--- /dev/null 2018-06-17 23:18:20.806999507 +0800 +++ new/src/share/classes/jdk/jfr/events/FileReadEvent.java 2019-01-29 10:59:19.884135541 +0800 @@ -0,0 +1,65 @@ +/* + * Copyright (c) 2012, 2019, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +package jdk.jfr.events; + +import jdk.jfr.Category; +import jdk.jfr.Description; +import jdk.jfr.Label; +import jdk.jfr.DataAmount; +import jdk.jfr.Name; + +@Name("com.oracle.jdk.FileRead") +@Label("File Read") +@Category("Java Application") +@Description("Reading data from a file") +public final class FileReadEvent extends AbstractJDKEvent { + + public static final ThreadLocal EVENT = + new ThreadLocal() { + @Override protected FileReadEvent initialValue() { + return new FileReadEvent(); + } + }; + + @Label("Path") + @Description("Full path of the file") + public String path; + + @Label("Bytes Read") + @Description("Number of bytes read from the file (possibly 0)") + @DataAmount + public long bytesRead; + + @Label("End of File") + @Description("If end of file was reached") + public boolean endOfFile; + + public void reset() { + path = null; + endOfFile = false; + bytesRead = 0; + } +}