Split out uds-remote-store.{cc.hh}
This commit is contained in:
John Ericson
parent
38e3897162
commit
15fdb7cc6b
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@ -12,16 +12,6 @@
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#include "logging.hh"
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#include "callback.hh"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <cstring>
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namespace nix {
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namespace worker_proto {
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@ -125,69 +115,6 @@ ref<RemoteStore::Connection> RemoteStore::openConnectionWrapper()
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}
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UDSRemoteStore::UDSRemoteStore(const Params & params)
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: StoreConfig(params)
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, Store(params)
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, LocalFSStore(params)
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, RemoteStore(params)
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{
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}
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UDSRemoteStore::UDSRemoteStore(
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const std::string scheme,
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std::string socket_path,
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const Params & params)
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: UDSRemoteStore(params)
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{
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path.emplace(socket_path);
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}
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std::string UDSRemoteStore::getUri()
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{
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if (path) {
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return std::string("unix://") + *path;
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} else {
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return "daemon";
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}
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}
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ref<RemoteStore::Connection> UDSRemoteStore::openConnection()
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{
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auto conn = make_ref<Connection>();
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/* Connect to a daemon that does the privileged work for us. */
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conn->fd = socket(PF_UNIX, SOCK_STREAM
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#ifdef SOCK_CLOEXEC
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| SOCK_CLOEXEC
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#endif
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, 0);
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if (!conn->fd)
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throw SysError("cannot create Unix domain socket");
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closeOnExec(conn->fd.get());
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string socketPath = path ? *path : settings.nixDaemonSocketFile;
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struct sockaddr_un addr;
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addr.sun_family = AF_UNIX;
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if (socketPath.size() + 1 >= sizeof(addr.sun_path))
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throw Error("socket path '%1%' is too long", socketPath);
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strcpy(addr.sun_path, socketPath.c_str());
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if (::connect(conn->fd.get(), (struct sockaddr *) &addr, sizeof(addr)) == -1)
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throw SysError("cannot connect to daemon at '%1%'", socketPath);
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conn->from.fd = conn->fd.get();
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conn->to.fd = conn->fd.get();
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conn->startTime = std::chrono::steady_clock::now();
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return conn;
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}
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void RemoteStore::initConnection(Connection & conn)
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{
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/* Send the magic greeting, check for the reply. */
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@ -1012,6 +939,4 @@ void ConnectionHandle::withFramedSink(std::function<void(Sink &sink)> fun)
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}
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static RegisterStoreImplementation<UDSRemoteStore, UDSRemoteStoreConfig> regUDSRemoteStore;
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}
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@ -4,7 +4,6 @@
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#include <string>
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#include "store-api.hh"
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#include "local-fs-store.hh"
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namespace nix {
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@ -156,49 +155,5 @@ private:
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};
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struct UDSRemoteStoreConfig : virtual LocalFSStoreConfig, virtual RemoteStoreConfig
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{
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UDSRemoteStoreConfig(const Store::Params & params)
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: StoreConfig(params)
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, LocalFSStoreConfig(params)
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, RemoteStoreConfig(params)
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{
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}
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UDSRemoteStoreConfig()
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: UDSRemoteStoreConfig(Store::Params({}))
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{
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}
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const std::string name() override { return "Local Daemon Store"; }
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};
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class UDSRemoteStore : public LocalFSStore, public RemoteStore, public virtual UDSRemoteStoreConfig
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{
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public:
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UDSRemoteStore(const Params & params);
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UDSRemoteStore(const std::string scheme, std::string path, const Params & params);
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std::string getUri() override;
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static std::set<std::string> uriSchemes()
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{ return {"unix"}; }
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bool sameMachine() override
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{ return true; }
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ref<FSAccessor> getFSAccessor() override
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{ return LocalFSStore::getFSAccessor(); }
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void narFromPath(const StorePath & path, Sink & sink) override
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{ LocalFSStore::narFromPath(path, sink); }
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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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@ -1011,7 +1011,7 @@ Derivation Store::readDerivation(const StorePath & drvPath)
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#include "local-store.hh"
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#include "remote-store.hh"
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#include "uds-remote-store.hh"
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namespace nix {
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@ -1,16 +1,4 @@
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#include "serialise.hh"
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#include "util.hh"
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#include "remote-fs-accessor.hh"
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#include "remote-store.hh"
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#include "worker-protocol.hh"
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#include "archive.hh"
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#include "affinity.hh"
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#include "globals.hh"
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#include "derivations.hh"
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#include "pool.hh"
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#include "finally.hh"
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#include "logging.hh"
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#include "callback.hh"
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#include "uds-remote-store.hh"
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#include <sys/types.h>
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#include <sys/stat.h>
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@ -22,109 +10,9 @@
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#include <cstring>
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namespace nix {
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namespace worker_proto {
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std::string read(const Store & store, Source & from, Phantom<std::string> _)
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{
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return readString(from);
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}
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void write(const Store & store, Sink & out, const std::string & str)
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{
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out << str;
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}
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StorePath read(const Store & store, Source & from, Phantom<StorePath> _)
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{
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return store.parseStorePath(readString(from));
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}
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void write(const Store & store, Sink & out, const StorePath & storePath)
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{
