devela::_dep::rustix::thread

Function set_thread_res_gid

pub fn set_thread_res_gid(rgid: Gid, egid: Gid, sgid: Gid) -> Result<(), Errno> ⓘ
Available on crate feature dep_rustix only.
Expand description

setresgid(rgid, egid, sgid)

§Warning

This is not the setresxid you are looking for… POSIX requires xids to be process granular, but on Linux they are per-thread. Thus, this call only changes the xid 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 and the notes in set_thread_gid. This call implements the kernel behavior.

§References