Zbigniew Jędrzejewski-Szmek
8525bb369a
When repeatedly appending an object to a growing array, we would create a new array larger by one slot, insert all the old entries and the new element with ref count bumps into the new array, and then unref the old array. This would cause problems when building an array with more than a few thousand elements. If userdbctl is modified to construct an array, 'userdbctl --json=pretty group >/dev/null' with 31k groups: 0.74s (existing code) 102.17s (returning an array) 0.79s (with this patch) We append arrays in various places, so it seems nice to make this generally fast.
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