nanonext (version 1.6.1)

serial_config: Create Serialization Configuration

Description

Returns a serialization configuration, which may be set on a Socket for custom serialization and unserialization of non-system reference objects, allowing these to be sent and received between different R sessions. Once set, the functions apply to all send and receive operations performed in mode 'serial' over the Socket, or Context created from the Socket.

Usage

serial_config(class, sfunc, ufunc)

Value

A list comprising the configuration. This should be set on a Socket using opt<-() with option name "serial".

Arguments

class

a character string (or vector) of the class of object custom serialization functions are applied to, e.g. 'ArrowTabular' or c('torch_tensor', 'ArrowTabular').

sfunc

a function (or list of functions) that accepts a reference object inheriting from class and returns a raw vector.

ufunc

a function (or list of functions) that accepts a raw vector and returns a reference object.

Details

This feature utilises the 'refhook' system of R native serialization.

Examples

cfg <- serial_config("test_cls", function(x) serialize(x, NULL), unserialize)
cfg

cfg <- serial_config(
  c("class_one", "class_two"),
  list(function(x) serialize(x, NULL), function(x) serialize(x, NULL)),
  list(unserialize, unserialize)
)
cfg

s <- socket()
opt(s, "serial") <- cfg

# provide an empty list to remove registered functions
opt(s, "serial") <- list()

close(s)