pub fn set_thread_gid(gid: Gid) -> Result<()>Expand description
setgid(gid)—Sets the effective group ID of the current thread.
§Warning
This is not the setgid you are looking for… POSIX requires gids to be
process granular, but on Linux they are per-thread. Thus, this call only
changes the gid for the current thread, not the entire process even
though that is in violation of the POSIX standard.
For details on this distinction, see the C library vs. kernel differences in the manual page. This call implements the kernel behavior.