/* -*- Mode: C++; tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- */ /* * Copyright 2020 Couchbase, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #pragma once #include <document_id.hxx> #include <protocol/cmd_exists.hxx> #include <io/retry_context.hxx> namespace couchbase::operations { struct exists_response { enum class observe_status { invalid, found, not_found, persisted, logically_deleted }; document_id id; std::uint32_t opaque; std::error_code ec{}; std::uint16_t partition_id{}; std::uint64_t cas{}; observe_status status{ observe_status::invalid }; }; struct exists_request { using encoded_request_type = protocol::client_request<protocol::exists_request_body>; using encoded_response_type = protocol::client_response<protocol::exists_response_body>; document_id id; std::uint16_t partition{}; std::uint32_t opaque{}; std::chrono::milliseconds timeout{ timeout_defaults::key_value_timeout }; io::retry_context<io::retry_strategy::best_effort> retries{ false }; void encode_to(encoded_request_type& encoded) { encoded.opaque(opaque); encoded.body().id(partition, id); } }; exists_response make_response(std::error_code ec, exists_request& request, exists_request::encoded_response_type encoded) { exists_response response{ request.id, encoded.opaque(), ec, request.partition }; if (!ec) { response.cas = encoded.body().cas(); response.partition_id = encoded.body().partition_id(); switch (encoded.body().status()) { case 0x00: response.status = exists_response::observe_status::found; break; case 0x01: response.status = exists_response::observe_status::persisted; break; case 0x80: response.status = exists_response::observe_status::not_found; break; case 0x81: response.status = exists_response::observe_status::logically_deleted; break; default: spdlog::warn("invalid observe status for \"{}\": {:x}", request.id, encoded.body().status()); response.status = exists_response::observe_status::invalid; break; } } return response; } } // namespace couchbase::operations