In response to a growing desire for ways to control groups of processes from user space, the kernel has added a number of mechanisms that allow one process to operate on another. One piece that is currently missing, though, is the ability for a process to snatch a copy of an open file descriptor from another. That gap may soon be filled, though, if the pidfd_getfd() system-call patch set from Sargun Dhillon is merged.
Copyright © 2020, Eklektix, Inc.
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds