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// Copyright 2014 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum 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.
//
// The go-ethereum 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package event
import "fmt"
func ExampleTypeMux() {
type someEvent struct{ I int }
type otherEvent struct{ S string }
type yetAnotherEvent struct{ X, Y int }
var mux TypeMux
// Start a subscriber.
done := make(chan struct{})
sub := mux.Subscribe(someEvent{}, otherEvent{})
go func() {
for event := range sub.Chan() {
fmt.Printf("Received: %#v\n", event.Data)
}
fmt.Println("done")
close(done)
}()
// Post some events.
mux.Post(someEvent{5})
mux.Post(yetAnotherEvent{X: 3, Y: 4})
mux.Post(someEvent{6})
mux.Post(otherEvent{"whoa"})
// Stop closes all subscription channels.
// The subscriber goroutine will print "done"
// and exit.
mux.Stop()
// Wait for subscriber to return.
<-done
// Output:
// Received: event.someEvent{I:5}
// Received: event.someEvent{I:6}
// Received: event.otherEvent{S:"whoa"}
// done
}
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