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|
//
// dolmetschctl
//
//
// Copyright (C) 2019 Christian Pointner <equinox@spreadspace.org>
//
// This file is part of dolmetschctl.
//
// dolmetschctl is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// any later version.
//
// dolmetschctl 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with dolmetschctl. If not, see <http://www.gnu.org/licenses/>.
//
package main
import (
"time"
"spreadspace.org/dolmetschctl/pkg/mixer"
)
type Language string
type StateMachine struct {
mixer *mixer.Mixer
selectLangCh chan Language
quitCh chan bool
exitedCh chan struct{}
}
func NewStateMachine(m *mixer.Mixer) (*StateMachine, error) {
sm := &StateMachine{mixer: m}
sm.selectLangCh = make(chan Language, 10)
sm.quitCh = make(chan bool, 1)
sm.exitedCh = make(chan struct{})
return sm, nil
}
func (sm *StateMachine) selectLang(l Language) {
sm.mixer.UnMute(0x24)
sm.mixer.SetLevel(0x24, 42)
time.Sleep(2 * time.Second)
sm.mixer.Mute(0x24)
sm.mixer.SetLevel(0x24, mixer.FaderLevel0db)
}
func (sm *StateMachine) run() {
defer close(sm.exitedCh)
for {
select {
case l := <-sm.selectLangCh:
sm.selectLang(l)
case <-sm.quitCh:
return
}
}
}
func (sm *StateMachine) Start() {
go sm.run()
}
func (sm *StateMachine) SelectLanguage(l Language) {
sm.selectLangCh <- l
}
func (sm *StateMachine) Shutdown() {
select {
case sm.quitCh <- true:
default:
}
<-sm.exitedCh
}
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