannelAccessChecker allows to check for accesses on a given channel
|
|
type ChannelAccessChecker interface {
|
|
CheckAccess(channel, accessToken string) bool
|
|
ClearCache(accessToken string)
|
|
}
|