public final class SleepingWaitStrategy extends Object implements WaitStrategy
LockSupport.parkNanos(1)
) for the minimum
number of nanos the OS and JVM will allow while the
EventProcessor
s are waiting on a barrier.
This strategy is a good compromise between performance and CPU resource. Latency spikes can occur after quiet periods.
Constructor and Description |
---|
SleepingWaitStrategy() |
SleepingWaitStrategy(int retries) |
Modifier and Type | Method and Description |
---|---|
void |
signalAllWhenBlocking()
Implementations should signal the waiting
EventProcessor s that the cursor has advanced. |
long |
waitFor(long sequence,
Sequence cursor,
Sequence dependentSequence,
SequenceBarrier barrier)
Wait for the given sequence to be available.
|
public SleepingWaitStrategy()
public SleepingWaitStrategy(int retries)
public long waitFor(long sequence, Sequence cursor, Sequence dependentSequence, SequenceBarrier barrier) throws AlertException, InterruptedException
WaitStrategy
BatchEventProcessor
explicitly
handles this case and will signal a timeout if required.waitFor
in interface WaitStrategy
sequence
- to be waited on.cursor
- the main sequence from ringbuffer. Wait/notify strategies will
need this as it's the only sequence that is also notified upon update.dependentSequence
- on which to wait.barrier
- the processor is waiting on.AlertException
- if the status of the Disruptor has changed.InterruptedException
- if the thread is interrupted.public void signalAllWhenBlocking()
WaitStrategy
EventProcessor
s that the cursor has advanced.signalAllWhenBlocking
in interface WaitStrategy
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