// Run the multiplexer.
// Fetch messags from the consumers and pass them to all producers.
func (plex multiplexer) run() {
if len(plex.consumers) == 0 {
Log.Error.Print("No consumers configured.")
Log.SetWriter(os.Stdout)
return // ### return, nothing to do ###
}
if len(plex.producers) == 0 {
Log.Error.Print("No producers configured.")
Log.SetWriter(os.Stdout)
return // ### return, nothing to do ###
}
defer plex.shutdown()
// Launch producers
plex.state = multiplexerStateStartProducers
for _, producer := range plex.producers {
producer := producer
Log.Debug.Print("Starting ", reflect.TypeOf(producer))
go shared.DontPanic(func() {
producer.Produce(plex.producerWorker)
})
}
// If there are intenal log listeners switch to stream mode
if core.StreamRegistry.IsStreamRegistered(core.LogInternalStreamID) {
Log.Debug.Print("Binding log to ", reflect.TypeOf(plex.consumers[0]))
Log.SetWriter(plex.consumers[0].(*core.LogConsumer))
} else {
Log.SetWriter(os.Stdout)
}
// Launch consumers
plex.state = multiplexerStateStartConsumers
for _, consumer := range plex.consumers {
consumer := consumer
Log.Debug.Print("Starting ", reflect.TypeOf(consumer))
go shared.DontPanic(func() {
consumer.Consume(plex.consumerWorker)
})
}
// Main loop - wait for exit
// Apache is using SIG_USR1 in some cases to signal child processes.
// This signal is not available on windows
plex.signal = newSignalHandler()
Log.Note.Print("We be nice to them, if they be nice to us. (startup)")
measure := time.Now()
timer := time.NewTicker(5 * time.Second)
for {
select {
case <-timer.C:
duration := time.Since(measure)
measure = time.Now()
// Sampling values
messageCount, droppedCount, discardedCount, filteredCount, noRouteCount := core.GetAndResetMessageCount()
messageSec := float64(messageCount) / duration.Seconds()
shared.Metric.SetF(metricMessagesSec, messageSec)
shared.Metric.SetF(metricDroppedSec, float64(droppedCount)/duration.Seconds())
shared.Metric.SetF(metricDiscardedSec, float64(discardedCount)/duration.Seconds())
shared.Metric.SetF(metricFilteredSec, float64(filteredCount)/duration.Seconds())
shared.Metric.SetF(metricNoRouteSec, float64(noRouteCount)/duration.Seconds())
shared.Metric.Add(metricMessages, int64(messageCount))
shared.Metric.Add(metricDropped, int64(droppedCount))
shared.Metric.Add(metricDiscarded, int64(discardedCount))
shared.Metric.Add(metricFiltered, int64(filteredCount))
shared.Metric.Add(metricNoRoute, int64(noRouteCount))
if plex.profile {
Log.Note.Printf("Processed %.2f msg/sec", messageSec)
}
// Blocked producers
numBlockedProducers := 0
for _, prod := range plex.producers {
if prod.IsBlocked() {
numBlockedProducers++
}
}
shared.Metric.SetI(metricBlockedProducers, numBlockedProducers)
case sig := <-plex.signal:
switch translateSignal(sig) {
case signalExit:
Log.Note.Print("Master betrayed us. Wicked. Tricksy, False. (signal)")
plex.state = multiplexerStateShutdown
return // ### return, exit requested ###
case signalRoll:
for _, consumer := range plex.consumers {
consumer.Control() <- core.PluginControlRoll
}
for _, producer := range plex.producers {
producer.Control() <- core.PluginControlRoll
}
default:
}
}
}
}
// Run the multiplexer.
// Fetch messags from the consumers and pass them to all producers.
func (plex multiplexer) run() {
if len(plex.consumers) == 0 {
Log.Error.Print("No consumers configured.")
return // ### return, nothing to do ###
}
if len(plex.producers) == 0 {
Log.Error.Print("No producers configured.")
return // ### return, nothing to do ###
}
defer plex.shutdown()
// Launch producers
plex.state = multiplexerStateStartProducers
for _, producer := range plex.producers {
producer := producer
go func() {
defer shared.RecoverShutdown()
producer.Produce(plex.producerWorker)
}()
}
// If there are intenal log listeners switch to stream mode
if core.StreamTypes.IsStreamRegistered(core.LogInternalStreamID) {
Log.SetWriter(plex.consumers[0].(*core.LogConsumer))
}
// Launch consumers
plex.state = multiplexerStateStartConsumers
for _, consumer := range plex.consumers {
consumer := consumer
go func() {
defer shared.RecoverShutdown()
consumer.Consume(plex.consumerWorker)
}()
}
// Main loop - wait for exit
// Apache is using SIG_USR1 in some cases to signal child processes.
// This signal is not available on windows
plex.signal = newSignalHandler()
Log.Note.Print("We be nice to them, if they be nice to us. (startup)")
measure := time.Now()
timer := time.NewTicker(time.Duration(2) * time.Second)
for {
select {
case <-timer.C:
duration := time.Since(measure)
measure = time.Now()
// Sampling based values
messageCount := core.GetAndResetMessageCount()
value := float64(messageCount) / duration.Seconds()
shared.Metric.SetF(metricMsgSec, value)
shared.Metric.Add(metricMessages, int64(messageCount))
if plex.profile {
Log.Note.Printf("Processed %.2f msg/sec", value)
}
// Global values
timeSinceStart := time.Since(shared.ProcessStartTime)
if totalMessages, err := shared.Metric.Get(metricMessages); err == nil {
value = float64(totalMessages) / timeSinceStart.Seconds()
shared.Metric.SetF(metricMsgSecAvg, value)
}
case sig := <-plex.signal:
switch translateSignal(sig) {
case signalExit:
Log.Note.Print("Master betrayed us. Wicked. Tricksy, False. (signal)")
plex.state = multiplexerStateShutdown
return // ### return, exit requested ###
case signalRoll:
for _, consumer := range plex.consumers {
consumer.Control() <- core.PluginControlRoll
}
for _, producer := range plex.producers {
producer.Control() <- core.PluginControlRoll
}
default:
}
}
}
}
