github.com/sberex/go-sberex@v1.8.2-0.20181113200658-ed96ac38f7d7/event/example_test.go (about) 1 // This file is part of the go-sberex library. The go-sberex library is 2 // free software: you can redistribute it and/or modify it under the terms 3 // of the GNU Lesser General Public License as published by the Free 4 // Software Foundation, either version 3 of the License, or (at your option) 5 // any later version. 6 // 7 // The go-sberex library is distributed in the hope that it will be useful, 8 // but WITHOUT ANY WARRANTY; without even the implied warranty of 9 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser 10 // General Public License <http://www.gnu.org/licenses/> for more details. 11 12 package event 13 14 import "fmt" 15 16 func ExampleTypeMux() { 17 type someEvent struct{ I int } 18 type otherEvent struct{ S string } 19 type yetAnotherEvent struct{ X, Y int } 20 21 var mux TypeMux 22 23 // Start a subscriber. 24 done := make(chan struct{}) 25 sub := mux.Subscribe(someEvent{}, otherEvent{}) 26 go func() { 27 for event := range sub.Chan() { 28 fmt.Printf("Received: %#v\n", event.Data) 29 } 30 fmt.Println("done") 31 close(done) 32 }() 33 34 // Post some events. 35 mux.Post(someEvent{5}) 36 mux.Post(yetAnotherEvent{X: 3, Y: 4}) 37 mux.Post(someEvent{6}) 38 mux.Post(otherEvent{"whoa"}) 39 40 // Stop closes all subscription channels. 41 // The subscriber goroutine will print "done" 42 // and exit. 43 mux.Stop() 44 45 // Wait for subscriber to return. 46 <-done 47 48 // Output: 49 // Received: event.someEvent{I:5} 50 // Received: event.someEvent{I:6} 51 // Received: event.otherEvent{S:"whoa"} 52 // done 53 }