On 07/10/2011 03:56 PM, Pieter Hintjens wrote: > So IOW I'm volunteering to package / maintain 3.0, taking it to stable > status. This should take us about 6 months from now.
Great! Thanks! For reference, here's the list of changes introduced by 0MQ/3.0: * Obsolete constants ZMQ_UPSTREAM and ZMQ_DOWNSTREAM removed. Use ZMQ_PUSH and ZMQ_PULL instead. * Timeout in zmq_poll is in milliseconds instead of microseconds. This makes zmq_poll() compliant with POSIX poll() * ZMQ_MCAST_LOOP removed. There's no support for multicast over loopback any more. Use IPC or TCP isntead. * Pre-built devices and zmq_device() removed. Should be made available as a separate project(s). * ZMQ_SWAP removed. Writing data to disk should be done on top of 0MQ, on inside it. * C++ binding removed from the core. Now it's a separate project, same way as any other binding. * zmq_send/zmq_recv was renamed zmq_sendmsg/zmq_recvmsg. * POSIX-compliant zmq_send and zmq_recv introduced (uses raw buffer instead of message object). * ZMQ_RECOVERY_IVL and ZMQ_RECOVERY_IVL_MSEC reconciled. The new option is named ZMQ_RECOVERY_IVL and the unit is milliseconds. * Option types changed. Most of the numeric types are represented as 'int'. * ZMQ_HWM split into ZMQ_SNDHWM and ZMQ_RCVHWM. This allows to control message flow separately for each direction. * ZMQ_NOBLOCK renamed ZMQ_DONTWAIT. That makes it POSIX-compliant. * ZMQ_MULTICAST_HOPS socket option added. Sets the appropriate field in IP headers of PGM packets. * Subscription forwarding. Instead of filtering on consumer, subscription is moved as far as possible towards publisher and filtering is done there. * ZMQ_XPUB, ZMQ_XSUB introduced. Allow to create subscription-forwarding-friendly intermediate devices. * Add sockopt ZMQ_RCVTIMEO/ZMQ_SNDTIMEO. Allow to set timeout for blocking send/recv calls. * LABEL flag added to the wire format. The flag distinguishes message parts used by 0MQ (labels) from user payload message parts. * New wire format for REQ/REP pattern. First, bottom-of-the-stack message part is not needed any more -- LABEL flag is used instead. Second, peer IDs are 32-bit integers rather than UUIDs. * REQ socket drops duplicate replies. * Outstanding requests & replies associated with a client are dropped when the clients dies. Performance optimisation. * Introduce ZMQ_ROUTER and ZMQ_DEALER sockets. These mimic the functionality of ZMQ_ROUTER and ZMQ_DEALER in 0MQ/2.1.x. Guarantees backward compatibility for exsiting code. * Removed dependency on OS socketpair buffer size. No more asserts in mailbox.cpp because of low system limit of sockepair buffer size. * Make pkg-config dependency conditional. Martin _______________________________________________ zeromq-dev mailing list [email protected] http://lists.zeromq.org/mailman/listinfo/zeromq-dev
