On 02/18/2011 12:30 PM, Jim Meyering wrote: >>> - if (doms->objs) >>> - virHashFree(doms->objs, virDomainObjListDeallocator); >>> + virHashFree(doms->objs, virDomainObjListDeallocator); >> >> I tried adding --name=virHashFree to the useless_free_options variable >> in cfg.mk, to see if that would prevent regressions. However, it >> appears that this two-argument free-like function is not picked up by >> the heuristics in the useless-if-before-free script (it only works on >> one-argument functions). > Right. useless-if-before-free deliberately detects only > one-argument free-like functions. An even better idea - as long as we're improving hash.h, why not fix things to pass the destructor in the Create call, rather than the Free call. Then freeing is a one-argument operation, using the destructor callback registered inside the virHash object, rather than a two-argument operation requiring the caller to pass in the destructor. At which point, we've defined away the problem of useless-if-before-free. -- Eric Blake eblake@xxxxxxxxxx +1-801-349-2682 Libvirt virtualization library http://libvirt.org
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