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addMultipleToStore(): Move pathsToCopy

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This allows RemoteStore::addMultipleToStore() to free the Source
objects early (and in particular the associated sinkToSource()
buffers). This should fix #7359. For example, memory consumption of

  nix copy --derivation --to ssh-ng://localhost?remote-store=/tmp/nix --derivation --no-check-sigs \
    /nix/store/4p9xmfgnvclqpii8pxqcwcvl9bxqy2xf-nixos-system-...drv

went from 353 MB to 74 MB.
This commit is contained in:
Eelco Dolstra 2025-01-20 14:23:02 +01:00
parent bcb92a5fa0
commit cc838e8181
4 changed files with 9 additions and 6 deletions
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2
src/libstore/store-api.hh
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@ -425,7 +425,7 @@ public:
CheckSigsFlag checkSigs = CheckSigs);
virtual void addMultipleToStore(
PathsSource & pathsToCopy,
PathsSource && pathsToCopy,
Activity & act,
RepairFlag repair = NoRepair,
CheckSigsFlag checkSigs = CheckSigs);