[libqb] [asalkeld/libqb] 9b3be0: ringbuffer: use atomic ops on ringbuffer chunk mag...

Branch: refs/heads/master Home: https://github.com/asalkeld/libqb Commit: 9b3be0b4509e4f3b3aef57e0287a68c73e5ed4ca https://github.com/asalkeld/libqb/commit/9b3be0b4509e4f3b3aef57e0287a68c7... Author: Jeremy Fitzhardinge <jeremy(a)goop.org&gt; Date: 2013-04-23 (Tue, 23 Apr 2013) Changed paths: M lib/ringbuffer.c Log Message: ----------- ringbuffer: use atomic ops on ringbuffer chunk magic The ringbuffer protocol uses the chunk magic number to indicate to the other side what state a chunk is in. It's therefore important to use strongly ordered memory writes to make sure that neither the compiler nor the CPU change the apparent order of the writes, since that would result in corrupted messages. Signed-off-by: Angus Salkeld <asalkeld(a)redhat.com&gt;