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 | ||
| mips32 | ||
| mips64 | ||
| sys | ||
| Implies | ||
| Makefile | ||
| Versions | ||
| ____longjmp_chk.c | ||
| _test_and_set.c | ||
| clone.S | ||
| clone3.S | ||
| configure | ||
| configure.ac | ||
| dl-cache.h | ||
| errlist-compat-data.h | ||
| fxstat.c | ||
| getcontext.S | ||
| getrlimit64.c | ||
| kernel-features.h | ||
| kernel_rt_sigframe.h | ||
| kernel_sigaction.h | ||
| kernel_stat.h | ||
| kernel_termios.h | ||
| ldsodefs.h | ||
| libc-abis | ||
| lxstat.c | ||
| makecontext.S | ||
| mmap_info.h | ||
| readelflib.c | ||
| setcontext.S | ||
| setrlimit64.c | ||
| shlib-versions | ||
| sigcontextinfo.h | ||
| socket-constants-time64.h | ||
| struct_kernel_msqid64_ds.h | ||
| struct_kernel_semid64_ds.h | ||
| struct_kernel_shmid64_ds.h | ||
| swapcontext.S | ||
| syscalls.list | ||
| sysdep.h | ||
| ucontext_i.sym | ||
| ustat.c | ||
| vfork.S | ||
| xstat.c | ||
| xstatconv.c | ||
| xstatver.h | ||