sys_flock (9) - Linux Manuals
sys_flock: flock system call.
NAME
sys_flock - flock system call.
SYNOPSIS
-
long sys_flock(unsigned int
fd, unsigned int cmd);
ARGUMENTS
fd
-
- the file descriptor to lock.
cmd
- the type of lock to apply.
DESCRIPTION
Apply a FL_FLOCK style lock to an open file descriptor. The cmd can be one of
LOCK_SH -- a shared lock.
LOCK_EX -- an exclusive lock.
LOCK_UN -- remove an existing lock.
LOCK_MAND -- a `mandatory' flock. This exists to emulate Windows Share Modes.
LOCK_MAND can be combined with LOCK_READ or LOCK_WRITE to allow other processes read and write access respectively.
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