hg: jdk7u/jdk7u-dev/jdk: 8006757: Refactor Socket and File I/O tracing

[staffan.larsen at oracle.com]

Changeset: 0ccb6896143c
Author:    sla
Date:      2013-02-13 11:04 +0100
URL:       http://hg.openjdk.java.net/jdk7u/jdk7u-dev/jdk/rev/0ccb6896143c

8006757: Refactor Socket and File I/O tracing
Summary: Allow deferring evaluation/object allocations until we know events will be  written, which may reduce the overhead of enabling these events.
Reviewed-by: alanb
Contributed-by: claes.redestad at oracle.com

! src/share/classes/java/net/SocketInputStream.java
! src/share/classes/java/net/SocketOutputStream.java
! src/share/classes/sun/misc/IoTrace.java
! src/share/classes/sun/nio/ch/SocketAdaptor.java
! src/share/classes/sun/nio/ch/SocketChannelImpl.java
! test/sun/misc/IoTrace/IoTraceAgent.java
! test/sun/misc/IoTrace/IoTraceBase.java
! test/sun/misc/IoTrace/IoTraceListener.java