20aed3398d
"
This is hopefully the last large refactoring on the way of UDF.
In UDF we have to convert internal types to Lua and back. Currently
almost all our types and hidden in types.cc and expose functionality
via virtual functions. While it should be possible to add a
convert_{to|from}_lua virtual functions, that seems like a bad design.
In compilers, the type definition is normally public and different
passes know how to reason about each type. The alias analysis knows
about int and floats, not the other way around.
This patch series is inspired by both the LLVM RTTI
(https://www.llvm.org/docs/HowToSetUpLLVMStyleRTTI.html) and
std::variant.
The series makes the types public, adds a visit function and converts
the various virtual methods to just use visit. As a small example of
why this is useful, it then moves a bit of cql3 and json specific
logic out of types.cc and types.hh. In a similar way, the UDF code
will be able to used visit to convert objects to Lua.
In comparison with the previous versions, this series doesn't require the intermediate step of converting void* to data_value& in a few member functions.
This version also has fewer double dispatches I a am fairly confident has all the tools for avoiding all double dispatches.
"
* 'simplify-types-v3' of https://github.com/espindola/scylla: (80 commits)
types: Move abstract_type visit to a header
types: Move uuid_type_impl to a header
types: Move inet_addr_type_impl to a header
types: Move varint_type_impl to a header
types: Move timeuuid_type_impl to a header
types: Move date_type_impl to a header
types: Move bytes_type_impl to a header
types: Move utf8_type_impl to a header
types: Move ascii_type_impl to a header
types: Move string_type_impl to a header
types: Move time_type_impl to a header
types: Move simple_date_type_impl to a header
types: Move timestamp_type_impl to a header
types: Move duration_type_impl to a header
types: Move decimal_type_impl to a header
types: Move floating point types to a header
types: Move boolean_type_impl to a header
types: Move integer types to a header
types: Move integer_type_impl to a header
types: Move simple_type_impl to a header
...
1681 lines
73 KiB
C++
1681 lines
73 KiB
C++
/*
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* Copyright (C) 2015 ScyllaDB
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*/
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/*
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* This file is part of Scylla.
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*
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* Scylla is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Scylla is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "server.hh"
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#include <boost/bimap/unordered_set_of.hpp>
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#include <boost/range/irange.hpp>
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#include <boost/bimap.hpp>
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#include <boost/assign.hpp>
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#include <boost/range/adaptor/sliced.hpp>
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#include "cql3/statements/batch_statement.hh"
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#include "service/migration_manager.hh"
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#include "service/storage_service.hh"
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#include "db/consistency_level_type.hh"
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#include "db/write_type.hh"
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#include <seastar/core/future-util.hh>
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#include <seastar/core/reactor.hh>
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#include "utils/UUID.hh"
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#include <seastar/net/byteorder.hh>
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#include <seastar/core/metrics.hh>
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#include <seastar/net/byteorder.hh>
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#include <seastar/util/lazy.hh>
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#include <seastar/core/execution_stage.hh>
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#include "enum_set.hh"
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#include "service/query_state.hh"
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#include "service/client_state.hh"
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#include "exceptions/exceptions.hh"
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#include "auth/authenticator.hh"
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#include <cassert>
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#include <string>
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#include <snappy-c.h>
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#include <lz4.h>
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#include "response.hh"
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#include "request.hh"
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#include "types/user.hh"
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namespace cql_transport {
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static logging::logger clogger("cql_server");
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cql_server::connection::processing_result::processing_result(response_type r)
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: cql_response(make_foreign(std::move(r.first)))
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, keyspace(r.second.is_dirty() ? make_foreign(std::make_unique<sstring>(std::move(r.second.get_raw_keyspace()))) : nullptr)
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, user(r.second.user_is_dirty() ? make_foreign(r.second.user()) : nullptr)
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, auth_state(r.second.get_auth_state())
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{}
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struct cql_frame_error : std::exception {
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const char* what() const throw () override {
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return "bad cql binary frame";
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}
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};
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inline int16_t consistency_to_wire(db::consistency_level c)
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{
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switch (c) {
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case db::consistency_level::ANY: return 0x0000;
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case db::consistency_level::ONE: return 0x0001;
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case db::consistency_level::TWO: return 0x0002;
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case db::consistency_level::THREE: return 0x0003;
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case db::consistency_level::QUORUM: return 0x0004;
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case db::consistency_level::ALL: return 0x0005;
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case db::consistency_level::LOCAL_QUORUM: return 0x0006;
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case db::consistency_level::EACH_QUORUM: return 0x0007;
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case db::consistency_level::SERIAL: return 0x0008;
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case db::consistency_level::LOCAL_SERIAL: return 0x0009;
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case db::consistency_level::LOCAL_ONE: return 0x000A;
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default: throw std::runtime_error("Invalid consistency level");
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}
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}
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sstring to_string(const event::topology_change::change_type t) {
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using type = event::topology_change::change_type;
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switch (t) {
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case type::NEW_NODE: return "NEW_NODE";
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case type::REMOVED_NODE: return "REMOVED_NODE";
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case type::MOVED_NODE: return "MOVED_NODE";
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}
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throw std::invalid_argument("unknown change type");
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}
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sstring to_string(const event::status_change::status_type t) {
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using type = event::status_change::status_type;
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switch (t) {
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case type::UP: return "UP";
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case type::DOWN: return "DOWN";
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}
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throw std::invalid_argument("unknown change type");
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}
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sstring to_string(const event::schema_change::change_type t) {
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switch (t) {
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case event::schema_change::change_type::CREATED: return "CREATED";
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case event::schema_change::change_type::UPDATED: return "UPDATED";
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case event::schema_change::change_type::DROPPED: return "DROPPED";
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}
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throw std::invalid_argument("unknown change type");
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}
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sstring to_string(const event::schema_change::target_type t) {
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switch (t) {
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case event::schema_change::target_type::KEYSPACE: return "KEYSPACE";
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case event::schema_change::target_type::TABLE: return "TABLE";
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case event::schema_change::target_type::TYPE: return "TYPE";
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}
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throw std::invalid_argument("unknown target type");
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|
}
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event::event_type parse_event_type(const sstring& value)
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{
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if (value == "TOPOLOGY_CHANGE") {
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return event::event_type::TOPOLOGY_CHANGE;
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} else if (value == "STATUS_CHANGE") {
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return event::event_type::STATUS_CHANGE;
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} else if (value == "SCHEMA_CHANGE") {
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return event::event_type::SCHEMA_CHANGE;
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} else {
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throw exceptions::protocol_exception(format("Invalid value '{}' for Event.Type", value));
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}
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}
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cql_server::cql_server(distributed<service::storage_proxy>& proxy, distributed<cql3::query_processor>& qp, auth::service& auth_service,
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cql_server_config config)
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: _proxy(proxy)
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, _query_processor(qp)
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, _config(config)
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, _max_request_size(config.max_request_size)
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, _memory_available(config.get_service_memory_limiter_semaphore())
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, _notifier(std::make_unique<event_notifier>())
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, _auth_service(auth_service)
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{
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namespace sm = seastar::metrics;
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_metrics.add_group("transport", {
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sm::make_derive("cql-connections", _connects,
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sm::description("Counts a number of client connections.")),
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sm::make_gauge("current_connections", _connections,
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sm::description("Holds a current number of client connections.")),
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sm::make_derive("requests_served", _requests_served,
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sm::description("Counts a number of served requests.")),
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sm::make_gauge("requests_serving", _requests_serving,
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sm::description("Holds a number of requests that are being processed right now.")),
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sm::make_gauge("requests_blocked_memory_current", [this] { return _memory_available.waiters(); },
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sm::description(
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seastar::format("Holds the number of requests that are currently blocked due to reaching the memory quota limit ({}B). "
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"Non-zero value indicates that our bottleneck is memory and more specifically - the memory quota allocated for the \"CQL transport\" component.", _max_request_size))),
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sm::make_derive("requests_blocked_memory", _requests_blocked_memory,
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sm::description(
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seastar::format("Holds an incrementing counter with the requests that ever blocked due to reaching the memory quota limit ({}B). "
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"The first derivative of this value shows how often we block due to memory exhaustion in the \"CQL transport\" component.", _max_request_size))),
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sm::make_gauge("requests_memory_available", [this] { return _memory_available.current(); },
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sm::description(
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seastar::format("Holds the amount of available memory for admitting new requests (max is {}B)."
