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57399bfc0e
Following what is outlined in #10766 refactor the uds-remote-store such that the member variables (state) don't live in the store itself but in the config object. Additionally, the config object includes a new necessary constructor that takes a scheme & authority. Tests are commented out because of linking errors with the current config system. When there is a new config system we can reenable them. Co-authored-by: John Ericson <John.Ericson@Obsidian.Systems>
111 lines
2.6 KiB
C++
111 lines
2.6 KiB
C++
#include "uds-remote-store.hh"
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#include "unix-domain-socket.hh"
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#include "worker-protocol.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 Params & params)
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: StoreConfig(params)
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, LocalFSStoreConfig(params)
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, RemoteStoreConfig(params)
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, path{authority.empty() ? settings.nixDaemonSocketFile : authority}
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{
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if (scheme != UDSRemoteStoreConfig::scheme) {
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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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UDSRemoteStore::UDSRemoteStore(const Params & params)
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: UDSRemoteStore(scheme, "", params)
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{}
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UDSRemoteStore::UDSRemoteStore(std::string_view scheme, std::string_view authority, const Params & params)
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: StoreConfig(params)
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, LocalFSStoreConfig(params)
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, RemoteStoreConfig(params)
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, UDSRemoteStoreConfig(scheme, authority, 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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std::string UDSRemoteStore::getUri()
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{
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return 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(scheme) + "://" + 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 = createUnixDomainSocket();
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nix::connect(toSocket(conn->fd.get()), 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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static RegisterStoreImplementation<UDSRemoteStore, UDSRemoteStoreConfig> regUDSRemoteStore;
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}
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