org.reaktivity.command.log.internal.spy.RingBufferSpy Maven / Gradle / Ivy
/**
* Copyright 2016-2020 The Reaktivity Project
*
* The Reaktivity Project licenses this file to you under the Apache License,
* version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
package org.reaktivity.command.log.internal.spy;
import org.agrona.DirectBuffer;
import org.reaktivity.nukleus.function.MessagePredicate;
public interface RingBufferSpy
{
enum SpyPosition
{
ZERO,
HEAD,
TAIL
}
void spyAt(SpyPosition position);
int spy(MessagePredicate handler);
int spy(MessagePredicate handler, int messageCountLimit);
long producerPosition();
long consumerPosition();
DirectBuffer buffer();
}