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[Java]: moved event log to be all static and removed from MediaDriver…
….Context. Added EventLogAgent that uses event log reader thread.
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aeron-agent/src/main/java/uk/co/real_logic/aeron/agent/EventLogAgent.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,58 @@ | ||
| /* | ||
| * Copyright 2014 - 2016 Real Logic Ltd. | ||
| * | ||
| * Licensed 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 uk.co.real_logic.aeron.agent; | ||
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| import uk.co.real_logic.aeron.driver.event.EventConfiguration; | ||
| import uk.co.real_logic.agrona.concurrent.AgentRunner; | ||
| import uk.co.real_logic.agrona.concurrent.SleepingIdleStrategy; | ||
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| import java.lang.instrument.Instrumentation; | ||
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| public class EventLogAgent | ||
| { | ||
| private static final EventLogReaderAgent EVENT_LOG_READER_AGENT = new EventLogReaderAgent(); | ||
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| private static final AgentRunner EVENT_LOG_READER_AGENT_RUNNER = | ||
| new AgentRunner(new SleepingIdleStrategy(1), EventLogAgent::errorHandler, null, EVENT_LOG_READER_AGENT); | ||
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| private static final Thread EVENT_LOG_READER_THREAD = new Thread(EVENT_LOG_READER_AGENT_RUNNER); | ||
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| public static void errorHandler(final Throwable throwable) | ||
| { | ||
| } | ||
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| public static void premain(final String agentArgs, final Instrumentation instrumentation) | ||
| { | ||
| if (EventConfiguration.ENABLED_EVENT_CODES != 0) | ||
| { | ||
| /* | ||
| * Intercept based on enabled events: | ||
| * SenderProxy | ||
| * ClientProxy | ||
| * DriverCondcutor (onClientCommand) | ||
| * SendChannelEndpoint | ||
| * ReceiveChannelEndpoint | ||
| */ | ||
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| EVENT_LOG_READER_THREAD.setName("event log reader"); | ||
| EVENT_LOG_READER_THREAD.start(); | ||
| } | ||
| } | ||
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| public static void agentmain(final String agentArgs, final Instrumentation instrumentation) | ||
| { | ||
| } | ||
| } |
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aeron-agent/src/main/java/uk/co/real_logic/aeron/agent/EventLogReaderAgent.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,44 @@ | ||
| /* | ||
| * Copyright 2014 - 2016 Real Logic Ltd. | ||
| * | ||
| * Licensed 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 uk.co.real_logic.aeron.agent; | ||
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| import uk.co.real_logic.aeron.driver.event.EventCode; | ||
| import uk.co.real_logic.aeron.driver.event.EventConfiguration; | ||
| import uk.co.real_logic.agrona.concurrent.Agent; | ||
| import uk.co.real_logic.agrona.concurrent.MessageHandler; | ||
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| import java.util.function.Consumer; | ||
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| public class EventLogReaderAgent implements Agent | ||
| { | ||
| final Consumer<String> eventConsumer = System.out::println; | ||
| final MessageHandler onEventFunc = | ||
| (typeId, buffer, offset, length) -> eventConsumer.accept(EventCode.get(typeId).decode(buffer, offset)); | ||
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| public int doWork() throws Exception | ||
| { | ||
| return EventConfiguration.EVENT_RING_BUFFER.read(onEventFunc, EventConfiguration.EVENT_READER_FRAME_LIMIT); | ||
| } | ||
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| public String roleName() | ||
| { | ||
| return null; | ||
| } | ||
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| public void onClose() | ||
| { | ||
| } | ||
| } |
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