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"Zero value indicates that our bottleneck is memory and more specifically - the memory quota allocated for the \"CQL transport\" component.", _max_request_size))),
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});
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}
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future<> cql_server::stop() {
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_stopping = true;
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size_t nr = 0;
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size_t nr_total = _listeners.size();
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clogger.debug("cql_server: abort accept nr_total={}", nr_total);
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for (auto&& l : _listeners) {
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l.abort_accept();
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clogger.debug("cql_server: abort accept {} out of {} done", ++nr, nr_total);
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}
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auto nr_conn = make_lw_shared<size_t>(0);
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auto nr_conn_total = _connections_list.size();
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clogger.debug("cql_server: shutdown connection nr_total={}", nr_conn_total);
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return parallel_for_each(_connections_list.begin(), _connections_list.end(), [nr_conn, nr_conn_total] (auto&& c) {
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return c.shutdown().then([nr_conn, nr_conn_total] {
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clogger.debug("cql_server: shutdown connection {} out of {} done", ++(*nr_conn), nr_conn_total);
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});
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}).then([this] {
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return std::move(_stopped);
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});
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}
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future<>
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cql_server::listen(socket_address addr, std::shared_ptr<seastar::tls::credentials_builder> creds, bool keepalive) {
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listen_options lo;
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lo.reuse_address = true;
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server_socket ss;
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try {
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ss = creds
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? seastar::tls::listen(creds->build_server_credentials(), addr, lo)
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: engine().listen(addr, lo);
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} catch (...) {
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throw std::runtime_error(format("CQLServer error while listening on {} -> {}", addr, std::current_exception()));
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}
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_listeners.emplace_back(std::move(ss));
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_stopped = when_all(std::move(_stopped), do_accepts(_listeners.size() - 1, keepalive, addr)).discard_result();
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return make_ready_future<>();
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}
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future<>
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cql_server::do_accepts(int which, bool keepalive, socket_address server_addr) {
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return repeat([this, which, keepalive, server_addr] {
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++_connections_being_accepted;
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return _listeners[which].accept().then_wrapped([this, which, keepalive, server_addr] (future<accept_result> f_cs_sa) mutable {
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--_connections_being_accepted;
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if (_stopping) {
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f_cs_sa.ignore_ready_future();
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maybe_idle();
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return stop_iteration::yes;
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}
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auto cs_sa = f_cs_sa.get0();
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auto fd = std::move(cs_sa.connection);
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auto addr = std::move(cs_sa.remote_address);
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fd.set_nodelay(true);
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fd.set_keepalive(keepalive);
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auto conn = make_shared<connection>(*this, server_addr, std::move(fd), std::move(addr));
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++_connects;
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++_connections;
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conn->process().then_wrapped([this, conn] (future<> f) {
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--_connections;
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try {
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f.get();
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} catch (...) {
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clogger.debug("connection error: {}", std::current_exception());
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}
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});
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return stop_iteration::no;
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}).handle_exception([] (auto ep) {
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clogger.debug("accept failed: {}", ep);
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return stop_iteration::no;
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});
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});
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}
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unsigned
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cql_server::connection::frame_size() const {
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if (_version < 3) {
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return 8;
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} else {
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return 9;
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}
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}
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|
cql_binary_frame_v3
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cql_server::connection::parse_frame(temporary_buffer<char> buf) {
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if (buf.size() != frame_size()) {
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throw cql_frame_error();
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}
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cql_binary_frame_v3 v3;
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switch (_version) {
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case 1:
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case 2: {
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auto raw = reinterpret_cast<const cql_binary_frame_v1*>(buf.get());
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auto cooked = net::ntoh(*raw);
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v3.version = cooked.version;
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v3.flags = cooked.flags;
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v3.opcode = cooked.opcode;
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v3.stream = cooked.stream;
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v3.length = cooked.length;
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break;
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}
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case 3:
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case 4: {
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v3 = net::ntoh(*reinterpret_cast<const cql_binary_frame_v3*>(buf.get()));
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break;
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}
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default:
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throw exceptions::protocol_exception(format("Invalid or unsupported protocol version: {:d}", _version));
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}
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if (v3.version != _version) {
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throw exceptions::protocol_exception(format("Invalid message version. Got {:d} but previous messages on this connection had version {:d}", v3.version, _version));
|
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|
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}
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return v3;
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}
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|
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future<std::optional<cql_binary_frame_v3>>
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cql_server::connection::read_frame() {
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using ret_type = std::optional<cql_binary_frame_v3>;
|
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if (!_version) {
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// We don't know the frame size before reading the first frame,
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// so read just one byte, and then read the rest of the frame.
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return _read_buf.read_exactly(1).then([this] (temporary_buffer<char> buf) {
|
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if (buf.empty()) {
|
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return make_ready_future<ret_type>();
|
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}
|
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_version = buf[0];
|
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init_cql_serialization_format();
|
|
if (_version < 1 || _version > current_version) {
|
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auto client_version = _version;
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|
_version = current_version;
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throw exceptions::protocol_exception(format("Invalid or unsupported protocol version: {:d}", client_version));
|
|
}
|
|
return _read_buf.read_exactly(frame_size() - 1).then([this] (temporary_buffer<char> tail) {
|
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temporary_buffer<char> full(frame_size());
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full.get_write()[0] = _version;
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std::copy(tail.get(), tail.get() + tail.size(), full.get_write() + 1);
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auto frame = parse_frame(std::move(full));
|
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// This is the very first frame, so reject obviously incorrect frames, to
|
|
// avoid allocating large amounts of memory for the message body
|
|
if (frame.length > 100'000) {
|
|
// The STARTUP message body is a [string map] containing just a few options,
|
|
// so it should be smaller that 100kB. See #4366.
|
|
throw exceptions::protocol_exception(format("Initial message size too large ({:d}), rejecting as invalid", frame.length));
|
|
}
|
|
return make_ready_future<ret_type>(frame);
|
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});
|
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});
|
|
} else {
|
|
// Not the first frame, so we know the size.
|
|
return _read_buf.read_exactly(frame_size()).then([this] (temporary_buffer<char> buf) {
|
|
if (buf.empty()) {
|
|
return make_ready_future<ret_type>();
|
|
}
|
|
return make_ready_future<ret_type>(parse_frame(std::move(buf)));
|
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});
|
|
}
|
|
}
|
|
|
|
future<cql_server::connection::processing_result>
|
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cql_server::connection::process_request_one(fragmented_temporary_buffer::istream fbuf, uint8_t op, uint16_t stream, service::client_state client_state, tracing_request_type tracing_request, service_permit permit) {
|
|
using auth_state = service::client_state::auth_state;
|
|
|
|
auto cqlop = static_cast<cql_binary_opcode>(op);
|
|
tracing::trace_state_props_set trace_props;
|
|
|
|
trace_props.set_if<tracing::trace_state_props::log_slow_query>(tracing::tracing::get_local_tracing_instance().slow_query_tracing_enabled());
|
|
trace_props.set_if<tracing::trace_state_props::full_tracing>(tracing_request != tracing_request_type::not_requested);
|
|
|
|
if (trace_props) {
|
|
if (cqlop == cql_binary_opcode::QUERY ||
|
|
cqlop == cql_binary_opcode::PREPARE ||
|
|
cqlop == cql_binary_opcode::EXECUTE ||
|
|
cqlop == cql_binary_opcode::BATCH) {
|
|
trace_props.set_if<tracing::trace_state_props::write_on_close>(tracing_request == tracing_request_type::write_on_close);
|
|
client_state.create_tracing_session(tracing::trace_type::QUERY, trace_props);
|
|
}
|
|
}
|
|
|
|
tracing::set_request_size(client_state.get_trace_state(), fbuf.bytes_left());
|
|
|
|
auto linearization_buffer = std::make_unique<bytes_ostream>();
|
|
auto linearization_buffer_ptr = linearization_buffer.get();
|
|
return futurize_apply([this, cqlop, stream, &fbuf, client_state, linearization_buffer_ptr, permit = std::move(permit)] () mutable {
|
|
// When using authentication, we need to ensure we are doing proper state transitions,
|
|
// i.e. we cannot simply accept any query/exec ops unless auth is complete
|
|
switch (client_state.get_auth_state()) {
|
|
case auth_state::UNINITIALIZED:
|
|
if (cqlop != cql_binary_opcode::STARTUP && cqlop != cql_binary_opcode::OPTIONS) {
|
|
throw exceptions::protocol_exception(format("Unexpected message {:d}, expecting STARTUP or OPTIONS", int(cqlop)));
|
|
}
|
|
break;
|
|
case auth_state::AUTHENTICATION:
|
|
// Support both SASL auth from protocol v2 and the older style Credentials auth from v1
|
|
if (cqlop != cql_binary_opcode::AUTH_RESPONSE && cqlop != cql_binary_opcode::CREDENTIALS) {
|
|
throw exceptions::protocol_exception(format("Unexpected message {:d}, expecting {}", int(cqlop), _version == 1 ? "CREDENTIALS" : "SASL_RESPONSE"));
|
|
}
|
|
break;
|
|
case auth_state::READY: default:
|
|
if (cqlop == cql_binary_opcode::STARTUP) {
|
|
throw exceptions::protocol_exception("Unexpected message STARTUP, the connection is already initialized");
|
|
}
|
|
break;
|
|
}
|
|
|
|
const auto user = [&client_state]() -> std::optional<auth::authenticated_user> {
|
|
const auto user = client_state.user();
|
|
if (!user) {
|
|
return {};
|
|
}
|
|
|
|
return *user;
|
|
}();
|
|
|
|
tracing::set_username(client_state.get_trace_state(), user);
|
|
|
|
auto in = request_reader(std::move(fbuf), *linearization_buffer_ptr);
|
|
switch (cqlop) {
|
|
case cql_binary_opcode::STARTUP: return process_startup(stream, std::move(in), std::move(client_state));
|
|
case cql_binary_opcode::AUTH_RESPONSE: return process_auth_response(stream, std::move(in), std::move(client_state));
|
|
case cql_binary_opcode::OPTIONS: return process_options(stream, std::move(in), std::move(client_state));
|
|
case cql_binary_opcode::QUERY: return process_query(stream, std::move(in), std::move(client_state), std::move(permit));
|
|
case cql_binary_opcode::PREPARE: return process_prepare(stream, std::move(in), std::move(client_state));
|
|
case cql_binary_opcode::EXECUTE: return process_execute(stream, std::move(in), std::move(client_state), std::move(permit));
|
|
case cql_binary_opcode::BATCH: return process_batch(stream, std::move(in), std::move(client_state), std::move(permit));
|
|
case cql_binary_opcode::REGISTER: return process_register(stream, std::move(in), std::move(client_state));
|
|
default: throw exceptions::protocol_exception(format("Unknown opcode {:d}", int(cqlop)));
|
|
}
|
|
}).then_wrapped([this, cqlop, stream, client_state, linearization_buffer = std::move(linearization_buffer)] (future<response_type> f) -> processing_result {
|
|
auto stop_trace = defer([&] {
|
|
tracing::stop_foreground(client_state.get_trace_state());
|
|
});
|
|
--_server._requests_serving;
|
|
try {
|
|
response_type response = f.get0();
|
|
service::client_state& resp_client_state = response.second;
|
|
auto res_op = response.first->opcode();
|
|
|
|
// and modify state now that we've generated a response.
