| /* |
| * Copyright (c) 2013, 2018, 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.internal.instrument; |
| |
| import java.io.IOException; |
| import java.net.InetSocketAddress; |
| import java.nio.ByteBuffer; |
| |
| import jdk.jfr.events.SocketReadEvent; |
| import jdk.jfr.events.SocketWriteEvent; |
| |
| /** |
| * See {@link JITracer} for an explanation of this code. |
| */ |
| @JIInstrumentationTarget("sun.nio.ch.SocketChannelImpl") |
| final class SocketChannelImplInstrumentor { |
| |
| private SocketChannelImplInstrumentor() { |
| } |
| |
| private InetSocketAddress remoteAddress; |
| |
| @SuppressWarnings("deprecation") |
| @JIInstrumentationMethod |
| public int read(ByteBuffer dst) throws IOException { |
| SocketReadEvent event = SocketReadEvent.EVENT.get(); |
| if (!event.isEnabled()) { |
| return read(dst); |
| } |
| int bytesRead = 0; |
| try { |
| event.begin(); |
| bytesRead = read(dst); |
| } finally { |
| event.end(); |
| if (event.shouldCommit()) { |
| String hostString = remoteAddress.getAddress().toString(); |
| int delimiterIndex = hostString.lastIndexOf('/'); |
| |
| event.host = hostString.substring(0, delimiterIndex); |
| event.address = hostString.substring(delimiterIndex + 1); |
| event.port = remoteAddress.getPort(); |
| if (bytesRead < 0) { |
| event.endOfStream = true; |
| } else { |
| event.bytesRead = bytesRead; |
| } |
| event.timeout = 0; |
| |
| event.commit(); |
| event.reset(); |
| } |
| } |
| return bytesRead; |
| } |
| |
| @SuppressWarnings("deprecation") |
| @JIInstrumentationMethod |
| public long read(ByteBuffer[] dsts, int offset, int length) throws IOException { |
| SocketReadEvent event = SocketReadEvent.EVENT.get(); |
| if(!event.isEnabled()) { |
| return read(dsts, offset, length); |
| } |
| |
| long bytesRead = 0; |
| try { |
| event.begin(); |
| bytesRead = read(dsts, offset, length); |
| } finally { |
| event.end(); |
| if (event.shouldCommit()) { |
| String hostString = remoteAddress.getAddress().toString(); |
| int delimiterIndex = hostString.lastIndexOf('/'); |
| |
| event.host = hostString.substring(0, delimiterIndex); |
| event.address = hostString.substring(delimiterIndex + 1); |
| event.port = remoteAddress.getPort(); |
| if (bytesRead < 0) { |
| event.endOfStream = true; |
| } else { |
| event.bytesRead = bytesRead; |
| } |
| event.timeout = 0; |
| |
| event.commit(); |
| event.reset(); |
| } |
| } |
| return bytesRead; |
| } |
| |
| @SuppressWarnings("deprecation") |
| @JIInstrumentationMethod |
| public int write(ByteBuffer buf) throws IOException { |
| SocketWriteEvent event = SocketWriteEvent.EVENT.get(); |
| if (!event.isEnabled()) { |
| return write(buf); |
| } |
| |
| int bytesWritten = 0; |
| try { |
| event.begin(); |
| bytesWritten = write(buf); |
| } finally { |
| event.end(); |
| if (event.shouldCommit()) { |
| String hostString = remoteAddress.getAddress().toString(); |
| int delimiterIndex = hostString.lastIndexOf('/'); |
| |
| event.host = hostString.substring(0, delimiterIndex); |
| event.address = hostString.substring(delimiterIndex + 1); |
| event.port = remoteAddress.getPort(); |
| event.bytesWritten = bytesWritten < 0 ? 0 : bytesWritten; |
| |
| event.commit(); |
| event.reset(); |
| } |
| } |
| return bytesWritten; |
| } |
| |
| @SuppressWarnings("deprecation") |
| @JIInstrumentationMethod |
| public long write(ByteBuffer[] srcs, int offset, int length) throws IOException { |
| SocketWriteEvent event = SocketWriteEvent.EVENT.get(); |
| if (!event.isEnabled()) { |
| return write(srcs, offset, length); |
| } |
| long bytesWritten = 0; |
| try { |
| event.begin(); |
| bytesWritten = write(srcs, offset, length); |
| } finally { |
| event.end(); |
| if (event.shouldCommit()) { |
| String hostString = remoteAddress.getAddress().toString(); |
| int delimiterIndex = hostString.lastIndexOf('/'); |
| |
| event.host = hostString.substring(0, delimiterIndex); |
| event.address = hostString.substring(delimiterIndex + 1); |
| event.port = remoteAddress.getPort(); |
| event.bytesWritten = bytesWritten < 0 ? 0 : bytesWritten; |
| |
| event.commit(); |
| event.reset(); |
| } |
| } |
| return bytesWritten; |
| } |
| |
| } |