Revision 3b7ed473
| ID | 3b7ed473b3e4c1449811d26f0458c5cebe3733a1 |
LockSet: make acquire() able to get the whole set
This new functionality makes it possible to acquire a whole set, by passing
"None" to the acquire() function as the list of elements. This will avoid new
additions to the set, and then acquire all the current elements. The list of
all elements acquired will be returned at the end.
Deletions can still happen during the acquire process and we'll deal with it by
just skipping the deleted elements: it's effectively as if they were deleted
before we called the function. After we've finished though we hold all the
elements, so no more deletes can be performed before we release them.
Any call to release() will then first of all release the "set-level" lock if
we're holding it, and then all or some of the locks we have.
Some new tests checks that this feature works as intended.
Reviewed-by: imsnah
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