| /******************************************************************************* |
| * 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.ctf.core.trace; |
| |
| import org.eclipse.jdt.annotation.NonNullByDefault; |
| import org.eclipse.jdt.annotation.Nullable; |
| import org.eclipse.tracecompass.ctf.core.CTFException; |
| import org.eclipse.tracecompass.ctf.core.event.types.ICompositeDefinition; |
| import org.eclipse.tracecompass.ctf.core.trace.ICTFPacketDescriptor; |
| import org.eclipse.tracecompass.ctf.core.trace.IPacketReader; |
| import org.eclipse.tracecompass.internal.ctf.core.event.EventDefinition; |
| |
| /** |
| * Null packet reader, used for unset packets |
| */ |
| @NonNullByDefault |
| public final class NullPacketReader implements IPacketReader { |
| |
| /** |
| * Instance of a null packet reader |
| */ |
| public static final NullPacketReader INSTANCE = new NullPacketReader(); |
| |
| private NullPacketReader() { } |
| |
| @Override |
| public int getCPU() { |
| return UNKNOWN_CPU; |
| } |
| |
| @Override |
| public boolean hasMoreEvents() { |
| return false; |
| } |
| |
| @Override |
| public @Nullable EventDefinition readNextEvent() throws CTFException { |
| return null; |
| } |
| |
| @Override |
| public @Nullable ICTFPacketDescriptor getCurrentPacket() { |
| return null; |
| } |
| |
| @Override |
| public @Nullable ICompositeDefinition getCurrentPacketEventHeader() { |
| return null; |
| } |
| } |