mirror of git://sourceware.org/git/glibc.git
e7190fc73d
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>
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| .. | ||
| bits | ||
| powerpc32 | ||
| powerpc64 | ||
| sys | ||
| Implies | ||
| Makefile | ||
| Versions | ||
| configure | ||
| configure.ac | ||
| cpu-features.c | ||
| cpu-features.h | ||
| dl-auxv.h | ||
| dl-cache.h | ||
| dl-support.c | ||
| elision-conf.c | ||
| elision-conf.h | ||
| elision-lock.c | ||
| elision-timed.c | ||
| elision-trylock.c | ||
| elision-unlock.c | ||
| get_timebase_freq.c | ||
| gettimeofday.c | ||
| htm.h | ||
| internal-ioctl.h | ||
| ipc_priv.h | ||
| kernel-features.h | ||
| kernel_sigaction.h | ||
| kernel_termios.h | ||
| ldd-rewrite.sed | ||
| libc-start.c | ||
| libc-start.h | ||
| libc-vdso.h | ||
| libpthread-compat.c | ||
| nldbl-abi.h | ||
| pointer_guard.h | ||
| pthread_attr_setstack.c | ||
| pthread_attr_setstacksize.c | ||
| readelflib.c | ||
| rt-sysdep.c | ||
| rtld_static_init.h | ||
| sigcontextinfo.h | ||
| socket-constants-time64.h | ||
| struct_kernel_shmid64_ds.h | ||
| syscall.S | ||
| sysconf.c | ||
| sysdep.c | ||
| sysdep.h | ||
| test-gettimebasefreq-static.c | ||
| test-gettimebasefreq.c | ||
| test-powerpc-linux-sysconf.c | ||
| time.c | ||
| tst-hwcap-tunables.c | ||
| xstatver.h | ||