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out << store.printStorePath(storePath);
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}
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ContentAddress read(const Store & store, Source & from, Phantom<ContentAddress> _)
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{
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return parseContentAddress(readString(from));
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}
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void write(const Store & store, Sink & out, const ContentAddress & ca)
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{
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out << renderContentAddress(ca);
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}
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std::optional<StorePath> read(const Store & store, Source & from, Phantom<std::optional<StorePath>> _)
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{
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auto s = readString(from);
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return s == "" ? std::optional<StorePath> {} : store.parseStorePath(s);
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}
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void write(const Store & store, Sink & out, const std::optional<StorePath> & storePathOpt)
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{
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out << (storePathOpt ? store.printStorePath(*storePathOpt) : "");
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}
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std::optional<ContentAddress> read(const Store & store, Source & from, Phantom<std::optional<ContentAddress>> _)
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{
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return parseContentAddressOpt(readString(from));
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}
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void write(const Store & store, Sink & out, const std::optional<ContentAddress> & caOpt)
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{
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out << (caOpt ? renderContentAddress(*caOpt) : "");
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}
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}
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/* TODO: Separate these store impls into different files, give them better names */
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RemoteStore::RemoteStore(const Params & params)
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: Store(params)
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, RemoteStoreConfig(params)
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, connections(make_ref<Pool<Connection>>(
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std::max(1, (int) maxConnections),
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[this]() {
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auto conn = openConnectionWrapper();
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try {
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initConnection(*conn);
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} catch (...) {
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failed = true;
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throw;
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}
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return conn;
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},
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[this](const ref<Connection> & r) {
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return
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r->to.good()
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&& r->from.good()
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&& std::chrono::duration_cast<std::chrono::seconds>(
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std::chrono::steady_clock::now() - r->startTime).count() < maxConnectionAge;
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}
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))
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{
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}
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ref<RemoteStore::Connection> RemoteStore::openConnectionWrapper()
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{
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if (failed)
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throw Error("opening a connection to remote store '%s' previously failed", getUri());
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try {
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return openConnection();
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} catch (...) {
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failed = true;
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throw;
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}
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}
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UDSRemoteStore::UDSRemoteStore(const Params & params)
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: StoreConfig(params)
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, Store(params)
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@ -188,830 +76,6 @@ ref<RemoteStore::Connection> UDSRemoteStore::openConnection()
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}
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void RemoteStore::initConnection(Connection & conn)
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{
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/* Send the magic greeting, check for the reply. */
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try {
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conn.to << WORKER_MAGIC_1;
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conn.to.flush();
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unsigned int magic = readInt(conn.from);
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if (magic != WORKER_MAGIC_2) throw Error("protocol mismatch");
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conn.from >> conn.daemonVersion;
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if (GET_PROTOCOL_MAJOR(conn.daemonVersion) != GET_PROTOCOL_MAJOR(PROTOCOL_VERSION))
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throw Error("Nix daemon protocol version not supported");
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if (GET_PROTOCOL_MINOR(conn.daemonVersion) < 10)
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throw Error("the Nix daemon version is too old");
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conn.to << PROTOCOL_VERSION;
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if (GET_PROTOCOL_MINOR(conn.daemonVersion) >= 14) {
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int cpu = sameMachine() && settings.lockCPU ? lockToCurrentCPU() : -1;
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if (cpu != -1)
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conn.to << 1 << cpu;
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else
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conn.to << 0;
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}
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if (GET_PROTOCOL_MINOR(conn.daemonVersion) >= 11)
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conn.to << false;
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auto ex = conn.processStderr();
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if (ex) std::rethrow_exception(ex);
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}
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catch (Error & e) {
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throw Error("cannot open connection to remote store '%s': %s", getUri(), e.what());
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}
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setOptions(conn);
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}
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void RemoteStore::setOptions(Connection & conn)
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{
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conn.to << wopSetOptions
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<< settings.keepFailed
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<< settings.keepGoing
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<< settings.tryFallback
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<< verbosity
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<< settings.maxBuildJobs
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<< settings.maxSilentTime
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<< true
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<< (settings.verboseBuild ? lvlError : lvlVomit)
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<< 0 // obsolete log type
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<< 0 /* obsolete print build trace */
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<< settings.buildCores
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<< settings.useSubstitutes;
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if (GET_PROTOCOL_MINOR(conn.daemonVersion) >= 12) {
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std::map<std::string, Config::SettingInfo> overrides;
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globalConfig.getSettings(overrides, true);
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overrides.erase(settings.keepFailed.name);
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overrides.erase(settings.keepGoing.name);
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overrides.erase(settings.tryFallback.name);
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overrides.erase(settings.maxBuildJobs.name);
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overrides.erase(settings.maxSilentTime.name);
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overrides.erase(settings.buildCores.name);
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overrides.erase(settings.useSubstitutes.name);
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overrides.erase(loggerSettings.showTrace.name);
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conn.to << overrides.size();
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for (auto & i : overrides)
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conn.to << i.first << i.second.value;
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}
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auto ex = conn.processStderr();
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if (ex) std::rethrow_exception(ex);
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}
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/* A wrapper around Pool<RemoteStore::Connection>::Handle that marks
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the connection as bad (causing it to be closed) if a non-daemon
