Docs » Autodocs » dos.library » SameLock
SameLock -- returns whether two locks are on the same object (V36)
value = SameLock(lock1, lock2)
D0 D1 D2
LONG SameLock(BPTR, BPTR)
Compares two locks. Returns LOCK_SAME if they are on the same object,
LOCK_SAME_VOLUME if on different objects on the same volume, and
LOCK_DIFFERENT if they are on different volumes. Always compare
for equality or non-equality with the results, in case new return
values are added.
lock1 - 1st lock for comparison
lock2 - 2nd lock for comparison
value - LOCK_SAME, LOCK_SAME_VOLUME, or LOCK_DIFFERENT
Should do more extensive checks for NULL against a real lock, checking
to see if the real lock is a lock on the root of the boot volume.
In V36, it would return LOCK_SAME_VOLUME for different volumes on the
same handler. Also, LOCK_SAME_VOLUME was LOCK_SAME_HANDLER (now
an obsolete define, see <dos/dos.h>).
<dos/dos.h>
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