func run(messages []sqs.Message) {
numMessages := len(messages)
log.Debugln("worker: Received", numMessages, " tasks")
var wg sync.WaitGroup
wg.Add(numMessages)
for i := range messages {
go func(m *sqs.Message) {
// launch goroutine
defer func() {
if err := recover(); err != nil {
trace := make([]byte, 2048)
runtime.Stack(trace, true)
log.Criticalln("worker:", err, string(trace))
}
wg.Done()
}()
if err := handleMessage(m); err != nil {
log.Errorln("worker:", err)
}
}(&messages[i])
}
wg.Wait()
}
// Task runner daemon loop
func taskRunner() {
time.Sleep(time.Second * 10)
log.Debugln("worker: Start polling")
for {
resp, err := queue.ReceiveMessage(batchSize)
if err != nil {
log.Errorln(err)
continue
}
messages := resp.Messages
if len(messages) > 0 {
run(messages)
} else {
time.Sleep(time.Millisecond * 500)
}
}
log.Debugln("worker: Leaving polling")
}