CRAN release 0.2.0

New Features

• Implements full async I/O capabilities
  • send_aio() and recv_aio() now return Aio objects, for which the results may be called using call_aio().
• New request() and reply() functions implement the full logic of an RPC client/server, allowing processes to run concurrently on the client and server.
  • Designed to be run in separate processes, the reply server will await data and apply a function before returning a result.
  • The request client performs an async request to the server and returns immediately with an Aio.
• New ncurl() minimalistic http(s) client.
• New nng_timer() utility as a demonstration of NNG's multithreading capabilities.
• Allows setting the environment variable 'NANONEXT_TLS' prior to package installation
  • Enables TLS where the system NNG library has been built with TLS support (using Mbed TLS).

Updates

• Dialer/listener starts and close operations no longer print a message to stderr when successful for less verbosity by default.
• All send and receive functions, e.g. send()/recv(), gain a revised 'mode' argument.
  • This now permits R serialization as an option, consolidating the functionality of the '_vec' series of functions.
• Functions 'send_vec' and 'recv_vec' are deprecated and will be removed in a future release.
• Functions 'ctx_send' and 'ctx_recv' have been renamed send_ctx() and recv_ctx() for consistency.
• The $socket_close() method of nano objects has been renamed $close() to better align with the functional API.