Re: Locking objects in an array

Patricia Shanahan wrote:


     One way to approach it would be with recursion. I'll illust=

with a List and an Iterator, although they're by no means the only way
to keep track:

        List<Thing> things = new ...;
        for (int dr = 0; dr < rspan; ++dr) {
            for (int dc = 0; dc < cspan; ++dc)
                things.add(lattice[r+dr][c+dc]);
        }
        doDirtyDeed(things.iterator(), things);

        ...

        void doDirtyDeed(Iterator<Thing> it, List<Thing> things) =

            if (it.hasNext()) {
                synchronized(it.next()) {
                    doDirtyDeed(it, things);
                }
            }
            else {
                // all the Things' locks are now held
                // do things to Things in "things"
            }
        }