mirror of
https://github.com/NixOS/nix.git
synced 2025-12-02 15:11:00 +01:00
113 lines
2.7 KiB
C++
113 lines
2.7 KiB
C++
#include "nix/store/uds-remote-store.hh"
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#include "nix/util/unix-domain-socket.hh"
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#include "nix/store/worker-protocol.hh"
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#include "nix/store/store-registration.hh"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#ifdef _WIN32
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# include <winsock2.h>
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# include <afunix.h>
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#else
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# include <sys/socket.h>
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# include <sys/un.h>
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#endif
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namespace nix {
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UDSRemoteStoreConfig::UDSRemoteStoreConfig(
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std::string_view scheme,
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std::string_view authority,
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const StoreReference::Params & params)
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: Store::Config{params}
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, LocalFSStore::Config{params}
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, RemoteStore::Config{params}
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, path{authority.empty() ? settings.nixDaemonSocketFile : authority}
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{
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if (uriSchemes().count(scheme) == 0) {
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throw UsageError("Scheme must be 'unix'");
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}
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}
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std::string UDSRemoteStoreConfig::doc()
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{
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return
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#include "uds-remote-store.md"
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;
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}
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// A bit gross that we now pass empty string but this is knowing that
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// empty string will later default to the same nixDaemonSocketFile. Why
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// don't we just wire it all through? I believe there are cases where it
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// will live reload so we want to continue to account for that.
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UDSRemoteStoreConfig::UDSRemoteStoreConfig(const Params & params)
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: UDSRemoteStoreConfig(*uriSchemes().begin(), "", params)
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{
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}
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UDSRemoteStore::UDSRemoteStore(ref<const Config> config)
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: Store{*config}
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, LocalFSStore{*config}
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, RemoteStore{*config}
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, config{config}
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{
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}
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std::string UDSRemoteStore::getUri()
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{
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return config->path == settings.nixDaemonSocketFile
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? // FIXME: Not clear why we return daemon here and not default
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// to settings.nixDaemonSocketFile
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//
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// unix:// with no path also works. Change what we return?
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"daemon"
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: std::string(*Config::uriSchemes().begin()) + "://" + config->path;
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}
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void UDSRemoteStore::Connection::closeWrite()
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{
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shutdown(toSocket(fd.get()), SHUT_WR);
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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 = nix::connect(config->path);
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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 UDSRemoteStore::addIndirectRoot(const Path & path)
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{
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auto conn(getConnection());
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conn->to << WorkerProto::Op::AddIndirectRoot << path;
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conn.processStderr();
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readInt(conn->from);
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}
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ref<Store> UDSRemoteStore::Config::openStore() const {
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return make_ref<UDSRemoteStore>(ref{shared_from_this()});
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}
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static RegisterStoreImplementation<UDSRemoteStore::Config> regUDSRemoteStore;
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}
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