/*
* 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
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*/
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 {
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