projects / thirdparty / util-linux.git / blame
| Commit | Line | Data |
|---|---|---|
| faeb1b64 KZ |
1 | /* |
| 2 | * No copyright is claimed. This code is in the public domain; do with | |
| 3 | * it what you wish. | |
| 4 | */ | |
| 6e6b9a1d SK |
5 | #ifndef UTIL_LINUX_PIDFD_UTILS |
| 6 | #define UTIL_LINUX_PIDFD_UTILS | |
| 7 | ||
| 319563bf | 8 | #ifdef HAVE_SYS_SYSCALL_H |
| 6e6b9a1d | 9 | # include <sys/syscall.h> |
| 7f45939f MM |
10 | |
| 11 | /* | |
| 12 | * If the kernel headers are too old to provide the syscall numbers, let's | |
| 13 | * define them ourselves. This can be helpful while cross-compiling. | |
| 14 | */ | |
| 15 | #ifndef __NR_pidfd_send_signal | |
| 16 | #define __NR_pidfd_send_signal 424 | |
| 17 | #define SYS_pidfd_send_signal __NR_pidfd_send_signal | |
| 18 | #endif | |
| 19 | #ifndef __NR_pidfd_open | |
| 20 | #define __NR_pidfd_open 434 | |
| 21 | #define SYS_pidfd_open __NR_pidfd_open | |
| 22 | #endif | |
| 23 | ||
| 0a4035ff | 24 | # if defined(SYS_pidfd_send_signal) && defined(SYS_pidfd_open) |
| 84732a88 KR |
25 | # ifdef HAVE_SYS_PIDFD_H |
| 26 | # include <sys/pidfd.h> | |
| 27 | # endif | |
| 3cfde037 | 28 | # include <sys/types.h> |
| 0a4035ff | 29 | # ifndef HAVE_PIDFD_SEND_SIGNAL |
| 97af76c4 | 30 | # include <sys/wait.h> |
| 6e6b9a1d SK |
31 | static inline int pidfd_send_signal(int pidfd, int sig, siginfo_t *info, |
| 32 | unsigned int flags) | |
| 33 | { | |
| 34 | return syscall(SYS_pidfd_send_signal, pidfd, sig, info, flags); | |
| 35 | } | |
| 3cfde037 | 36 | # endif |
| b6c3de88 | 37 | |
| 0a4035ff | 38 | # ifndef HAVE_PIDFD_OPEN |
| 6e6b9a1d SK |
39 | static inline int pidfd_open(pid_t pid, unsigned int flags) |
| 40 | { | |
| 41 | return syscall(SYS_pidfd_open, pid, flags); | |
| 42 | } | |
| 3cfde037 | 43 | # endif |
| b6c3de88 | 44 | |
| 3cfde037 | 45 | # define UL_HAVE_PIDFD 1 |
| 6e6b9a1d | 46 | |
| 3cfde037 | 47 | # endif /* SYS_pidfd_send_signal */ |
| 319563bf | 48 | #endif /* HAVE_SYS_SYSCALL_H */ |
| b6c3de88 | 49 | #endif /* UTIL_LINUX_PIDFD_UTILS */ |