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exception is thrown before the handle is closed. Such an exception
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causes a deviation from the expected protocol and therefore a
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desynchronization between the client and daemon. */
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struct ConnectionHandle
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{
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Pool<RemoteStore::Connection>::Handle handle;
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bool daemonException = false;
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ConnectionHandle(Pool<RemoteStore::Connection>::Handle && handle)
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: handle(std::move(handle))
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{ }
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ConnectionHandle(ConnectionHandle && h)
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: handle(std::move(h.handle))
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{ }
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~ConnectionHandle()
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{
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if (!daemonException && std::uncaught_exceptions()) {
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handle.markBad();
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debug("closing daemon connection because of an exception");
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}
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}
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RemoteStore::Connection * operator -> () { return &*handle; }
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void processStderr(Sink * sink = 0, Source * source = 0, bool flush = true)
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{
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auto ex = handle->processStderr(sink, source, flush);
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if (ex) {
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daemonException = true;
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std::rethrow_exception(ex);
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}
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}
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void withFramedSink(std::function<void(Sink & sink)> fun);
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};
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ConnectionHandle RemoteStore::getConnection()
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{
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return ConnectionHandle(connections->get());
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}
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bool RemoteStore::isValidPathUncached(const StorePath & path)
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{
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auto conn(getConnection());
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conn->to << wopIsValidPath << printStorePath(path);
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conn.processStderr();
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return readInt(conn->from);
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}
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StorePathSet RemoteStore::queryValidPaths(const StorePathSet & paths, SubstituteFlag maybeSubstitute)
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{
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auto conn(getConnection());
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if (GET_PROTOCOL_MINOR(conn->daemonVersion) < 12) {
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StorePathSet res;
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for (auto & i : paths)
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if (isValidPath(i)) res.insert(i);
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return res;
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} else {
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conn->to << wopQueryValidPaths;
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worker_proto::write(*this, conn->to, paths);
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conn.processStderr();
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return worker_proto::read(*this, conn->from, Phantom<StorePathSet> {});
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}
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}
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StorePathSet RemoteStore::queryAllValidPaths()
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{
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auto conn(getConnection());
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conn->to << wopQueryAllValidPaths;
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conn.processStderr();
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return worker_proto::read(*this, conn->from, Phantom<StorePathSet> {});
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}
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StorePathSet RemoteStore::querySubstitutablePaths(const StorePathSet & paths)
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{
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auto conn(getConnection());
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if (GET_PROTOCOL_MINOR(conn->daemonVersion) < 12) {
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StorePathSet res;
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for (auto & i : paths) {
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conn->to << wopHasSubstitutes << printStorePath(i);
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conn.processStderr();
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if (readInt(conn->from)) res.insert(i);
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}
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return res;
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} else {
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conn->to << wopQuerySubstitutablePaths;
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worker_proto::write(*this, conn->to, paths);
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conn.processStderr();
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return worker_proto::read(*this, conn->from, Phantom<StorePathSet> {});
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}
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}
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void RemoteStore::querySubstitutablePathInfos(const StorePathCAMap & pathsMap, SubstitutablePathInfos & infos)
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{
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if (pathsMap.empty()) return;
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auto conn(getConnection());
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if (GET_PROTOCOL_MINOR(conn->daemonVersion) < 12) {
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for (auto & i : pathsMap) {
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SubstitutablePathInfo info;
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conn->to << wopQuerySubstitutablePathInfo << printStorePath(i.first);
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conn.processStderr();
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unsigned int reply = readInt(conn->from);
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if (reply == 0) continue;
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auto deriver = readString(conn->from);
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if (deriver != "")
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info.deriver = parseStorePath(deriver);
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info.references = worker_proto::read(*this, conn->from, Phantom<StorePathSet> {});
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info.downloadSize = readLongLong(conn->from);
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info.narSize = readLongLong(conn->from);
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infos.insert_or_assign(i.first, std::move(info));
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}
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} else {
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conn->to << wopQuerySubstitutablePathInfos;
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if (GET_PROTOCOL_MINOR(conn->daemonVersion) < 22) {
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StorePathSet paths;
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for (auto & path : pathsMap)
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paths.insert(path.first);
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worker_proto::write(*this, conn->to, paths);
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} else
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worker_proto::write(*this, conn->to, pathsMap);
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conn.processStderr();
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size_t count = readNum<size_t>(conn->from);
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for (size_t n = 0; n < count; n++) {
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SubstitutablePathInfo & info(infos[parseStorePath(readString(conn->from))]);
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auto deriver = readString(conn->from);
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if (deriver != "")
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info.deriver = parseStorePath(deriver);
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info.references = worker_proto::read(*this, conn->from, Phantom<StorePathSet> {});
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info.downloadSize = readLongLong(conn->from);
|
||||
info.narSize = readLongLong(conn->from);
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
ref<const ValidPathInfo> RemoteStore::readValidPathInfo(ConnectionHandle & conn, const StorePath & path)
|
||||
{
|
||||
auto deriver = readString(conn->from);
|
||||
auto narHash = Hash::parseAny(readString(conn->from), htSHA256);
|
||||
auto info = make_ref<ValidPathInfo>(path, narHash);
|
||||
if (deriver != "") info->deriver = parseStorePath(deriver);
|
||||
info->references = worker_proto::read(*this, conn->from, Phantom<StorePathSet> {});
|
||||
conn->from >> info->registrationTime >> info->narSize;
|
||||
if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 16) {
|
||||
conn->from >> info->ultimate;
|
||||
info->sigs = readStrings<StringSet>(conn->from);
|
||||
info->ca = parseContentAddressOpt(readString(conn->from));
|
||||
}
|
||||
return info;
|
||||
}
|
||||
|
||||
|
||||
void RemoteStore::queryPathInfoUncached(const StorePath & path,
|
||||
Callback<std::shared_ptr<const ValidPathInfo>> callback) noexcept
|
||||
{
|
||||
try {
|
||||
std::shared_ptr<const ValidPathInfo> info;
|
||||
{
|
||||
auto conn(getConnection());
|
||||
conn->to << wopQueryPathInfo << printStorePath(path);
|
||||
try {
|
||||
conn.processStderr();
|
||||
} catch (Error & e) {
|
||||
// Ugly backwards compatibility hack.
