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/* * Copyright (c) 2015, 2023, Oracle and/or its affiliates. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License, version 2.0, * as published by the Free Software Foundation. * * This program is also distributed with certain software (including * but not limited to OpenSSL) that is licensed under separate terms, * as designated in a particular file or component or in included license * documentation. The authors of MySQL hereby grant you an additional * permission to link the program and your derivative works with the * separately licensed software that they have included with MySQL. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License, version 2.0, for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA */ #ifndef _XPL_EXPECT_H_ #define _XPL_EXPECT_H_ #include "ngs/protocol_encoder.h" #include <list> #include "ngs_common/protocol_protobuf.h" namespace xpl { class Expect_condition { public: virtual ~Expect_condition() {} virtual Expect_condition *copy() = 0; virtual ngs::Error_code check() = 0; uint32_t key() const { return m_key; } void set_key(uint32_t k) { m_key = k; } private: uint32_t m_key; }; class Expectation { public: Expectation() : m_fail_on_error(false), m_gtid_wait_less_than(0) {} Expectation(const Expectation &other); ~Expectation(); Expectation &operator =(const Expectation &other); // whether an error occurred previously in a no_error block void set_failed(const std::string &reason) { m_failed = reason; } std::string failed_condition() const { return m_failed; } bool failed() const { return !m_failed.empty(); } bool fail_on_error() const { return m_fail_on_error; } ngs::Error_code check(); void unset(uint32_t key); ngs::Error_code set(uint32_t key, const std::string &value); void swap(Expectation &one, Expectation &other); void add_condition(Expect_condition *cond); private: std::list<Expect_condition*> m_conditions; std::string m_failed; bool m_fail_on_error; int m_gtid_wait_less_than; }; class Expectation_stack { public: Expectation_stack(); ngs::Error_code open(const Mysqlx::Expect::Open &open); ngs::Error_code close(); // called before executing client statements. should signal error if one is returned ngs::Error_code pre_client_stmt(int8_t msgid); // called when an error occurs executing client statements void post_client_stmt(int8_t msgid, const ngs::Error_code &error); private: std::vector<Expectation> m_expect_stack; }; } #endif