71 lines
1.8 KiB
C
71 lines
1.8 KiB
C
/*
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* Copyright (c) 2018 MariaDB Corporation Ab
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*
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* Use of this software is governed by the Business Source License included
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* in the LICENSE.TXT file and at www.mariadb.com/bsl11.
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*
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* Change Date: 2024-06-02
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*
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* On the date above, in accordance with the Business Source License, use
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* of this software will be governed by version 2 or later of the General
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* Public License.
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*/
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#pragma once
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/**
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* @file cdefs.h
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*
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* This file has several purposes.
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*
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* - Its purpose is the same as that of x86_64-linux-gnu/sys/cdefs.h, that is,
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* it defines things that are dependent upon the compilation environment.
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* - Since this *must* be included as the very first header by all other MaxScale
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* headers, it allows you to redefine things globally, should that be necessary,
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* for instance, when debugging something.
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* - Global constants applicable across the line can be defined here.
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*/
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#include <maxbase/cdefs.h>
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#define MXS_BEGIN_DECLS MXB_BEGIN_DECLS
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#define MXS_END_DECLS MXB_END_DECLS
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/**
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* Define intended for use with strerror.
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*
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* char errbuf[MXS_STRERROR_BUFLEN];
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* strerror_r(errno, errbuf, sizeof(errbuf))
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*/
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#define MXS_STRERROR_BUFLEN 512
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/**
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* Returns the smaller of two items.
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*
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* @param a A value.
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* @param b Another value.
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*
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* @return a if a is smaller than b, b otherwise.
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*
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* @note This a macro, so the arguments will be evaluated more than once.
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*/
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#define MXS_MIN(a, b) ((a) < (b) ? (a) : (b))
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/**
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* Returns the larger of two items.
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*
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* @param a A value.
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* @param b Another value.
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*
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* @return a if a is larger than b, b otherwise.
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*
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* @note This a macro, so the arguments will be evaluated more than once.
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*/
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#define MXS_MAX(a, b) ((a) > (b) ? (a) : (b))
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/**
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* Define function attributes
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*
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* The function attributes are compiler specific.
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*/
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#define mxs_attribute mxb_attribute
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