|
||||
if (e.msg().find("is not valid") != std::string::npos)
|
||||
throw InvalidPath(e.info());
|
||||
throw;
|
||||
}
|
||||
if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 17) {
|
||||
bool valid; conn->from >> valid;
|
||||
if (!valid) throw InvalidPath("path '%s' is not valid", printStorePath(path));
|
||||
}
|
||||
info = readValidPathInfo(conn, path);
|
||||
}
|
||||
callback(std::move(info));
|
||||
} catch (...) { callback.rethrow(); }
|
||||
}
|
||||
|
||||
|
||||
void RemoteStore::queryReferrers(const StorePath & path,
|
||||
StorePathSet & referrers)
|
||||
{
|
||||
auto conn(getConnection());
|
||||
conn->to << wopQueryReferrers << printStorePath(path);
|
||||
conn.processStderr();
|
||||
for (auto & i : worker_proto::read(*this, conn->from, Phantom<StorePathSet> {}))
|
||||
referrers.insert(i);
|
||||
}
|
||||
|
||||
|
||||
StorePathSet RemoteStore::queryValidDerivers(const StorePath & path)
|
||||
{
|
||||
auto conn(getConnection());
|
||||
conn->to << wopQueryValidDerivers << printStorePath(path);
|
||||
conn.processStderr();
|
||||
return worker_proto::read(*this, conn->from, Phantom<StorePathSet> {});
|
||||
}
|
||||
|
||||
|
||||
StorePathSet RemoteStore::queryDerivationOutputs(const StorePath & path)
|
||||
{
|
||||
auto conn(getConnection());
|
||||
if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 0x16) {
|
||||
return Store::queryDerivationOutputs(path);
|
||||
}
|
||||
conn->to << wopQueryDerivationOutputs << printStorePath(path);
|
||||
conn.processStderr();
|
||||
return worker_proto::read(*this, conn->from, Phantom<StorePathSet> {});
|
||||
}
|
||||
|
||||
|
||||
std::map<std::string, std::optional<StorePath>> RemoteStore::queryPartialDerivationOutputMap(const StorePath & path)
|
||||
{
|
||||
if (GET_PROTOCOL_MINOR(getProtocol()) >= 0x16) {
|
||||
auto conn(getConnection());
|
||||
conn->to << wopQueryDerivationOutputMap << printStorePath(path);
|
||||
conn.processStderr();
|
||||
return worker_proto::read(*this, conn->from, Phantom<std::map<std::string, std::optional<StorePath>>> {});
|
||||
} else {
|
||||
// Fallback for old daemon versions.
|
||||
// For floating-CA derivations (and their co-dependencies) this is an
|
||||
// under-approximation as it only returns the paths that can be inferred
|
||||
// from the derivation itself (and not the ones that are known because
|
||||
// the have been built), but as old stores don't handle floating-CA
|
||||
// derivations this shouldn't matter
|
||||
auto derivation = readDerivation(path);
|
||||
auto outputsWithOptPaths = derivation.outputsAndOptPaths(*this);
|
||||
std::map<std::string, std::optional<StorePath>> ret;
|
||||
for (auto & [outputName, outputAndPath] : outputsWithOptPaths) {
|
||||
ret.emplace(outputName, outputAndPath.second);
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
std::optional<StorePath> RemoteStore::queryPathFromHashPart(const std::string & hashPart)
|
||||
{
|
||||
auto conn(getConnection());
|
||||
conn->to << wopQueryPathFromHashPart << hashPart;
|
||||
conn.processStderr();
|
||||
Path path = readString(conn->from);
|
||||
if (path.empty()) return {};
|
||||
return parseStorePath(path);
|
||||
}
|
||||
|
||||
|
||||
ref<const ValidPathInfo> RemoteStore::addCAToStore(
|
||||
Source & dump,
|
||||
const string & name,
|
||||
ContentAddressMethod caMethod,
|
||||
const StorePathSet & references,
|
||||
RepairFlag repair)
|
||||
{
|
||||
std::optional<ConnectionHandle> conn_(getConnection());
|
||||
auto & conn = *conn_;
|
||||
|
||||
if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 25) {
|
||||
|
||||
conn->to
|
||||
<< wopAddToStore
|
||||
<< name
|
||||
<< renderContentAddressMethod(caMethod);
|
||||
worker_proto::write(*this, conn->to, references);
|
||||
conn->to << repair;
|
||||
|
||||
conn.withFramedSink([&](Sink & sink) {
|
||||
dump.drainInto(sink);
|
||||
});
|
||||
|
||||
auto path = parseStorePath(readString(conn->from));
|
||||
return readValidPathInfo(conn, path);
|
||||
}
|
||||
else {
|
||||
if (repair) throw Error("repairing is not supported when building through the Nix daemon protocol < 1.25");
|
||||
|
||||
std::visit(overloaded {
|
||||
[&](TextHashMethod thm) -> void {
|
||||
std::string s = dump.drain();
|
||||
conn->to << wopAddTextToStore << name << s;
|
||||
worker_proto::write(*this, conn->to, references);
|
||||
conn.processStderr();
|
||||
},
|
||||
[&](FixedOutputHashMethod fohm) -> void {
|
||||
conn->to
|
||||
<< wopAddToStore
|
||||
<< name
|
||||
<< ((fohm.hashType == htSHA256 && fohm.fileIngestionMethod == FileIngestionMethod::Recursive) ? 0 : 1) /* backwards compatibility hack */
|
||||
<< (fohm.fileIngestionMethod == FileIngestionMethod::Recursive ? 1 : 0)
|
||||
<< printHashType(fohm.hashType);
|
||||
|
||||
try {
|
||||
conn->to.written = 0;
|
||||
conn->to.warn = true;
|
||||
connections->incCapacity();
|
||||
{
|
||||
Finally cleanup([&]() { connections->decCapacity(); });
|
||||
if (fohm.fileIngestionMethod == FileIngestionMethod::Recursive) {
|
||||
dump.drainInto(conn->to);
|
||||
} else {
|
||||
std::string contents = dump.drain();
|
||||
dumpString(contents, conn->to);
|
||||
}
|
||||
}
|
||||
conn->to.warn = false;
|
||||
conn.processStderr();
|
||||
} catch (SysError & e) {
|
||||
/* Daemon closed while we were sending the path. Probably OOM
|
||||
or I/O error. */
|
||||
if (e.errNo == EPIPE)
|
||||
try {
|
||||
conn.processStderr();
|
||||
} catch (EndOfFile & e) { }
|
||||
throw;
|
||||
}
|
||||
|
||||
}
|
||||
}, caMethod);
|
||||
auto path = parseStorePath(readString(conn->from));
|
||||
// Release our connection to prevent a deadlock in queryPathInfo().
