#' Utilities for working with IPC objects
#'
#' @rdname ipc-functions
#'
#' @description Use \code{ipcid()} to generate a unique mutex or
#' counter identifier. A mutex or counter with the same \code{id},
#' including those in different processes, share the same state.
#'
#' @param id character(1) (optional for \code{ipcid()}) identifier
#' string for mutex or counter.
#'
#' @return \code{ipcid()} returns a character(1) unique identifier,
#' with \code{id} (if not missing) prepended.
#'
#' @examples
#' ipcid()
#' id <- ipcid("example-identifier")
#' id
#'
#' @export
ipcid <- function(id) {
uuid <- .Call(.ipc_uuid)
if (!missing(id))
uuid <- paste(as.character(id), uuid, sep="-")
uuid
}
#' @rdname ipc-functions
#'
#' @description \code{ipcremove()} removes external state associated
#' with mutex or counters created with \code{id}.
#'
#' @return \code{ipcremove()} returns (invisibly) \code{TRUE} if
#' external resources were release or \code{FALSE} if not (e.g.,
#' because the resources has already been released).
#'
#'
#' @examples
#' ipcremove(id)
#'
#' @export
ipcremove <- function(id) {
invisible(.Call(.ipc_remove, id))
}
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.