VerboseEventAFStart.cpp

/*******************************************************************************
 * Copyright (c) 1991, 2021 IBM Corp. and others
 *
 * This program and the accompanying materials are made available under
 * the terms of the Eclipse Public License 2.0 which accompanies this
 * distribution and is available at https://www.eclipse.org/legal/epl-2.0/
 * or the Apache License, Version 2.0 which accompanies this distribution and
 * is available at https://www.apache.org/licenses/LICENSE-2.0.
 *
 * This Source Code may also be made available under the following
 * Secondary Licenses when the conditions for such availability set
 * forth in the Eclipse Public License, v. 2.0 are satisfied: GNU
 * General Public License, version 2 with the GNU Classpath
 * Exception [1] and GNU General Public License, version 2 with the
 * OpenJDK Assembly Exception [2].
 *
 * [1] https://www.gnu.org/software/classpath/license.html
 * [2] http://openjdk.java.net/legal/assembly-exception.html
 *
 * SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
 *******************************************************************************/

#include "VerboseEventAFStart.hpp"
#include "GCExtensions.hpp"
#include "VerboseEventStream.hpp"
#include "VerboseManagerOld.hpp"

/**
 * Create an new instance of a MM_VerboseEventAFStart event.
 * @param event Pointer to a structure containing the data passed over the hookInterface
 */
MM_VerboseEvent *
MM_VerboseEventAFStart::newInstance(MM_AllocationFailureStartEvent *event, J9HookInterface** hookInterface)
{
	MM_VerboseEventAFStart *eventObject;
	
	eventObject = (MM_VerboseEventAFStart *)MM_VerboseEvent::create(event->currentThread, sizeof(MM_VerboseEventAFStart));
	if(NULL != eventObject) {
		new(eventObject) MM_VerboseEventAFStart(event, hookInterface);
		eventObject->initialize();
	}
	return eventObject;
}

/**
 * Populate events data fields.
 * The event calls the event stream requesting the address of events it is interested in.
 * When an address is returned it populates itself with the data.
 */
void
MM_VerboseEventAFStart::consumeEvents(void)
{
	/* Increment collection count */
	(MEMORY_TYPE_NEW == _subSpaceType) ? (_manager->incrementNurseryAFCount()) : (_manager->incrementTenureAFCount());
	
	/* Consume global data */
	_lastAFTime = (MEMORY_TYPE_NEW == _subSpaceType) ? (_manager->getLastNurseryAFTime()) : (_manager->getLastTenureAFTime());
	_AFCount = (MEMORY_TYPE_NEW == _subSpaceType) ? (_manager->getNurseryAFCount()) : (_manager->getTenureAFCount());
}

/**
 * Passes a format string and data to the output routine defined in the passed output agent.
 * @param agent Pointer to an output agent.
 */
void
MM_VerboseEventAFStart::formattedOutput(MM_VerboseOutputAgent *agent)
{
	PORT_ACCESS_FROM_JAVAVM(((J9VMThread*)_omrThread->_language_vmthread)->javaVM);
	OMRPORT_ACCESS_FROM_J9PORT(PORTLIB);
	char timestamp[32];
	UDATA indentLevel = _manager->getIndentLevel();
	U_64 timeInMicroSeconds = 0;
	U_64 prevTime = 0;

	omrstr_ftime_ex(timestamp, sizeof(timestamp), VERBOSEGC_DATE_FORMAT, _timeInMilliSeconds, OMRSTR_FTIME_FLAG_LOCAL);
	switch(_subSpaceType) {
		case 0:
			agent->formatAndOutput(static_cast<J9VMThread*>(_omrThread->_language_vmthread), indentLevel, "<af type=\"UNKNOWN!!\" />");
			return;
			break;
		
		case MEMORY_TYPE_NEW:

			if (1 == _manager->getNurseryAFCount()) {
				prevTime = _manager->getInitializedTime();
			} else {
				prevTime = _lastAFTime;
			}
			timeInMicroSeconds = j9time_hires_delta(prevTime, _time, J9PORT_TIME_DELTA_IN_MICROSECONDS);
			agent->formatAndOutput(static_cast<J9VMThread*>(_omrThread->_language_vmthread), indentLevel, "<af type=\"nursery\" id=\"%zu\" timestamp=\"%s\" intervalms=\"%llu.%03.3llu\">",
				_manager->getNurseryAFCount(),
				timestamp,
				timeInMicroSeconds / 1000,
				timeInMicroSeconds % 1000
			);
			break;
		
		case MEMORY_TYPE_OLD:

			if (1 == _manager->getTenureAFCount()) {
				prevTime = _manager->getInitializedTime();
			} else {
				prevTime = _lastAFTime;
			}			
			timeInMicroSeconds = j9time_hires_delta(prevTime, _time, J9PORT_TIME_DELTA_IN_MICROSECONDS);
			agent->formatAndOutput(static_cast<J9VMThread*>(_omrThread->_language_vmthread), indentLevel, "<af type=\"tenured\" id=\"%zu\" timestamp=\"%s\" intervalms=\"%llu.%03.3llu\">",
				_manager->getTenureAFCount(),
				timestamp,
				timeInMicroSeconds / 1000,
				timeInMicroSeconds % 1000
			);
			break;
		default:
			break;
	}
	
	_manager->incrementIndent();
	indentLevel = _manager->getIndentLevel();

	agent->formatAndOutput(static_cast<J9VMThread*>(_omrThread->_language_vmthread), indentLevel, "<minimum requested_bytes=\"%zu\" />", _requestedBytes);

	/* output the common GC start info */
	gcStartFormattedOutput(agent);

}