|
||||
conn_.reset();
|
||||
return queryPathInfo(path);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
StorePath RemoteStore::addToStoreFromDump(Source & dump, const string & name,
|
||||
FileIngestionMethod method, HashType hashType, RepairFlag repair)
|
||||
{
|
||||
StorePathSet references;
|
||||
return addCAToStore(dump, name, FixedOutputHashMethod{ .fileIngestionMethod = method, .hashType = hashType }, references, repair)->path;
|
||||
}
|
||||
|
||||
|
||||
void RemoteStore::addToStore(const ValidPathInfo & info, Source & source,
|
||||
RepairFlag repair, CheckSigsFlag checkSigs)
|
||||
{
|
||||
auto conn(getConnection());
|
||||
|
||||
if (GET_PROTOCOL_MINOR(conn->daemonVersion) < 18) {
|
||||
conn->to << wopImportPaths;
|
||||
|
||||
auto source2 = sinkToSource([&](Sink & sink) {
|
||||
sink << 1 // == path follows
|
||||
;
|
||||
copyNAR(source, sink);
|
||||
sink
|
||||
<< exportMagic
|
||||
<< printStorePath(info.path);
|
||||
worker_proto::write(*this, sink, info.references);
|
||||
sink
|
||||
<< (info.deriver ? printStorePath(*info.deriver) : "")
|
||||
<< 0 // == no legacy signature
|
||||
<< 0 // == no path follows
|
||||
;
|
||||
});
|
||||
|
||||
conn.processStderr(0, source2.get());
|
||||
|
||||
auto importedPaths = worker_proto::read(*this, conn->from, Phantom<StorePathSet> {});
|
||||
assert(importedPaths.size() <= 1);
|
||||
}
|
||||
|
||||
else {
|
||||
conn->to << wopAddToStoreNar
|
||||
<< printStorePath(info.path)
|
||||
<< (info.deriver ? printStorePath(*info.deriver) : "")
|
||||
<< info.narHash.to_string(Base16, false);
|
||||
worker_proto::write(*this, conn->to, info.references);
|
||||
conn->to << info.registrationTime << info.narSize
|
||||
<< info.ultimate << info.sigs << renderContentAddress(info.ca)
|
||||
<< repair << !checkSigs;
|
||||
|
||||
if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 23) {
|
||||
conn.withFramedSink([&](Sink & sink) {
|
||||
copyNAR(source, sink);
|
||||
});
|
||||
} else if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 21) {
|
||||
conn.processStderr(0, &source);
|
||||
} else {
|
||||
copyNAR(source, conn->to);
|
||||
conn.processStderr(0, nullptr);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
StorePath RemoteStore::addTextToStore(const string & name, const string & s,
|
||||
const StorePathSet & references, RepairFlag repair)
|
||||
{
|
||||
StringSource source(s);
|
||||
return addCAToStore(source, name, TextHashMethod{}, references, repair)->path;
|
||||
}
|
||||
|
||||
|
||||
void RemoteStore::buildPaths(const std::vector<StorePathWithOutputs> & drvPaths, BuildMode buildMode)
|
||||
{
|
||||
auto conn(getConnection());
|
||||
conn->to << wopBuildPaths;
|
||||
assert(GET_PROTOCOL_MINOR(conn->daemonVersion) >= 13);
|
||||
Strings ss;
|
||||
for (auto & p : drvPaths)
|
||||
ss.push_back(p.to_string(*this));
|
||||
conn->to << ss;
|
||||
if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 15)
|
||||
conn->to << buildMode;
|
||||
else
|
||||
/* Old daemons did not take a 'buildMode' parameter, so we
|
||||
need to validate it here on the client side. */
|
||||
if (buildMode != bmNormal)
|
||||
throw Error("repairing or checking is not supported when building through the Nix daemon");
|
||||
conn.processStderr();
|
||||
readInt(conn->from);
|
||||
}
|
||||
|
||||
|
||||
BuildResult RemoteStore::buildDerivation(const StorePath & drvPath, const BasicDerivation & drv,
|
||||
BuildMode buildMode)
|
||||
{
|
||||
auto conn(getConnection());
|
||||
conn->to << wopBuildDerivation << printStorePath(drvPath);
|
||||
