1 /*
   2  * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package sun.misc;
  27 
  28 import java.net.InetAddress;
  29 
  30 public interface IoTraceListener {
  31 
  32     // Notes:
  33     //
  34     // The *Begin() methods return a "handle". This can be any Object.
  35     // This handle will be passed to the *End() method.
  36     //
  37     // It is possible for a *End() method to be called with a null
  38     // handle. This happens if tracing was started between the call to
  39     // *Begin() and *End(), in which case *Begin() would not have been
  40     // called.
  41     //
  42     // Implementations of these methods should not throw Exceptions
  43     // since this will cause disruptions to the I/O operations.
  44 
  45     // Socket read
  46     public Object socketReadBegin(InetAddress address, int port, int timeout);
  47     public void socketReadEnd(Object handle, long bytesRead);
  48 
  49     // Socket Write
  50     public Object socketWriteBegin(InetAddress address, int port);
  51     public void socketWriteEnd(Object handle, long bytesRead);
  52 
  53     // File Read
  54     public Object fileReadBegin(String path);
  55     public void fileReadEnd(Object handle, long bytesRead);
  56 
  57     // File Write
  58     public Object fileWriteBegin(String path);
  59     public void fileWriteEnd(Object handle, long bytesWritten);
  60 }