|
|
switch (client_state.get_auth_state()) {
|
|
case auth_state::UNINITIALIZED:
|
|
if (cqlop == cql_binary_opcode::STARTUP) {
|
|
if (res_op == cql_binary_opcode::AUTHENTICATE) {
|
|
resp_client_state.set_auth_state(auth_state::AUTHENTICATION);
|
|
} else if (res_op == cql_binary_opcode::READY) {
|
|
resp_client_state.set_auth_state(auth_state::READY);
|
|
}
|
|
}
|
|
break;
|
|
case auth_state::AUTHENTICATION:
|
|
// Support both SASL auth from protocol v2 and the older style Credentials auth from v1
|
|
assert(cqlop == cql_binary_opcode::AUTH_RESPONSE || cqlop == cql_binary_opcode::CREDENTIALS);
|
|
if (res_op == cql_binary_opcode::READY || res_op == cql_binary_opcode::AUTH_SUCCESS) {
|
|
resp_client_state.set_auth_state(auth_state::READY);
|
|
}
|
|
break;
|
|
default:
|
|
case auth_state::READY:
|
|
break;
|
|
}
|
|
tracing::set_response_size(client_state.get_trace_state(), response.first->size());
|
|
return processing_result(std::move(response));
|
|
} catch (const exceptions::unavailable_exception& ex) {
|
|
return processing_result(std::make_pair(make_unavailable_error(stream, ex.code(), ex.what(), ex.consistency, ex.required, ex.alive, client_state.get_trace_state()), client_state));
|
|
} catch (const exceptions::read_timeout_exception& ex) {
|
|
return processing_result(std::make_pair(make_read_timeout_error(stream, ex.code(), ex.what(), ex.consistency, ex.received, ex.block_for, ex.data_present, client_state.get_trace_state()), client_state));
|
|
} catch (const exceptions::read_failure_exception& ex) {
|
|
return processing_result(std::make_pair(make_read_failure_error(stream, ex.code(), ex.what(), ex.consistency, ex.received, ex.failures, ex.block_for, ex.data_present, client_state.get_trace_state()), client_state));
|
|
} catch (const exceptions::mutation_write_timeout_exception& ex) {
|
|
return processing_result(std::make_pair(make_mutation_write_timeout_error(stream, ex.code(), ex.what(), ex.consistency, ex.received, ex.block_for, ex.type, client_state.get_trace_state()), client_state));
|
|
} catch (const exceptions::mutation_write_failure_exception& ex) {
|
|
return processing_result(std::make_pair(make_mutation_write_failure_error(stream, ex.code(), ex.what(), ex.consistency, ex.received, ex.failures, ex.block_for, ex.type, client_state.get_trace_state()), client_state));
|
|
} catch (const exceptions::already_exists_exception& ex) {
|
|
return processing_result(std::make_pair(make_already_exists_error(stream, ex.code(), ex.what(), ex.ks_name, ex.cf_name, client_state.get_trace_state()), client_state));
|
|
} catch (const exceptions::prepared_query_not_found_exception& ex) {
|
|
return processing_result(std::make_pair(make_unprepared_error(stream, ex.code(), ex.what(), ex.id, client_state.get_trace_state()), client_state));
|
|
} catch (const exceptions::cassandra_exception& ex) {
|
|
return processing_result(std::make_pair(make_error(stream, ex.code(), ex.what(), client_state.get_trace_state()), client_state));
|
|
} catch (std::exception& ex) {
|
|
return processing_result(std::make_pair(make_error(stream, exceptions::exception_code::SERVER_ERROR, ex.what(), client_state.get_trace_state()), client_state));
|
|
} catch (...) {
|
|
return processing_result(std::make_pair(make_error(stream, exceptions::exception_code::SERVER_ERROR, "unknown error", client_state.get_trace_state()), client_state));
|
|
}
|
|
});
|
|
}
|
|
|
|
cql_server::connection::connection(cql_server& server, socket_address server_addr, connected_socket&& fd, socket_address addr)
|
|
: _server(server)
|
|
, _server_addr(server_addr)
|
|
, _fd(std::move(fd))
|
|
, _read_buf(_fd.input())
|
|
, _write_buf(_fd.output())
|
|
, _client_state(service::client_state::external_tag{}, server._auth_service, addr)
|
|
{
|
|
++_server._total_connections;
|
|
++_server._current_connections;
|
|
_server._connections_list.push_back(*this);
|
|
}
|
|
|
|
cql_server::connection::~connection() {
|
|
--_server._current_connections;
|
|
_server._connections_list.erase(_server._connections_list.iterator_to(*this));
|
|
_server.maybe_idle();
|
|
}
|
|
|
|
future<> cql_server::connection::process()
|
|
{
|
|
return do_until([this] {
|
|
return _read_buf.eof();
|
|
}, [this] {
|
|
return with_gate(_pending_requests_gate, [this] {
|
|
return process_request();
|
|
});
|
|
}).then_wrapped([this] (future<> f) {
|
|
try {
|
|
f.get();
|
|
} catch (const exceptions::cassandra_exception& ex) {
|
|
write_response(make_error(0, ex.code(), ex.what(), tracing::trace_state_ptr()));
|
|
} catch (std::exception& ex) {
|
|
write_response(make_error(0, exceptions::exception_code::SERVER_ERROR, ex.what(), tracing::trace_state_ptr()));
|
|
} catch (...) {
|
|
write_response(make_error(0, exceptions::exception_code::SERVER_ERROR, "unknown error", tracing::trace_state_ptr()));
|
|
}
|
|
}).finally([this] {
|
|
return _pending_requests_gate.close().then([this] {
|
|
_server._notifier->unregister_connection(this);
|
|
return _ready_to_respond.finally([this] {
|
|
return _write_buf.close();
|
|
});
|
|
});
|
|
});
|
|
}
|
|
|
|
future<> cql_server::connection::shutdown()
|
|
{
|
|
try {
|
|
_fd.shutdown_input();
|
|
_fd.shutdown_output();
|
|
} catch (...) {
|
|
}
|
|
return make_ready_future<>();
|
|
}
|
|
|
|
thread_local cql_server::connection::execution_stage_type
|
|
cql_server::connection::_process_request_stage{"transport", &connection::process_request_one};
|
|
|
|
void cql_server::connection::update_client_state(processing_result& response) {
|
|
if (response.keyspace) {
|
|
if (response.keyspace.get_owner_shard() != engine().cpu_id()) {
|
|
_client_state.set_raw_keyspace(*response.keyspace);
|
|
} else {
|
|
// Avoid extra copy if we are on the same shard
|
|
_client_state.set_raw_keyspace(std::move(*response.keyspace));
|
|
}
|
|
}
|
|
|
|
if (response.user) {
|
|
if (response.user.get_owner_shard() != engine().cpu_id()) {
|
|
if (!_client_state.user() || *_client_state.user() != *response.user) {
|
|
_client_state.set_login(make_shared<auth::authenticated_user>(*response.user));
|
|
}
|
|
} else if (!_client_state.user()) {
|
|
// If we are on the same shard there is no need to copy unless _client_state._user == nullptr
|
|
_client_state.set_login(response.user.release());
|
|
}
|
|
}
|
|
|
|
if (_client_state.get_auth_state() != response.auth_state) {
|
|
_client_state.set_auth_state(response.auth_state);
|
|
}
|
|
}
|
|
|
|
future<> cql_server::connection::process_request() {
|
|
return read_frame().then_wrapped([this] (future<std::optional<cql_binary_frame_v3>>&& v) {
|
|
auto maybe_frame = std::get<0>(v.get());
|
|
if (!maybe_frame) {
|
|
// eof
|
|
return make_ready_future<>();
|
|
}
|
|
|
|
auto& f = *maybe_frame;
|
|
tracing_request_type tracing_requested = tracing_request_type::not_requested;
|
|
if (f.flags & cql_frame_flags::tracing) {
|
|
// If tracing is requested for a specific CQL command - flush
|
|
// tracing info right after the command is over.
|
|
tracing_requested = tracing_request_type::write_on_close;
|
|
} else if (tracing::tracing::get_local_tracing_instance().trace_next_query()) {
|
|
tracing_requested = tracing_request_type::no_write_on_close;
|
|
}
|
|
|
|
auto op = f.opcode;
|
|
auto stream = f.stream;
|
|
auto mem_estimate = f.length * 2 + 8000; // Allow for extra copies and bookkeeping
|
|
|
|
if (mem_estimate > _server._max_request_size) {
|
|
throw exceptions::invalid_request_exception(format("request size too large (frame size {:d}; estimate {:d}; allowed {:d}",
|
|
f.length, mem_estimate, _server._max_request_size));
|
|
}
|
|
|
|
auto fut = get_units(_server._memory_available, mem_estimate);
|
|
if (_server._memory_available.waiters()) {
|
|
++_server._requests_blocked_memory;
|
|
}
|
|
|
|
return fut.then([this, length = f.length, flags = f.flags, op, stream, tracing_requested] (semaphore_units<> mem_permit) {
|
|
return this->read_and_decompress_frame(length, flags).then([this, op, stream, tracing_requested, mem_permit = make_service_permit(std::move(mem_permit))] (fragmented_temporary_buffer buf) mutable {
|
|
|
|
++_server._requests_served;
|
|
++_server._requests_serving;
|
|
|
|
_pending_requests_gate.enter();
|
|
auto leave = defer([this] { _pending_requests_gate.leave(); });
|
|
// Replacing the immediately-invoked lambda below with just its body costs 5-10 usec extra per invocation.
|
|
// Cause not understood.
|
|
auto istream = buf.get_istream();
|
|
(void)_process_request_stage(this, istream, op, stream, service::client_state(service::client_state::request_copy_tag{}, _client_state, _client_state.get_timestamp()), tracing_requested, mem_permit)
|
|
.then_wrapped([this, buf = std::move(buf), mem_permit, leave = std::move(leave)] (future<processing_result> response_f) mutable {
|
|
try {
|
|
auto response = response_f.get0();
|
|
update_client_state(response);
|
|
write_response(std::move(response.cql_response), std::move(mem_permit), _compression);
|
|
} catch (...) {
|
|
clogger.error("request processing failed: {}", std::current_exception());
|
|
}
|
|
});
|
|
|
|
return make_ready_future<>();
|
|
});
|
|
});
|
|
});
|
|
}
|
|
|
|
static inline bytes_view to_bytes_view(temporary_buffer<char>& b)
|
|
{
|
|
using byte = bytes_view::value_type;
|
|
return bytes_view(reinterpret_cast<const byte*>(b.get()), b.size());
|
|
}
|
|
|
|
namespace compression_buffers {
|
|
|
|
// Reusable buffers for compression and decompression. Cleared every
|
|
// clear_buffers_trigger uses.