writeDerivation(conn->to, *this, drv);
|
||||
conn->to << buildMode;
|
||||
conn.processStderr();
|
||||
BuildResult res;
|
||||
unsigned int status;
|
||||
conn->from >> status >> res.errorMsg;
|
||||
res.status = (BuildResult::Status) status;
|
||||
return res;
|
||||
}
|
||||
|
||||
|
||||
void RemoteStore::ensurePath(const StorePath & path)
|
||||
{
|
||||
auto conn(getConnection());
|
||||
conn->to << wopEnsurePath << printStorePath(path);
|
||||
conn.processStderr();
|
||||
readInt(conn->from);
|
||||
}
|
||||
|
||||
|
||||
void RemoteStore::addTempRoot(const StorePath & path)
|
||||
{
|
||||
auto conn(getConnection());
|
||||
conn->to << wopAddTempRoot << printStorePath(path);
|
||||
conn.processStderr();
|
||||
readInt(conn->from);
|
||||
}
|
||||
|
||||
|
||||
void RemoteStore::addIndirectRoot(const Path & path)
|
||||
{
|
||||
auto conn(getConnection());
|
||||
conn->to << wopAddIndirectRoot << path;
|
||||
conn.processStderr();
|
||||
readInt(conn->from);
|
||||
}
|
||||
|
||||
|
||||
void RemoteStore::syncWithGC()
|
||||
{
|
||||
auto conn(getConnection());
|
||||
conn->to << wopSyncWithGC;
|
||||
conn.processStderr();
|
||||
readInt(conn->from);
|
||||
}
|
||||
|
||||
|
||||
Roots RemoteStore::findRoots(bool censor)
|
||||
{
|
||||
auto conn(getConnection());
|
||||
conn->to << wopFindRoots;
|
||||
conn.processStderr();
|
||||
size_t count = readNum<size_t>(conn->from);
|
||||
Roots result;
|
||||
while (count--) {
|
||||
Path link = readString(conn->from);
|
||||
auto target = parseStorePath(readString(conn->from));
|
||||
result[std::move(target)].emplace(link);
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
void RemoteStore::collectGarbage(const GCOptions & options, GCResults & results)
|
||||
{
|
||||
auto conn(getConnection());
|
||||
|
||||
conn->to
|
||||
<< wopCollectGarbage << options.action;
|
||||
worker_proto::write(*this, conn->to, options.pathsToDelete);
|
||||
conn->to << options.ignoreLiveness
|
||||
<< options.maxFreed
|
||||
/* removed options */
|
||||
<< 0 << 0 << 0;
|
||||
|
||||
conn.processStderr();
|
||||
|
||||
results.paths = readStrings<PathSet>(conn->from);
|
||||
results.bytesFreed = readLongLong(conn->from);
|
||||
readLongLong(conn->from); // obsolete
|
||||
|
||||
{
|
||||
auto state_(Store::state.lock());
|
||||
state_->pathInfoCache.clear();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void RemoteStore::optimiseStore()
|
||||
{
|
||||
auto conn(getConnection());
|
||||
conn->to << wopOptimiseStore;
|
||||
conn.processStderr();
|
||||
readInt(conn->from);
|
||||
}
|
||||
|
||||
|
||||
bool RemoteStore::verifyStore(bool checkContents, RepairFlag repair)
|
||||
{
|
||||
auto conn(getConnection());
|
||||
conn->to << wopVerifyStore << checkContents << repair;
|
||||
conn.processStderr();
|
||||
return readInt(conn->from);
|
||||
}
|
||||
|
||||
|
||||
void RemoteStore::addSignatures(const StorePath & storePath, const StringSet & sigs)
|
||||
{
|
||||
auto conn(getConnection());
|
||||
conn->to << wopAddSignatures << printStorePath(storePath) << sigs;
|
||||
conn.processStderr();
|
||||
readInt(conn->from);
|
||||
}
|
||||
|
||||
|
||||
void RemoteStore::queryMissing(const std::vector<StorePathWithOutputs> & targets,
|
||||
StorePathSet & willBuild, StorePathSet & willSubstitute, StorePathSet & unknown,
|
||||
uint64_t & downloadSize, uint64_t & narSize)
|
||||
{
|
||||
{
|
||||
auto conn(getConnection());
|
||||
if (GET_PROTOCOL_MINOR(conn->daemonVersion) < 19)
|
||||
// Don't hold the connection handle in the fallback case
|
||||
// to prevent a deadlock.
