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Make 'nix copy --to daemon' run in constant memory

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This commit is contained in:
Eelco Dolstra 2018-03-21 23:42:21 +01:00
parent 11898d6a37
commit 97002b684c
2 changed files with 4 additions and 5 deletions
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7
src/libstore/remote-store.cc
View file

@ -377,7 +377,7 @@ Path RemoteStore::queryPathFromHashPart(const string & hashPart)
}
void RemoteStore::addToStore(const ValidPathInfo & info, const ref<std::string> & nar,
void RemoteStore::addToStore(const ValidPathInfo & info, Source & source,
RepairFlag repair, CheckSigsFlag checkSigs, std::shared_ptr<FSAccessor> accessor)
{
auto conn(connections->get());
@ -388,8 +388,7 @@ void RemoteStore::addToStore(const ValidPathInfo & info, const ref<std::string>
StringSink sink;
sink << 1 // == path follows
;
assert(nar->size() % 8 == 0);
sink((unsigned char *) nar->data(), nar->size());
copyNAR(source, sink);
sink
<< exportMagic
<< info.path
@ -412,7 +411,7 @@ void RemoteStore::addToStore(const ValidPathInfo & info, const ref<std::string>
<< info.references << info.registrationTime << info.narSize
<< info.ultimate << info.sigs << info.ca
<< repair << !checkSigs;
conn->to(*nar);
copyNAR(source, conn->to);
conn->processStderr();
}
}

2
src/libstore/remote-store.hh
View file

@ -58,7 +58,7 @@ public:
void querySubstitutablePathInfos(const PathSet & paths,
SubstitutablePathInfos & infos) override;
void addToStore(const ValidPathInfo & info, const ref<std::string> & nar,
void addToStore(const ValidPathInfo & info, Source & nar,
RepairFlag repair, CheckSigsFlag checkSigs,
std::shared_ptr<FSAccessor> accessor) override;