|
|
static constexpr size_t clear_buffers_trigger = 100'000;
|
|
static thread_local size_t buffer_use_count = 0;
|
|
static thread_local utils::reusable_buffer input_buffer;
|
|
static thread_local utils::reusable_buffer output_buffer;
|
|
|
|
void on_compression_buffer_use() {
|
|
if (++buffer_use_count == clear_buffers_trigger) {
|
|
input_buffer.clear();
|
|
output_buffer.clear();
|
|
buffer_use_count = 0;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
future<fragmented_temporary_buffer> cql_server::connection::read_and_decompress_frame(size_t length, uint8_t flags)
|
|
{
|
|
using namespace compression_buffers;
|
|
if (flags & cql_frame_flags::compression) {
|
|
if (_compression == cql_compression::lz4) {
|
|
if (length < 4) {
|
|
throw std::runtime_error("Truncated frame");
|
|
}
|
|
return _buffer_reader.read_exactly(_read_buf, length).then([this] (fragmented_temporary_buffer buf) {
|
|
auto linearization_buffer = bytes_ostream();
|
|
int32_t uncomp_len = request_reader(buf.get_istream(), linearization_buffer).read_int();
|
|
if (uncomp_len < 0) {
|
|
throw std::runtime_error("CQL frame uncompressed length is negative: " + std::to_string(uncomp_len));
|
|
}
|
|
buf.remove_prefix(4);
|
|
auto in = input_buffer.get_linearized_view(fragmented_temporary_buffer::view(buf));
|
|
auto uncomp = output_buffer.make_fragmented_temporary_buffer(uncomp_len, fragmented_temporary_buffer::default_fragment_size, [&] (bytes_mutable_view out) {
|
|
auto ret = LZ4_decompress_safe(reinterpret_cast<const char*>(in.data()), reinterpret_cast<char*>(out.data()),
|
|
in.size(), out.size());
|
|
if (ret < 0) {
|
|
throw std::runtime_error("CQL frame LZ4 uncompression failure");
|
|
}
|
|
return out.size();
|
|
});
|
|
on_compression_buffer_use();
|
|
return uncomp;
|
|
});
|
|
} else if (_compression == cql_compression::snappy) {
|
|
return _buffer_reader.read_exactly(_read_buf, length).then([this] (fragmented_temporary_buffer buf) {
|
|
auto in = input_buffer.get_linearized_view(fragmented_temporary_buffer::view(buf));
|
|
size_t uncomp_len;
|
|
if (snappy_uncompressed_length(reinterpret_cast<const char*>(in.data()), in.size(), &uncomp_len) != SNAPPY_OK) {
|
|
throw std::runtime_error("CQL frame Snappy uncompressed size is unknown");
|
|
}
|
|
auto uncomp = output_buffer.make_fragmented_temporary_buffer(uncomp_len, fragmented_temporary_buffer::default_fragment_size, [&] (bytes_mutable_view out) {
|
|
size_t output_len = out.size();
|
|
if (snappy_uncompress(reinterpret_cast<const char*>(in.data()), in.size(), reinterpret_cast<char*>(out.data()), &output_len) != SNAPPY_OK) {
|
|
throw std::runtime_error("CQL frame Snappy uncompression failure");
|
|
}
|
|
return output_len;
|
|
});
|
|
on_compression_buffer_use();
|
|
return uncomp;
|
|
});
|
|
} else {
|
|
throw exceptions::protocol_exception(format("Unknown compression algorithm"));
|
|
}
|
|
}
|
|
return _buffer_reader.read_exactly(_read_buf, length);
|
|
}
|
|
|
|
future<response_type> cql_server::connection::process_startup(uint16_t stream, request_reader in, service::client_state client_state)
|
|
{
|
|
auto options = in.read_string_map();
|
|
auto compression_opt = options.find("COMPRESSION");
|
|
if (compression_opt != options.end()) {
|
|
auto compression = compression_opt->second;
|
|
std::transform(compression.begin(), compression.end(), compression.begin(), ::tolower);
|
|
if (compression == "lz4") {
|
|
_compression = cql_compression::lz4;
|
|
} else if (compression == "snappy") {
|
|
_compression = cql_compression::snappy;
|
|
} else {
|
|
throw exceptions::protocol_exception(format("Unknown compression algorithm: {}", compression));
|
|
}
|
|
}
|
|
auto& a = client_state.get_auth_service()->underlying_authenticator();
|
|
if (a.require_authentication()) {
|
|
return make_ready_future<response_type>(std::make_pair(make_autheticate(stream, a.qualified_java_name(), client_state.get_trace_state()), client_state));
|
|
}
|
|
return make_ready_future<response_type>(std::make_pair(make_ready(stream, client_state.get_trace_state()), client_state));
|
|
}
|
|
|
|
future<response_type> cql_server::connection::process_auth_response(uint16_t stream, request_reader in, service::client_state client_state)
|
|
{
|
|
auto sasl_challenge = client_state.get_auth_service()->underlying_authenticator().new_sasl_challenge();
|
|
auto buf = in.read_raw_bytes_view(in.bytes_left());
|
|
auto challenge = sasl_challenge->evaluate_response(buf);
|
|
if (sasl_challenge->is_complete()) {
|
|
return sasl_challenge->get_authenticated_user().then([this, sasl_challenge, stream, client_state = std::move(client_state), challenge = std::move(challenge)](auth::authenticated_user user) mutable {
|
|
client_state.set_login(::make_shared<auth::authenticated_user>(std::move(user)));
|
|
auto f = client_state.check_user_can_login();
|
|
return f.then([this, stream, client_state = std::move(client_state), challenge = std::move(challenge)]() mutable {
|
|
auto tr_state = client_state.get_trace_state();
|
|
return make_ready_future<response_type>(std::make_pair(make_auth_success(stream, std::move(challenge), tr_state), std::move(client_state)));
|
|
});
|
|
});
|
|
}
|
|
auto tr_state = client_state.get_trace_state();
|
|
return make_ready_future<response_type>(std::make_pair(make_auth_challenge(stream, std::move(challenge), tr_state), std::move(client_state)));
|
|
}
|
|
|
|
future<response_type> cql_server::connection::process_options(uint16_t stream, request_reader in, service::client_state client_state)
|
|
{
|
|
return make_ready_future<response_type>(std::make_pair(make_supported(stream, client_state.get_trace_state()), client_state));
|
|
}
|
|
|
|
void
|
|
cql_server::connection::init_cql_serialization_format() {
|
|
_cql_serialization_format = cql_serialization_format(_version);
|
|
}
|
|
|
|
future<response_type> cql_server::connection::process_query(uint16_t stream, request_reader in, service::client_state client_state, service_permit permit)
|
|
{
|
|
auto query = in.read_long_string_view();
|
|
auto q_state = std::make_unique<cql_query_state>(client_state, std::move(permit));
|
|
auto& query_state = q_state->query_state;
|
|
q_state->options = in.read_options(_version, _cql_serialization_format, this->timeout_config());
|
|
auto& options = *q_state->options;
|
|
auto skip_metadata = options.skip_metadata();
|
|
|
|
tracing::set_page_size(query_state.get_trace_state(), options.get_page_size());
|
|
tracing::set_consistency_level(query_state.get_trace_state(), options.get_consistency());
|
|
tracing::set_optional_serial_consistency_level(query_state.get_trace_state(), options.get_serial_consistency());
|
|
tracing::add_query(query_state.get_trace_state(), query);
|
|
tracing::set_user_timestamp(query_state.get_trace_state(), options.get_specific_options().timestamp);
|
|
|
|
tracing::begin(query_state.get_trace_state(), "Execute CQL3 query", query_state.get_client_state().get_client_address());
|
|
|
|
return _server._query_processor.local().process(query, query_state, options).then([this, stream, &query_state, skip_metadata] (auto msg) {
|
|
tracing::trace(query_state.get_trace_state(), "Done processing - preparing a result");
|
|
return this->make_result(stream, msg, query_state.get_trace_state(), skip_metadata);
|
|
}).then([&query_state, q_state = std::move(q_state), this] (std::unique_ptr<cql_server::response> response) {
|
|
/* Keep q_state alive. */
|
|
return make_ready_future<response_type>(std::make_pair(std::move(response), query_state.get_client_state()));
|
|
});
|
|
}
|
|
|
|
future<response_type> cql_server::connection::process_prepare(uint16_t stream, request_reader in, service::client_state client_state_)
|
|
{
|
|
auto query = sstring(in.read_long_string_view());
|
|
|
|
tracing::add_query(client_state_.get_trace_state(), query);
|
|
tracing::begin(client_state_.get_trace_state(), "Preparing CQL3 query", client_state_.get_client_address());
|
|
|
|
auto cpu_id = engine().cpu_id();
|
|
auto cpus = boost::irange(0u, smp::count);
|
|
auto client_state = std::make_unique<service::client_state>(client_state_);
|
|
const auto& cs = *client_state;
|
|
return parallel_for_each(cpus.begin(), cpus.end(), [this, query, cpu_id, &cs] (unsigned int c) mutable {
|
|
if (c != cpu_id) {
|
|
return smp::submit_to(c, [this, query, &cs] () mutable {
|
|
return _server._query_processor.local().prepare(std::move(query), cs, false).discard_result();
|
|
});
|
|
} else {
|
|
return make_ready_future<>();
|
|
}
|
|
}).then([this, query, stream, &cs] () mutable {
|
|
tracing::trace(cs.get_trace_state(), "Done preparing on remote shards");
|
|
return _server._query_processor.local().prepare(std::move(query), cs, false).then([this, stream, &cs] (auto msg) {
|
|
tracing::trace(cs.get_trace_state(), "Done preparing on a local shard - preparing a result. ID is [{}]", seastar::value_of([&msg] {
|
|
return messages::result_message::prepared::cql::get_id(msg);
|
|
}));
|
|
return this->make_result(stream, msg, cs.get_trace_state());
|
|
});
|
|
}).then([client_state = std::move(client_state)] (std::unique_ptr<cql_server::response> response) {
|
|
/* keep client_state alive */
|
|
return make_ready_future<response_type>(std::make_pair(std::move(response), *client_state));
|
|
});
|
|
}
|
|
|
|
future<response_type> cql_server::connection::process_execute(uint16_t stream, request_reader in, service::client_state client_state, service_permit permit)
|
|
{
|
|
cql3::prepared_cache_key_type cache_key(in.read_short_bytes());
|
|
auto& id = cql3::prepared_cache_key_type::cql_id(cache_key);
|
|
bool needs_authorization = false;
|
|
|
|
// First, try to lookup in the cache of already authorized statements. If the corresponding entry is not found there
|
|
// look for the prepared statement and then authorize it.