|
||||
goto fallback;
|
||||
conn->to << wopQueryMissing;
|
||||
Strings ss;
|
||||
for (auto & p : targets)
|
||||
ss.push_back(p.to_string(*this));
|
||||
conn->to << ss;
|
||||
conn.processStderr();
|
||||
willBuild = worker_proto::read(*this, conn->from, Phantom<StorePathSet> {});
|
||||
willSubstitute = worker_proto::read(*this, conn->from, Phantom<StorePathSet> {});
|
||||
unknown = worker_proto::read(*this, conn->from, Phantom<StorePathSet> {});
|
||||
conn->from >> downloadSize >> narSize;
|
||||
return;
|
||||
}
|
||||
|
||||
fallback:
|
||||
return Store::queryMissing(targets, willBuild, willSubstitute,
|
||||
unknown, downloadSize, narSize);
|
||||
}
|
||||
|
||||
|
||||
void RemoteStore::connect()
|
||||
{
|
||||
auto conn(getConnection());
|
||||
}
|
||||
|
||||
|
||||
unsigned int RemoteStore::getProtocol()
|
||||
{
|
||||
auto conn(connections->get());
|
||||
return conn->daemonVersion;
|
||||
}
|
||||
|
||||
|
||||
void RemoteStore::flushBadConnections()
|
||||
{
|
||||
connections->flushBad();
|
||||
}
|
||||
|
||||
|
||||
RemoteStore::Connection::~Connection()
|
||||
{
|
||||
try {
|
||||
to.flush();
|
||||
} catch (...) {
|
||||
ignoreException();
|
||||
}
|
||||
}
|
||||
|
||||
void RemoteStore::narFromPath(const StorePath & path, Sink & sink)
|
||||
{
|
||||
auto conn(connections->get());
|
||||
conn->to << wopNarFromPath << printStorePath(path);
|
||||
conn->processStderr();
|
||||
copyNAR(conn->from, sink);
|
||||
}
|
||||
|
||||
ref<FSAccessor> RemoteStore::getFSAccessor()
|
||||
{
|
||||
return make_ref<RemoteFSAccessor>(ref<Store>(shared_from_this()));
|
||||
}
|
||||
|
||||
static Logger::Fields readFields(Source & from)
|
||||
{
|
||||
Logger::Fields fields;
|
||||
size_t size = readInt(from);
|
||||
for (size_t n = 0; n < size; n++) {
|
||||
auto type = (decltype(Logger::Field::type)) readInt(from);
|
||||
if (type == Logger::Field::tInt)
|
||||
fields.push_back(readNum<uint64_t>(from));
|
||||
else if (type == Logger::Field::tString)
|
||||
fields.push_back(readString(from));
|
||||
else
|
||||
throw Error("got unsupported field type %x from Nix daemon", (int) type);
|
||||
}
|
||||
return fields;
|
||||
}
|
||||
|
||||
|
||||
std::exception_ptr RemoteStore::Connection::processStderr(Sink * sink, Source * source, bool flush)
|
||||
{
|
||||
if (flush)
|
||||
to.flush();
|
||||
|
||||
while (true) {
|
||||
|
||||
auto msg = readNum<uint64_t>(from);
|
||||
|
||||
if (msg == STDERR_WRITE) {
|
||||
string s = readString(from);
|
||||
if (!sink) throw Error("no sink");
|
||||
(*sink)(s);
|
||||
}
|
||||
|
||||
else if (msg == STDERR_READ) {
|
||||
if (!source) throw Error("no source");
|
||||
size_t len = readNum<size_t>(from);
|
||||
auto buf = std::make_unique<unsigned char[]>(len);
|
||||
writeString(buf.get(), source->read(buf.get(), len), to);
|
||||
to.flush();
|
||||
}
|
||||
|
||||
else if (msg == STDERR_ERROR) {
|
||||
if (GET_PROTOCOL_MINOR(daemonVersion) >= 26) {
|
||||
return std::make_exception_ptr(readError(from));
|
||||
} else {
|
||||
string error = readString(from);
|
||||
unsigned int status = readInt(from);
|
||||
return std::make_exception_ptr(Error(status, error));
|
||||
}
|
||||
}
|
||||
|
||||
else if (msg == STDERR_NEXT)
|
||||
printError(chomp(readString(from)));
|
||||
|
||||
else if (msg == STDERR_START_ACTIVITY) {
|
||||
auto act = readNum<ActivityId>(from);
|
||||
auto lvl = (Verbosity) readInt(from);
|
||||
auto type = (ActivityType) readInt(from);
|
||||
auto s = readString(from);
|
||||
auto fields = readFields(from);
|
||||
auto parent = readNum<ActivityId>(from);
|
||||
logger->startActivity(act, lvl, type, s, fields, parent);
|
||||
}
|
||||
|
||||
else if (msg == STDERR_STOP_ACTIVITY) {
|
||||
auto act = readNum<ActivityId>(from);
|
||||
logger->stopActivity(act);
|
||||
}
|
||||
|
||||
else if (msg == STDERR_RESULT) {
|
||||
auto act = readNum<ActivityId>(from);
|
||||
auto type = (ResultType) readInt(from);
|
||||
auto fields = readFields(from);
|
||||
logger->result(act, type, fields);
|
||||
}
|
||||
|
||||
else if (msg == STDERR_LAST)
|
||||
break;
|
||||
|
||||
else
|
||||
throw Error("got unknown message type %x from Nix daemon", msg);
|
||||
}
|
||||
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
void ConnectionHandle::withFramedSink(std::function<void(Sink &sink)> fun)
|
||||
{
|
||||
(*this)->to.flush();
|
||||
|
||||
std::exception_ptr ex;
|
||||
|
||||
/* Handle log messages / exceptions from the remote on a
|
||||
separate thread. */
|
||||
std::thread stderrThread([&]()
|
||||
{
|
||||
try {
|
||||
processStderr(nullptr, nullptr, false);
|
||||
} catch (...) {
|
||||
ex = std::current_exception();
|
||||
}
|
||||
});
|
||||
|
||||
Finally joinStderrThread([&]()
|
||||
{
|
||||
if (stderrThread.joinable()) {
|
||||
stderrThread.join();
|
||||
if (ex) {
|
||||
try {
|
||||
std::rethrow_exception(ex);
|
||||
} catch (...) {
|
||||
ignoreException();
|
||||
}
|
||||
}
|
||||
}
|
||||
});
|
||||
|
||||
{
|
||||
FramedSink sink((*this)->to, ex);
|
||||
fun(sink);
|
||||
sink.flush();
|
||||
}
|
