| /******************************************************************************* |
| * Copyright (c) 2015 Ericsson |
| * |
| * All rights reserved. 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/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Matthew Khouzam - Initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.tracecompass.internal.analysis.os.linux.core.kernel.handlers; |
| |
| import org.eclipse.tracecompass.analysis.os.linux.core.kernel.StateValues; |
| import org.eclipse.tracecompass.analysis.os.linux.core.model.ProcessStatus; |
| import org.eclipse.tracecompass.analysis.os.linux.core.trace.IKernelAnalysisEventLayout; |
| import org.eclipse.tracecompass.internal.analysis.os.linux.core.kernel.Attributes; |
| import org.eclipse.tracecompass.statesystem.core.ITmfStateSystemBuilder; |
| import org.eclipse.tracecompass.statesystem.core.exceptions.AttributeNotFoundException; |
| import org.eclipse.tracecompass.statesystem.core.statevalue.TmfStateValue; |
| import org.eclipse.tracecompass.tmf.core.event.ITmfEvent; |
| |
| /** |
| * System call exit handler |
| */ |
| public class SysExitHandler extends KernelEventHandler { |
| |
| /** |
| * Constructor |
| * |
| * @param layout |
| * event layout |
| */ |
| public SysExitHandler(IKernelAnalysisEventLayout layout) { |
| super(layout); |
| } |
| |
| @Override |
| public void handleEvent(ITmfStateSystemBuilder ss, ITmfEvent event) throws AttributeNotFoundException { |
| Integer cpu = KernelEventHandlerUtils.getCpu(event); |
| if (cpu == null) { |
| return; |
| } |
| /* Assign the new system call to the process */ |
| int currentThreadNode = KernelEventHandlerUtils.getCurrentThreadNode(cpu, ss); |
| int quark = ss.getQuarkRelativeAndAdd(currentThreadNode, Attributes.SYSTEM_CALL); |
| long timestamp = KernelEventHandlerUtils.getTimestamp(event); |
| ss.modifyAttribute(timestamp, TmfStateValue.nullValue().unboxValue(), quark); |
| |
| /* Put the process in system call mode */ |
| ss.modifyAttribute(timestamp, ProcessStatus.RUN.getStateValue().unboxValue(), currentThreadNode); |
| |
| /* Put the CPU in system call (kernel) mode */ |
| int currentCPUNode = KernelEventHandlerUtils.getCurrentCPUNode(cpu, ss); |
| ss.modifyAttribute(timestamp, StateValues.CPU_STATUS_RUN_USERMODE_VALUE.unboxValue(), currentCPUNode); |
| } |
| |
| } |