lix/src/libstore/uds-remote-store.cc

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2020-10-11 16:01:53 +00:00
#include "uds-remote-store.hh"
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <cstring>
2020-10-11 16:01:53 +00:00
namespace nix {
UDSRemoteStore::UDSRemoteStore(const Params & params)
: StoreConfig(params)
, LocalFSStoreConfig(params)
, RemoteStoreConfig(params)
, UDSRemoteStoreConfig(params)
, Store(params)
, LocalFSStore(params)
, RemoteStore(params)
{
}
UDSRemoteStore::UDSRemoteStore(
const std::string scheme,
std::string socket_path,
const Params & params)
: UDSRemoteStore(params)
{
path.emplace(socket_path);
}
std::string UDSRemoteStore::getUri()
{
if (path) {
return std::string("unix://") + *path;
} else {
return "daemon";
}
}
void UDSRemoteStore::Connection::closeWrite()
{
shutdown(fd.get(), SHUT_WR);
}
ref<RemoteStore::Connection> UDSRemoteStore::openConnection()
{
auto conn = make_ref<Connection>();
/* Connect to a daemon that does the privileged work for us. */
conn->fd = createUnixDomainSocket();
nix::connect(conn->fd.get(), path ? *path : settings.nixDaemonSocketFile);
conn->from.fd = conn->fd.get();
conn->to.fd = conn->fd.get();
conn->startTime = std::chrono::steady_clock::now();
return conn;
}
static RegisterStoreImplementation<UDSRemoteStore, UDSRemoteStoreConfig> regUDSRemoteStore;
}