[jira] [Created] (QPID-6770) Prevent chains of DirectByteBuffers forming when slicing the thread's cached buffer

["Keith Wall (JIRA)" <ji...@apache.org>]

Keith Wall created QPID-6770:
--------------------------------

             Summary: Prevent chains of DirectByteBuffers forming when slicing the thread's cached buffer
                 Key: QPID-6770
                 URL: https://issues.apache.org/jira/browse/QPID-6770
             Project: Qpid
          Issue Type: Bug
          Components: Java Broker
            Reporter: Keith Wall


The QBB has a per thread cached DirectByteBuffer.  Callers requiring a buffer are served slices of this buffer.  The algorithm currently takes a slice  of the buffer for the caller, then takes a second slice to represent the bytes that remain unused in the buffer and discards the original references.  This approach has the unfortunate consequence that a chain of ByteBuffers forms as each DirectByteBuffer slice references its parent via its attachment field.

The following posting describes the issue:

http://mail.openjdk.java.net/pipermail/core-libs-dev/2014-February/024857.html



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@qpid.apache.org
For additional commands, e-mail: dev-help@qpid.apache.org