Changelog

Implements the %>>% deferred evaluation pipe.
Adds ‘.timeout’ argument to mirai() to ensure a mirai always resolves even if the child process crashes etc.

Exits cleanly when daemons have not been explicitly zeroed prior to ending an R session.
Fixes possible hang on Windows when shutting down daemons.

Back to a pure R implementation thanks to enhanced internal design at nanonext.
Adds auxiliary function is_mirai() to test if an object is a mirai.
Versioning system to synchronise with nanonext e.g. v0.4.x requires nanonext >= 0.4.0.

The value of a mirai is now stored at $data to optimally align with the underlying implementation.
Package now contains C code (requires compilation), using weak references for simpler management of resources.
Switch to abstract sockets on Linux.

mirai() added as an alias for eval_mirai(); supports evaluating arbitrary length expressions wrapped in {}.
A mirai now resolves automatically without requiring call_mirai(). Access the $value directly and an ‘unresolved’ logical NA will be returned if the async operation is yet to complete.
stop_mirai() added as a function to stop evaluation of an ongoing async operation.
Auxiliary functions is_nul_byte() and unresolved() re-exported from {nanonext} to test for evaluation errors and resolution of a ‘mirai’ respectively.
New daemons() interface to set and manage persistent background processes for receiving ‘mirai’ requests.

mirai 0.4.1.9000