|
|
auto prepared = _server._query_processor.local().get_prepared(client_state.user().get(), cache_key);
|
|
if (!prepared) {
|
|
needs_authorization = true;
|
|
prepared = _server._query_processor.local().get_prepared(cache_key);
|
|
}
|
|
|
|
if (!prepared) {
|
|
throw exceptions::prepared_query_not_found_exception(id);
|
|
}
|
|
|
|
auto q_state = std::make_unique<cql_query_state>(client_state, std::move(permit));
|
|
auto& query_state = q_state->query_state;
|
|
if (_version == 1) {
|
|
std::vector<cql3::raw_value_view> values;
|
|
in.read_value_view_list(_version, values);
|
|
auto consistency = in.read_consistency();
|
|
q_state->options = std::make_unique<cql3::query_options>(consistency, timeout_config(), std::nullopt, values, false,
|
|
cql3::query_options::specific_options::DEFAULT, _cql_serialization_format);
|
|
} else {
|
|
q_state->options = in.read_options(_version, _cql_serialization_format, this->timeout_config());
|
|
}
|
|
auto& options = *q_state->options;
|
|
auto skip_metadata = options.skip_metadata();
|
|
|
|
tracing::set_page_size(client_state.get_trace_state(), options.get_page_size());
|
|
tracing::set_consistency_level(client_state.get_trace_state(), options.get_consistency());
|
|
tracing::set_optional_serial_consistency_level(client_state.get_trace_state(), options.get_serial_consistency());
|
|
tracing::add_query(client_state.get_trace_state(), prepared->raw_cql_statement);
|
|
tracing::add_prepared_statement(client_state.get_trace_state(), prepared);
|
|
|
|
tracing::begin(client_state.get_trace_state(), seastar::value_of([&id] { return seastar::format("Execute CQL3 prepared query [{}]", id); }),
|
|
client_state.get_client_address());
|
|
|
|
auto stmt = prepared->statement;
|
|
tracing::trace(query_state.get_trace_state(), "Checking bounds");
|
|
if (stmt->get_bound_terms() != options.get_values_count()) {
|
|
tracing::trace(query_state.get_trace_state(), "Invalid amount of bind variables: expected {:d} received {:d}", stmt->get_bound_terms(), options.get_values_count());
|
|
throw exceptions::invalid_request_exception("Invalid amount of bind variables");
|
|
}
|
|
|
|
options.prepare(prepared->bound_names);
|
|
|
|
tracing::trace(query_state.get_trace_state(), "Processing a statement");
|
|
return _server._query_processor.local().process_statement_prepared(std::move(prepared), std::move(cache_key), query_state, options, needs_authorization).then([this, stream, &query_state, skip_metadata] (auto msg) {
|
|
tracing::trace(query_state.get_trace_state(), "Done processing - preparing a result");
|
|
return this->make_result(stream, msg, query_state.get_trace_state(), skip_metadata);
|
|
}).then([&query_state, q_state = std::move(q_state), this] (std::unique_ptr<cql_server::response> response) {
|
|
/* Keep q_state alive. */
|
|
tracing::stop_foreground_prepared(query_state.get_trace_state(), q_state->options.get());
|
|
return make_ready_future<response_type>(std::make_pair(std::move(response), query_state.get_client_state()));
|
|
});
|
|
}
|
|
|
|
future<response_type>
|
|
cql_server::connection::process_batch(uint16_t stream, request_reader in, service::client_state client_state, service_permit permit)
|
|
{
|
|
if (_version == 1) {
|
|
throw exceptions::protocol_exception("BATCH messages are not support in version 1 of the protocol");
|
|
}
|
|
|
|
const auto type = in.read_byte();
|
|
const unsigned n = in.read_short();
|
|
|
|
std::vector<cql3::statements::batch_statement::single_statement> modifications;
|
|
std::vector<std::vector<cql3::raw_value_view>> values;
|
|
std::unordered_map<cql3::prepared_cache_key_type, cql3::authorized_prepared_statements_cache::value_type> pending_authorization_entries;
|
|
|
|
modifications.reserve(n);
|
|
values.reserve(n);
|
|
|
|
tracing::begin(client_state.get_trace_state(), "Execute batch of CQL3 queries", client_state.get_client_address());
|
|
|
|
for ([[gnu::unused]] auto i : boost::irange(0u, n)) {
|
|
const auto kind = in.read_byte();
|
|
|
|
std::unique_ptr<cql3::statements::prepared_statement> stmt_ptr;
|
|
cql3::statements::prepared_statement::checked_weak_ptr ps;
|
|
bool needs_authorization(kind == 0);
|
|
|
|
switch (kind) {
|
|
case 0: {
|
|
auto query = in.read_long_string_view();
|
|
stmt_ptr = _server._query_processor.local().get_statement(query, client_state);
|
|
ps = stmt_ptr->checked_weak_from_this();
|
|
tracing::add_query(client_state.get_trace_state(), query);
|
|
break;
|
|
}
|
|
case 1: {
|
|
cql3::prepared_cache_key_type cache_key(in.read_short_bytes());
|
|
auto& id = cql3::prepared_cache_key_type::cql_id(cache_key);
|
|
|
|
// First, try to lookup in the cache of already authorized statements. If the corresponding entry is not found there
|
|
// look for the prepared statement and then authorize it.
|
|
ps = _server._query_processor.local().get_prepared(client_state.user().get(), cache_key);
|
|
if (!ps) {
|
|
ps = _server._query_processor.local().get_prepared(cache_key);
|
|
if (!ps) {
|
|
throw exceptions::prepared_query_not_found_exception(id);
|
|
}
|
|
// authorize a particular prepared statement only once
|
|
needs_authorization = pending_authorization_entries.emplace(std::move(cache_key), ps->checked_weak_from_this()).second;
|
|
}
|
|
|
|
tracing::add_query(client_state.get_trace_state(), ps->raw_cql_statement);
|
|
break;
|
|
}
|
|
default:
|
|
throw exceptions::protocol_exception(
|
|
"Invalid query kind in BATCH messages. Must be 0 or 1 but got "
|
|
+ std::to_string(int(kind)));
|
|
}
|
|
|
|
if (dynamic_cast<cql3::statements::modification_statement*>(ps->statement.get()) == nullptr) {
|
|
throw exceptions::invalid_request_exception("Invalid statement in batch: only UPDATE, INSERT and DELETE statements are allowed.");
|
|
}
|
|
|
|
::shared_ptr<cql3::statements::modification_statement> modif_statement_ptr = static_pointer_cast<cql3::statements::modification_statement>(ps->statement);
|
|
tracing::add_table_name(client_state.get_trace_state(), modif_statement_ptr->keyspace(), modif_statement_ptr->column_family());
|
|
tracing::add_prepared_statement(client_state.get_trace_state(), ps);
|
|
|
|
modifications.emplace_back(std::move(modif_statement_ptr), needs_authorization);
|
|
|
|
std::vector<cql3::raw_value_view> tmp;
|
|
in.read_value_view_list(_version, tmp);
|
|
|
|
auto stmt = ps->statement;
|
|
if (stmt->get_bound_terms() != tmp.size()) {
|
|
throw exceptions::invalid_request_exception(format("There were {:d} markers(?) in CQL but {:d} bound variables",
|
|
stmt->get_bound_terms(), tmp.size()));
|
|
}
|
|
values.emplace_back(std::move(tmp));
|
|
}
|
|
|
|
auto q_state = std::make_unique<cql_query_state>(client_state, std::move(permit));
|
|
auto& query_state = q_state->query_state;
|
|
// #563. CQL v2 encodes query_options in v1 format for batch requests.
