CRAN release 0.8.1

nanonext 0.8.1

New Features

• Implements synchronisation primitives from the NNG library. Condition variables allow the R execution thread to wait until it is signalled by an incoming message or pipe event.
  • adds core functions cv(), wait(), until(), cv_value(), and cv_reset().
  • adds signalling receive functions recv_aio_signal() and request_signal().
  • pipe_notify() signals up to 2 condition variables whenever pipes are added or removed at a socket.
• Adds msg_pipe() to return the pipe connection associated with a 'recvAio' message.
• Exposes the sha1() cryptographic hash and HMAC generation function from the 'Mbed TLS' library (for secure applications, use one of the SHA-2 algorithms instead).
• Utility function 'weakref<-'() exposes R_MakeWeakRef from R's C API. Useful for keeping objects alive for as long as required by a dependent object.

Updates

• ncurl_session() gains a 'timeout' argument, and returns an 'errorValue' with warning upon error.
• listen() and dial() gain the new logical argument 'error' to govern the function behaviour upon error.
• Internal performance enhancements.