89 lines
3.1 KiB
Java
89 lines
3.1 KiB
Java
/*
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* Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package jdk.jfr.internal.instrument;
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import java.io.IOException;
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import java.net.InetAddress;
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import jdk.jfr.events.SocketReadEvent;
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/**
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* See {@link JITracer} for an explanation of this code.
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*/
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@JIInstrumentationTarget("java.net.SocketInputStream")
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@JITypeMapping(from = "jdk.jfr.internal.instrument.SocketInputStreamInstrumentor$AbstractPlainSocketImpl",
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to = "java.net.AbstractPlainSocketImpl")
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final class SocketInputStreamInstrumentor {
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private SocketInputStreamInstrumentor() {
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}
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@SuppressWarnings("deprecation")
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@JIInstrumentationMethod
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int read(byte b[], int off, int length, int timeout) throws IOException {
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SocketReadEvent event = SocketReadEvent.EVENT.get();
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if (!event.isEnabled()) {
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return read(b, off, length, timeout);
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}
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int bytesRead = 0;
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try {
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event.begin();
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bytesRead = read(b, off, length, timeout);
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} finally {
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event.end();
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if (event.shouldCommit()) {
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String hostString = impl.address.toString();
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int delimiterIndex = hostString.lastIndexOf('/');
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event.host = hostString.substring(0, delimiterIndex);
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event.address = hostString.substring(delimiterIndex + 1);
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event.port = impl.port;
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if (bytesRead < 0) {
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event.endOfStream = true;
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} else {
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event.bytesRead = bytesRead;
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}
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event.timeout = timeout;
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event.commit();
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event.reset();
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}
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}
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return bytesRead;
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}
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private AbstractPlainSocketImpl impl = null;
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void silenceFindBugsUnwrittenField(InetAddress dummy) {
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impl.address = dummy;
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}
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static class AbstractPlainSocketImpl {
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InetAddress address;
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int port;
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}
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}
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