|
|
q_state->options = std::make_unique<cql3::query_options>(cql3::query_options::make_batch_options(std::move(*in.read_options(_version < 3 ? 1 : _version, _cql_serialization_format, this->timeout_config())), std::move(values)));
|
|
auto& options = *q_state->options;
|
|
|
|
tracing::set_consistency_level(client_state.get_trace_state(), options.get_consistency());
|
|
tracing::set_optional_serial_consistency_level(client_state.get_trace_state(), options.get_serial_consistency());
|
|
tracing::trace(client_state.get_trace_state(), "Creating a batch statement");
|
|
|
|
auto batch = ::make_shared<cql3::statements::batch_statement>(cql3::statements::batch_statement::type(type), std::move(modifications), cql3::attributes::none(), _server._query_processor.local().get_cql_stats());
|
|
return _server._query_processor.local().process_batch(batch, query_state, options, std::move(pending_authorization_entries)).then([this, stream, batch, &query_state] (auto msg) {
|
|
return this->make_result(stream, msg, query_state.get_trace_state());
|
|
}).then([&query_state, q_state = std::move(q_state), this] (std::unique_ptr<cql_server::response> response) {
|
|
/* Keep q_state alive. */
|
|
tracing::stop_foreground_prepared(query_state.get_trace_state(), q_state->options.get());
|
|
return make_ready_future<response_type>(std::make_pair(std::move(response), query_state.get_client_state()));
|
|
});
|
|
}
|
|
|
|
future<response_type>
|
|
cql_server::connection::process_register(uint16_t stream, request_reader in, service::client_state client_state)
|
|
{
|
|
std::vector<sstring> event_types;
|
|
in.read_string_list(event_types);
|
|
for (auto&& event_type : event_types) {
|
|
auto et = parse_event_type(event_type);
|
|
_server._notifier->register_event(et, this);
|
|
}
|
|
return make_ready_future<response_type>(std::make_pair(make_ready(stream, client_state.get_trace_state()), client_state));
|
|
}
|
|
|
|
std::unique_ptr<cql_server::response> cql_server::connection::make_unavailable_error(int16_t stream, exceptions::exception_code err, sstring msg, db::consistency_level cl, int32_t required, int32_t alive, const tracing::trace_state_ptr& tr_state)
|
|
{
|
|
auto response = std::make_unique<cql_server::response>(stream, cql_binary_opcode::ERROR, tr_state);
|
|
response->write_int(static_cast<int32_t>(err));
|
|
response->write_string(msg);
|
|
response->write_consistency(cl);
|
|
response->write_int(required);
|
|
response->write_int(alive);
|
|
return response;
|
|
}
|
|
|
|
std::unique_ptr<cql_server::response> cql_server::connection::make_read_timeout_error(int16_t stream, exceptions::exception_code err, sstring msg, db::consistency_level cl, int32_t received, int32_t blockfor, bool data_present, const tracing::trace_state_ptr& tr_state)
|
|
{
|
|
auto response = std::make_unique<cql_server::response>(stream, cql_binary_opcode::ERROR, tr_state);
|
|
response->write_int(static_cast<int32_t>(err));
|
|
response->write_string(msg);
|
|
response->write_consistency(cl);
|
|
response->write_int(received);
|
|
response->write_int(blockfor);
|
|
response->write_byte(data_present);
|
|
return response;
|
|
}
|
|
|
|
std::unique_ptr<cql_server::response> cql_server::connection::make_read_failure_error(int16_t stream, exceptions::exception_code err, sstring msg, db::consistency_level cl, int32_t received, int32_t numfailures, int32_t blockfor, bool data_present, const tracing::trace_state_ptr& tr_state)
|
|
{
|
|
if (_version < 4) {
|
|
return make_read_timeout_error(stream, err, std::move(msg), cl, received, blockfor, data_present, tr_state);
|
|
}
|
|
auto response = std::make_unique<cql_server::response>(stream, cql_binary_opcode::ERROR, tr_state);
|
|
response->write_int(static_cast<int32_t>(err));
|
|
response->write_string(msg);
|
|
response->write_consistency(cl);
|
|
response->write_int(received);
|
|
response->write_int(blockfor);
|
|
response->write_int(numfailures);
|
|
response->write_byte(data_present);
|
|
return response;
|
|
}
|
|
|
|
std::unique_ptr<cql_server::response> cql_server::connection::make_mutation_write_timeout_error(int16_t stream, exceptions::exception_code err, sstring msg, db::consistency_level cl, int32_t received, int32_t blockfor, db::write_type type, const tracing::trace_state_ptr& tr_state)
|
|
{
|
|
auto response = std::make_unique<cql_server::response>(stream, cql_binary_opcode::ERROR, tr_state);
|
|
response->write_int(static_cast<int32_t>(err));
|
|
response->write_string(msg);
|
|
response->write_consistency(cl);
|
|
response->write_int(received);
|
|
response->write_int(blockfor);
|
|
response->write_string(format("{}", type));
|
|
return response;
|
|
}
|
|
|
|
std::unique_ptr<cql_server::response> cql_server::connection::make_mutation_write_failure_error(int16_t stream, exceptions::exception_code err, sstring msg, db::consistency_level cl, int32_t received, int32_t numfailures, int32_t blockfor, db::write_type type, const tracing::trace_state_ptr& tr_state)
|
|
{
|
|
if (_version < 4) {
|
|
return make_mutation_write_timeout_error(stream, err, std::move(msg), cl, received, blockfor, type, tr_state);
|
|
}
|
|
auto response = std::make_unique<cql_server::response>(stream, cql_binary_opcode::ERROR, tr_state);
|
|
response->write_int(static_cast<int32_t>(err));
|
|
response->write_string(msg);
|
|
response->write_consistency(cl);
|
|
response->write_int(received);
|
|
response->write_int(blockfor);
|
|
response->write_int(numfailures);
|
|
response->write_string(format("{}", type));
|
|
return response;
|
|
}
|
|
|
|
std::unique_ptr<cql_server::response> cql_server::connection::make_already_exists_error(int16_t stream, exceptions::exception_code err, sstring msg, sstring ks_name, sstring cf_name, const tracing::trace_state_ptr& tr_state)
|
|
{
|
|
auto response = std::make_unique<cql_server::response>(stream, cql_binary_opcode::ERROR, tr_state);
|
|
response->write_int(static_cast<int32_t>(err));
|
|
response->write_string(msg);
|
|
response->write_string(ks_name);
|
|
response->write_string(cf_name);
|
|
return response;
|
|
}
|
|
|
|
std::unique_ptr<cql_server::response> cql_server::connection::make_unprepared_error(int16_t stream, exceptions::exception_code err, sstring msg, bytes id, const tracing::trace_state_ptr& tr_state)
|
|
{
|
|
auto response = std::make_unique<cql_server::response>(stream, cql_binary_opcode::ERROR, tr_state);
|
|
response->write_int(static_cast<int32_t>(err));
|
|
response->write_string(msg);
|
|
response->write_short_bytes(id);
|
|
return response;
|
|
}
|
|
|
|
std::unique_ptr<cql_server::response> cql_server::connection::make_error(int16_t stream, exceptions::exception_code err, sstring msg, const tracing::trace_state_ptr& tr_state)
|
|
{
|
|
auto response = std::make_unique<cql_server::response>(stream, cql_binary_opcode::ERROR, tr_state);
|
|
response->write_int(static_cast<int32_t>(err));
|
|
response->write_string(msg);
|
|
return response;
|
|
}
|
|
|
|
std::unique_ptr<cql_server::response> cql_server::connection::make_ready(int16_t stream, const tracing::trace_state_ptr& tr_state)
|
|
{
|
|
return std::make_unique<cql_server::response>(stream, cql_binary_opcode::READY, tr_state);
|
|
}
|
|
|
|
std::unique_ptr<cql_server::response> cql_server::connection::make_autheticate(int16_t stream, const sstring& clz, const tracing::trace_state_ptr& tr_state)
|
|
{
|
|
auto response = std::make_unique<cql_server::response>(stream, cql_binary_opcode::AUTHENTICATE, tr_state);
|
|
response->write_string(clz);
|
|
return response;
|
|
}
|
|
|
|
std::unique_ptr<cql_server::response> cql_server::connection::make_auth_success(int16_t stream, bytes b, const tracing::trace_state_ptr& tr_state) {
|
|
auto response = std::make_unique<cql_server::response>(stream, cql_binary_opcode::AUTH_SUCCESS, tr_state);
|
|
response->write_bytes(std::move(b));
|
|
return response;
|
|
}
|
|
|
|
std::unique_ptr<cql_server::response> cql_server::connection::make_auth_challenge(int16_t stream, bytes b, const tracing::trace_state_ptr& tr_state) {
|
|
auto response = std::make_unique<cql_server::response>(stream, cql_binary_opcode::AUTH_CHALLENGE, tr_state);
|
|
response->write_bytes(std::move(b));
|
|
return response;
|
|
}
|
|
|
|
std::unique_ptr<cql_server::response> cql_server::connection::make_supported(int16_t stream, const tracing::trace_state_ptr& tr_state)
|
|
{
|
|
std::multimap<sstring, sstring> opts;
|
|
opts.insert({"CQL_VERSION", cql3::query_processor::CQL_VERSION});
|
|
opts.insert({"COMPRESSION", "lz4"});
|
|
opts.insert({"COMPRESSION", "snappy"});
|
|
if (_server._config.allow_shard_aware_drivers) {
|
|
auto& part = dht::global_partitioner();
|
|
opts.insert({"SCYLLA_SHARD", format("{:d}", engine().cpu_id())});
|
|
opts.insert({"SCYLLA_NR_SHARDS", format("{:d}", smp::count)});
|
|
opts.insert({"SCYLLA_SHARDING_ALGORITHM", part.cpu_sharding_algorithm_name()});
|
|
opts.insert({"SCYLLA_SHARDING_IGNORE_MSB", format("{:d}", part.sharding_ignore_msb())});
|
|
opts.insert({"SCYLLA_PARTITIONER", part.name()});
|
|
}
|
|
