#pragma once

#include <string>

#include "store-api.hh"


namespace nix {


class Pipe;
class Pid;
struct FdSink;
struct FdSource;


class RemoteStore : public StoreAPI
{
public:

    RemoteStore();

    ~RemoteStore();

    /* Implementations of abstract store API methods. */

    bool isValidPath(const Path & path);

    PathSet queryValidPaths(const PathSet & paths);

    PathSet queryAllValidPaths();

    ValidPathInfo queryPathInfo(const Path & path);

    Hash queryPathHash(const Path & path);

    void queryReferences(const Path & path, PathSet & references);

    void queryReferrers(const Path & path, PathSet & referrers);

    Path queryDeriver(const Path & path);

    PathSet queryValidDerivers(const Path & path);

    PathSet queryDerivationOutputs(const Path & path);

    StringSet queryDerivationOutputNames(const Path & path);

    Path queryPathFromHashPart(const string & hashPart);

    PathSet querySubstitutablePaths(const PathSet & paths);

    void querySubstitutablePathInfos(const PathSet & paths,
        SubstitutablePathInfos & infos);

    Path addToStore(const string & name, const Path & srcPath,
        bool recursive = true, HashType hashAlgo = htSHA256,
        PathFilter & filter = defaultPathFilter, bool repair = false);

    Path addTextToStore(const string & name, const string & s,
        const PathSet & references, bool repair = false);

    void exportPath(const Path & path, bool sign,
        Sink & sink);

    Paths importPaths(bool requireSignature, Source & source);

    void buildPaths(const PathSet & paths, BuildMode buildMode);

    void ensurePath(const Path & path);

    void addTempRoot(const Path & path);

    void addIndirectRoot(const Path & path);

    void syncWithGC();

    Roots findRoots();

    void collectGarbage(const GCOptions & options, GCResults & results);

    PathSet queryFailedPaths();

    void clearFailedPaths(const PathSet & paths);

    void optimiseStore();

    bool verifyStore(bool checkContents, bool repair);
private:
    AutoCloseFD fdSocket;
    FdSink to;
    FdSource from;
    unsigned int daemonVersion;
    bool initialised;

    void openConnection(bool reserveSpace = true);

    void processStderr(Sink * sink = 0, Source * source = 0);

    void connectToDaemon();

    void setOptions();
};


}
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