101 lines
1.2 KiB
Go
101 lines
1.2 KiB
Go
package led
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import (
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"sync"
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"time"
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)
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const (
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DurationFlick = 40 * time.Millisecond
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)
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type LEDController struct {
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led1 bool
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led2 bool
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mu1 sync.Mutex
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mu2 sync.Mutex
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}
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func NewLEDController() *LEDController {
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var controller LEDController
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controller.led1 = false
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controller.led2 = false
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return &controller
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}
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// turn both off
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func (c *LEDController) Off() {
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c.led1 = false
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c.led2 = false
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c.Disable1()
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c.Disable2()
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}
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func (c *LEDController) Enable1() {
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if c.led1 {
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return
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}
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c.led1 = true
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// gpio code to turn LED 1 on
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}
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func (c *LEDController) Enable2() {
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if c.led2 {
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return
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}
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c.led2 = true
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// gpio code to turn LED 2 on
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}
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func (c *LEDController) Disable1() {
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if !c.led1 {
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return
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}
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c.led1 = false
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// gpio code to turn LED 1 off
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}
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func (c *LEDController) Disable2() {
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if !c.led2 {
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return
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}
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c.led2 = false
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// gpio code to turn LED 2 off
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}
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func (c *LEDController) Flick1() {
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c.mu1.Lock()
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defer c.mu1.Unlock()
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// assume it is off
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c.Enable1()
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time.Sleep(DurationFlick)
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c.Disable1()
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}
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func (c *LEDController) Flick2() {
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c.mu2.Lock()
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defer c.mu2.Unlock()
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// assume it is off
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c.Enable2()
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time.Sleep(DurationFlick)
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c.Disable2()
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}
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