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Pidfd enhancements #1447
Description
- Update pidfd constants and types (Linux 6.9-6.15) rust-lang/libc#4402
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PidfdFlags::THREAD = PIDFD_THREAD -
pidfd_send_signal(Add support for pidfd_send_signal #992) is inrustix::not_implemented::yetandrustix::process(Remove pidfd_send_signal from not_implemented #1448) -
PIDFD_SIGNAL_THREAD,PIDFD_SIGNAL_THREAD_GROUPandPIDFD_SIGNAL_PROCESS_GROUP.- Because the
rustix::process::pidfd_send_signalinterface does not expose an (empty) flags argument and adding one would be a breaking change, I suggest to deprecatedrustix::process::pidfd_send_signaland addrustix::process::pidfd_send_signal_{thread,thread_group,process_group}variants. This time with an empty flags for the future. - On the other hand this could require downstream code to switch between these variants to maybe a
rustix::process::pidfd_send_signal_with_flags(name tbd) is also a thing.pidfd_send_signal_to
- Because the
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PIDFD_SELFandPIDFD_SELF_PROCESSdescriptors implemented inrustix::processlikerustix::fs::CWDis implemented. -
PIDFD_GET_*_NAMESPACEioctls. Either as one function with an non-exhaustive enum argument or as separated for functions for each ioctl. -
PIDFD_GET_INFOioctl,pidfd_infostruct,PIDFD_INFO_*bitflags-
PIDFD_INFO_EXIT
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Activity
yshui commentedon Aug 7, 2025
would it be possible to support passing
siginfo_ttopidfd_send_signal?zeenix commentedon Oct 16, 2025
What about
SO_PEER_FDsupport?nixsupports it and it's very similar torustix::net::sockopt::socket_peercred. It's super important for the moden Linux userspace (systemd and services/apps above).rusty-snake commentedon Oct 16, 2025
This one #1474?
zeenix commentedon Oct 16, 2025
Ah yes. That's the one. :)