Nothing
#' Checks whether or not we are running in a forked child process
#'
#' @return (logical) Returns TRUE if the running in a forked child
#' process, otherwise FALSE.
#'
#' @details
#' Examples of setups and functions that rely on _forked_ parallelization
#' are `parallel::makeCluster(n, type = "FORK")`, `parallel::mclapply()`,
#' and `future::plan("multicore")`.
#'
#' @export
isForkedChild <- local({
isChild <- NULL
function() {
if (is.null(isChild)) {
if (supportsMulticore()) {
## Asked for parallel:::isChild() to be exported /HB 2021-11-04
## https://bugs.r-project.org/show_bug.cgi?id=18230
isChild <- importParallel("isChild")
} else {
isChild <- function() FALSE
}
}
isChild()
}
})
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