_locking Constants

Syntax

#include <sys/locking.h>

Remarks

The mode argument in the call to the _locking function specifies the locking action to be performed.

The mode argument must be one of the following manifest constants.

_LK_LOCK Locks the specified bytes. If the bytes cannot be locked, the function tries again after 1 second. If, after 10 attempts, the bytes cannot be locked, the function returns an error.
_LK_RLCK Same as _LK_LOCK.
_LK_NBLCK Locks the specified bytes. If bytes cannot be locked, the function returns an error.
_LK_NBRLCK Same as _LK_NBLCK.
_LK_UNLCK Unlocks the specified bytes. (The bytes must have been previously locked.)

See Also

_locking
Global Constants