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#pragma once
///@file
#include <limits>
#include <string>
#include "store-api.hh"
#include "gc-store.hh"
#include "log-store.hh"
namespace nix {
class Pipe;
class Pid;
struct FdSink;
struct FdSource;
template<typename T> class Pool;
struct RemoteStoreConfig : virtual StoreConfig
{
using StoreConfig::StoreConfig;
const Setting<int> maxConnections{this, 1, "max-connections",
"Maximum number of concurrent connections to the Nix daemon."};
const Setting<unsigned int> maxConnectionAge{this,
std::numeric_limits<unsigned int>::max(),
"max-connection-age",
"Maximum age of a connection before it is closed."};
};
/**
* \todo RemoteStore is a misnomer - should be something like
* DaemonStore.
*/
class RemoteStore : public virtual RemoteStoreConfig,
public virtual Store,
public virtual GcStore,
public virtual LogStore
{
public:
RemoteStore(const Params & params);
/* Implementations of abstract store API methods. */
bool isValidPathUncached(const StorePath & path) override;
StorePathSet queryValidPaths(const StorePathSet & paths,
SubstituteFlag maybeSubstitute = NoSubstitute) override;
StorePathSet queryAllValidPaths() override;
std::shared_ptr<const ValidPathInfo> queryPathInfoUncached(const StorePath & path) override;
void queryReferrers(const StorePath & path, StorePathSet & referrers) override;
StorePathSet queryValidDerivers(const StorePath & path) override;
StorePathSet queryDerivationOutputs(const StorePath & path) override;
std::map<std::string, std::optional<StorePath>> queryPartialDerivationOutputMap(const StorePath & path, Store * evalStore = nullptr) override;
std::optional<StorePath> queryPathFromHashPart(const std::string & hashPart) override;
StorePathSet querySubstitutablePaths(const StorePathSet & paths) override;
void querySubstitutablePathInfos(const StorePathCAMap & paths,
SubstitutablePathInfos & infos) override;
/**
* Add a content-addressable store path. `dump` will be drained.
*/
ref<const ValidPathInfo> addCAToStore(
Source & dump,
std::string_view name,
ContentAddressMethod caMethod,
HashType hashType,
const StorePathSet & references,
RepairFlag repair);
/**
* Add a content-addressable store path. Does not support references. `dump` will be drained.
*/
StorePath addToStoreFromDump(Source & dump, std::string_view name,
FileIngestionMethod method = FileIngestionMethod::Recursive, HashType hashAlgo = htSHA256, RepairFlag repair = NoRepair, const StorePathSet & references = StorePathSet()) override;
void addToStore(const ValidPathInfo & info, Source & nar,
RepairFlag repair, CheckSigsFlag checkSigs) override;
void addMultipleToStore(
Source & source,
RepairFlag repair,
CheckSigsFlag checkSigs) override;
void addMultipleToStore(
PathsSource & pathsToCopy,
Activity & act,
RepairFlag repair,
CheckSigsFlag checkSigs) override;
StorePath addTextToStore(
std::string_view name,
std::string_view s,
const StorePathSet & references,
RepairFlag repair) override;
void registerDrvOutput(const Realisation & info) override;
std::shared_ptr<const Realisation> queryRealisationUncached(const DrvOutput &) override;
void buildPaths(const std::vector<DerivedPath> & paths, BuildMode buildMode, std::shared_ptr<Store> evalStore) override;
std::vector<KeyedBuildResult> buildPathsWithResults(
const std::vector<DerivedPath> & paths,
BuildMode buildMode,
std::shared_ptr<Store> evalStore) override;
BuildResult buildDerivation(const StorePath & drvPath, const BasicDerivation & drv,
BuildMode buildMode) override;
void ensurePath(const StorePath & path) override;
void addTempRoot(const StorePath & path) override;
Roots findRoots(bool censor) override;
void collectGarbage(const GCOptions & options, GCResults & results) override;
void optimiseStore() override;
bool verifyStore(bool checkContents, RepairFlag repair) override;
/**
* The default instance would schedule the work on the client side, but
* for consistency with `buildPaths` and `buildDerivation` it should happen
* on the remote side.
*
* We make this fail for now so we can add implement this properly later
* without it being a breaking change.
*/
void repairPath(const StorePath & path) override
{ unsupported("repairPath"); }
void addSignatures(const StorePath & storePath, const StringSet & sigs) override;
void queryMissing(const std::vector<DerivedPath> & targets,
StorePathSet & willBuild, StorePathSet & willSubstitute, StorePathSet & unknown,
uint64_t & downloadSize, uint64_t & narSize) override;
void addBuildLog(const StorePath & drvPath, std::string_view log) override;
std::optional<std::string> getVersion() override;
void connect() override;
unsigned int getProtocol() override;
std::optional<TrustedFlag> isTrustedClient() override;
struct Connection;
ref<Connection> openConnectionWrapper();
protected:
virtual ref<Connection> openConnection() = 0;
void initConnection(Connection & conn);
ref<Pool<Connection>> connections;
virtual void setOptions(Connection & conn);
void setOptions() override;
struct ConnectionHandle;
ConnectionHandle getConnection();
friend struct ConnectionHandle;
virtual ref<FSAccessor> getFSAccessor() override;
virtual WireFormatGenerator narFromPath(const StorePath & path) override;
private:
std::atomic_bool failed{false};
void copyDrvsFromEvalStore(
const std::vector<DerivedPath> & paths,
std::shared_ptr<Store> evalStore);
};
}
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