| package main |
| |
| import ( |
| "fmt" |
| "runtime" |
| "time" |
| ) |
| |
| func main() { |
| runtime.GOMAXPROCS(3) |
| |
| producerSequence := NewSequence() |
| consumerSequence1 := NewSequence() |
| consumerSequence2 := NewSequence() |
| |
| producerBarrier := NewBarrier(producerSequence) |
| consumerBarrier := NewBarrier(consumerSequence1, consumerSequence2) |
| |
| sequencer := NewSingleProducerSequencer(producerSequence, RingSize, consumerBarrier) |
| go consume(producerBarrier, producerSequence, consumerSequence1) |
| go consume(producerBarrier, producerSequence, consumerSequence2) |
| |
| started := time.Now() |
| for i := int64(0); i < 10; i++ { |
| ticket := sequencer.Next(1) |
| ringBuffer[ticket&RingMask] = ticket |
| sequencer.Publish(ticket) |
| if ticket%Mod == 0 && ticket > 0 { |
| finished := time.Now() |
| elapsed := finished.Sub(started) |
| fmt.Println(ticket, elapsed) |
| started = time.Now() |
| } |
| } |
| |
| time.Sleep(time.Millisecond * 100) |
| } |
| |
| func consume(barrier Barrier, source, sequence *Sequence) { |
| worker := NewWorker(barrier, TestHandler{}, source, sequence) |
| |
| for { |
| worker.Process() |
| } |
| } |
| |
| const Mod = 1000000 * 100 // 1 million * 10 |
| const RingSize = 2 |
| const RingMask = RingSize - 1 |
| |
| var ringBuffer [RingSize]int64 |
| |
| type TestHandler struct{} |
| |
| func (this TestHandler) Consume(sequence, remaining int64) { |
| message := ringBuffer[sequence&RingMask] |
| if message != sequence { |
| fmt.Printf("ERROR Consumer:: Sequence: %d, Message: %d\n", sequence, message) |
| panic(fmt.Sprintf("Consumer:: Sequence: %d, Message: %d\n", sequence, message)) |
| } |
| |
| if sequence%Mod == 0 { |
| //fmt.Printf("Consumer:: Sequence: %d, Message: %d\n", sequence, message) |
| } |
| } |