forked from lix-project/lix
162 lines
4.2 KiB
C++
162 lines
4.2 KiB
C++
#pragma once
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#include <limits>
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#include <string>
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#include "store-api.hh"
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namespace nix {
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class Pipe;
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class Pid;
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struct FdSink;
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struct FdSource;
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template<typename T> class Pool;
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struct ConnectionHandle;
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/* FIXME: RemoteStore is a misnomer - should be something like
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DaemonStore. */
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class RemoteStore : public virtual Store
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{
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public:
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const Setting<int> maxConnections{(Store*) this, 1,
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"max-connections", "maximum number of concurrent connections to the Nix daemon"};
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const Setting<unsigned int> maxConnectionAge{(Store*) this, std::numeric_limits<unsigned int>::max(),
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"max-connection-age", "number of seconds to reuse a connection"};
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virtual bool sameMachine() = 0;
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RemoteStore(const Params & params);
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/* Implementations of abstract store API methods. */
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bool isValidPathUncached(const Path & path) override;
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PathSet queryValidPaths(const PathSet & paths,
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SubstituteFlag maybeSubstitute = NoSubstitute) override;
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PathSet queryAllValidPaths() override;
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void queryPathInfoUncached(const Path & path,
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Callback<std::shared_ptr<const ValidPathInfo>> callback) noexcept override;
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void queryReferrers(const Path & path, PathSet & referrers) override;
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PathSet queryValidDerivers(const Path & path) override;
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PathSet queryDerivationOutputs(const Path & path) override;
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StringSet queryDerivationOutputNames(const Path & path) override;
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Path queryPathFromHashPart(const string & hashPart) override;
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PathSet querySubstitutablePaths(const PathSet & paths) override;
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void querySubstitutablePathInfos(const PathSet & paths,
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SubstitutablePathInfos & infos) override;
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void addToStore(const ValidPathInfo & info, Source & nar,
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RepairFlag repair, CheckSigsFlag checkSigs,
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std::shared_ptr<FSAccessor> accessor) override;
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Path addToStore(const string & name, const Path & srcPath,
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bool recursive = true, HashType hashAlgo = htSHA256,
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PathFilter & filter = defaultPathFilter, RepairFlag repair = NoRepair) override;
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Path addTextToStore(const string & name, const string & s,
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const PathSet & references, RepairFlag repair) override;
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void buildPaths(const PathSet & paths, BuildMode buildMode) override;
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BuildResult buildDerivation(const Path & drvPath, const BasicDerivation & drv,
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BuildMode buildMode) override;
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void ensurePath(const Path & path) override;
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void addTempRoot(const Path & path) override;
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void addIndirectRoot(const Path & path) override;
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void syncWithGC() override;
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Roots findRoots(bool censor) override;
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void collectGarbage(const GCOptions & options, GCResults & results) override;
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void optimiseStore() override;
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bool verifyStore(bool checkContents, RepairFlag repair) override;
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void addSignatures(const Path & storePath, const StringSet & sigs) override;
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void queryMissing(const PathSet & targets,
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PathSet & willBuild, PathSet & willSubstitute, PathSet & unknown,
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unsigned long long & downloadSize, unsigned long long & narSize) override;
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void connect() override;
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unsigned int getProtocol() override;
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void flushBadConnections();
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protected:
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struct Connection
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{
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AutoCloseFD fd;
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FdSink to;
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FdSource from;
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unsigned int daemonVersion;
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std::chrono::time_point<std::chrono::steady_clock> startTime;
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virtual ~Connection();
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std::exception_ptr processStderr(Sink * sink = 0, Source * source = 0);
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};
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ref<Connection> openConnectionWrapper();
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virtual ref<Connection> openConnection() = 0;
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void initConnection(Connection & conn);
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ref<Pool<Connection>> connections;
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virtual void setOptions(Connection & conn);
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ConnectionHandle getConnection();
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friend struct ConnectionHandle;
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private:
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std::atomic_bool failed{false};
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};
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class UDSRemoteStore : public LocalFSStore, public RemoteStore
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{
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public:
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UDSRemoteStore(const Params & params);
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UDSRemoteStore(std::string path, const Params & params);
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std::string getUri() override;
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bool sameMachine()
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{ return true; }
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private:
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ref<RemoteStore::Connection> openConnection() override;
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std::optional<std::string> path;
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};
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}
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