98 lines
3.1 KiB
C++
98 lines
3.1 KiB
C++
/* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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This program 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, version 2.0, for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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/**
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@addtogroup Replication
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@{
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@file event_reader_macros.h
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@brief Contains macros used by libbinlogevents deserialization.
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*/
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#ifndef EVENT_READER_MACROS_INCLUDED
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#define EVENT_READER_MACROS_INCLUDED
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namespace binary_log {
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/*
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Macro to be sourced by all event constructors to skip trying to deserialize a
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buffer that already found errors.
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*/
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#define READER_TRY_INITIALIZATION \
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if (!header()->get_is_valid()) BAPI_VOID_RETURN
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/*
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Macro to be sourced by all event constructors to skip trying to deserialize a
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buffer once finding errors.
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*/
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#define READER_CATCH_ERROR \
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event_reader_footer: \
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header()->set_is_valid(READER_CALL(has_error) == false)
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/*
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Macro to be used to wrap calls to Event_reader functions that does not
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return values (void) or when the returned value is not needed.
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*/
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#define READER_CALL(func, ...) reader().func(__VA_ARGS__)
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/*
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Same as READER_CALL, but checking if Event_reader entered error state.
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*/
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#define READER_TRY_CALL(func, ...) \
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READER_CALL(func, __VA_ARGS__); \
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if (reader().get_error()) goto event_reader_footer
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/*
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Macro to be used to wrap calls to Event_reader functions that return values.
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*/
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#define READER_SET(var, func, ...) \
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BAPI_PRINT("debug", ("Event_reader::SET %s", #var)); \
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var = reader().func(__VA_ARGS__)
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/*
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Same as READER_SET, but checking if Event_reader entered error state.
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*/
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#define READER_TRY_SET(var, func, ...) \
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READER_SET(var, func, __VA_ARGS__); \
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if (reader().get_error()) goto event_reader_footer
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/*
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Macro to be used when event deserialization find illegal values or conditions.
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*/
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#define READER_THROW(message) \
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{ \
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reader().set_error(message); \
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goto event_reader_footer; \
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}
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/*
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Macro to assert that the cursor is in a specified position.
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*/
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#define READER_ASSERT_POSITION(pos) BAPI_ASSERT(READER_CALL(position) == pos)
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} // end namespace binary_log
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/**
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@} (end of group Replication)
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*/
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#endif /* EVENT_READER_MACROS_INCLUDED */
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