Weihang Lo 01edb24d3c
feat(std): emulate flock for solaris via fcntl
Upstream Solaris flock emulation to libstd from cargo.

This is borrowed from
3b379fcc54/src/cargo/util/flock.rs (L502-L536)
which was implemented by an Oracle employee.
The code has been in cargo since 2022-12.

Python's `fcntl.flock` emulates like this as well:
c919d02ede/Modules/fcntlmodule.c (L337-L400)

We did the same thing in
0d0f4eac8b/compiler/rustc_data_structures/src/flock/unix.rs (L13-L39)
2025-09-07 00:05:13 -04:00
..
2025-09-04 14:17:31 +07:00
2025-09-05 17:01:07 -07:00