forked from lix-project/lix
75989bdca7
The fact that queryPathInfo() is synchronous meant that we needed a thread for every concurrent binary cache lookup, even though they end up being handled by the same download thread. Requiring hundreds of threads is not a good idea. So now there is an asynchronous version of queryPathInfo() that takes a callback function to process the result. Similarly, enqueueDownload() now takes a callback rather than returning a future. Thus, a command like nix path-info --store https://cache.nixos.org/ -r /nix/store/slljrzwmpygy1daay14kjszsr9xix063-nixos-16.09beta231.dccf8c5 that returns 4941 paths now takes 1.87s using only 2 threads (the main thread and the downloader thread). (This is with a prewarmed CloudFront.)
112 lines
2.8 KiB
C++
112 lines
2.8 KiB
C++
#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 LocalFSStore
|
|
{
|
|
public:
|
|
|
|
RemoteStore(const Params & params, size_t maxConnections = std::numeric_limits<size_t>::max());
|
|
|
|
/* Implementations of abstract store API methods. */
|
|
|
|
std::string getUri() override;
|
|
|
|
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 std::string & nar,
|
|
bool repair, bool dontCheckSigs) 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;
|
|
|
|
private:
|
|
|
|
struct Connection
|
|
{
|
|
AutoCloseFD fd;
|
|
FdSink to;
|
|
FdSource from;
|
|
unsigned int daemonVersion;
|
|
|
|
~Connection();
|
|
|
|
void processStderr(Sink * sink = 0, Source * source = 0);
|
|
};
|
|
|
|
ref<Pool<Connection>> connections;
|
|
|
|
ref<Connection> openConnection();
|
|
|
|
void setOptions(ref<Connection> conn);
|
|
};
|
|
|
|
|
|
}
|