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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2022-01-28 16:59:42 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2022-05-17 10:33:07 -0300 |
| commit | 32dd8c251a431c90451092653f0231a4ad2665e5 (patch) | |
| tree | 5a40d64d21c00b50f5e5a3d253ec79363202fb3c /sysdeps/unix/sysv/linux/sys/pidfd.h | |
| parent | 97f5d19c45799e3abedef771430b5562f1b8764f (diff) | |
| download | glibc-32dd8c251a431c90451092653f0231a4ad2665e5.zip glibc-32dd8c251a431c90451092653f0231a4ad2665e5.tar.gz glibc-32dd8c251a431c90451092653f0231a4ad2665e5.tar.bz2 | |
linux: Add pidfd_getfd
This was added on Linux 5.6 (8649c322f75c96e7ced2fec201e123b2b073bf09)
as a way to retrieve a file descriptors for another process though
pidfd (created either with CLONE_PIDFD or pidfd_getfd). The
functionality is similar to recvmmsg SCM_RIGHTS.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'sysdeps/unix/sysv/linux/sys/pidfd.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/sys/pidfd.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/sys/pidfd.h b/sysdeps/unix/sysv/linux/sys/pidfd.h index dab2710..7194fc2 100644 --- a/sysdeps/unix/sysv/linux/sys/pidfd.h +++ b/sysdeps/unix/sysv/linux/sys/pidfd.h @@ -30,4 +30,12 @@ as 0. */ extern int pidfd_open (__pid_t __pid, unsigned int __flags) __THROW; +/* Duplicates an existing file descriptor TARGETFD in the process referred + by the PIDFD file descriptor PIDFD. + + The FLAGS argument is reserved for future use, it must be specified + as 0. */ +extern int pidfd_getfd (int __pidfd, int __targetfd, + unsigned int __flags) __THROW; + #endif /* _PIDFD_H */ |