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authorDavid Kalnischkies <david@kalnischkies.de>2015-03-30 20:47:13 +0200
committerDavid Kalnischkies <david@kalnischkies.de>2015-04-19 01:13:09 +0200
commit9224ce3d4d1ea0428a70e75134998e08aa45b1e6 (patch)
treea4afde96f9fd0fe9e1a3d14339f6e7146aeb59d3 /apt-pkg/contrib/crc-16.h
parent76cbc9abb2d09ee5b248dfaa24948ba016fb6dee (diff)
calculate only expected hashes in methods
Methods get told which hashes are expected by the acquire system, which means we can use this list to restrict what we calculate in the methods as any extra we are calculating is wasted effort as we can't compare it with anything anyway. Adding support for a new hash algorithm is therefore 'free' now and if a algorithm is no longer provided in a repository for a file, we automatically stop calculating it. In practice this results in a speed-up in Debian as we don't have SHA512 here (so far), so we practically stop calculating it.
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