auto response = std::make_unique<cql_server::response>(stream, cql_binary_opcode::SUPPORTED, tr_state);
|
|
response->write_string_multimap(opts);
|
|
return response;
|
|
}
|
|
|
|
class cql_server::fmt_visitor : public messages::result_message::visitor_base {
|
|
private:
|
|
uint8_t _version;
|
|
cql_server::response& _response;
|
|
bool _skip_metadata;
|
|
public:
|
|
fmt_visitor(uint8_t version, cql_server::response& response, bool skip_metadata)
|
|
: _version{version}
|
|
, _response{response}
|
|
, _skip_metadata{skip_metadata}
|
|
{ }
|
|
|
|
virtual void visit(const messages::result_message::void_message&) override {
|
|
_response.write_int(0x0001);
|
|
}
|
|
|
|
virtual void visit(const messages::result_message::set_keyspace& m) override {
|
|
_response.write_int(0x0003);
|
|
_response.write_string(m.get_keyspace());
|
|
}
|
|
|
|
virtual void visit(const messages::result_message::prepared::cql& m) override {
|
|
_response.write_int(0x0004);
|
|
_response.write_short_bytes(m.get_id());
|
|
_response.write(*m.metadata(), _version);
|
|
if (_version > 1) {
|
|
_response.write(*m.result_metadata());
|
|
}
|
|
}
|
|
|
|
virtual void visit(const messages::result_message::schema_change& m) override {
|
|
auto change = m.get_change();
|
|
switch (change->type) {
|
|
case event::event_type::SCHEMA_CHANGE: {
|
|
auto sc = static_pointer_cast<event::schema_change>(change);
|
|
_response.write_int(0x0005);
|
|
_response.serialize(*sc, _version);
|
|
break;
|
|
}
|
|
default:
|
|
assert(0);
|
|
}
|
|
}
|
|
|
|
virtual void visit(const messages::result_message::rows& m) override {
|
|
_response.write_int(0x0002);
|
|
auto& rs = m.rs();
|
|
_response.write(rs.get_metadata(), _skip_metadata);
|
|
auto row_count_plhldr = _response.write_int_placeholder();
|
|
|
|
class visitor {
|
|
cql_server::response& _response;
|
|
int32_t _row_count = 0;
|
|
public:
|
|
visitor(cql_server::response& r) : _response(r) { }
|
|
|
|
void start_row() {
|
|
_row_count++;
|
|
}
|
|
void accept_value(std::optional<query::result_bytes_view> cell) {
|
|
_response.write_value(cell);
|
|
}
|
|
void end_row() { }
|
|
|
|
int32_t row_count() const { return _row_count; }
|
|
};
|
|
|
|
auto v = visitor(_response);
|
|
rs.visit(v);
|
|
row_count_plhldr.write(v.row_count());
|
|
}
|
|
};
|
|
|
|
std::unique_ptr<cql_server::response>
|
|
cql_server::connection::make_result(int16_t stream, shared_ptr<messages::result_message> msg, const tracing::trace_state_ptr& tr_state, bool skip_metadata)
|
|
{
|
|
auto response = std::make_unique<cql_server::response>(stream, cql_binary_opcode::RESULT, tr_state);
|
|
if (__builtin_expect(!msg->warnings().empty() && _version > 3, false)) {
|
|
response->set_frame_flag(cql_frame_flags::warning);
|
|
response->write_string_list(msg->warnings());
|
|
}
|
|
fmt_visitor fmt{_version, *response, skip_metadata};
|
|
msg->accept(fmt);
|
|
return response;
|
|
}
|
|
|
|
std::unique_ptr<cql_server::response>
|
|
cql_server::connection::make_topology_change_event(const event::topology_change& event)
|
|
{
|
|
auto response = std::make_unique<cql_server::response>(-1, cql_binary_opcode::EVENT, tracing::trace_state_ptr());
|
|
response->write_string("TOPOLOGY_CHANGE");
|
|
response->write_string(to_string(event.change));
|
|
response->write_inet(event.node);
|
|
return response;
|
|
}
|
|
|
|
std::unique_ptr<cql_server::response>
|
|
cql_server::connection::make_status_change_event(const event::status_change& event)
|
|
{
|
|
auto response = std::make_unique<cql_server::response>(-1, cql_binary_opcode::EVENT, tracing::trace_state_ptr());
|
|
response->write_string("STATUS_CHANGE");
|
|
response->write_string(to_string(event.status));
|
|
response->write_inet(event.node);
|
|
return response;
|
|
}
|
|
|
|
std::unique_ptr<cql_server::response>
|
|
cql_server::connection::make_schema_change_event(const event::schema_change& event)
|
|
{
|
|
auto response = std::make_unique<cql_server::response>(-1, cql_binary_opcode::EVENT, tracing::trace_state_ptr());
|
|
response->write_string("SCHEMA_CHANGE");
|
|
response->serialize(event, _version);
|
|
return response;
|
|
}
|
|
|
|
void cql_server::connection::write_response(foreign_ptr<std::unique_ptr<cql_server::response>>&& response, service_permit permit, cql_compression compression)
|
|
{
|
|
_ready_to_respond = _ready_to_respond.then([this, compression, response = std::move(response), permit = std::move(permit)] () mutable {
|
|
auto message = response->make_message(_version, compression);
|
|
message.on_delete([response = std::move(response)] { });
|
|
return _write_buf.write(std::move(message)).then([this] {
|
|
return _write_buf.flush();
|
|
});
|
|
});
|
|
}
|
|
|
|
scattered_message<char> cql_server::response::make_message(uint8_t version, cql_compression compression) {
|
|
if (compression != cql_compression::none) {
|
|
compress(compression);
|
|
}
|
|
scattered_message<char> msg;
|
|
auto frame = make_frame(version, _body.size());
|
|
msg.append(std::move(frame));
|
|
for (auto&& fragment : _body.fragments()) {
|
|
msg.append_static(reinterpret_cast<const char*>(fragment.data()), fragment.size());
|
|
}
|
|
return msg;
|
|
}
|
|
|
|
void cql_server::response::compress(cql_compression compression)
|
|
{
|
|
switch (compression) {
|
|
case cql_compression::lz4:
|
|
compress_lz4();
|
|
break;
|
|
case cql_compression::snappy:
|
|
compress_snappy();
|
|
break;
|
|
default:
|
|
throw std::invalid_argument("Invalid CQL compression algorithm");
|
|
}
|
|
set_frame_flag(cql_frame_flags::compression);
|
|
}
|
|
|
|
void cql_server::response::compress_lz4()
|
|
{
|
|
using namespace compression_buffers;
|
|
auto view = input_buffer.get_linearized_view(_body);
|
|
const char* input = reinterpret_cast<const char*>(view.data());
|
|
size_t input_len = view.size();
|
|
|
|
size_t output_len = LZ4_COMPRESSBOUND(input_len) + 4;
|
|
_body = output_buffer.make_buffer(output_len, [&] (bytes_mutable_view output_view) {
|
|
char* output = reinterpret_cast<char*>(output_view.data());
|
|
output[0] = (input_len >> 24) & 0xFF;
|
|
output[1] = (input_len >> 16) & 0xFF;
|
|
output[2] = (input_len >> 8) & 0xFF;
|
|
output[3] = input_len & 0xFF;
|
|
#ifdef HAVE_LZ4_COMPRESS_DEFAULT
|
|
auto ret = LZ4_compress_default(input, output + 4, input_len, LZ4_compressBound(input_len));
|
|
#else
|
|
auto ret = LZ4_compress(input, output + 4, input_len);
|
|
#endif
|
|
if (ret == 0) {
|
|
throw std::runtime_error("CQL frame LZ4 compression failure");
|
|
}
|
|
return ret + 4;
|
|
});
|
|
on_compression_buffer_use();
|
|
}
|
|
|
|
void cql_server::response::compress_snappy()
|
|
{
|
|
using namespace compression_buffers;
|
|
auto view = input_buffer.get_linearized_view(_body);
|
|
const char* input = reinterpret_cast<const char*>(view.data());
|
|
size_t input_len = view.size();
|
|
|
|
size_t output_len = snappy_max_compressed_length(input_len);
|
|
_body = output_buffer.make_buffer(output_len, [&] (bytes_mutable_view output_view) {
|
|
char* output = reinterpret_cast<char*>(output_view.data());
|
|
if (snappy_compress(input, input_len, output, &output_len) != SNAPPY_OK) {
|
|
throw std::runtime_error("CQL frame Snappy compression failure");
|
|
}
|
|
return output_len;
|
|
});
|
|
on_compression_buffer_use();
|
|
}
|
|
|
|
void cql_server::response::serialize(const event::schema_change& event, uint8_t version)
|
|
{
|
|
if (version >= 3) {
|
|
write_string(to_string(event.change));
|
|
write_string(to_string(event.target));
|
|
write_string(event.keyspace);
|
|
if (event.target != event::schema_change::target_type::KEYSPACE) {
|
|
write_string(*(event.table_or_type_or_function));
|
|
}
|
|
} else {
|
|
if (event.target == event::schema_change::target_type::TYPE) {
|
|
// The v1/v2 protocol is unable to represent type changes. Tell the
|
|
// client that the keyspace was updated instead.
|
|
write_string(to_string(event::schema_change::change_type::UPDATED));
|
|
write_string(event.keyspace);
|
|
write_string("");
|
|
} else {
|
|
write_string(to_string(event.change));
|
|
write_string(event.keyspace);
|
|
if (event.target != event::schema_change::target_type::KEYSPACE) {
|
|
write_string(*(event.table_or_type_or_function));
|
|
} else {
|
|
write_string("");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void cql_server::response::write_byte(uint8_t b)
|
|
{
|
|
auto s = reinterpret_cast<const int8_t*>(&b);
|
|
_body.write(bytes_view(s, sizeof(b)));
|
|
}
|
|
|
|
void cql_server::response::write_int(int32_t n)
|
|
{
|
|
auto u = htonl(n);
|
|
auto *s = reinterpret_cast<const int8_t*>(&u);
|
|
_body.write(bytes_view(s, sizeof(u)));
|
|
}
|
|
|
|
cql_server::response::placeholder<int32_t> cql_server::response::write_int_placeholder() {
|
|
return placeholder<int32_t>(_body.write_place_holder(sizeof(int32_t)));
|
|
}
|
|
|
|
void cql_server::response::write_long(int64_t n)
|
|
{
|
|
auto u = htonq(n);
|
|
auto *s = reinterpret_cast<const int8_t*>(&u);
|
|
_body.write(bytes_view(s, sizeof(u)));
|
|
}
|
|
|
|
void cql_server::response::write_short(uint16_t n)
|
|
{
|
|
auto u = htons(n);
|
