call_with_callback: Call 'func' and then call 'callback' with the result
In r-lib/async: Asynchronous Computation and 'I/O'

call_with_callback

R Documentation

Call `func` and then call `callback` with the result

Description

callback will be called with two arguments, the first one will the error object if func() threw an error, or NULL otherwise. The second argument is NULL on error, and the result of func() otherwise.

Usage

call_with_callback(func, callback, info = NULL)

Arguments

`func`	Function to call.
`callback`	Callback to call with the result of `func()`, or the error thrown.
`info`	Extra info to add to the error object. Must be a named list.