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Expose an async interface for queryRealisation

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Doesn’t change much so far because everything is still using it
synchronously, but should allow the binary cache to fetch stuff in
parallel
This commit is contained in:
regnat 2021-10-27 11:36:51 +02:00
parent 5b2aa61f1b
commit 96670ed216
12 changed files with 138 additions and 55 deletions
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2
src/libstore/build/drv-output-substitution-goal.hh
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@ -20,7 +20,7 @@ private:
// The realisation corresponding to the given output id.
// Will be filled once we can get it.
std::optional<Realisation> outputInfo;
std::shared_ptr<const Realisation> outputInfo;
/* The remaining substituters. */
std::list<ref<Store>> subs;

7
src/libstore/build/local-derivation-goal.cc
View file

@ -1224,13 +1224,14 @@ struct RestrictedStore : public virtual RestrictedStoreConfig, public virtual Lo
// corresponds to an allowed derivation
{ throw Error("registerDrvOutput"); }
std::optional<const Realisation> queryRealisation(const DrvOutput & id) override
void queryRealisationUncached(const DrvOutput & id,
Callback<std::shared_ptr<const Realisation>> callback) noexcept override
// XXX: This should probably be allowed if the realisation corresponds to
// an allowed derivation
{
if (!goal.isAllowed(id))
throw InvalidPath("cannot query an unknown output id '%s' in recursive Nix", id.to_string());
return next->queryRealisation(id);
callback(nullptr);
next->queryRealisation(id, std::move(callback));
}
void buildPaths(const std::vector<DerivedPath> & paths, BuildMode buildMode, std::shared_ptr<Store> evalStore) override