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driver.go
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driver.go
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package wifitriggers
import (
"context"
"log"
"time"
)
type Driver struct {
APReader APReader
BindingChain BindingChain
Interval time.Duration
}
func tickDuringContext(ctx context.Context, d time.Duration) <-chan time.Time {
t := time.NewTicker(d)
go func() {
<-ctx.Done()
t.Stop()
}()
return t.C
}
func (d *Driver) Run(ctx context.Context) error {
for _ = range tickDuringContext(ctx, d.Interval) {
err := func() error {
ctx, cancel := context.WithTimeout(ctx, d.Interval)
defer cancel()
c, err := d.APReader.ConnectedClients(ctx)
// Treat errors as nobody connected for now.
// TODO(jonnrb): Introduce some sort of transient error state.
if err != nil {
log.Println("Could not get connected clients from AP:", err)
}
if err := d.BindingChain(c)(ctx); err != nil {
log.Println("Error running actions:", err)
}
return nil
}()
if err != nil {
return err
}
}
return ctx.Err()
}