-------- Original Message -------- Subject: [liblf-dev] C++0x developments Date: Fri, 22 Feb 2008 12:47:36 -0500 From: Bjorn Roche <[EMAIL PROTECTED]> Reply-To: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Hey all, I just wanted to update everyone on the latest developments in C++0x (hopefully that will be C++08!). Lawrence Crowl, one of the members of the committee gave a talk to google back in may about the developments: http://video.google.com/videoplay?docid=3528799355371049884 <http://video.google.com/videoplay?docid=3528799355371049884> One of the most important things is that C++ will have built-in support for threads, including a memory model, synchronization and atomics. Since he gave his talk, the committee has decided to add limited support for fences as well. Note that GCC currently has intrinsic support for atomic operations (http://gcc.gnu.org/onlinedocs/gcc-4.1.0/gcc/Atomic-Builtins.html <http://gcc.gnu.org/onlinedocs/gcc-4.1.0/gcc/Atomic-Builtins.html> ) and even fences, so it's possible to build such types now that's at least compatible with gcc. I'm going to write a prototype for and atomic int for GCC if anyone is interested -- should be pretty simple with those intrinsics, but who knows. Lawrence sent me this. The papers are a bit hard to find, but knowing which ones to look for helps a lot: You can keep up at the C++ standards committee web site: http://www.open-std.org/JTC1/SC22/WG21/ <http://www.open-std.org/JTC1/SC22/WG21/> Under the link 'papers' you can find the latest papers in each area of threading: 2007 N2427 C++ Atomic Types and Operations 2007 N2429 Concurrency memory model (final revision) 2007 N2440 Abandoning a Process 2007 N2459 Allow atomics use in signal handlers 2007 N2480 A Less Formal Explanation of the Proposed C++ Concurrency Memory Model 2008 N2492 C++ Data-Dependency Ordering: Atomics and Memory Model 2008 N2493 C++ Data-Dependency Ordering: Function Annotation 2008 N2497 Multi-threading Library for Standard C++ (Revision 1) 2008 N2513 Dynamic Initialization and Destruction with Concurrency 2008 N2514 Implicit Conversion Operators for Atomics 2008 N2516 Threads API Review Committee Report 2008 N2519 Library thread-safety from a user's point of view, with wording 2008 N2528 Timed_mutex in C++0x _______________________________________________ vos-d mailing list vos-d@interreality.org http://www.interreality.org/cgi-bin/mailman/listinfo/vos-d