||||
|
||||
stderrThread.join();
|
||||
if (ex)
|
||||
std::rethrow_exception(ex);
|
||||
|
||||
}
|
||||
|
||||
static RegisterStoreImplementation<UDSRemoteStore, UDSRemoteStoreConfig> regUDSRemoteStore;
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,161 +1,10 @@
|
|||
#pragma once
|
||||
|
||||
#include <limits>
|
||||
#include <string>
|
||||
|
||||
#include "store-api.hh"
|
||||
#include "remote-store.hh"
|
||||
#include "local-fs-store.hh"
|
||||
|
||||
|
||||
namespace nix {
|
||||
|
||||
|
||||
class Pipe;
|
||||
class Pid;
|
||||
struct FdSink;
|
||||
struct FdSource;
|
||||
template<typename T> class Pool;
|
||||
struct ConnectionHandle;
|
||||
|
||||
struct RemoteStoreConfig : virtual StoreConfig
|
||||
{
|
||||
using StoreConfig::StoreConfig;
|
||||
|
||||
const Setting<int> maxConnections{(StoreConfig*) this, 1,
|
||||
"max-connections", "maximum number of concurrent connections to the Nix daemon"};
|
||||
|
||||
const Setting<unsigned int> maxConnectionAge{(StoreConfig*) this, std::numeric_limits<unsigned int>::max(),
|
||||
"max-connection-age", "number of seconds to reuse a connection"};
|
||||
};
|
||||
|
||||
/* FIXME: RemoteStore is a misnomer - should be something like
|
||||
DaemonStore. */
|
||||
class RemoteStore : public virtual Store, public virtual RemoteStoreConfig
|
||||
{
|
||||
public:
|
||||
|
||||
virtual bool sameMachine() = 0;
|
||||
|
||||
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;
|
||||
|
||||
void queryPathInfoUncached(const StorePath & path,
|
||||
Callback<std::shared_ptr<const ValidPathInfo>> callback) noexcept 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) 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,
|
||||
const string & name,
|
||||
ContentAddressMethod caMethod,
|
||||
const StorePathSet & references,
|
||||
RepairFlag repair);
|
||||
|
||||
/* Add a content-addressable store path. Does not support references. `dump` will be drained. */
|
||||
StorePath addToStoreFromDump(Source & dump, const string & name,
|
||||
FileIngestionMethod method = FileIngestionMethod::Recursive, HashType hashAlgo = htSHA256, RepairFlag repair = NoRepair) override;
|
||||
|
||||
void addToStore(const ValidPathInfo & info, Source & nar,
|
||||
RepairFlag repair, CheckSigsFlag checkSigs) override;
|
||||
|
||||
StorePath addTextToStore(const string & name, const string & s,
|
||||
const StorePathSet & references, RepairFlag repair) override;
|
||||
|
||||
void buildPaths(const std::vector<StorePathWithOutputs> & paths, BuildMode buildMode) override;
|
||||
|
||||
BuildResult buildDerivation(const StorePath & drvPath, const BasicDerivation & drv,
|
||||
BuildMode buildMode) override;
|
||||
|
||||
void ensurePath(const StorePath & path) override;
|
||||
|
||||
void addTempRoot(const StorePath & path) override;
|
||||
|
||||
void addIndirectRoot(const Path & path) override;
|
||||
|
||||
void syncWithGC() override;
|
||||
|
||||
Roots findRoots(bool censor) override;
|
||||
|
||||
void collectGarbage(const GCOptions & options, GCResults & results) override;
|
||||
|
||||
void optimiseStore() override;
|
||||
|
||||
bool verifyStore(bool checkContents, RepairFlag repair) override;
|
||||
|
||||
void addSignatures(const StorePath & storePath, const StringSet & sigs) override;
|
||||
|
||||
void queryMissing(const std::vector<StorePathWithOutputs> & targets,
|
||||
StorePathSet & willBuild, StorePathSet & willSubstitute, StorePathSet & unknown,
|
||||
uint64_t & downloadSize, uint64_t & narSize) override;
|
||||
|
||||
void connect() override;
|
||||
|
||||
unsigned int getProtocol() override;
|
||||
|
||||
void flushBadConnections();
|
||||
|
||||
struct Connection
|
||||
{
|
||||
AutoCloseFD fd;
|
||||
FdSink to;
|
||||
FdSource from;
|
||||
unsigned int daemonVersion;
|
||||
std::chrono::time_point<std::chrono::steady_clock> startTime;
|
||||
|
||||
virtual ~Connection();
|
||||
|
||||
std::exception_ptr processStderr(Sink * sink = 0, Source * source = 0, bool flush = true);
|
||||
};
|
||||
|
||||
ref<Connection> openConnectionWrapper();
|
||||
|
||||
protected:
|
||||
|
||||
virtual ref<Connection> openConnection() = 0;
|
||||
|
||||
void initConnection(Connection & conn);
|
||||
|
||||
ref<Pool<Connection>> connections;
|
||||
|
||||
virtual void setOptions(Connection & conn);
|
||||
|
||||
ConnectionHandle getConnection();
|
||||
|
||||
friend struct ConnectionHandle;
|
||||
|
||||
virtual ref<FSAccessor> getFSAccessor() override;
|
||||
|
||||
virtual void narFromPath(const StorePath & path, Sink & sink) override;
|
||||
|
||||
ref<const ValidPathInfo> readValidPathInfo(ConnectionHandle & conn, const StorePath & path);
|
||||
|
||||
private:
|
||||
|
||||
std::atomic_bool failed{false};
|
||||
|
||||
};
|
||||
|
||||
struct UDSRemoteStoreConfig : virtual LocalFSStoreConfig, virtual RemoteStoreConfig
|
||||
{
|
||||
UDSRemoteStoreConfig(const Store::Params & params)
|
||||
|
|
@ -200,5 +49,4 @@ private:
|
|||
std::optional<std::string> path;
|
||||
};
|
||||
|
||||
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue