diff options
Diffstat (limited to 'sysdeps/unix')
| -rw-r--r-- | sysdeps/unix/sysv/linux/bits/fcntl-linux.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/bits/fcntl-linux.h b/sysdeps/unix/sysv/linux/bits/fcntl-linux.h index 527eb5c8b5..e224dab58b 100644 --- a/sysdeps/unix/sysv/linux/bits/fcntl-linux.h +++ b/sysdeps/unix/sysv/linux/bits/fcntl-linux.h @@ -117,6 +117,23 @@ # define F_SETLKW64 14 /* Set record locking info (blocking). */ #endif +/* open file description locks. + + Usually record locks held by a process are released on *any* close and are + not inherited across a fork. + + These cmd values will set locks that conflict with process-associated record + locks, but are "owned" by the opened file description, not the process. + This means that they are inherited across fork or clone with CLONE_FILES + like BSD (flock) locks, and they are only released automatically when the + last reference to the the file description against which they were acquired + is put. */ +#ifdef __USE_GNU +# define F_OFD_GETLK 36 +# define F_OFD_SETLK 37 +# define F_OFD_SETLKW 38 +#endif + #ifdef __USE_LARGEFILE64 # define O_LARGEFILE __O_LARGEFILE #endif |