mnt_free_lock ()

void
mnt_free_lock (struct libmnt_lock *ml);

Deallocates libmnt_lock. This function does not care about reference count. Don't use this function directly -- it's better to use mnt_unref_lock().

The reference counting is supported since util-linux v2.40.

mnt_lock_file ()

int
mnt_lock_file (struct libmnt_lock *ml);

Creates a lock file.

Note that when the lock is used by mnt_update_table() interface then libmount uses flock() for private library file /run/mount/utab.

mnt_new_lock ()

struct libmnt_lock *
mnt_new_lock (const char *datafile,
              pid_t id);

mnt_ref_lock ()

void
mnt_ref_lock (struct libmnt_lock *ml);

Increments reference counter.

Since: 2.40

mnt_unref_lock ()

void
mnt_unref_lock (struct libmnt_lock *ml);

De-increments reference counter, on zero the ml is automatically deallocated by mnt_free_lock).

mnt_unlock_file ()

void
mnt_unlock_file (struct libmnt_lock *ml);

Unlocks the file. The function could be called independently of the lock status (for example from exit(3)).

mnt_lock_block_signals ()

int
mnt_lock_block_signals (struct libmnt_lock *ml,
                        int enable);

Block/unblock signals when the lock is locked, the signals are not blocked by default.

struct libmnt_lock

struct libmnt_lock;

Stores information about the locked file