|
auto *s = reinterpret_cast<const int8_t*>(&u);
|
|
_body.write(bytes_view(s, sizeof(u)));
|
|
}
|
|
|
|
template<typename T>
|
|
inline
|
|
T cast_if_fits(size_t v) {
|
|
size_t max = std::numeric_limits<T>::max();
|
|
if (v > max) {
|
|
throw std::runtime_error(format("Value too large, {:d} > {:d}", v, max));
|
|
}
|
|
return static_cast<T>(v);
|
|
}
|
|
|
|
void cql_server::response::write_string(const sstring& s)
|
|
{
|
|
write_short(cast_if_fits<uint16_t>(s.size()));
|
|
_body.write(bytes_view(reinterpret_cast<const int8_t*>(s.data()), s.size()));
|
|
}
|
|
|
|
void cql_server::response::write_bytes_as_string(bytes_view s)
|
|
{
|
|
write_short(cast_if_fits<uint16_t>(s.size()));
|
|
_body.write(s);
|
|
}
|
|
|
|
void cql_server::response::write_long_string(const sstring& s)
|
|
{
|
|
write_int(cast_if_fits<int32_t>(s.size()));
|
|
_body.write(bytes_view(reinterpret_cast<const int8_t*>(s.data()), s.size()));
|
|
}
|
|
|
|
void cql_server::response::write_string_list(std::vector<sstring> string_list)
|
|
{
|
|
write_short(cast_if_fits<uint16_t>(string_list.size()));
|
|
for (auto&& s : string_list) {
|
|
write_string(s);
|
|
}
|
|
}
|
|
|
|
void cql_server::response::write_bytes(bytes b)
|
|
{
|
|
write_int(cast_if_fits<int32_t>(b.size()));
|
|
_body.write(b);
|
|
}
|
|
|
|
void cql_server::response::write_short_bytes(bytes b)
|
|
{
|
|
write_short(cast_if_fits<uint16_t>(b.size()));
|
|
_body.write(b);
|
|
}
|
|
|
|
void cql_server::response::write_inet(socket_address inet)
|
|
{
|
|
auto addr = inet.addr();
|
|
write_byte(uint8_t(addr.size()));
|
|
auto * p = static_cast<const int8_t*>(addr.data());
|
|
_body.write(bytes_view(p, addr.size()));
|
|
write_int(inet.port());
|
|
}
|
|
|
|
void cql_server::response::write_consistency(db::consistency_level c)
|
|
{
|
|
write_short(consistency_to_wire(c));
|
|
}
|
|
|
|
void cql_server::response::write_string_map(std::map<sstring, sstring> string_map)
|
|
{
|
|
write_short(cast_if_fits<uint16_t>(string_map.size()));
|
|
for (auto&& s : string_map) {
|
|
write_string(s.first);
|
|
write_string(s.second);
|
|
}
|
|
}
|
|
|
|
void cql_server::response::write_string_multimap(std::multimap<sstring, sstring> string_map)
|
|
{
|
|
std::vector<sstring> keys;
|
|
for (auto it = string_map.begin(), end = string_map.end(); it != end; it = string_map.upper_bound(it->first)) {
|
|
keys.push_back(it->first);
|
|
}
|
|
write_short(cast_if_fits<uint16_t>(keys.size()));
|
|
for (auto&& key : keys) {
|
|
std::vector<sstring> values;
|
|
auto range = string_map.equal_range(key);
|
|
for (auto it = range.first; it != range.second; ++it) {
|
|
values.push_back(it->second);
|
|
}
|
|
write_string(key);
|
|
write_string_list(values);
|
|
}
|
|
}
|
|
|
|
void cql_server::response::write_value(bytes_opt value)
|
|
{
|
|
if (!value) {
|
|
write_int(-1);
|
|
return;
|
|
}
|
|
|
|
write_int(value->size());
|
|
_body.write(*value);
|
|
}
|
|
|
|
void cql_server::response::write_value(std::optional<query::result_bytes_view> value)
|
|
{
|
|
if (!value) {
|
|
write_int(-1);
|
|
return;
|
|
}
|
|
|
|
write_int(value->size_bytes());
|
|
using boost::range::for_each;
|
|
for_each(*value, [&] (bytes_view fragment) {
|
|
_body.write(fragment);
|
|
});
|
|
}
|
|
|
|
class type_codec {
|
|
private:
|
|
enum class type_id : int16_t {
|
|
CUSTOM = 0x0000,
|
|
ASCII = 0x0001,
|
|
BIGINT = 0x0002,
|
|
BLOB = 0x0003,
|
|
BOOLEAN = 0x0004,
|
|
COUNTER = 0x0005,
|
|
DECIMAL = 0x0006,
|
|
DOUBLE = 0x0007,
|
|
FLOAT = 0x0008,
|
|
INT = 0x0009,
|
|
TIMESTAMP = 0x000B,
|
|
UUID = 0x000C,
|
|
VARCHAR = 0x000D,
|
|
VARINT = 0x000E,
|
|
TIMEUUID = 0x000F,
|
|
INET = 0x0010,
|
|
DATE = 0x0011,
|
|
TIME = 0x0012,
|
|
SMALLINT = 0x0013,
|
|
TINYINT = 0x0014,
|
|
DURATION = 0x0015,
|
|
LIST = 0x0020,
|
|
MAP = 0x0021,
|
|
SET = 0x0022,
|
|
UDT = 0x0030,
|
|
TUPLE = 0x0031,
|
|
};
|
|
|
|
using type_id_to_type_type = boost::bimap<
|
|
boost::bimaps::unordered_set_of<type_id>,
|
|
boost::bimaps::unordered_set_of<data_type>>;
|
|
|
|
static thread_local const type_id_to_type_type type_id_to_type;
|
|
public:
|
|
static void encode(cql_server::response& r, data_type type) {
|
|
type = type->underlying_type();
|
|
|
|
// For compatibility sake, we still return DateType as the timestamp type in resultSet metadata (#5723)
|
|
if (type == date_type) {
|
|
type = timestamp_type;
|
|
}
|
|
|
|
auto i = type_id_to_type.right.find(type);
|
|
if (i != type_id_to_type.right.end()) {
|
|
r.write_short(static_cast<std::underlying_type<type_id>::type>(i->second));
|
|
return;
|
|
}
|
|
|
|
if (type->is_reversed()) {
|
|
fail(unimplemented::cause::REVERSED);
|
|
}
|
|
if (type->is_user_type()) {
|
|
r.write_short(uint16_t(type_id::UDT));
|
|
auto udt = static_pointer_cast<const user_type_impl>(type);
|
|
r.write_string(udt->_keyspace);
|
|
r.write_bytes_as_string(udt->_name);
|
|
r.write_short(udt->size());
|
|
for (auto&& i : boost::irange<size_t>(0, udt->size())) {
|
|
r.write_bytes_as_string(udt->field_name(i));
|
|
encode(r, udt->field_type(i));
|
|
}
|
|
return;
|
|
}
|
|
if (type->is_tuple()) {
|
|
r.write_short(uint16_t(type_id::TUPLE));
|
|
auto ttype = static_pointer_cast<const tuple_type_impl>(type);
|
|
r.write_short(ttype->size());
|
|
for (auto&& t : ttype->all_types()) {
|
|
encode(r, t);
|
|
}
|
|
return;
|
|
}
|
|
if (type->is_collection()) {
|
|
auto&& ctype = static_cast<const collection_type_impl*>(type.get());
|
|
if (ctype->get_kind() == abstract_type::kind::map) {
|
|
r.write_short(uint16_t(type_id::MAP));
|
|
auto&& mtype = static_cast<const map_type_impl*>(ctype);
|
|
encode(r, mtype->get_keys_type());
|
|
encode(r, mtype->get_values_type());
|
|
} else if (ctype->get_kind() == abstract_type::kind::set) {
|
|
r.write_short(uint16_t(type_id::SET));
|
|
auto&& stype = static_cast<const set_type_impl*>(ctype);
|
|
encode(r, stype->get_elements_type());
|
|
} else if (ctype->get_kind() == abstract_type::kind::list) {
|
|
r.write_short(uint16_t(type_id::LIST));
|
|
auto&& ltype = static_cast<const list_type_impl*>(ctype);
|
|
encode(r, ltype->get_elements_type());
|
|
} else {
|
|
abort();
|
|
}
|
|
return;
|
|
}
|
|
abort();
|
|
}
|
|
};
|
|
|
|
thread_local const type_codec::type_id_to_type_type type_codec::type_id_to_type = boost::assign::list_of<type_id_to_type_type::relation>
|
|
(type_id::ASCII , ascii_type)
|
|
(type_id::BIGINT , long_type)
|
|
(type_id::BLOB , bytes_type)
|
|
(type_id::BOOLEAN , boolean_type)
|
|
(type_id::COUNTER , counter_type)
|
|
(type_id::DECIMAL , decimal_type)
|
|
(type_id::DOUBLE , double_type)
|
|
(type_id::FLOAT , float_type)
|
|
(type_id::INT , int32_type)
|
|
(type_id::TINYINT , byte_type)
|
|
(type_id::DURATION , duration_type)
|
|
(type_id::SMALLINT , short_type)
|
|
(type_id::TIMESTAMP , timestamp_type)
|
|
(type_id::UUID , uuid_type)
|
|
(type_id::VARCHAR , utf8_type)
|
|
(type_id::VARINT , varint_type)
|
|
(type_id::TIMEUUID , timeuuid_type)
|
|
(type_id::DATE , simple_date_type)
|
|
(type_id::TIME , time_type)
|
|
(type_id::INET , inet_addr_type);
|
|
|
|
void cql_server::response::write(const cql3::metadata& m, bool no_metadata) {
|
|
auto flags = m.flags();
|
|
bool global_tables_spec = m.flags().contains<cql3::metadata::flag::GLOBAL_TABLES_SPEC>();
|
|
bool has_more_pages = m.flags().contains<cql3::metadata::flag::HAS_MORE_PAGES>();
|
|
|
|
if (no_metadata) {
|
|
flags.set<cql3::metadata::flag::NO_METADATA>();
|
|
}
|
|
|
|
write_int(flags.mask());
|
|
write_int(m.column_count());
|
|
|
|
if (has_more_pages) {
|
|
write_value(m.paging_state()->serialize());
|
|
}
|
|
|
|
if (no_metadata) {
|
|
return;
|
|
}
|
|
|
|
auto names_i = m.get_names().begin();
|
|
|
|
if (global_tables_spec) {
|
|
auto first_spec = *names_i;
|
|
write_string(first_spec->ks_name);
|
|
write_string(first_spec->cf_name);
|
|
}
|
|
|
|
for (uint32_t i = 0; i < m.column_count(); ++i, ++names_i) {
|
|
::shared_ptr<cql3::column_specification> name = *names_i;
|
|
if (!global_tables_spec) {
|
|
write_string(name->ks_name);
|
|
write_string(name->cf_name);
|
|
}
|
|
write_string(name->name->text());
|
|
type_codec::encode(*this, name->type);
|
|
};
|
|
}
|
|
|
|
void cql_server::response::write(const cql3::prepared_metadata& m, uint8_t version)
|
|
{
|
|
bool global_tables_spec = m.flags().contains<cql3::prepared_metadata::flag::GLOBAL_TABLES_SPEC>();
|
|
|
|
write_int(m.flags().mask());
|
|
write_int(m.names().size());
|
|
|
|
if (version >= 4) {
|
|
if (!global_tables_spec) {
|
|
write_int(0);
|
|
} else {
|
|
write_int(m.partition_key_bind_indices().size());
|
|
for (uint16_t bind_index : m.partition_key_bind_indices()) {
|
|
write_short(bind_index);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (global_tables_spec) {
|
|
write_string(m.names()[0]->ks_name);
|
|
write_string(m.names()[0]->cf_name);
|
|
}
|
|
|
|
for (auto const& name : m.names()) {
|
|
if (!global_tables_spec) {
|
|
write_string(name->ks_name);
|
|
write_string(name->cf_name);
|
|
}
|
|
write_string(name->name->text());
|
|
type_codec::encode(*this, name->type);
|
|
}
|
|
}
|
|
|
|
}
|