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author | Eelco Dolstra <edolstra@gmail.com> | 2017-04-06 18:40:19 +0200 |
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committer | Eelco Dolstra <edolstra@gmail.com> | 2017-04-06 18:40:19 +0200 |
commit | ba20730b3f7ad6b09aa86b66748df575e56d442e (patch) | |
tree | 90cf209d43d1fe35a35297c27b2ce864bdcb3480 /src/libstore/store-api.hh | |
parent | 963f2bf12b4098a3b46059a26d21cdfe27662cdd (diff) |
Implement RemoteStore::queryMissing()
This provides a significant speedup, e.g. 64 s -> 12 s for
nix-build --dry-run -I nixpkgs=channel:nixos-16.03 '<nixpkgs/nixos/tests/misc.nix>' -A test
on a cold local and CloudFront cache.
The alternative is to use lots of concurrent daemon connections but
that seems wasteful.
Diffstat (limited to 'src/libstore/store-api.hh')
-rw-r--r-- | src/libstore/store-api.hh | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libstore/store-api.hh b/src/libstore/store-api.hh index e07dec495..68c59a9f2 100644 --- a/src/libstore/store-api.hh +++ b/src/libstore/store-api.hh @@ -524,7 +524,7 @@ public: /* Given a set of paths that are to be built, return the set of derivations that will be built, and the set of output paths that will be substituted. */ - void queryMissing(const PathSet & targets, + virtual void queryMissing(const PathSet & targets, PathSet & willBuild, PathSet & willSubstitute, PathSet & unknown, unsigned long long & downloadSize, unsigned long long & narSize); |