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2a2352e07d
This gets rid of a dangerous-looking use of the not-volatile XLogCtl pointer in a couple of spinlock-protected sections, where the normal coding rule is that you should only access shared memory through a pointer-to-volatile. I think the risk is only hypothetical not actual, since for there to be a bug the compiler would have to move the spinlock acquire or release across the memcpy() call, which one sincerely hopes it will not. Still, it looks cleaner this way. Per comment from Daniel Farina and subsequent discussion.
PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings. PostgreSQL has many language interfaces, many of which are listed here: http://www.postgresql.org/download See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Changes between all PostgreSQL releases are recorded in the file HISTORY. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.