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| author | Adhemerval Zanella Netto <adhemerval.zanella@linaro.org> | 2023-08-24 13:42:19 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2023-09-05 13:08:59 -0300 |
| commit | e7190fc73dbc8a1f8f94f8ccacd9a190fa5e609c (patch) | |
| tree | 0070895e116c7250463b90b643f8727466bfbb5b /NEWS | |
| parent | 0d6f9f626521678f330f8bfee89e1cdb7e2b1062 (diff) | |
| download | glibc-e7190fc73dbc8a1f8f94f8ccacd9a190fa5e609c.zip glibc-e7190fc73dbc8a1f8f94f8ccacd9a190fa5e609c.tar.gz glibc-e7190fc73dbc8a1f8f94f8ccacd9a190fa5e609c.tar.bz2 | |
linux: Add pidfd_getpid
This interface allows to obtain the associated process ID from the
process file descriptor. It is done by parsing the procps fdinfo
information. Its prototype is:
pid_t pidfd_getpid (int fd)
It returns the associated pid or -1 in case of an error and sets the
errno accordingly. The possible errno values are those from open, read,
and close (used on procps parsing), along with:
- EBADF if the FD is negative, does not have a PID associated, or if
the fdinfo fields contain a value larger than pid_t.
- EREMOTE if the PID is in a separate namespace.
- ESRCH if the process is already terminated.
Checked on x86_64-linux-gnu on Linux 4.15 (no CLONE_PIDFD or waitid
support), Linux 5.4 (full support), and Linux 6.2.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 4 |
1 files changed, 4 insertions, 0 deletions
@@ -27,6 +27,10 @@ Major new features: The pidfd functionality avoids the issue of PID reuse with the traditional posix_spawn interface. +* On Linux, the pidfd_getpid function has been added. It allows retrieving + the process ID associated with the process file descriptor created by + pid_spawn, fork_np, or pidfd_open. + Deprecated and removed features, and other changes affecting compatibility: [Add deprecations, removals and changes affecting compatibility here] |