ChangeLog in posix_mq-0.3.1 vs ChangeLog in posix_mq-0.4.0

@@ -1,6 +1,132 @@
 ChangeLog from git://git.bogomips.org/ruby_posix_mq.git ()
 
+    commit aa9beecf64739ea084158ff63a92f626bfb5717d
+    Author: Eric Wong <[e-mail]>
+    Date:   Sat Mar 13 00:28:14 2010 -0800
+    
+        posix_mq 0.4.0
+        
+        Small bugfixes and small API changes to avoid potential
+        issues/misuse are the focus of this release.
+        
+        For non-blocking operation, the GVL is no longer bounced.  This
+        reduces synchronization/scheduling overhead when used in
+        non-blocking applications.
+        
+        Small cleanups and documentation improvements, too.
+        
+        * make POSIX_MQ#dup and POSIX_MQ#clone no-op
+        * do not release GVL for non-blocking operations
+        * do not release GVL when unlinking/opening
+        * POSIX_MQ#<< does not release GVL when non-blocking
+        * avoid shadow warnings
+        * README: add mailing list archives info
+        * POSIX_MQ#to_io works under FreeBSD, too
+        * fix potential race with notify(&block)
+        * add TODO item for using netlink under Linux
+        * remove non-portable #warning CPP directive
+        * ensure POSIX_MQ#name is clobber-proof
+    
+    commit 437cbe78cb0f239e34f9dbf1341f5b85f96f2f25
+    Author: Eric Wong <[e-mail]>
+    Date:   Sat Mar 13 00:22:22 2010 -0800
+    
+        ensure POSIX_MQ#name is clobber-proof
+        
+        We don't want folks to accidentally clobber the value for
+        others, so allocate a new string object for it (don't worry,
+        rb_str_dup() is cheap in 1.9).
+    
+    commit 74e1f75b238416d9ac402f291431a5e457ae313f
+    Author: Eric Wong <[e-mail]>
+    Date:   Sat Mar 13 00:08:37 2010 -0800
+    
+        remove non-portable #warning CPP directive
+        
+        There's a good chance they're not using GCC if they're on some
+        weird platform that we'd emit a warning for.
+    
+    commit 9881f136858ac8f3a77a6cea8ce15b1cdb4ad55a
+    Author: Eric Wong <[e-mail]>
+    Date:   Tue Mar 2 22:47:29 2010 -0800
+    
+        add TODO item for using netlink under Linux
+    
+    commit 19668b0edc9b09cfd72247f7041390e0328032a0
+    Author: Eric Wong <[e-mail]>
+    Date:   Tue Mar 2 21:20:28 2010 -0800
+    
+        fix potential race with notify(&block)
+        
+        We need to assign the notify_thread before assigning the
+        notification.  Otherwise, there's a chance the notification
+        could fire and the notify_thread is not properly assigned for
+        the POSIX_MQ object when the pipe becomes readable.
+    
+    commit 0f4a8ef81479f9eff9037011d81b96cf402cbe7b
+    Author: Eric Wong <[e-mail]>
+    Date:   Sat Feb 20 17:36:16 2010 -0800
+    
+        POSIX_MQ#to_io works under FreeBSD, too
+    
+    commit 44cd880c96a76d43f6dcc7f7cdf7f687e32bda0c
+    Author: Eric Wong <[e-mail]>
+    Date:   Sat Feb 20 17:35:08 2010 -0800
+    
+        README: add mailing list archives info
+    
+    commit 4b56e475483454cd6616dd3c310c251940e9368b
+    Author: Eric Wong <[e-mail]>
+    Date:   Sat Feb 20 17:19:52 2010 -0800
+    
+        avoid shadow warnings
+    
+    commit 97ef1cfd699640e40d2d63746d005f4f4cf6a863
+    Author: Eric Wong <[e-mail]>
+    Date:   Sat Feb 20 14:52:16 2010 -0800
+    
+        POSIX_MQ#<< does not release GVL when non-blocking
+        
+        Missed this with the other change
+    
+    commit 5849a3ca8e0691a7f39c5cdbfc09fc34ee4da308
+    Author: Eric Wong <[e-mail]>
+    Date:   Sat Feb 20 14:46:04 2010 -0800
+    
+        do not release GVL when unlinking/opening
+        
+        Since the message queue is not actually on a (slow) block
+        device, it's unlikely to block in a way where other tasks may be
+        scheduled by the kernel.  So avoid complicating things and
+        unnecessary task switching and assume mq_open/mq_unlink can
+        be executed as fast as the CPU/memory subsystems allows.
+    
+    commit a90d0f97c9eb5d9683af09b60ef7af9e94a255c3
+    Author: Eric Wong <[e-mail]>
+    Date:   Sat Feb 20 14:40:16 2010 -0800
+    
+        do not release GVL for non-blocking operations
+        
+        There's no point in wasting cycles releasing and reacquiring
+        a lock when we know we won't block.  Since most non-blocking
+        users are expected to be single/few-threaded processes, this
+        will likely help them.
+    
+    commit 67a59023164bc039129b34a742f06ba376687684
+    Author: Eric Wong <[e-mail]>
+    Date:   Wed Feb 17 00:37:43 2010 -0800
+    
+        make POSIX_MQ#dup and POSIX_MQ#clone no-op
+        
+        It'll cause problems for the automatic mq_close() during GC
+        otherwise, as dup(2) on an mqd_t isn't portable.
+        
+        Of course there's no point in cloning or duping, either, as
+        mq_send/mq_receive operations are always atomic at the kernel
+        level and only one thread can have a notification registered
+        for it.
+    
     commit 05e577616b74bea99a0e43e07f28823ddda1aaf9
     Author: Eric Wong <[e-mail]>
     Date:   Sat Feb 13 03:39:17 2010 -0800
     
         posix_mq 0.3.1