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#pragma once
#include <limits>
#include <string>
#include "store-api.hh"
namespace nix {
class Pipe;
class Pid;
struct FdSink;
struct FdSource;
template<typename T> class Pool;
/* FIXME: RemoteStore is a misnomer - should be something like
DaemonStore. */
class RemoteStore : public virtual Store
{
public:
RemoteStore(const Params & params);
/* Implementations of abstract store API methods. */
bool isValidPathUncached(const Path & path) override;
PathSet queryValidPaths(const PathSet & paths) override;
PathSet queryAllValidPaths() override;
void queryPathInfoUncached(const Path & path,
std::function<void(std::shared_ptr<ValidPathInfo>)> success,
std::function<void(std::exception_ptr exc)> failure) override;
void queryReferrers(const Path & path, PathSet & referrers) override;
PathSet queryValidDerivers(const Path & path) override;
PathSet queryDerivationOutputs(const Path & path) override;
StringSet queryDerivationOutputNames(const Path & path) override;
Path queryPathFromHashPart(const string & hashPart) override;
PathSet querySubstitutablePaths(const PathSet & paths) override;
void querySubstitutablePathInfos(const PathSet & paths,
SubstitutablePathInfos & infos) override;
void addToStore(const ValidPathInfo & info, const ref<std::string> & nar,
bool repair, bool dontCheckSigs,
std::shared_ptr<FSAccessor> accessor) override;
Path addToStore(const string & name, const Path & srcPath,
bool recursive = true, HashType hashAlgo = htSHA256,
PathFilter & filter = defaultPathFilter, bool repair = false) override;
Path addTextToStore(const string & name, const string & s,
const PathSet & references, bool repair = false) override;
void buildPaths(const PathSet & paths, BuildMode buildMode) override;
BuildResult buildDerivation(const Path & drvPath, const BasicDerivation & drv,
BuildMode buildMode) override;
void ensurePath(const Path & path) override;
void addTempRoot(const Path & path) override;
void addIndirectRoot(const Path & path) override;
void syncWithGC() override;
Roots findRoots() override;
void collectGarbage(const GCOptions & options, GCResults & results) override;
void optimiseStore() override;
bool verifyStore(bool checkContents, bool repair) override;
void addSignatures(const Path & storePath, const StringSet & sigs) override;
protected:
struct Connection
{
FdSink to;
FdSource from;
unsigned int daemonVersion;
virtual ~Connection();
void processStderr(Sink * sink = 0, Source * source = 0);
};
ref<Connection> openConnectionWrapper();
virtual ref<Connection> openConnection() = 0;
void initConnection(Connection & conn);
ref<Pool<Connection>> connections;
private:
std::atomic_bool failed{false};
void setOptions(Connection & conn);
};
class UDSRemoteStore : public LocalFSStore, public RemoteStore
{
public:
UDSRemoteStore(const Params & params);
std::string getUri() override;
private:
struct Connection : RemoteStore::Connection
{
AutoCloseFD fd;
};
ref<RemoteStore::Connection> openConnection() override;
};
}
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