IBase.ProcessPoolStateval in_child : int option IStdlib.IStd.refKeep track of whether the current execution is in a child process
val update_status : (Mtime.t -> string -> unit) IStdlib.IStd.refPing the task bar whenever a new task is started with the start time and a description for the task
val update_heap_words : (unit -> unit) IStdlib.IStd.refval has_running_children : bool IStdlib.IStd.ref